Vulcan Seals Type 1688

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Vulcan Seals Type 1688

Phone : +44 (0) 114 249 3333

Email : contact@vulcanseals.com

Vulcan Seals Type 1688

Technical Data Sheet

Product Description

A highly proficient, widely utilised, ‘O’-ring mounted, shaft directional dependent, conical spring mechanical seal. jj

Supplied as standard with a solid Stainless Steel head and a Carbon Type 12 stationary seat to suit non-DIN housing dimensions.

The head is an inserted design if a Carbide face is specified; all stationaries are monolithic.

Why Choose the Vulcan Seals Type 1688?

The design of the Vulcan Seals Type 1688 head ensures the 'O'-ring is supported by the set-screw fixed barrel, providing superior performance against service pressure variations and minimising shaft fretting.
The compact design and set-screw mounting of the Vulcan Seals Type 1688 allow installation in very short-length seal chambers.
The Vulcan Seals Type 1688 is highly suited to rotary lobe pumps due to the short installation length, reduced radial clearance, and design suited to slow shaft speed operation.
The one-piece sinusoidal wave spring provides superior strength and reliability compared to cut-section wave springs, which are not as robust.

Standard Face Material Combinations

Rotary Face

Stationary Face

Complete Seal Code

304 Stainless Steel

VCP1 Carbon

Guaranteed stock elastomers: Viton^TM/FKM, EP and Nitrile
Guaranteed stock metallurgy: 304SSSpecify right hand clockwise or left hand anti-clockwise coil upon ordering
*Non-stock guarantee

Elastomer Temperature Capabilities

Minimum

Maximum

Nitrile

-30°C

+120°C

Pressure:

Up to 14 bar (203 psi)

Mechanical Seal Replacement Range

Vulcan Seals Type 1688 is a dimensional replacement mechanical seal for the following seal ranges:

AES® | Type N-W01*
John Crane® | Type 80*
John Crane® | Type DF**
Lidering® | Type 270*
Roten® | Roten® 7KS*

*Rotary Face | **Stationary Face

Phone : +44 (0) 114 249 3333

Email : contact@vulcanseals.com

Dimensional Data

DØ (Metric)	Size Code	D1	D4	DINS L1	DINL L2	DINL Slot Width	DINL Slot Depth
10	0100	21.00	16.42	6.60	10.00	4.00	5.00
12	0120	23.00	18.42	6.60	10.00	4.00	5.00
14	0140	25.00	20.42	6.60	10.00	4.00	5.00
16	0160	27.00	22.42	6.60	10.00	4.00	5.00
18	0180	33.00	26.6	7.50	11.50	4.00	5.50
20	0200	35.00	28.6	7.50	11.50	4.00	5.50
22	0220	37.00	30.6	7.50	11.50	4.00	5.50
24	0240	39.00	32.6	7.50	11.50	4.00	5.50
25	0250	40.00	33.6	7.50	11.50	4.00	5.50
28	0280	43.00	36.6	7.50	11.50	4.00	5.50
30	0300	45.00	38.6	7.50	11.50	4.00	5.50
32	0320	48.00	41.6	7.50	11.50	4.00	5.50
33	0330	48.00	41.6	7.50	11.50	4.00	5.50
35	0350	50.00	43.8	7.50	11.50	4.00	5.50
38	0380	56.00	48.8	9.00	14.00	5.00	5.50
40	0400	58.00	50.8	9.00	14.00	5.00	5.50
43	0430	61.00	53.8	9.00	14.00	5.00	5.50
45	0450	63.00	55.8	9.00	14.00	5.00	5.50
48	0480	66.00	58.8	9.00	14.00	5.00	5.50
50	0500	70.00	61.25	9.50	15.00	5.00	5.50
53	0530	73.00	64.25	11.00	15.00	5.00	5.50
55	0550	75.00	66.25	11.00	15.00	5.00	5.50
58	0580	78.00	69.25	11.00	15.00	5.00	5.50
60	0600	80.00	71.25	11.00	15.00	5.00	5.50
63	0630	83.00	74.25	11.00	15.00	5.00	5.50
65	0650	85.00	76.25	11.00	15.00	5.00	5.50
68	0680	90.00	80.5	11.30	18.00	5.00	5.50
70	0700	92.00	82.6	11.30	18.00	5.00	5.50
75	0750	97.00	87.6	11.30	18.00	5.00	5.50
80	0800	105.00	94.7	12.00	18.20	5.00	5.50
85	0850	110.00	99.7	14.00	18.20	5.00	5.50
90	0900	115.00	104.7	14.00	18.20	5.00	5.50
95	0950	120.00	109.7	14.00	17.20	5.00	5.50
100	1000	125.00	114.7	14.00	17.20	5.00	5.50

DØ (Imperial)	DØ (Metric)	Size Code	D3		L1		No of Set Screws
			in	mm	in	mm
0.375		0095	0.748	19.00	0.295	7.50	3 x 120°
	10	0100	0.748	19.00	0.295	7.50	3 x 120°
	12	0120	0.827	21.00	0.295	7.50	3 x 120°
0.5		0127	0.827	21.00	0.295	7.50	3 x 120°
	14	0140	0.906	23.00	0.295	7.50	3 x 120°
	15	0150	0.945	24.00	0.295	7.50	3 x 120°
0.625		0158	0.984	25.00	0.295	7.50	3 x 120°
	16	0160	0.984	25.00	0.295	7.50	3 x 120°
	18	0180	1.22	31.00	0.295	7.50	3 x 120°
0.75		0191	1.22	31.00	0.295	7.50	3 x 120°
	20	0200	1.299	33.00	0.295	7.50	3 x 120°
	22	0220	1.378	35.00	0.295	7.50	3 x 120°
0.875		0222	1.378	35.00	0.295	7.50	3 x 120°
	24	0240	1.457	37.00	0.295	7.50	3 x 120°
	25	0250	1.496	38.00	0.349	10.00	3 x 120°
1		0254	1.496	38.00	0.349	10.00	3 x 120°
	28	0280	1.614	41.00	0.349	10.00	3 x 120°
1.125		0286	1.614	41.00	0.349	10.00	3 x 120°
	30	0300	1.693	43.00	0.349	10.00	3 x 120°
1.25		0317	1.772	45.00	0.349	10.00	3 x 120°
	32	0320	1.772	45.00	0.394	10.00	3 x 120°
	33	0330	1.811	46.00	0.394	10.00	3 x 120°
1.375		0349	1.89	48.00	0.394	10.00	3 x 120°
	35	0350	1.89	48.00	0.394	10.00	3 x 120°
	38	0380	2.087	53.00	0.394	10.00	3 x 120°
1.5		0381	2.087	53.00	0.394	10.00	3 x 120°
	40	0400	2.165	55.00	0.394	10.00	3 x 120°
1.625		0412	2.165	55.00	0.394	10.00	3 x 120°
	43	0430	2.283	58.00	0.394	10.00	3 x 120°
1.75		0444	2.362	60.00	0.394	10.00	3 x 120°
	45	0450	2.362	60.00	0.394	10.00	3 x 120°
1.875		0476	2.48	63.00	0.394	10.00	3 x 120°

DØ (Imperial)	DØ (Metric)	Size Code	D3		L1		No of Set Screws
			in	mm	in	mm
	48	480	2.48	63.00	0.394	10.00	3 x 120°
	50	500	2.559	65.00	0.394	10.00	3 x 120°
2.000		508	2.559	65.00	0.394	10.00	3 x 120°
	53	530	2.677	68.00	0.394	10.00	3 x 120°
2.125		539	2.677	68.00	0.394	10.00	3 x 120°
	55	550	2.756	70.00	0.394	10.00	3 x 120°
2.250		571	2.756	70.00	0.394	10.00	3 x 120°
	58	580	3.031	77.00	0.394	10.00	3 x 120°
	60	600	3.11	79.00	0.394	10.00	3 x 120°
2.375		603	3.11	79.00	0.394	10.00	3 x 120°
2.500		635	3.228	82.00	0.394	10.00	3 x 120°
	65	650	3.307	84.00	0.472	12.00	3 x 120°
2.625		666	3.307	84.00	0.472	12.00	3 x 120°
	68	680	3.425	87.00	0.472	12.00	3 x 120°
2.750		698	3.504	89.00	0.472	12.00	3 x 120°
	70	700	3.504	89.00	0.472	12.00	3 x 120°
2.875		730	3.74	95.00	0.472	12.00	3 x 120°
	75	750	3.858	98.00	0.472	12.00	3 x 120°
3.000		762	3.858	98.00	0.472	12.00	3 x 120°
3.125		794	4.055	103.00	0.472	12.00	3 x 120°
	80	800	4.055	103.00	0.472	12.00	3 x 120°
3.250		825	4.055	103.00	0.472	12.00	3 x 120°
	85	850	4.252	108.00	0.472	12.00	3 x 120°
3.375		857	4.252	108.00	0.472	12.00	3 x 120°
3.500		889	4.449	113.00	0.472	12.00	3 x 120°
	90	900	4.449	113.00	0.472	12.00	3 x 120°
3.625*		921	4.449	113.00	0.472	12.00	3 x 120°
	95*	950	4.646	118.00	0.472	12.00	3 x 120°
3.750*		953	4.646	118.00	0.472	12.00	3 x 120°
3.875*		984	4.764	121.00	0.472	12.00	3 x 120°
	100*	1000	4.843	123.00	0.472	12.00	3 x 120°
4.000*		1016	4.843	123.00	0.59	15.00	3 x 120°

DØ (Metric)	Size Code	Type 8STD		Type 8B		Type 12		Type 12DIN		Type 13		Type 13DIN
		D1	L1	D1	L1	D1	L1	D1	L1	D1	L1
10	0100	19.20	6.60	19.20	7.10	18.10	5.50	21.00	7.00	18.10	5.50	21.00	7.00
11	0110	--	--	--	--	20.60	5.50	--	--	20.60	5.50	--	--
12	0120	21.60	5.60	21.60	7.60	20.60	5.50	23.00	7.00	20.60	5.50	23.00	7.00
13	0130	--	--	--	--	23.10	6.00	--	--	23.10	6.00	--	--
14	0140	24.60	5.60	24.60	7.60	23.10	6.00	25.00	7.00	23.10	6.00	25.00	7.00
15	0150	24.60	6.60	24.60	8.60	26.90	7.00	--	--	26.90	7.00	--	--
16	0160	28.00	7.50	28.00	9.00	26.90	7.00	27.00	7.00	26.90	7.00	27.00	7.00
17	0170	--	--	--	--	26.90	7.00	--	--	26.90	7.00	--	--
18	0180	30.00	8.00	30.00	10.00	30.90	8.00	33.00	10.00	30.90	8.00	33.00	10.00
19	0190	31.00	7.50	31.00	9.00	30.90	8.00	--	--	30.90	8.00	--	--
20	0200	35.00	7.50	35.00	9.50	30.90	8.00	35.00	10.00	30.90	8.00	35.00	10.00
21	0210	--	--	--	--	35.40	8.00	--	--	35.40	8.00	--	--
22	0220	35.00	7.50	35.00	9.50	35.40	8.00	37.00	10.00	35.40	8.00	37.00	10.00
23	0230	--	--	--	--	35.40	8.00	--	--	35.40	8.00	--	--
24	0240	38.00	7.50	38.00	9.50	35.40	8.00	39.00	10.00	35.40	8.00	39.00	10.00
25	0250	38.00	7.50	38.00	9.50	38.20	8.50	40.00	10.00	38.20	8.50	40.00	10.00
26	0260	40.00	8.00	40.00	10.00	38.20	8.50	--	--	--	--	--	--
28	0280	42.00	9.00	42.00	11.00	43.30	9.00	43.00	10.00	43.30	9.00	43.00	10.00
30	0300	45.00	10.50	45.00	11.00	43.30	9.00	45.00	10.00	43.30	9.00	45.00	10.00
32	0320	48.00	10.50	48.00	11.00	43.30	9.00	48.00	10.00	43.30	9.00	48.00	10.00
33	0330	50.00	11.00	--	--	53.50	11.50	48.00	10.00	53.50	9.00	48.00	10.00
35	0350	52.00	11.00	52.00	11.50	53.50	11.50	50.00	10.00	53.50	11.50	50.00	10.00
38	0380	55.00	10.30	55.00	11.50	60.50	11.50	56.00	13.00	60.50	11.50	56.00	13.00
40	0400	58.00	10.80	58.00	11.50	60.50	11.50	58.00	13.00	60.50	11.50	58.00	13.00
42	0420	62.00	12.00	62.00	14.30	60.50	11.50	--	--	--	--	--	--
43	0430	62.00	12.00	62.00	14.30	60.50	11.50	61.00	13.00	--	--	--	--
44	0440	--	--	--	--	65.50	11.50	--	--	--	--	--	--
45	0450	64.00	11.60	64.00	14.30	65.50	11.50	63.00	13.00	--	--	--	--
48	0480	68.40	11.60	68.40	14.30	65.50	11.50	66.00	13.00	--	--	--	--
50	0500	69.30	11.60	69.30	14.30	72.50	11.50	70.00	14.00	--	--	--	--
53	0530	--	--	--	--	--	--	73.00	14.00	--	--	--	--
55	0550	75.40	13.30	75.40	15.30	72.50	11.50	75.00	14.00	--	--	--	--
58	0580	78.40	13.30	78.40	15.30	--	--	78.00	14.00	--	--	--	--
60	0600	80.40	13.30	80.40	15.30	79.30	11.50	80.00	14.00	--	--	--	--
63	0630	--	--	--	--	--	--	83.00	14.00	--	--	--	--
65	0650	85.40	13.00	85.40	15.30	84.50	11.50	85.00	14.00	--	--	--	--
68	0680	91.50	13.70	91.50	16.00	--	--	90.00	16.00	--	--	--	--
70	0700	92.00	13.00	92.00	15.30	89.50	11.50	92.00	16.00	--	--	--	--
75	0750	99.00	14.00	99.00	15.30	94.50	11.50	97.00	16.00	--	--	--	--
80	0800	104.00	15.00	104.00	16.30	99.50	11.50	105.00	18.00	--	--	--	--
85	0850	109.00	14.80	--	--	105.50	13.50	110.00	18.00	--	--	--	--
90	0900	114.00	14.80	--	--	111.50	13.50	115.00	18.00	--	--	--	--
95	0950	120.30	15.80	--	--	116.50	13.50	120.00	18.00	--	--	--	--
100	1000	123.30	15.80	--	--	119.50	13.50	125.00	18.00	--	--	--	--

			Type 21				Type 31
DØ (Imperial)	DØ (Metric)	Size Code	D1		L1		D1		L1
			in	mm	in	mm	in	mm	in	mm
0.375	10	0095	0.969	24.60	0.344	8.74	0.812	20.62	0.312	7.93
	12	0120	1.094	27.79	0.344	8.74	--	--	--	--
0.500		0127	1.094	27.79	0.344	8.74	1	25.1	0.312	7.93
0.625	16	0158	1.219	30.95	0.406	10.32	1.25	31.75	0.405	10.28
	18*	0180	1.344	34.15	0.406	10.32	--	--	--	--
0.750	19	0191	1.344	34.15	0.406	10.32	1.375	34.93	0.405	10.28
	20*	0200	1.406	35.70	0.406	10.32	--	--	--	--
0.875	22	0222	1.469	37.30	0.406	10.32	1.5	38.1	0.406	10.32
1.000	25	0254	1.594	40.50	0.406	10.32	1.625	41.28	0.437	11.10
	28	0280	1.875	47.63	0.472	11.99	--	--	--	--
1.125		0286	1.875	47.63	0.472	11.99	1.75	44.44	0.437	11.10
	30*	0300	2.000	50.80	0.472	11.99	--	--	--	--
1.250	32	0317	2.000	50.80	0.472	11.99	1.875	47.63	0.437	11.10
	33*	0330	2.125	53.98	0.472	11.99	--	--	--	--
1.375	35	0349	2.125	53.98	0.472	11.99	2	50.8	0.437	11.1
1.500	38	0381	2.250	57.15	0.472	11.99	2.125	53.98	0.437	11.1
	40*	0400	2.375	60.33	0.472	11.99	--	--	--	--
1.625		0412	2.375	60.33	0.472	11.99	2.375	60.33	0.5	12.7
	43*	0430	2.500	63.50	0.472	11.99	--	--	--	--
1.750	45	0444	2.500	63.50	0.472	11.99	2.5	63.5	0.5	12.7
1.875	48	0476	2.625	66.68	0.472	11.99	2.625	66.68	0.5	12.7
	50	0500	2.750	69.85	0.531	13.50	--	--	--	--
2.000		0508	2.750	69.85	0.531	13.50	2.75	69.85	0.5	12.7
	53	0530	2.875	73.03	0.531	13.50	--	--	--	--
2.125		0539	2.875	73.03	0.531	13.50	3	76.2	0.562	14.28
	55*	0550	3.000	76.20	0.531	13.50	--	--	--	--
2.250		0571	3.000	76.20	0.531	13.50	3.125	79.38	0.562	14.28
2.375	60	0603	3.125	79.38	0.531	13.50	3.25	82.55	0.562	14.28
2.500		0635	3.250	82.55	0.531	13.50	3.375	85.73	0.562	14.28
	65*	0650	3.625	92.08	0.625	15.88	--	--	--	--
2.625		0666	3.625	92.08	0.625	15.88	3.375	85.73	0.625	15.88
2.750	70	0698	3.750	95.25	0.625	15.88	3.5	88.9	0.625	15.88
2.875		0730	3.875	98.43	0.625	15.88	3.75	95.25	0.625	15.88
	75*	0750	4.000	101.60	0.625	15.88	--	--	--	--
3.000		0762	4.000	101.60	0.625	15.88	3.875	98.43	0.625	15.88
3.125*	80*	0794	4.375	111.13	0.783	19.88	4	101.6	0.783	19.88
3.250*		0825	4.500	114.30	0.783	19.88	4.125	104.78	0.783	19.88
3.375*	85*	0857	4.625	117.48	0.783	19.88	4.25	107.95	0.783	19.88
3.500*	90*	0889	4.750	120.65	0.783	19.88	4.375	111.13	0.783	19.88
3.625*		0921	4.875	123.83	0.783	19.88	4.5	114.3	0.783	19.88
3.750*	95*	0953	5.000	127.00	0.783	19.88	4.625	117.48	0.783	19.88
3.875*		0984	5.125	130.17	0.783	19.88	--	--	--	--
	100*	1000	4.875	123.83	0.783	19.88	--	--	--	--
4.000*		1016	5.250	133.35	0.783	19.88	4.875	123.83	0.783	19.88

DØ (Imperial)	Size Code	D2		D3		L1		L2		Slot P.C.D.		O'-ring Size
DØ (Imperial)	Size Code	in	mm	in	mm	in	mm	in	mm	in	mm	O'-ring Size
0.500*	0127	0.543	13.80	0.996	25.30	0.311	7.90	0.098	2.50	0.780	19.80	BS214
0.625*	0158	0.669	16.98	1.246	31.65	0.406	10.30	0.098	2.50	0.953	24.20	BS218
0.750*	0191	0.793	20.15	1.371	34.82	0.406	10.30	0.098	2.50	1.093	27.75	BS220
0.875*	0222	0.919	23.33	1.496	38.00	0.406	10.30	0.098	2.50	1.220	31.00	BS222
1.000	0254	1.043	26.50	1.621	41.18	0.439	11.15	0.098	2.50	1.343	34.10	BS223
1.125	0286	1.184	30.08	1.746	44.35	0.439	11.15	0.098	2.50	1.469	37.30	BS224
1.250	0317	1.309	33.25	1.871	47.53	0.439	11.15	0.098	2.50	1.594	40.50	BS225
1.375	0349	1.434	36.43	1.996	50.70	0.439	11.15	0.098	2.50	1.717	43.60	BS226
1.500	0381	1.559	39.60	2.121	53.88	0.439	11.15	0.098	2.50	1.843	46.80	BS227
1.625	0412	1.684	42.78	2.371	60.23	0.502	12.75	0.118	3.00	2.031	51.60	BS229
1.750	0444	1.809	45.95	2.496	63.40	0.502	12.75	0.118	3.00	2.157	54.80	BS230
1.875	0476	1.934	49.13	2.621	66.58	0.502	12.75	0.118	3.00	2.280	57.90	BS231
2.000	0508	2.059	52.30	2.746	69.75	0.502	12.75	0.118	3.00	2.406	61.10	BS232
2.125	0539	2.184	55.48	2.996	76.10	0.564	14.33	0.138	3.50	2.594	65.90	BS234
2.250	0571	2.309	58.65	3.121	79.28	0.564	14.33	0.138	3.50	2.717	69.00	BS235
2.375	0603	2.434	61.83	3.246	82.45	0.564	14.33	0.138	3.50	2.843	72.20	BS236
2.500	0635	2.559	65.00	3.371	85.63	0.564	14.33	0.138	3.50	2.969	75.40	BS237
2.625	0666	2.684	68.18	3.371	85.63	0.627	15.93	0.138	3.50	3.031	77.00	BS237
2.750	0698	2.809	71.35	3.496	88.80	0.627	15.93	0.138	3.50	3.157	80.20	BS238
2.875	0730	2.934	74.53	3.746	95.15	0.627	15.93	0.138	3.50	3.343	84.90	BS240
3.000	0762	3.059	77.70	3.871	98.33	0.627	15.93	0.138	3.50	3.469	88.10	BS241
3.125*	0794	3.225	81.92	3.996	101.50	0.781	19.84	0.138	3.50	3.594	91.30	BS242
3.250*	0825	3.350	85.10	4.121	104.68	0.781	19.84	0.138	3.50	3.717	94.40	BS243
3.375*	0857	3.475	88.27	4.246	107.85	0.781	19.84	0.138	3.50	3.843	97.60	BS244
3.500*	0889	3.600	91.44	4.371	111.03	0.781	19.84	0.138	3.50	3.969	100.80	BS245
3.625*	0921	3.725	94.62	4.496	114.20	0.781	19.84	0.138	3.50	4.094	104.00	BS246
3.750*	0953	3.850	97.79	4.621	117.38	0.781	19.84	0.138	3.50	4.217	107.10	BS247
3.875*	0984	3.975	100.97	4.746	120.55	0.781	19.84	0.138	3.50	4.343	110.30	BS248
4.000*	1016	4.100	104.14	4.871	123.73	0.781	19.84	0.138	3.50	4.469	113.50	BS249

DØ (Imperial)	Size Code	D1		D2		L1		L2		PIN PCD		PIN Ø
DØ (Imperial)	Size Code	in	mm	in	mm	in	mm	in	mm	in	mm	in	mm
0.500*	0127	1.000	25.40	0.543	13.80	0.313	7.95	0.112	2.85	0.687	17.46	0.0790	2.00
0.625	0158	1.250	31.75	0.669	16.98	0.405	10.28	0.157	4.00	0.813	20.64	0.0790	2.00
0.750*	0191	1.375	34.93	0.792	20.12	0.405	10.28	0.157	4.00	0.937	23.81	0.0790	2.00
0.875	0222	1.500	38.10	0.919	23.33	0.405	10.28	0.157	4.00	1.063	26.99	0.0790	2.00
1.000	0254	1.625	41.28	1.043	26.50	0.437	11.10	0.161	4.10	1.187	30.15	0.0790	2.00
1.125	0286	1.750	44.44	1.184	30.08	0.437	11.10	0.161	4.10	1.313	33.35	0.0790	2.00
1.250	0317	1.875	47.63	1.309	33.25	0.437	11.10	0.161	4.10	1.437	36.50	0.0790	2.00
1.375	0349	2.000	50.80	1.435	36.45	0.437	11.10	0.161	4.10	1.563	39.70	0.0790	2.00
1.500	0381	2.125	53.98	1.559	39.60	0.437	11.10	0.161	4.10	1.687	42.85	0.0790	2.00
1.625	0412	2.375	60.33	1.684	42.78	0.500	12.70	0.165	4.20	1.875	47.63	0.1180	3.00
1.750	0444	2.500	63.50	1.809	45.95	0.500	12.70	0.165	4.20	2.000	50.80	0.1180	3.00
1.875	0476	2.625	66.68	1.934	49.13	0.500	12.70	0.165	4.20	2.125	53.98	0.1180	3.00
2.000	0508	2.750	69.85	2.059	52.30	0.500	12.70	0.165	4.20	2.250	57.15	0.1180	3.00
2.125	0539	3.000	76.20	2.184	55.48	0.562	14.28	0.177	4.50	2.375	60.33	0.1180	3.00
2.250	0571	3.125	79.38	2.309	58.65	0.562	14.28	0.177	4.50	2.500	63.50	0.1180	3.00
2.375	0603	3.250	82.55	2.438	61.93	0.562	14.28	0.177	4.50	2.625	66.68	0.1180	3.00
2.500	0635	3.375	85.73	2.559	65.00	0.562	14.28	0.177	4.50	2.750	69.85	0.1180	3.00
2.625	0666	3.375	85.73	2.684	68.18	0.625	15.88	0.173	4.40	2.875	73.03	0.1180	3.00
2.750*	0698	3.500	88.90	2.809	71.35	0.625	15.88	0.173	4.40	3.000	76.20	0.1180	3.00
2.875	0730	3.750	95.25	2.934	74.53	0.625	15.88	0.173	4.40	3.125	79.38	0.1180	3.00
3.000	0762	3.875	98.43	3.059	77.70	0.625	15.88	0.173	4.40	3.250	82.55	0.1180	3.00
3.125	0794	4.000	101.60	3.225	81.92	0.783	19.88	0.177	4.50	3.376	85.75	0.1180	3.00
3.250	0825	4.125	104.78	3.350	85.09	0.783	19.88	0.177	4.50	3.500	88.90	0.1180	3.00
3.375	0857	4.250	107.95	3.475	88.27	0.783	19.88	0.177	4.50	3.624	92.05	0.1180	3.00
3.500	0889	4.375	111.13	3.600	91.44	0.783	19.88	0.177	4.50	3.750	95.25	0.1180	3.00
3.625	0921	4.500	114.30	3.725	94.62	0.783	19.88	0.177	4.50	3.874	98.40	0.1180	3.00
3.750	0953	4.625	117.48	3.850	97.79	0.783	19.88	0.177	4.50	4.000	101.60	0.1180	3.00
3.875	0984	4.750	120.65	3.975	100.97	0.783	19.88	0.177	4.50	4.125	104.78	0.1180	3.00
4.000	1016	4.875	123.83	4.100	104.14	0.783	19.88	0.177	4.50	4.250	107.95	0.1180	3.00

DØ (Imperial)	DØ (Metric)	Size Code	Type 11				Type 20				Type 19B		Type 24
			D1		L1		D1		L1		D1	L1	D1	L1
			in	mm	in	mm	in	mm	in	mm	D1	L1	D1	L1
0.375		0095	0.875	22.23	0.312	7.93	0.969	24.6	0.344	8.74	--	--	--	--
	10	0100	0.875	22.23	0.312	7.93	0.969	24.6	0.344	8.74	21.00	6.60	21.00	8.60
	12	0120	1.000	25.40	0.312	7.93	1.094	27.79	0.344	8.74	23.00	6.60	23.00	8.60
0.500		0127	1.000	25.40	0.312	7.93	1.094	27.79	0.344	8.74	--	--	--	--
	13	0130	1.000	25.40	0.312	7.93	1.094	27.79	0.344	8.74	--	--	--	--
	14	0140	1.250	31.75	0.405	10.28	1.219	30.95	0.406	10.32	25.00	6.60	25.00	8.60
	15	0150	--	--	--	--	1.219	30.95	0.406	10.32	27.00	6.60	27.00	8.60
0.625		0158	1.250	31.75	0.405	10.28	1.219	30.95	0.406	10.32	--	--	--	--
	16	0160	1.250	31.75	0.405	10.28	1.219	30.95	0.406	10.32	27.00	6.60	27.00	8.60
	18	0180	1.375	34.93	0.405	10.28	1.344	34.15	0.406	10.32	33.00	7.50	33.00	10.00
0.750		0191	1.375	34.93	0.405	10.28	1.344	34.15	0.406	10.32	--	--	--	--
	20	0200	1.500	38.10	0.405	10.28	1.406	35.7	0.406	10.32	35.00	7.50	35.00	10.00
	22	0220	1.500	38.10	0.405	10.28	1.469	37.3	0.406	10.32	37.00	7.50	37.00	10.00
0.875		0222	1.500	38.10	0.405	10.28	1.469	37.3	0.406	10.32	--	--	--	--
	24	0240	1.625	41.28	0.437	11.10	1.594	40.5	0.406	10.32	39.00	7.50	39.00	10.00
	25	0250	1.625	41.28	0.437	11.10	1.594	40.5	0.406	10.32	40.00	7.50	40.00	10.00
1		0254	1.625	41.28	0.437	11.10	1.594	40.5	0.406	10.32	--	--	--	--
	28	0280	1.750	44.44	0.437	11.10	1.875	47.63	0.472	11.99	43.00	7.50	43.00	10.00
1.125		0286	1.750	44.44	0.437	11.10	1.875	47.63	0.472	11.99	--	--	--	--
	30	0300	1.875	47.63	0.437	11.10	2	50.8	0.472	11.99	45.00	7.50	45.00	10.00
1.250		0317	1.875	47.63	0.437	11.10	2	50.8	0.472	11.99	--	--	--	--
	32	0320	1.875	47.63	0.437	11.10	2	50.8	0.472	11.99	48.00	7.50	48.00	10.00
	33	0330	2.000	50.80	0.437	11.10	2.125	53.98	0.472	11.99	48.00	7.50	48.00	10.00
1.375	35	0350	2.000	50.80	0.437	11.10	2.125	53.98	0.472	11.99	50.00	7.50	50.00	10.00
1.500	38	0380	2.125	53.98	0.437	11.10	2.25	57.15	0.472	11.99	56.00	9.00	56.00	11.00
	40	0400	2.375	60.33	0.500	12.70	2.375	60.33	0.472	11.99	58.00	9.00	58.00	11.00
1.625		0412	2.375	60.33	0.500	12.70	2.375	60.33	0.472	11.99	--	--	--	--
	43	0430	2.500	63.50	0.500	12.70	2.5	63.5	0.472	11.99	61.00	9.00	61.00	11.00
1.750		0444	2.500	63.50	0.500	12.70	2.5	63.5	0.472	11.99	--	--	--	--
	45	0450	2.625	66.68	0.500	12.70	2.5	63.5	0.472	11.99	63.00	9.00	63.00	11.00
1.875		0476	2.625	66.68	0.500	12.70	2.625	66.68	0.472	11.99	--	--	--	--
	48	0480	2.750	69.85	0.500	12.70	2.625	66.68	0.472	11.99	66.00	9.00	66.00	11.00
	50	0500	2.750	69.85	0.500	12.70	2.75	69.85	0.531	13.5	70.00	9.50	70.00	13.00
2		0508	2.750	69.85	0.500	12.70	2.75	69.85	0.531	13.5	--	--	--	--
	53	0530	3.000	76.20	0.562	14.28	2.875	73.03	0.531	13.5	73.00	11.00	73.00	13.00
2.125		0539	3.000	76.20	0.562	14.28	2.875	73.03	0.531	13.5	--	--	--	--
	55	0550	3.125	79.38	0.562	14.28	3	76.2	0.531	13.5	75.00	11.00	75.00	13.00
2.250		0571	3.125	79.38	0.562	14.28	3	76.2	0.531	13.5	--	--	--	--
	58	0580	3.250	82.55	0.562	14.28	3.125	79.38	0.531	13.5	78.00	11.00	78.00	13.00
	60	0600	3.250	82.55	0.562	14.28	3.125	79.38	0.531	13.5	80.00	11.00	80.00	13.00
2.375		0603	3.250	82.55	0.562	14.28	3.125	79.38	0.531	13.5	--	--	--	--
	63	0630	3.375	85.73	0.562	14.28	3.25	82.55	0.531	13.5	--	--	83.00	13.00
2.5		0635	3.375	85.73	0.562	14.28	3.25	82.55	0.531	13.5	--	--	--	--
	65	0650	3.375	85.73	0.625	15.88	3.625	92.08	0.625	15.88	85.00	11.00	85.00	13.00
2.625		666	3.375	85.73	0.625	15.88	3.625	92.08	0.625	15.88	--	--	--	--
2.750		698	3.500	88.90	0.625	15.88	3.75	95.25	0.625	15.88	--	--	--	--
	70	700	3.500	88.90	0.625	15.88	3.75	95.25	0.625	15.88	92.00	11.30	92.00	15.30
2.875		730	3.750	95.25	0.625	15.88	3.875	98.43	0.625	15.88	--	--	--	--
	75	750	3.875	98.43	0.625	15.88	4	101.6	0.625	15.88	97.00	11.30	97.00	15.30
3.000		762	3.875	98.43	0.625	15.88	4	101.6	0.625	15.88	--	--	--	--
3.125		794	4.000	101.60	0.783	19.88	4.375	111.13	0.783	19.88	--	--	--	--
	80	800	--	--	--	--	4.5	114.3	0.783	19.88	105.00	12.00	105.00	15.70
3.250		825	4.125	104.78	0.783	19.88	4.5	114.3	0.783	19.88	--	--	--	--
	85	850	--	--	--	--	4.625	117.48	0.783	19.88	110.00	14.00	110.00	15.70
3.375		857	4.250	107.95	0.783	19.88	4.625	117.48	0.783	19.88	--	--	--	--
3.500		889	4.375	111.13	0.783	19.88	4.75	120.65	0.783	19.88	--	--	--	--
	90	900	--	--	--	--	4.875	123.83	0.783	19.88	115.00	14.00	115.00	15.70
3.625		921	4.500	114.30	0.783	19.88	4.875	123.83	0.783	19.88	--	--	--	--
	95	950	--	--	--	--	5	127	0.783	19.88	120.00	14.00	120.00	15.70
3.750		953	4.625	117.48	0.783	19.88	5	127	0.783	19.88	--	--	--	--
3.875		984	4.750	120.65	0.783	19.88	5.125	130.17	0.783	19.88	--	--	--	--
	100	1000	--	--	--	--	5.25	133.35	0.783	19.88	125.00	14.00	125.00	15.70
4.000		1016	4.875	123.83	0.783	19.88	5.25	133.35	0.783	19.88	--	--	--	--

DØ (Imperial)	DØ (Metric)	Size Code	D1		D2		D3		L1		L2
DØ (Imperial)	DØ (Metric)	Size Code	in	mm	in	mm	in	mm	in	mm	in	mm
0.500	12	0127	1.144	29.05	0.539	13.70	1.563	39.70	0.685	17.40	0.311	7.90
	15	0150	1.256	31.90	0.630	16.00	1.614	41.00	0.685	17.40	0.311	7.90
0.625	16	0158	1.301	33.04	0.661	16.80	1.720	43.69	0.685	17.40	0.311	7.90
0.750	19	0191	1.426	36.21	0.787	20.00	1.831	46.50	0.685	17.40	0.311	7.90
	20	0200	1.453	36.90	0.827	21.00	1.850	47.00	0.685	17.40	0.311	7.90
0.875	22	0222	1.551	39.39	0.913	23.20	1.949	49.50	0.685	17.40	0.311	7.90
	25	0250	1.650	41.90	1.024	26.00	2.047	52.00	0.685	17.40	0.311	7.90
1.000		0254	1.676	42.56	1.039	26.40	2.067	52.50	0.685	17.40	0.311	7.90
1.125	28	0286	1.801	45.74	1.165	29.60	2.303	58.50	1.059	26.90	0.437	11.10
	30	0300	1.917	48.69	1.220	31.00	2.313	58.75	1.059	26.90	0.437	11.10
1.250		0317	1.988	50.50	1.287	32.70	2.500	63.50	1.059	26.90	0.437	11.10
	33*	0330	2.059	52.30	1.339	34.00	2.559	65.00	1.059	26.90	0.437	11.10
1.375	35	0349	2.113	53.68	1.417	36.00	2.579	65.50	1.059	26.90	0.437	11.10
1.500	38	0381	2.238	56.85	1.539	39.10	2.736	69.50	1.059	26.90	0.437	11.10
	40	0400	2.437	61.90	1.614	41.00	2.953	75.00	1.059	26.90	0.437	11.10
1.625		0412	2.488	63.20	1.661	42.20	3.012	76.50	1.059	26.90	0.437	11.10
1.750		0444	2.630	66.38	1.787	45.40	3.130	79.50	1.059	26.90	0.437	11.10
	45	0450	2.634	66.90	1.811	46.00	3.150	80.00	1.059	26.90	0.437	11.10
1.875	48	0476	2.738	69.55	1.929	49.00	3.248	82.50	1.059	26.90	0.437	11.10
	50	0500	2.831	71.90	2.008	51.00	3.346	85.00	1.059	26.90	0.437	11.10
2.000		0508	2.863	72.73	2.039	51.80	3.366	85.50	1.059	26.90	0.437	11.10
2.125		0539	3.113	79.08	2.161	54.90	3.760	95.50	1.312	33.33	0.563	14.30
	55*	0550	3.146	79.90	2.205	56.00	3.780	96.00	1.312	33.33	0.563	14.30
2.250		0571	3.238	82.25	2.287	58.10	3.878	98.50	1.312	33.33	0.563	14.30
	60	0600	3.343	84.90	2.402	61.00	3.976	101.00	1.312	33.33	0.563	14.30
2.375		0603	3363.000	85.43	2.413	61.30	3.996	101.50	1.312	33.33	0.563	14.30
2.500		0635	3.488	88.60	2.539	64.50	4.114	104.50	1.312	33.33	0.563	14.30
	65*	0650	3.539	89.90	2.598	66.00	4.173	106.00	1.312	33.33	0.563	14.30
2.625		0666	3.613	91.78	2.661	67.60	4.272	108.50	1.312	33.33	0.563	14.30
2.750	70	0698	3.736	94.90	2.795	71.00	4.370	111.00	1.312	33.33	0.563	14.30
2.875		0730	3.863	98.13	2.913	74.00	4.508	114.50	1.312	33.33	0.563	14.30
	75*	0750	3.933	99.90	2.992	76.00	4.567	116.00	1.312	33.33	0.563	14.30
3.000		0762	3.926	99.71	3.039	77.20	5.547	115.50	1.312	33.33	0.563	14.30
3.125*		0794	4.051	102.89	3.165	80.40	4.705	119.50	1.312	33.33	0.563	14.30
	80*	0800	4.130	104.90	3.189	81.00	4.764	121.00	1.312	33.33	0.563	14.30
3.250*		0825	4.232	107.50	3.295	83.70	4.862	123.50	1.350	34.30	0.563	14.30
	85*	0850	4.327	109.90	3.386	86.00	4.961	126.00	1.350	34.30	0.563	14.30
3.375*		0857	4.364	110.85	3.421	86.90	5.020	127.50	1.350	34.30	0.563	14.30
3.500*		0889	4.488	114.00	3.539	89.90	5.138	130.50	1.350	34.30	0.563	14.30
	90*	0900	4.508	114.50	3.583	91.00	5.138	130.50	1.350	34.30	0.563	14.30
3.625*		0921	4.610	117.10	3.673	93.30	5.256	133.50	1.350	34.30	0.563	14.30
	95*	0950	4.720	119.90	3.780	96.00	5.354	136.00	1.350	34.30	0.563	14.30
3.750*		0953	4.738	120.35	3.791	96.30	5.374	136.50	1.350	34.30	0.563	14.30
	100*	1000	4.917	124.90	3.976	101.00	5.551	141.00	1.350	34.30	0.563	14.30
4.000*		1016	4.988	126.70	4.039	102.60	5.610	142.50	1.350	34.30	0.563	14.30
4.250*		1079	5.238	133.05	4.291	109.00	5.886	149.50	1.350	34.30	0.563	14.30
4.500*		1143	5.488	139.40	4.539	115.30	6.122	155.50	1.350	34.30	0.563	14.30
5.000*		1270	6.488	164.80	5.039	128.00	7.382	187.50	1.417	36.00	0.630	16.00
5.500*		1397	6.988	177.50	5.539	140.70	7.894	200.50	1.417	36.00	0.630	16.00

*Non-stock guarantee

Phone : +44 (0) 114 249 3333

Email : contact@vulcanseals.com

Maximum Operating Pressure

The PV chart shows the maximum operating pressuresof this Vulcan seal type based on the seal face materialsused. Different lines on the chart indicate different materialcombinations, as shown underneath.

It also assumes stable operation in a clean, cool, lubricatingand non-volatile fluid with an adequate flush rate.

For more in-depth pressure rating calculations based onspecific material combinations and application conditions,please consult us.

PV Chart

Application Conditions

Criteria

Multiplier

Product Fluid

Lubricating fluids

X 1.00

Aqueous solutions / Water

X 0.85

Temperature

Below 70°C (158°F)

X 1.00

71°C to 120°C (160°F to 248°F)

X 0.85

121°C to 175°C (250°F to347°F)

X 0.75

Over 176°C (349°F)

X 0.60

Speed

Up to 1750 rpm

X 1.00

1750 to 3600 rpm

X 0.80

Face and Seat Materials

Combination

Multiplier

Stainless Steel vs Carbon

x 0.30

Example Calculation for Vulcan Seals Type 1688

A. Shaft size: 1” therefore pressure is 12 bar (from PV chart)
B. Media: Water (multiplier = 0.85)
C. Temperature: 50°C (multiplier = 1.00)
D. Speed: 1450 rpm (multiplier = 1.00)E. Face combination: Stainless Steel vs Carbon (multiplier = 0.30)

For this particular Type 12 seal size, the calculation for the approximate guidance maximum operating pressure would be:

A x B x C x D x E12 bar x 0.85 x 1.00 x 1.00 x 0.30 = 3.06 bar

Guidance Only

Please note that due to the many operational andapplication variables that affect seal performance, theinformation given on this page is for guidance only.

We therefore strongly recommend careful individualtesting and monitoring of all seals and related equipmentfor any proposed application.Our policy is one of continuous technical and efficiencyimprovement.

As such, all specifications may be subjectto change without prior notice.

® ™ All product names, brands and trademarks shown are property of their respective owners, are for identification purposes only, and do not imply affiliation nor endorsement.
** Important: These limits are the theoretical elastomer or design limitations. For maximum theoretical operating pressure for your specific size and application please refer to calculation example within this data sheet. All performance information given is for guidance only and is dependent on material, operating and application factors that affect seal performance.

Product Data Sheet

Vulcan Seals Type 1688

AESSEAL® - Type N-W01

John Crane® - Type 80

John Crane® - Type DF

Lidering® - Type 270

Roten® 7KS

The Vulcan Seals Type 1688 is a highly robust, 'O'-ring mounted single wave-spring "non-pusher" seal design, with a very narrow cross-section and compact working length.

The drive from the shaft and set of working lengths is by set screws to the shaft, providing bi-directional rotation capability. The single wave-spring provides even closing force to the sealing faces ensuring higher sealing performance and short working height compared to a single spring seal design.

The Vulcan Seals Type 1688 features a monolithic steelhead, optimised for abrasion resistance and high-temperature applications.

Vulcan Seals Type 1688 complete seal is supplied with the Vulcan Seals Type 1688 'O'-ring stationary to suit UK imperial housings commonly used in rotary lobe pumps.

Why Choose the Vulcan Seals Type 1688?

The design of the Vulcan Seals Type 1688 head ensures the 'O'-ring is supported by the set-screw fixed barrel, providing superior performance against service pressure variations and minimising shaft fretting.
The compact design and set-screw mounting of the Vulcan Seals Type 1688 allow installation in very short-length seal chambers.
The Vulcan Seals Type 1688 is highly suited to rotary lobe pumps due to the short installation length, reduced radial clearance, and design suited to slow shaft speed operation.
The one-piece sinusoidal wave spring provides superior strength and reliability compared to cut-section wave springs, which are not as robust.

Request a Quote

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Specifications

Standard Face Material Combinations

Rotary Face

Stationary Face

Complete Seal Code

304 Stainless Steel

VCP1 Carbon

Guaranteed stock elastomers: Viton^TM/FKM, EP and Nitrile
Guaranteed stock metallurgy: 304SSSpecify right hand clockwise or left hand anti-clockwise coil upon ordering
*Non-stock guarantee

‍

Standard Face Material Combinations

Guaranteed stock elastomers: Viton^TM/FKM, EP and Nitrile
Guaranteed stock metallurgy: 304SSSpecify right hand clockwise or left hand anti-clockwise coil upon ordering
*Non-stock guarantee

‍

Elastomer Temperature Capabilities

Minimum

Maximum

Nitrile

-30°C

+120°C

Pressure Capabilities

Pressure:

Up to 14 bar (203 psi)

Dimensional Data

Vulcan Seals Type 1688

Text Under the Dimensional Data table

DØ (Metric)	Size Code	D1	D4	DINS L1	DINL L2	DINL Slot Width	DINL Slot Depth
10	0100	21.00	16.42	6.60	10.00	4.00	5.00
12	0120	23.00	18.42	6.60	10.00	4.00	5.00
14	0140	25.00	20.42	6.60	10.00	4.00	5.00
16	0160	27.00	22.42	6.60	10.00	4.00	5.00
18	0180	33.00	26.6	7.50	11.50	4.00	5.50
20	0200	35.00	28.6	7.50	11.50	4.00	5.50
22	0220	37.00	30.6	7.50	11.50	4.00	5.50
24	0240	39.00	32.6	7.50	11.50	4.00	5.50
25	0250	40.00	33.6	7.50	11.50	4.00	5.50
28	0280	43.00	36.6	7.50	11.50	4.00	5.50
30	0300	45.00	38.6	7.50	11.50	4.00	5.50
32	0320	48.00	41.6	7.50	11.50	4.00	5.50
33	0330	48.00	41.6	7.50	11.50	4.00	5.50
35	0350	50.00	43.8	7.50	11.50	4.00	5.50
38	0380	56.00	48.8	9.00	14.00	5.00	5.50
40	0400	58.00	50.8	9.00	14.00	5.00	5.50
43	0430	61.00	53.8	9.00	14.00	5.00	5.50
45	0450	63.00	55.8	9.00	14.00	5.00	5.50
48	0480	66.00	58.8	9.00	14.00	5.00	5.50
50	0500	70.00	61.25	9.50	15.00	5.00	5.50
53	0530	73.00	64.25	11.00	15.00	5.00	5.50
55	0550	75.00	66.25	11.00	15.00	5.00	5.50
58	0580	78.00	69.25	11.00	15.00	5.00	5.50
60	0600	80.00	71.25	11.00	15.00	5.00	5.50
63	0630	83.00	74.25	11.00	15.00	5.00	5.50
65	0650	85.00	76.25	11.00	15.00	5.00	5.50
68	0680	90.00	80.5	11.30	18.00	5.00	5.50
70	0700	92.00	82.6	11.30	18.00	5.00	5.50
75	0750	97.00	87.6	11.30	18.00	5.00	5.50
80	0800	105.00	94.7	12.00	18.20	5.00	5.50
85	0850	110.00	99.7	14.00	18.20	5.00	5.50
90	0900	115.00	104.7	14.00	18.20	5.00	5.50
95	0950	120.00	109.7	14.00	17.20	5.00	5.50
100	1000	125.00	114.7	14.00	17.20	5.00	5.50

DØ (Imperial)	DØ (Metric)	Size Code	D3		L1		No of Set Screws
			in	mm	in	mm
0.375		0095	0.748	19.00	0.295	7.50	3 x 120°
	10	0100	0.748	19.00	0.295	7.50	3 x 120°
	12	0120	0.827	21.00	0.295	7.50	3 x 120°
0.5		0127	0.827	21.00	0.295	7.50	3 x 120°
	14	0140	0.906	23.00	0.295	7.50	3 x 120°
	15	0150	0.945	24.00	0.295	7.50	3 x 120°
0.625		0158	0.984	25.00	0.295	7.50	3 x 120°
	16	0160	0.984	25.00	0.295	7.50	3 x 120°
	18	0180	1.22	31.00	0.295	7.50	3 x 120°
0.75		0191	1.22	31.00	0.295	7.50	3 x 120°
	20	0200	1.299	33.00	0.295	7.50	3 x 120°
	22	0220	1.378	35.00	0.295	7.50	3 x 120°
0.875		0222	1.378	35.00	0.295	7.50	3 x 120°
	24	0240	1.457	37.00	0.295	7.50	3 x 120°
	25	0250	1.496	38.00	0.349	10.00	3 x 120°
1		0254	1.496	38.00	0.349	10.00	3 x 120°
	28	0280	1.614	41.00	0.349	10.00	3 x 120°
1.125		0286	1.614	41.00	0.349	10.00	3 x 120°
	30	0300	1.693	43.00	0.349	10.00	3 x 120°
1.25		0317	1.772	45.00	0.349	10.00	3 x 120°
	32	0320	1.772	45.00	0.394	10.00	3 x 120°
	33	0330	1.811	46.00	0.394	10.00	3 x 120°
1.375		0349	1.89	48.00	0.394	10.00	3 x 120°
	35	0350	1.89	48.00	0.394	10.00	3 x 120°
	38	0380	2.087	53.00	0.394	10.00	3 x 120°
1.5		0381	2.087	53.00	0.394	10.00	3 x 120°
	40	0400	2.165	55.00	0.394	10.00	3 x 120°
1.625		0412	2.165	55.00	0.394	10.00	3 x 120°
	43	0430	2.283	58.00	0.394	10.00	3 x 120°
1.75		0444	2.362	60.00	0.394	10.00	3 x 120°
	45	0450	2.362	60.00	0.394	10.00	3 x 120°
1.875		0476	2.48	63.00	0.394	10.00	3 x 120°

DØ (Imperial)	DØ (Metric)	Size Code	D3		L1		No of Set Screws
			in	mm	in	mm
	48	480	2.48	63.00	0.394	10.00	3 x 120°
	50	500	2.559	65.00	0.394	10.00	3 x 120°
2.000		508	2.559	65.00	0.394	10.00	3 x 120°
	53	530	2.677	68.00	0.394	10.00	3 x 120°
2.125		539	2.677	68.00	0.394	10.00	3 x 120°
	55	550	2.756	70.00	0.394	10.00	3 x 120°
2.250		571	2.756	70.00	0.394	10.00	3 x 120°
	58	580	3.031	77.00	0.394	10.00	3 x 120°
	60	600	3.11	79.00	0.394	10.00	3 x 120°
2.375		603	3.11	79.00	0.394	10.00	3 x 120°
2.500		635	3.228	82.00	0.394	10.00	3 x 120°
	65	650	3.307	84.00	0.472	12.00	3 x 120°
2.625		666	3.307	84.00	0.472	12.00	3 x 120°
	68	680	3.425	87.00	0.472	12.00	3 x 120°
2.750		698	3.504	89.00	0.472	12.00	3 x 120°
	70	700	3.504	89.00	0.472	12.00	3 x 120°
2.875		730	3.74	95.00	0.472	12.00	3 x 120°
	75	750	3.858	98.00	0.472	12.00	3 x 120°
3.000		762	3.858	98.00	0.472	12.00	3 x 120°
3.125		794	4.055	103.00	0.472	12.00	3 x 120°
	80	800	4.055	103.00	0.472	12.00	3 x 120°
3.250		825	4.055	103.00	0.472	12.00	3 x 120°
	85	850	4.252	108.00	0.472	12.00	3 x 120°
3.375		857	4.252	108.00	0.472	12.00	3 x 120°
3.500		889	4.449	113.00	0.472	12.00	3 x 120°
	90	900	4.449	113.00	0.472	12.00	3 x 120°
3.625*		921	4.449	113.00	0.472	12.00	3 x 120°
	95*	950	4.646	118.00	0.472	12.00	3 x 120°
3.750*		953	4.646	118.00	0.472	12.00	3 x 120°
3.875*		984	4.764	121.00	0.472	12.00	3 x 120°
	100*	1000	4.843	123.00	0.472	12.00	3 x 120°
4.000*		1016	4.843	123.00	0.59	15.00	3 x 120°

DØ (Metric)	Size Code	Type 8STD		Type 8B		Type 12		Type 12DIN		Type 13		Type 13DIN
		D1	L1	D1	L1	D1	L1	D1	L1	D1	L1
10	0100	19.20	6.60	19.20	7.10	18.10	5.50	21.00	7.00	18.10	5.50	21.00	7.00
11	0110	--	--	--	--	20.60	5.50	--	--	20.60	5.50	--	--
12	0120	21.60	5.60	21.60	7.60	20.60	5.50	23.00	7.00	20.60	5.50	23.00	7.00
13	0130	--	--	--	--	23.10	6.00	--	--	23.10	6.00	--	--
14	0140	24.60	5.60	24.60	7.60	23.10	6.00	25.00	7.00	23.10	6.00	25.00	7.00
15	0150	24.60	6.60	24.60	8.60	26.90	7.00	--	--	26.90	7.00	--	--
16	0160	28.00	7.50	28.00	9.00	26.90	7.00	27.00	7.00	26.90	7.00	27.00	7.00
17	0170	--	--	--	--	26.90	7.00	--	--	26.90	7.00	--	--
18	0180	30.00	8.00	30.00	10.00	30.90	8.00	33.00	10.00	30.90	8.00	33.00	10.00
19	0190	31.00	7.50	31.00	9.00	30.90	8.00	--	--	30.90	8.00	--	--
20	0200	35.00	7.50	35.00	9.50	30.90	8.00	35.00	10.00	30.90	8.00	35.00	10.00
21	0210	--	--	--	--	35.40	8.00	--	--	35.40	8.00	--	--
22	0220	35.00	7.50	35.00	9.50	35.40	8.00	37.00	10.00	35.40	8.00	37.00	10.00
23	0230	--	--	--	--	35.40	8.00	--	--	35.40	8.00	--	--
24	0240	38.00	7.50	38.00	9.50	35.40	8.00	39.00	10.00	35.40	8.00	39.00	10.00
25	0250	38.00	7.50	38.00	9.50	38.20	8.50	40.00	10.00	38.20	8.50	40.00	10.00
26	0260	40.00	8.00	40.00	10.00	38.20	8.50	--	--	--	--	--	--
28	0280	42.00	9.00	42.00	11.00	43.30	9.00	43.00	10.00	43.30	9.00	43.00	10.00
30	0300	45.00	10.50	45.00	11.00	43.30	9.00	45.00	10.00	43.30	9.00	45.00	10.00
32	0320	48.00	10.50	48.00	11.00	43.30	9.00	48.00	10.00	43.30	9.00	48.00	10.00
33	0330	50.00	11.00	--	--	53.50	11.50	48.00	10.00	53.50	9.00	48.00	10.00
35	0350	52.00	11.00	52.00	11.50	53.50	11.50	50.00	10.00	53.50	11.50	50.00	10.00
38	0380	55.00	10.30	55.00	11.50	60.50	11.50	56.00	13.00	60.50	11.50	56.00	13.00
40	0400	58.00	10.80	58.00	11.50	60.50	11.50	58.00	13.00	60.50	11.50	58.00	13.00
42	0420	62.00	12.00	62.00	14.30	60.50	11.50	--	--	--	--	--	--
43	0430	62.00	12.00	62.00	14.30	60.50	11.50	61.00	13.00	--	--	--	--
44	0440	--	--	--	--	65.50	11.50	--	--	--	--	--	--
45	0450	64.00	11.60	64.00	14.30	65.50	11.50	63.00	13.00	--	--	--	--
48	0480	68.40	11.60	68.40	14.30	65.50	11.50	66.00	13.00	--	--	--	--
50	0500	69.30	11.60	69.30	14.30	72.50	11.50	70.00	14.00	--	--	--	--
53	0530	--	--	--	--	--	--	73.00	14.00	--	--	--	--
55	0550	75.40	13.30	75.40	15.30	72.50	11.50	75.00	14.00	--	--	--	--
58	0580	78.40	13.30	78.40	15.30	--	--	78.00	14.00	--	--	--	--
60	0600	80.40	13.30	80.40	15.30	79.30	11.50	80.00	14.00	--	--	--	--
63	0630	--	--	--	--	--	--	83.00	14.00	--	--	--	--
65	0650	85.40	13.00	85.40	15.30	84.50	11.50	85.00	14.00	--	--	--	--
68	0680	91.50	13.70	91.50	16.00	--	--	90.00	16.00	--	--	--	--
70	0700	92.00	13.00	92.00	15.30	89.50	11.50	92.00	16.00	--	--	--	--
75	0750	99.00	14.00	99.00	15.30	94.50	11.50	97.00	16.00	--	--	--	--
80	0800	104.00	15.00	104.00	16.30	99.50	11.50	105.00	18.00	--	--	--	--
85	0850	109.00	14.80	--	--	105.50	13.50	110.00	18.00	--	--	--	--
90	0900	114.00	14.80	--	--	111.50	13.50	115.00	18.00	--	--	--	--
95	0950	120.30	15.80	--	--	116.50	13.50	120.00	18.00	--	--	--	--
100	1000	123.30	15.80	--	--	119.50	13.50	125.00	18.00	--	--	--	--

			Type 21				Type 31
DØ (Imperial)	DØ (Metric)	Size Code	D1		L1		D1		L1
			in	mm	in	mm	in	mm	in	mm
0.375	10	0095	0.969	24.60	0.344	8.74	0.812	20.62	0.312	7.93
	12	0120	1.094	27.79	0.344	8.74	--	--	--	--
0.500		0127	1.094	27.79	0.344	8.74	1	25.1	0.312	7.93
0.625	16	0158	1.219	30.95	0.406	10.32	1.25	31.75	0.405	10.28
	18*	0180	1.344	34.15	0.406	10.32	--	--	--	--
0.750	19	0191	1.344	34.15	0.406	10.32	1.375	34.93	0.405	10.28
	20*	0200	1.406	35.70	0.406	10.32	--	--	--	--
0.875	22	0222	1.469	37.30	0.406	10.32	1.5	38.1	0.406	10.32
1.000	25	0254	1.594	40.50	0.406	10.32	1.625	41.28	0.437	11.10
	28	0280	1.875	47.63	0.472	11.99	--	--	--	--
1.125		0286	1.875	47.63	0.472	11.99	1.75	44.44	0.437	11.10
	30*	0300	2.000	50.80	0.472	11.99	--	--	--	--
1.250	32	0317	2.000	50.80	0.472	11.99	1.875	47.63	0.437	11.10
	33*	0330	2.125	53.98	0.472	11.99	--	--	--	--
1.375	35	0349	2.125	53.98	0.472	11.99	2	50.8	0.437	11.1
1.500	38	0381	2.250	57.15	0.472	11.99	2.125	53.98	0.437	11.1
	40*	0400	2.375	60.33	0.472	11.99	--	--	--	--
1.625		0412	2.375	60.33	0.472	11.99	2.375	60.33	0.5	12.7
	43*	0430	2.500	63.50	0.472	11.99	--	--	--	--
1.750	45	0444	2.500	63.50	0.472	11.99	2.5	63.5	0.5	12.7
1.875	48	0476	2.625	66.68	0.472	11.99	2.625	66.68	0.5	12.7
	50	0500	2.750	69.85	0.531	13.50	--	--	--	--
2.000		0508	2.750	69.85	0.531	13.50	2.75	69.85	0.5	12.7
	53	0530	2.875	73.03	0.531	13.50	--	--	--	--
2.125		0539	2.875	73.03	0.531	13.50	3	76.2	0.562	14.28
	55*	0550	3.000	76.20	0.531	13.50	--	--	--	--
2.250		0571	3.000	76.20	0.531	13.50	3.125	79.38	0.562	14.28
2.375	60	0603	3.125	79.38	0.531	13.50	3.25	82.55	0.562	14.28
2.500		0635	3.250	82.55	0.531	13.50	3.375	85.73	0.562	14.28
	65*	0650	3.625	92.08	0.625	15.88	--	--	--	--
2.625		0666	3.625	92.08	0.625	15.88	3.375	85.73	0.625	15.88
2.750	70	0698	3.750	95.25	0.625	15.88	3.5	88.9	0.625	15.88
2.875		0730	3.875	98.43	0.625	15.88	3.75	95.25	0.625	15.88
	75*	0750	4.000	101.60	0.625	15.88	--	--	--	--
3.000		0762	4.000	101.60	0.625	15.88	3.875	98.43	0.625	15.88
3.125*	80*	0794	4.375	111.13	0.783	19.88	4	101.6	0.783	19.88
3.250*		0825	4.500	114.30	0.783	19.88	4.125	104.78	0.783	19.88
3.375*	85*	0857	4.625	117.48	0.783	19.88	4.25	107.95	0.783	19.88
3.500*	90*	0889	4.750	120.65	0.783	19.88	4.375	111.13	0.783	19.88
3.625*		0921	4.875	123.83	0.783	19.88	4.5	114.3	0.783	19.88
3.750*	95*	0953	5.000	127.00	0.783	19.88	4.625	117.48	0.783	19.88
3.875*		0984	5.125	130.17	0.783	19.88	--	--	--	--
	100*	1000	4.875	123.83	0.783	19.88	--	--	--	--
4.000*		1016	5.250	133.35	0.783	19.88	4.875	123.83	0.783	19.88

DØ (Imperial)	Size Code	D2		D3		L1		L2		Slot P.C.D.		O'-ring Size
DØ (Imperial)	Size Code	in	mm	in	mm	in	mm	in	mm	in	mm	O'-ring Size
0.500*	0127	0.543	13.80	0.996	25.30	0.311	7.90	0.098	2.50	0.780	19.80	BS214
0.625*	0158	0.669	16.98	1.246	31.65	0.406	10.30	0.098	2.50	0.953	24.20	BS218
0.750*	0191	0.793	20.15	1.371	34.82	0.406	10.30	0.098	2.50	1.093	27.75	BS220
0.875*	0222	0.919	23.33	1.496	38.00	0.406	10.30	0.098	2.50	1.220	31.00	BS222
1.000	0254	1.043	26.50	1.621	41.18	0.439	11.15	0.098	2.50	1.343	34.10	BS223
1.125	0286	1.184	30.08	1.746	44.35	0.439	11.15	0.098	2.50	1.469	37.30	BS224
1.250	0317	1.309	33.25	1.871	47.53	0.439	11.15	0.098	2.50	1.594	40.50	BS225
1.375	0349	1.434	36.43	1.996	50.70	0.439	11.15	0.098	2.50	1.717	43.60	BS226
1.500	0381	1.559	39.60	2.121	53.88	0.439	11.15	0.098	2.50	1.843	46.80	BS227
1.625	0412	1.684	42.78	2.371	60.23	0.502	12.75	0.118	3.00	2.031	51.60	BS229
1.750	0444	1.809	45.95	2.496	63.40	0.502	12.75	0.118	3.00	2.157	54.80	BS230
1.875	0476	1.934	49.13	2.621	66.58	0.502	12.75	0.118	3.00	2.280	57.90	BS231
2.000	0508	2.059	52.30	2.746	69.75	0.502	12.75	0.118	3.00	2.406	61.10	BS232
2.125	0539	2.184	55.48	2.996	76.10	0.564	14.33	0.138	3.50	2.594	65.90	BS234
2.250	0571	2.309	58.65	3.121	79.28	0.564	14.33	0.138	3.50	2.717	69.00	BS235
2.375	0603	2.434	61.83	3.246	82.45	0.564	14.33	0.138	3.50	2.843	72.20	BS236
2.500	0635	2.559	65.00	3.371	85.63	0.564	14.33	0.138	3.50	2.969	75.40	BS237
2.625	0666	2.684	68.18	3.371	85.63	0.627	15.93	0.138	3.50	3.031	77.00	BS237
2.750	0698	2.809	71.35	3.496	88.80	0.627	15.93	0.138	3.50	3.157	80.20	BS238
2.875	0730	2.934	74.53	3.746	95.15	0.627	15.93	0.138	3.50	3.343	84.90	BS240
3.000	0762	3.059	77.70	3.871	98.33	0.627	15.93	0.138	3.50	3.469	88.10	BS241
3.125*	0794	3.225	81.92	3.996	101.50	0.781	19.84	0.138	3.50	3.594	91.30	BS242
3.250*	0825	3.350	85.10	4.121	104.68	0.781	19.84	0.138	3.50	3.717	94.40	BS243
3.375*	0857	3.475	88.27	4.246	107.85	0.781	19.84	0.138	3.50	3.843	97.60	BS244
3.500*	0889	3.600	91.44	4.371	111.03	0.781	19.84	0.138	3.50	3.969	100.80	BS245
3.625*	0921	3.725	94.62	4.496	114.20	0.781	19.84	0.138	3.50	4.094	104.00	BS246
3.750*	0953	3.850	97.79	4.621	117.38	0.781	19.84	0.138	3.50	4.217	107.10	BS247
3.875*	0984	3.975	100.97	4.746	120.55	0.781	19.84	0.138	3.50	4.343	110.30	BS248
4.000*	1016	4.100	104.14	4.871	123.73	0.781	19.84	0.138	3.50	4.469	113.50	BS249

DØ (Imperial)	Size Code	D1		D2		L1		L2		PIN PCD		PIN Ø
DØ (Imperial)	Size Code	in	mm	in	mm	in	mm	in	mm	in	mm	in	mm
0.500*	0127	1.000	25.40	0.543	13.80	0.313	7.95	0.112	2.85	0.687	17.46	0.0790	2.00
0.625	0158	1.250	31.75	0.669	16.98	0.405	10.28	0.157	4.00	0.813	20.64	0.0790	2.00
0.750*	0191	1.375	34.93	0.792	20.12	0.405	10.28	0.157	4.00	0.937	23.81	0.0790	2.00
0.875	0222	1.500	38.10	0.919	23.33	0.405	10.28	0.157	4.00	1.063	26.99	0.0790	2.00
1.000	0254	1.625	41.28	1.043	26.50	0.437	11.10	0.161	4.10	1.187	30.15	0.0790	2.00
1.125	0286	1.750	44.44	1.184	30.08	0.437	11.10	0.161	4.10	1.313	33.35	0.0790	2.00
1.250	0317	1.875	47.63	1.309	33.25	0.437	11.10	0.161	4.10	1.437	36.50	0.0790	2.00
1.375	0349	2.000	50.80	1.435	36.45	0.437	11.10	0.161	4.10	1.563	39.70	0.0790	2.00
1.500	0381	2.125	53.98	1.559	39.60	0.437	11.10	0.161	4.10	1.687	42.85	0.0790	2.00
1.625	0412	2.375	60.33	1.684	42.78	0.500	12.70	0.165	4.20	1.875	47.63	0.1180	3.00
1.750	0444	2.500	63.50	1.809	45.95	0.500	12.70	0.165	4.20	2.000	50.80	0.1180	3.00
1.875	0476	2.625	66.68	1.934	49.13	0.500	12.70	0.165	4.20	2.125	53.98	0.1180	3.00
2.000	0508	2.750	69.85	2.059	52.30	0.500	12.70	0.165	4.20	2.250	57.15	0.1180	3.00
2.125	0539	3.000	76.20	2.184	55.48	0.562	14.28	0.177	4.50	2.375	60.33	0.1180	3.00
2.250	0571	3.125	79.38	2.309	58.65	0.562	14.28	0.177	4.50	2.500	63.50	0.1180	3.00
2.375	0603	3.250	82.55	2.438	61.93	0.562	14.28	0.177	4.50	2.625	66.68	0.1180	3.00
2.500	0635	3.375	85.73	2.559	65.00	0.562	14.28	0.177	4.50	2.750	69.85	0.1180	3.00
2.625	0666	3.375	85.73	2.684	68.18	0.625	15.88	0.173	4.40	2.875	73.03	0.1180	3.00
2.750*	0698	3.500	88.90	2.809	71.35	0.625	15.88	0.173	4.40	3.000	76.20	0.1180	3.00
2.875	0730	3.750	95.25	2.934	74.53	0.625	15.88	0.173	4.40	3.125	79.38	0.1180	3.00
3.000	0762	3.875	98.43	3.059	77.70	0.625	15.88	0.173	4.40	3.250	82.55	0.1180	3.00
3.125	0794	4.000	101.60	3.225	81.92	0.783	19.88	0.177	4.50	3.376	85.75	0.1180	3.00
3.250	0825	4.125	104.78	3.350	85.09	0.783	19.88	0.177	4.50	3.500	88.90	0.1180	3.00
3.375	0857	4.250	107.95	3.475	88.27	0.783	19.88	0.177	4.50	3.624	92.05	0.1180	3.00
3.500	0889	4.375	111.13	3.600	91.44	0.783	19.88	0.177	4.50	3.750	95.25	0.1180	3.00
3.625	0921	4.500	114.30	3.725	94.62	0.783	19.88	0.177	4.50	3.874	98.40	0.1180	3.00
3.750	0953	4.625	117.48	3.850	97.79	0.783	19.88	0.177	4.50	4.000	101.60	0.1180	3.00
3.875	0984	4.750	120.65	3.975	100.97	0.783	19.88	0.177	4.50	4.125	104.78	0.1180	3.00
4.000	1016	4.875	123.83	4.100	104.14	0.783	19.88	0.177	4.50	4.250	107.95	0.1180	3.00

DØ (Imperial)	DØ (Metric)	Size Code	Type 11				Type 20				Type 19B		Type 24
			D1		L1		D1		L1		D1	L1	D1	L1
			in	mm	in	mm	in	mm	in	mm	D1	L1	D1	L1
0.375		0095	0.875	22.23	0.312	7.93	0.969	24.6	0.344	8.74	--	--	--	--
	10	0100	0.875	22.23	0.312	7.93	0.969	24.6	0.344	8.74	21.00	6.60	21.00	8.60
	12	0120	1.000	25.40	0.312	7.93	1.094	27.79	0.344	8.74	23.00	6.60	23.00	8.60
0.500		0127	1.000	25.40	0.312	7.93	1.094	27.79	0.344	8.74	--	--	--	--
	13	0130	1.000	25.40	0.312	7.93	1.094	27.79	0.344	8.74	--	--	--	--
	14	0140	1.250	31.75	0.405	10.28	1.219	30.95	0.406	10.32	25.00	6.60	25.00	8.60
	15	0150	--	--	--	--	1.219	30.95	0.406	10.32	27.00	6.60	27.00	8.60
0.625		0158	1.250	31.75	0.405	10.28	1.219	30.95	0.406	10.32	--	--	--	--
	16	0160	1.250	31.75	0.405	10.28	1.219	30.95	0.406	10.32	27.00	6.60	27.00	8.60
	18	0180	1.375	34.93	0.405	10.28	1.344	34.15	0.406	10.32	33.00	7.50	33.00	10.00
0.750		0191	1.375	34.93	0.405	10.28	1.344	34.15	0.406	10.32	--	--	--	--
	20	0200	1.500	38.10	0.405	10.28	1.406	35.7	0.406	10.32	35.00	7.50	35.00	10.00
	22	0220	1.500	38.10	0.405	10.28	1.469	37.3	0.406	10.32	37.00	7.50	37.00	10.00
0.875		0222	1.500	38.10	0.405	10.28	1.469	37.3	0.406	10.32	--	--	--	--
	24	0240	1.625	41.28	0.437	11.10	1.594	40.5	0.406	10.32	39.00	7.50	39.00	10.00
	25	0250	1.625	41.28	0.437	11.10	1.594	40.5	0.406	10.32	40.00	7.50	40.00	10.00
1		0254	1.625	41.28	0.437	11.10	1.594	40.5	0.406	10.32	--	--	--	--
	28	0280	1.750	44.44	0.437	11.10	1.875	47.63	0.472	11.99	43.00	7.50	43.00	10.00
1.125		0286	1.750	44.44	0.437	11.10	1.875	47.63	0.472	11.99	--	--	--	--
	30	0300	1.875	47.63	0.437	11.10	2	50.8	0.472	11.99	45.00	7.50	45.00	10.00
1.250		0317	1.875	47.63	0.437	11.10	2	50.8	0.472	11.99	--	--	--	--
	32	0320	1.875	47.63	0.437	11.10	2	50.8	0.472	11.99	48.00	7.50	48.00	10.00
	33	0330	2.000	50.80	0.437	11.10	2.125	53.98	0.472	11.99	48.00	7.50	48.00	10.00
1.375	35	0350	2.000	50.80	0.437	11.10	2.125	53.98	0.472	11.99	50.00	7.50	50.00	10.00
1.500	38	0380	2.125	53.98	0.437	11.10	2.25	57.15	0.472	11.99	56.00	9.00	56.00	11.00
	40	0400	2.375	60.33	0.500	12.70	2.375	60.33	0.472	11.99	58.00	9.00	58.00	11.00
1.625		0412	2.375	60.33	0.500	12.70	2.375	60.33	0.472	11.99	--	--	--	--
	43	0430	2.500	63.50	0.500	12.70	2.5	63.5	0.472	11.99	61.00	9.00	61.00	11.00
1.750		0444	2.500	63.50	0.500	12.70	2.5	63.5	0.472	11.99	--	--	--	--
	45	0450	2.625	66.68	0.500	12.70	2.5	63.5	0.472	11.99	63.00	9.00	63.00	11.00
1.875		0476	2.625	66.68	0.500	12.70	2.625	66.68	0.472	11.99	--	--	--	--
	48	0480	2.750	69.85	0.500	12.70	2.625	66.68	0.472	11.99	66.00	9.00	66.00	11.00
	50	0500	2.750	69.85	0.500	12.70	2.75	69.85	0.531	13.5	70.00	9.50	70.00	13.00
2		0508	2.750	69.85	0.500	12.70	2.75	69.85	0.531	13.5	--	--	--	--
	53	0530	3.000	76.20	0.562	14.28	2.875	73.03	0.531	13.5	73.00	11.00	73.00	13.00
2.125		0539	3.000	76.20	0.562	14.28	2.875	73.03	0.531	13.5	--	--	--	--
	55	0550	3.125	79.38	0.562	14.28	3	76.2	0.531	13.5	75.00	11.00	75.00	13.00
2.250		0571	3.125	79.38	0.562	14.28	3	76.2	0.531	13.5	--	--	--	--
	58	0580	3.250	82.55	0.562	14.28	3.125	79.38	0.531	13.5	78.00	11.00	78.00	13.00
	60	0600	3.250	82.55	0.562	14.28	3.125	79.38	0.531	13.5	80.00	11.00	80.00	13.00
2.375		0603	3.250	82.55	0.562	14.28	3.125	79.38	0.531	13.5	--	--	--	--
	63	0630	3.375	85.73	0.562	14.28	3.25	82.55	0.531	13.5	--	--	83.00	13.00
2.5		0635	3.375	85.73	0.562	14.28	3.25	82.55	0.531	13.5	--	--	--	--
	65	0650	3.375	85.73	0.625	15.88	3.625	92.08	0.625	15.88	85.00	11.00	85.00	13.00
2.625		666	3.375	85.73	0.625	15.88	3.625	92.08	0.625	15.88	--	--	--	--
2.750		698	3.500	88.90	0.625	15.88	3.75	95.25	0.625	15.88	--	--	--	--
	70	700	3.500	88.90	0.625	15.88	3.75	95.25	0.625	15.88	92.00	11.30	92.00	15.30
2.875		730	3.750	95.25	0.625	15.88	3.875	98.43	0.625	15.88	--	--	--	--
	75	750	3.875	98.43	0.625	15.88	4	101.6	0.625	15.88	97.00	11.30	97.00	15.30
3.000		762	3.875	98.43	0.625	15.88	4	101.6	0.625	15.88	--	--	--	--
3.125		794	4.000	101.60	0.783	19.88	4.375	111.13	0.783	19.88	--	--	--	--
	80	800	--	--	--	--	4.5	114.3	0.783	19.88	105.00	12.00	105.00	15.70
3.250		825	4.125	104.78	0.783	19.88	4.5	114.3	0.783	19.88	--	--	--	--
	85	850	--	--	--	--	4.625	117.48	0.783	19.88	110.00	14.00	110.00	15.70
3.375		857	4.250	107.95	0.783	19.88	4.625	117.48	0.783	19.88	--	--	--	--
3.500		889	4.375	111.13	0.783	19.88	4.75	120.65	0.783	19.88	--	--	--	--
	90	900	--	--	--	--	4.875	123.83	0.783	19.88	115.00	14.00	115.00	15.70
3.625		921	4.500	114.30	0.783	19.88	4.875	123.83	0.783	19.88	--	--	--	--
	95	950	--	--	--	--	5	127	0.783	19.88	120.00	14.00	120.00	15.70
3.750		953	4.625	117.48	0.783	19.88	5	127	0.783	19.88	--	--	--	--
3.875		984	4.750	120.65	0.783	19.88	5.125	130.17	0.783	19.88	--	--	--	--
	100	1000	--	--	--	--	5.25	133.35	0.783	19.88	125.00	14.00	125.00	15.70
4.000		1016	4.875	123.83	0.783	19.88	5.25	133.35	0.783	19.88	--	--	--	--

DØ (Metric)	Size Code	D1	D4	DINS / DINL L1	DINL Slot Width	DINL Slot Depth
10	0100	21.00	16.42	8.60	4.00	5.00
12	0120	23.00	18.42	8.60	4.00	5.00
14	0140	25.00	20.42	8.60	4.00	5.00
16	0160	27.00	22.42	8.60	4.00	5.00
18	0180	33.00	26.6	10.00	4.00	5.50
20	0200	35.00	28.6	10.00	4.00	5.50
22	0220	37.00	30.6	10.00	4.00	5.50
24	0240	39.00	32.6	10.00	4.00	5.50
25	0250	40.00	33.6	10.00	4.00	5.50
28	0280	43.00	36.6	10.00	4.00	5.50
30	0300	45.00	38.6	10.00	4.00	5.50
32	0320	48.00	41.6	10.00	4.00	5.50
33	0330	48.00	41.6	10.00	4.00	5.50
35	0350	50.00	43.8	10.00	4.00	5.50
38	0380	56.00	48.8	11.00	5.00	5.50
40	0400	58.00	50.8	11.00	5.00	5.50
43	0430	61.00	53.8	11.00	5.00	5.50
45	0450	63.00	55.8	11.00	5.00	5.50
48	0480	66.00	58.8	11.00	5.00	5.50
50	0500	70.00	61.25	13.00	5.00	5.50
53	0530	73.00	64.25	13.00	5.00	5.50
55	0550	75.00	66.25	13.00	5.00	5.50
58	0580	78.00	69.25	13.00	5.00	5.50
60	0600	80.00	71.25	13.00	5.00	5.50
63	0630	83.00	74.25	13.00	5.00	5.50
65	0650	85.00	76.25	13.00	5.00	5.50
68	0680	90.00	80.5	15.30	5.00	5.50
70	0700	92.00	82.6	15.30	5.00	5.50
75	0750	97.00	87.6	15.30	5.00	5.50
80	0800	105.00	94.7	15.70	5.00	5.50
85	0850	110.00	99.7	15.70	5.00	5.50
90	0900	115.00	104.7	15.70	5.00	5.50
95	0950	120.00	109.7	15.70	5.00	5.50
100	1000	125.00	114.7	15.70	5.00	5.50

DØ (Imperial)	DØ (Metric)	Size Code	D1		D2		D3		L1		L2
DØ (Imperial)	DØ (Metric)	Size Code	in	mm	in	mm	in	mm	in	mm	in	mm
0.500	12	0127	1.144	29.05	0.539	13.70	1.563	39.70	0.685	17.40	0.311	7.90
	15	0150	1.256	31.90	0.630	16.00	1.614	41.00	0.685	17.40	0.311	7.90
0.625	16	0158	1.301	33.04	0.661	16.80	1.720	43.69	0.685	17.40	0.311	7.90
0.750	19	0191	1.426	36.21	0.787	20.00	1.831	46.50	0.685	17.40	0.311	7.90
	20	0200	1.453	36.90	0.827	21.00	1.850	47.00	0.685	17.40	0.311	7.90
0.875	22	0222	1.551	39.39	0.913	23.20	1.949	49.50	0.685	17.40	0.311	7.90
	25	0250	1.650	41.90	1.024	26.00	2.047	52.00	0.685	17.40	0.311	7.90
1.000		0254	1.676	42.56	1.039	26.40	2.067	52.50	0.685	17.40	0.311	7.90
1.125	28	0286	1.801	45.74	1.165	29.60	2.303	58.50	1.059	26.90	0.437	11.10
	30	0300	1.917	48.69	1.220	31.00	2.313	58.75	1.059	26.90	0.437	11.10
1.250		0317	1.988	50.50	1.287	32.70	2.500	63.50	1.059	26.90	0.437	11.10
	33*	0330	2.059	52.30	1.339	34.00	2.559	65.00	1.059	26.90	0.437	11.10
1.375	35	0349	2.113	53.68	1.417	36.00	2.579	65.50	1.059	26.90	0.437	11.10
1.500	38	0381	2.238	56.85	1.539	39.10	2.736	69.50	1.059	26.90	0.437	11.10
	40	0400	2.437	61.90	1.614	41.00	2.953	75.00	1.059	26.90	0.437	11.10
1.625		0412	2.488	63.20	1.661	42.20	3.012	76.50	1.059	26.90	0.437	11.10
1.750		0444	2.630	66.38	1.787	45.40	3.130	79.50	1.059	26.90	0.437	11.10
	45	0450	2.634	66.90	1.811	46.00	3.150	80.00	1.059	26.90	0.437	11.10
1.875	48	0476	2.738	69.55	1.929	49.00	3.248	82.50	1.059	26.90	0.437	11.10
	50	0500	2.831	71.90	2.008	51.00	3.346	85.00	1.059	26.90	0.437	11.10
2.000		0508	2.863	72.73	2.039	51.80	3.366	85.50	1.059	26.90	0.437	11.10
2.125		0539	3.113	79.08	2.161	54.90	3.760	95.50	1.312	33.33	0.563	14.30
	55*	0550	3.146	79.90	2.205	56.00	3.780	96.00	1.312	33.33	0.563	14.30
2.250		0571	3.238	82.25	2.287	58.10	3.878	98.50	1.312	33.33	0.563	14.30
	60	0600	3.343	84.90	2.402	61.00	3.976	101.00	1.312	33.33	0.563	14.30
2.375		0603	3363.000	85.43	2.413	61.30	3.996	101.50	1.312	33.33	0.563	14.30
2.500		0635	3.488	88.60	2.539	64.50	4.114	104.50	1.312	33.33	0.563	14.30
	65*	0650	3.539	89.90	2.598	66.00	4.173	106.00	1.312	33.33	0.563	14.30
2.625		0666	3.613	91.78	2.661	67.60	4.272	108.50	1.312	33.33	0.563	14.30
2.750	70	0698	3.736	94.90	2.795	71.00	4.370	111.00	1.312	33.33	0.563	14.30
2.875		0730	3.863	98.13	2.913	74.00	4.508	114.50	1.312	33.33	0.563	14.30
	75*	0750	3.933	99.90	2.992	76.00	4.567	116.00	1.312	33.33	0.563	14.30
3.000		0762	3.926	99.71	3.039	77.20	5.547	115.50	1.312	33.33	0.563	14.30
3.125*		0794	4.051	102.89	3.165	80.40	4.705	119.50	1.312	33.33	0.563	14.30
	80*	0800	4.130	104.90	3.189	81.00	4.764	121.00	1.312	33.33	0.563	14.30
3.250*		0825	4.232	107.50	3.295	83.70	4.862	123.50	1.350	34.30	0.563	14.30
	85*	0850	4.327	109.90	3.386	86.00	4.961	126.00	1.350	34.30	0.563	14.30
3.375*		0857	4.364	110.85	3.421	86.90	5.020	127.50	1.350	34.30	0.563	14.30
3.500*		0889	4.488	114.00	3.539	89.90	5.138	130.50	1.350	34.30	0.563	14.30
	90*	0900	4.508	114.50	3.583	91.00	5.138	130.50	1.350	34.30	0.563	14.30
3.625*		0921	4.610	117.10	3.673	93.30	5.256	133.50	1.350	34.30	0.563	14.30
	95*	0950	4.720	119.90	3.780	96.00	5.354	136.00	1.350	34.30	0.563	14.30
3.750*		0953	4.738	120.35	3.791	96.30	5.374	136.50	1.350	34.30	0.563	14.30
	100*	1000	4.917	124.90	3.976	101.00	5.551	141.00	1.350	34.30	0.563	14.30
4.000*		1016	4.988	126.70	4.039	102.60	5.610	142.50	1.350	34.30	0.563	14.30
4.250*		1079	5.238	133.05	4.291	109.00	5.886	149.50	1.350	34.30	0.563	14.30
4.500*		1143	5.488	139.40	4.539	115.30	6.122	155.50	1.350	34.30	0.563	14.30
5.000*		1270	6.488	164.80	5.039	128.00	7.382	187.50	1.417	36.00	0.630	16.00
5.500*		1397	6.988	177.50	5.539	140.70	7.894	200.50	1.417	36.00	0.630	16.00

This is some text inside of a div block.

Equivalent Products

Vulcan Seals Type 1688 is a dimensional replacement mechanical seal for the following seal ranges:

AES® | Type N-W01*
John Crane® | Type 80*
John Crane® | Type DF**
Lidering® | Type 270*
Roten® | Roten® 7KS*

*Rotary Face | **Stationary Face

Suitable Applications

Pump Ranges

Resources

Product Data Sheet

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Phone : +44 (0) 114 249 3333

Email : contact@vulcanseals.com

Vulcan Seals Type 1688

Technical Data Sheet

Product Description

The Vulcan Seals Type 1688 is a highly robust, 'O'-ring mounted single wave-spring "non-pusher" seal design, with a very narrow cross-section and compact working length.

The Vulcan Seals Type 1688 features a monolithic steelhead, optimised for abrasion resistance and high-temperature applications.

Vulcan Seals Type 1688 complete seal is supplied with the Vulcan Seals Type 1688 'O'-ring stationary to suit UK imperial housings commonly used in rotary lobe pumps.

Operating Limits

Why Choose the Vulcan Seals Type 1688?

The design of the Vulcan Seals Type 1688 head ensures the 'O'-ring is supported by the set-screw fixed barrel, providing superior performance against service pressure variations and minimising shaft fretting.
The compact design and set-screw mounting of the Vulcan Seals Type 1688 allow installation in very short-length seal chambers.
The Vulcan Seals Type 1688 is highly suited to rotary lobe pumps due to the short installation length, reduced radial clearance, and design suited to slow shaft speed operation.
The one-piece sinusoidal wave spring provides superior strength and reliability compared to cut-section wave springs, which are not as robust.

Suitable Applications

Gland Packing Replacement Range

Vulcan Seals Type 1688 is a dimensional replacement mechanical seal for the following seal ranges:

AES® | Type N-W01*
John Crane® | Type 80*
John Crane® | Type DF**
Lidering® | Type 270*
Roten® | Roten® 7KS*

*Rotary Face | **Stationary Face

® TM All product names, brands and trademarks shown are property of their respective owners, are for identification purposes only, and do not imply affiliation nor endorsement.**All information supplied within, has been given in good faith and in Vulcan Seals' best judgement. It is meant for guidance purposes only. Vulcan Seals reserves the right to amend all statements, dimensions and technical datawithout prior notice.

Phone : +44 (0) 114 249 3333

Email : contact@vulcanseals.com

Vulcan Seals Type 1688

Technical Data Sheet

Product Description

The Vulcan Seals Type 1688 is a highly robust, 'O'-ring mounted single wave-spring "non-pusher" seal design, with a very narrow cross-section and compact working length.

The Vulcan Seals Type 1688 features a monolithic steelhead, optimised for abrasion resistance and high-temperature applications.

Vulcan Seals Type 1688 complete seal is supplied with the Vulcan Seals Type 1688 'O'-ring stationary to suit UK imperial housings commonly used in rotary lobe pumps.

Why Choose the Vulcan Seals Type 1688?

The design of the Vulcan Seals Type 1688 head ensures the 'O'-ring is supported by the set-screw fixed barrel, providing superior performance against service pressure variations and minimising shaft fretting.
The compact design and set-screw mounting of the Vulcan Seals Type 1688 allow installation in very short-length seal chambers.
The Vulcan Seals Type 1688 is highly suited to rotary lobe pumps due to the short installation length, reduced radial clearance, and design suited to slow shaft speed operation.
The one-piece sinusoidal wave spring provides superior strength and reliability compared to cut-section wave springs, which are not as robust.

Pump Ranges

Standard Face Material Combinations

Vulcan Seals Type 1688 is a dimensional replacement mechanical seal for the following seal ranges:

AES® | Type N-W01*
John Crane® | Type 80*
John Crane® | Type DF**
Lidering® | Type 270*
Roten® | Roten® 7KS*

*Rotary Face | **Stationary Face

Dimensional Data

Text Under the Dimensional Data table

Phone : +44 (0) 114 249 3333

Email : contact@vulcanseals.com

Vulcan Seals Type 1688

Technical Data Sheet

Product Description

The Vulcan Seals Type 1688 is a highly robust, 'O'-ring mounted single wave-spring "non-pusher" seal design, with a very narrow cross-section and compact working length.

The Vulcan Seals Type 1688 features a monolithic steelhead, optimised for abrasion resistance and high-temperature applications.

Vulcan Seals Type 1688 complete seal is supplied with the Vulcan Seals Type 1688 'O'-ring stationary to suit UK imperial housings commonly used in rotary lobe pumps.

Why Choose the Vulcan Seals Type 1688?

The design of the Vulcan Seals Type 1688 head ensures the 'O'-ring is supported by the set-screw fixed barrel, providing superior performance against service pressure variations and minimising shaft fretting.
The compact design and set-screw mounting of the Vulcan Seals Type 1688 allow installation in very short-length seal chambers.
The Vulcan Seals Type 1688 is highly suited to rotary lobe pumps due to the short installation length, reduced radial clearance, and design suited to slow shaft speed operation.
The one-piece sinusoidal wave spring provides superior strength and reliability compared to cut-section wave springs, which are not as robust.

Mechanical Seal Replacement Range

Vulcan Seals Type 1688 is a dimensional replacement mechanical seal for the following seal ranges:

AES® | Type N-W01*
John Crane® | Type 80*
John Crane® | Type DF**
Lidering® | Type 270*
Roten® | Roten® 7KS*

*Rotary Face | **Stationary Face

Dimensional Data

			Type 21				Type 31
DØ (Imperial)	DØ (Metric)	Size Code	D1		L1		D1		L1
			in	mm	in	mm	in	mm	in	mm
0.375	10	0095	0.969	24.60	0.344	8.74	0.812	20.62	0.312	7.93
	12	0120	1.094	27.79	0.344	8.74	--	--	--	--
0.500		0127	1.094	27.79	0.344	8.74	1	25.1	0.312	7.93
0.625	16	0158	1.219	30.95	0.406	10.32	1.25	31.75	0.405	10.28
	18*	0180	1.344	34.15	0.406	10.32	--	--	--	--
0.750	19	0191	1.344	34.15	0.406	10.32	1.375	34.93	0.405	10.28
	20*	0200	1.406	35.70	0.406	10.32	--	--	--	--
0.875	22	0222	1.469	37.30	0.406	10.32	1.5	38.1	0.406	10.32
1.000	25	0254	1.594	40.50	0.406	10.32	1.625	41.28	0.437	11.10
	28	0280	1.875	47.63	0.472	11.99	--	--	--	--
1.125		0286	1.875	47.63	0.472	11.99	1.75	44.44	0.437	11.10
	30*	0300	2.000	50.80	0.472	11.99	--	--	--	--
1.250	32	0317	2.000	50.80	0.472	11.99	1.875	47.63	0.437	11.10
	33*	0330	2.125	53.98	0.472	11.99	--	--	--	--
1.375	35	0349	2.125	53.98	0.472	11.99	2	50.8	0.437	11.1
1.500	38	0381	2.250	57.15	0.472	11.99	2.125	53.98	0.437	11.1
	40*	0400	2.375	60.33	0.472	11.99	--	--	--	--
1.625		0412	2.375	60.33	0.472	11.99	2.375	60.33	0.5	12.7
	43*	0430	2.500	63.50	0.472	11.99	--	--	--	--
1.750	45	0444	2.500	63.50	0.472	11.99	2.5	63.5	0.5	12.7
1.875	48	0476	2.625	66.68	0.472	11.99	2.625	66.68	0.5	12.7
	50	0500	2.750	69.85	0.531	13.50	--	--	--	--
2.000		0508	2.750	69.85	0.531	13.50	2.75	69.85	0.5	12.7
	53	0530	2.875	73.03	0.531	13.50	--	--	--	--
2.125		0539	2.875	73.03	0.531	13.50	3	76.2	0.562	14.28
	55*	0550	3.000	76.20	0.531	13.50	--	--	--	--
2.250		0571	3.000	76.20	0.531	13.50	3.125	79.38	0.562	14.28
2.375	60	0603	3.125	79.38	0.531	13.50	3.25	82.55	0.562	14.28
2.500		0635	3.250	82.55	0.531	13.50	3.375	85.73	0.562	14.28
	65*	0650	3.625	92.08	0.625	15.88	--	--	--	--
2.625		0666	3.625	92.08	0.625	15.88	3.375	85.73	0.625	15.88
2.750	70	0698	3.750	95.25	0.625	15.88	3.5	88.9	0.625	15.88
2.875		0730	3.875	98.43	0.625	15.88	3.75	95.25	0.625	15.88
	75*	0750	4.000	101.60	0.625	15.88	--	--	--	--
3.000		0762	4.000	101.60	0.625	15.88	3.875	98.43	0.625	15.88
3.125*	80*	0794	4.375	111.13	0.783	19.88	4	101.6	0.783	19.88
3.250*		0825	4.500	114.30	0.783	19.88	4.125	104.78	0.783	19.88
3.375*	85*	0857	4.625	117.48	0.783	19.88	4.25	107.95	0.783	19.88
3.500*	90*	0889	4.750	120.65	0.783	19.88	4.375	111.13	0.783	19.88
3.625*		0921	4.875	123.83	0.783	19.88	4.5	114.3	0.783	19.88
3.750*	95*	0953	5.000	127.00	0.783	19.88	4.625	117.48	0.783	19.88
3.875*		0984	5.125	130.17	0.783	19.88	--	--	--	--
	100*	1000	4.875	123.83	0.783	19.88	--	--	--	--
4.000*		1016	5.250	133.35	0.783	19.88	4.875	123.83	0.783	19.88