Mechanical Seals: American Coding System
Vulcan Mechanical Seals USA

 

Vulcan Mechanical Seals - American Coding System

While Vulcan operates its own global Mechanical Seal coding system, we also incorporate common American coding systems for all standard American Mechanical Seals to ensure we maintain simplicity of business.

For order enquiries, simply advise of your requirements using common American part and material codes.

Our seal numbers follow the standard “PS” American coding system format, as is common in the North American market, except a "VS" prefix is used instead (e.g. VS185 = PS185).

Please use the document downloads, tables and diagrams on this page for guidance.

Browse by manufacturer here.
Browse by PS seal number here.

Full details are within our American Mechanical Seals Brochure - download here (13 MB).

To obtain a free hard copy of the brochure, please contact us here or use the enquiry form on this page.

 

American Mechanical Seal Material Codes

Elastomers Primary Ring Metal Parts Mating Ring Springs
B. Buna (Nitrile) A. Bronze D. Brass A. Bronze F. Stainless Steel
N. Neoprene C. Carbon E. Monel® G. Cast Iron E. Monel®
Q. EPR H. Glass Filled P.T.F.E F. Stainless Steel J. Ceramic P. Plated Steel
T. P.T.F.E L. Silicon Carbide P. Plated Steel K. Ni-Resist
V. Viton® M. Molded Plastic L. Silicon Carbide
X. Aflas® R. Silicon Carbide (CVR) O. Stellite®
Y. Kalrez® S. Tooled Steel S. Tooled Steel
Z. Tungsten Carbide Z. Tungsten Carbide
 

OEM Replacement Mechanical Seals

Vulcan also manufactures and supplies an extensively comprehensive range of OEM replacement Mechanical Seals.

For more details, please visit our OEM Replacement Seals page

Below are only a few of the key OEM companies in the North American market that we supply high quality replacement Mechanical Seals for.

  • A.B.S.®
  • Alfa Laval®
  • Bell & Gossett®
  • Ebara®
  • Fairbanks Morse®
  • Flowserve®
  • Flygt®
  • Fristam®
  • Gorman-Rupp®
  • Goulds Pumps®
  • Grundfos®
  • K.S.B.®
  • Lowara®
  • Peerless Pump®
  • Taco®
  • Paco®

 

Standard Mechanical Seal Head Types

 

Head Style A
Type 65

Equivalent:
US Seal® Type A
Pac Seal® Type 16
John Crane® Type 6
Apex® Type 6

Head Style B
Type 75

Equivalent:
US Seal® Type B
Pac Seal® Type 68
John Crane® Type 6A
Apex® Type 6A

Head Style C - Inserted Face
Type U11

Equivalent:
US Seal® Type C
John Crane® Type 21
Apex® Type A21

Head Style C - Crimped Face
Type N11

Equivalent:
US Seal® Type E
Pac Seal® Type 51
John Crane® USA Type 1
Apex® Type A1

Head Style D
Type A4

Equivalent:
US Seal® Type D
John Crane® USA Type 2
Apex® Type A2

Head Style E
Type A5

Equivalent:
US Seal® Type E
Pac Seal® Type 51
John Crane® USA Type 1
Apex® Type A1

Head Style G
Type 14 / 15 / 19

Equivalent:
US Seal® Type G
John Crane® Type 2100
Burgmann® Type MG1

Head Style H
Type 18

Equivalent:
US Seal® Type VGMA
Pac Seal® Type 17 or 118

Head Style I
Type 1724

Equivalent:
US Seal® Type I
John Crane® Type 502
Pac Seal® Type 250

Head Style J
Type 8

Equivalent:
US Seal® Type VGME-2 / VGME-3
Pac Seal® Type 37
Burgmann® Type M32N

Head Style K
Type 112

Equivalent:
US Seal® Type K
John Crane® Type 21 Double
Pac Seal® Type 21D

Head Style Q
Type 282

Equivalent:
US Seal® Type Q
John Crane® Type 11A
Pac Seal® Type 40

Head Style R
Type A42

Equivalent:
US Seal® Type R
John Crane® Type 2 Double

Head Style T
Type A52

Equivalent:
US Seal® Type T
John Crane® Type 1 Double
Pac Seal® Type 51D

Head Style U
Type A1

Equivalent:
US Seal® Type U
John Crane® UK Type 1
Pac Seal® Type 300

Head Style W
Type 1609 / 1645

Equivalent:
US Seal® Type W & WT
Pac Seal® Type 9
John Crane® Type 9 & 9T
Apex® Type A9T

Head Style X
Type 1609S /1645S

Equivalent:
US Seal® Type X & XT
Pac Seal® Type 8
John Crane® Type 8-1 & 8-1T
Apex® Type A8T

Head Style Y
Type 1677

Equivalent:
Burgmann® Type M7N
Apex® Type AM7N
Pac Seal® Type 167

 

Standard Mechanical Seal Stationary Ring Types

 

Stationary Style 1
Type 11

Equivalent:
US Seal® Type 1 / 2
John Crane® Type N
Pac Seal® Type 1
Apex® Type Cup Mount

Stationary Style 3
Type 31

Equivalent:
US Seal® Type 3
John Crane® Type W
Pac Seal® Type 2
Apex® ‘O’-Ring Groove

Stationary Style 5
Type 32

Equivalent:
US Seal® Type 5
John Crane® Type P
Pac Seal® Type 3P

Stationary Style 9
Type 73

Equivalent:
US Seal® Type 8 & 9
Pac Seal® Type 9

Stationary Style 10
Type 8DINL

Equivalent:
US Seal® Type VGSG9
Burgmann® Type G9
Pac Seal® Type G9

Stationary Style 11
Type 8DINS

Equivalent:
US Seal® Type VGSG6
Burgmann® Type G6
Pac Seal® Type G6

Stationary Style 12
Type 19B

Equivalent:
US Seal® Type VGM-G60
Burgmann® Type G60
Pac Seal® Type B9
Apex® Type G60

Stationary Style 25
Type 23

Equivalent:
US Seal® Type 25
John Crane® Type A
Pac Seal® Type 5A

Stationary Style 27
Type 25

Equivalent:
US Seal® Type 27
John Crane® Type V
Pac Seal® Type 5V

 

For more information, please contact us here or use the enquiry form on this page. 

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