Mechanical Seals

Type 1645B/1645BS

Multiple Spring Seals

Narrow profile, multiple spring seal, designed for the common American ANSI B73-1974 centrifugal pump standard.

Frequently fitted with Type 23 PTFE boot mounted stationary seal.

Types 1645B and 1645BS are balanced designs for stepped-shafts.

The stock size is always set by the shaft size under the seal body.

A PTFE backup ring is recommended to be specified for higher pressure ‘O’-Ring applications.

Features

  • Narrow profile, Multiple Spring Seal
  • To suit common American ANSI B73-1974
  • Fitted with Type 23 P.T.F.E Boot Stationary

Operating Limits

  • Temperature: -30°C to +140°C
  • Pressure: Up to 40 bar (580 psi)
  • For full Performance Capabilities please download data sheet

Limits are for guidance only. Product performance is dependent on materials and other operating conditions.

Send us an enquiry

To help us provide you with the best answer, please provide as much of the following as possible:

  • Vulcan Type Number
  • Shaft size
  • Seal face materials
  • Elastomer materials
  • Quantity

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