Type502

John Crane Type502 Replacement

The Type 502 mechanical seal is a high-performance elastomeric bellows seal designed by John Crane. It is mainly used in process pumps and other rotating equipment that operate under challenging conditions. Its features include a fully convolutional elastomeric bellows, which makes it highly flexible and able to fit into confined spaces. The design also compensates for shaft end play and misalignment, making it suitable for general service applications such as handling hot water and mild chemicals.

The Type 502 operates within a temperature range of -40°F to 400°F (-40°C to 205°C) and can handle pressures up to 580 psi (40 bar). It is designed to be bi-directional, meaning it can function effectively regardless of shaft rotation direction. This seal is typically used in industries that rely on pumps, mixers, blowers, and compressors

Features

  With full enclosed  elastomer bellows design

  Insensitive to shaft play and run out

  Bellows should not twist due to bi-directional and robust drive

  Single seal and single spring 

  Conform with DIN24960 standard

 
 
Stationary Seat
Standard Stationary Seat:T3BO
T3BO equivalent to John Crane BO
Combination Materials

 Rotary Face

    Carbon graphite resin impregnated Ak
    Silicon carbide (RBSIC) O

    Hot-Pressing Carbon Ac

Stationary Seat

    Aluminium oxide(Ceramic) B
    Silicon carbide (RBSIC) O

    Tungsten carbide W1

 Auxiliary Seal

   Nitrile-Butadiene-Rubber (NBR) P
    Fluorocarbon-Rubber (Viton) V

   Ethylene-Propylene-Diene (EPDM) E

 Spring

    Stainless Steel (SUS304) F

 Metal Parts

    Stainless Steel (SUS304) F

Detailed parameters

de_DEDE

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