Type 2 Elastomer Bellows Seals | John Crane Mechanical Seals
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< Back to Elastomer Bellow Seals

Type 2

Multi-purpose Non-pusher Elastomer Bellows Seal

The Type 2 mechanical seal is available in single, double and balanced arrangements. An outside-mounted spring results in a compact working height that enables it to fit very short stuffing boxes.


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Features

  • California Residents: PROPOSITION 65 WARNING
  • Fits equipment with confined space requirements and limited seal chamber depths in pumps, mixers, blenders, agitators, compressors and other rotary shaft equipment.
  • To absorb both breakout and running torque, the seal is designed with a drive band and drive notches that eliminate overstressing of bellows. Slippage is eliminated, protecting the shaft and sleeve from wear and scoring.
  • Automatic adjustment compensates for abnormal shaft-end play and run-out, primary ring wear and equipment tolerances. Axial and radial shaft movement is compensated for with uniform spring pressure.
  • Special balancing allows for higher pressure applications, greater operating speeds and lower wear.
  • Non-clogging, single-coil spring allows for greater dependability than multiple spring designs, and it will not run foul due to fluid contact.

Parameters

Temperature Limits

-40°F to 400°F/-40°C to 205°C (depending on materials used)

Pressure Limits

Type 2: 420 psi(g)/29 bar(g)

Type 2B: 1200 psi(g)/83 bar(g)

Speed Limits

Consult specification sheet speed chart.

Recommended Applications

  • 流程泵
  • 其他转动设备

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