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Home > Seal Application Limits > Pressure, Temperature

Mechanical Seal Application Limits

Typical dynamic pressure and temperature limits of common seal types

Seal Type Pusher Non-pusher Balanced Unbalanced Max. Pressure
(kPag/psig)
Temperature Range
(ºC / ºF)
Elastomeric bellows   x   x 2070 / 300 -40 to 205 / -40 to 400
Elastomeric bellows   x x   6900 / 1000 -40 to 205 / -40 to 400
Metal bellows   x   x 2070 / 300 -75 to 425 / -100 to 800
O-ring secondary seal x     x 1380 / 200 -40 to 260 / -40 to 500
O-ring secondary seal x   x   6900 / 1000 -40 to 260 / -40 to 500
Polymer secondary seal x     x 1380 / 200 -75 to 260 / -100 to 500
Polymer secondary seal x   x   5070 / 500 -75 to 260 / -100 to 500
Stationary slurry x   x   2670 / 400 -40 to 205 / -40 to 400
Split seal x   x   1380 / 200 -40 to 205 / -40 to 400
Dual gas seal x   x   2070 / 300 -40 to 260 / -40 to 500
Dual gas seal     x   1725 / 250 -40 to 260 / -40 to 500

Next: Typical PV – Limits of face material combinations in non-lubricating fluids, i.e. watery substances

 

 

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