Temperature, pressure and the causticity of the material The maintenance of the working environment The requirement of environment Cost
The material of gaskets
yongdu
The maximal temperature (degF)
The maximal pressure(psi)
The maximal temperature * The maximal pressure(degF * PSI)
The maximal temperature (degC)
The maximal pressure (bar)
The maximal temperature * The maximal pressure(degC * bar)
Artificial rubbe
water,air
250
60
15 000
121
4
496
vegetable fibre
Oil
250
160
40 000
121
11
1 322
Artificial rubber (filled with fabric)
water£¬air
250
500
125 000
121
34
4 130
PTFE
Chemistry Industrial
500
300
150 000
260
20
5 320
Compress asbestus *
Most working environment
750
333
250 000
399
23
9 068
carbon steel
The liquid in the high pressure
750
2 133
1 600 000
399
145
58 036
stainless steel
The liquid with causticity in the high pressure
1200
2 500
3 000 000
649
171
110 636
enlace
stainless steel /PTFE
Chemistry Industrial
500
500
250 000
260
34
8 866
carbon steel/asbestuss *
Most working environment
750
333
250 000
399
23
9 068
stainless steel /asbestus *
causticity
1200
208
250 000
649
14
9 220
stainless steel /ceramic
Hot-gas
1900
132
250 000
1038
9
9 313
As for the reason of the environment, the asbestos is forbidden in several areas, unless the customers have the requirement for asbestos, or we will not recommend asbestos to the customers.