The R-Type ring gasket can be ordered to two different profiles, oval or octagonal in cross-sections. Both types have identical pitch diameter as the flange groove they correspond to. These gaskets are used in pressures up to 10, 000 PSI. The octagonal type has a higher sealing coeffient than the oval, therefore being the better gasket of the two. The oval type is the only gasket that will fit a bottom radiused groove. Flanges with flat bottom V-grooves will accept either style. Gaskets that have been torqued initiating a metal-to-metal seal should be discarded and not reused
Type |
Pressure Mpa |
Oval |
70 |
Octogonal |
70 |
Rx |
70 |
Bx |
150 |
Material:
Material |
Identification |
Max,Hard |
Temperature(°C) |
SoftIron |
D |
90 |
540 |
Low Carbon Steel |
S |
120 |
540 |
5Cr0.5Mo |
A182-F5 |
130 |
650 |
SS304 |
SS304 |
160 |
800 |
SS316 |
SS316 |
160 |
800 |
SS316L |
SS316L |
150 |
800
|