Section IV – Static O-Ring Sealing
O-ring is "the fi nest static seal ever developed." 4.1 Surface Finish for Static O-Ring Seals The design charts indicate a surface roughness value not to exceed 32 micro-inches (32 rms) on the sealing surfaces for static seals with a maximum of 16 rms recommended for face-type gas seals. These fi gures are good general guidelines,
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