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The seal is compressed to a predetermined height to optimize performance resulting in two uniform contact lines on the face of the seal. As the seal is compressed it deforms elastically to provide maximum resiliency allowing for maximum sealing.
Venting
For pressures over 70 BAR seals must be vented. In the vented condition the seal utilizes the system pressure to equalize the pressure within the seal, maintaining acceptable seal stresses and preventing the seal from collapsing.
Sealing Surface Finish
The groove and mating flange face must have a surface finish of 16 Ra for plated or coated seals. For gas and vacuum, a finish 4 to 8 Ra is recommended. Machining tool marks in groove or flange face must be concentric (circular lay). The seal amd mating hardware surfaces must be free from dirt, grit and other foreign materials.
O-Ring Seal Type
Pressure will determine the type of seal that should be selected |
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