O-Ring Groove Static Seal Designs 1

Static Seals are divided into two primary categories: Radial Static type and Face or Flange type.

Radial Seals require the presence of a diametral clearance gap for installation. FACE OR FLANGE type seals have no clearance gap, but consist of a groove cut into one flange with a flat mating flange bolted together to give a surface to surface contact.

There are two types of static radial designs:

Male or Plug – the O-Ring groove is located on a plug which is inserted into the housing or cylinder (Fig. 20).
Female or Tube – The O-Ring groove is located in the housing or cylinder and a tube is installed through the O-Ring I.D. (Fig. 24).

Male or Plug Seal design is based on the following factors (refer to Fig. 20).

• Bore Diameter (a)
• Plug Dimension (h)
• Groove Diameter (B)
• Groove Width (G)

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