Flange Seal Praedifa Series V2

The V2 flange seal made of rubber elastomer compounds was developed as an alternative to conventionally used O-ring/back-up ring combinations for static sealing at higher pressures. The robust seal geometry and use of particularly extrusion-resistant Parker rubber compounds facilitates installation and enhances sealing performance in pulsating pressure conditions, resulting in significantly longer service life. Due to the interference fit, the geometric design of the flange seal prevents the otherwise frequent occurrence of O-ring “pumping.”

Leakage which has been observed when O-rings are used can be attributed to a pressure buildup on the outer diameter which occurs with pressure surges and pressure fluctuations, frequently causing O-rings to be pulled out of their seats and being carried off by the fluid flow. This profile and the recommended groove prevent this effect. A radial movement and the wear it entails, which may occur with O-rings, is avoided by the special shape of the V2 seal.

• Enhanced sealing performance in non-pressurized conditions.

• Easy installation due to integrated static sealing function.

• Excellent media resistance in case of suitable compound selection.

• Suitable compounds available for special requirements of the chemical process industry.

• Suitable compounds available for special requirements of the food processing industry.

• Installation in open housings.

• Seal geometry prevents pressure build-up on low-pressure side in case of pressure peaks.

• Interference fit on the outer diameter enables overhead installation.