The accumulator piston seal is a polytetrafluoroethylene sealing ring that is pre-tightened by double O-rings to improve the sealing performance. It is suitable for the working conditions of fast speed, high pressure and pressure maintenance. The low friction performance of the material and the good sealing performance of the rubber elastic body, this optimized design greatly reduces the friction force and minimizes the leakage, and can be used for bidirectional motion piston accumulators, clamping cylinders and positioning cylinders , especially recommended for heavy duty and large diameter applications. Low gas permeability, good sliding performance in high pressure applications, no crawling phenomenon, simple structure. The materials that our company can make include various rubber materials (NBR, FKM, FFKM, SIL, EPDM, HNBR, CI, etc.), various polyurethane materials (oil resistance, hydrolysis resistance, high temperature resistance, food grade, ultra-wear resistance, etc.), various engineering plastics (PTFE, PTFE composite, ultra-high molecular polyethylene, PA, POM, phenolic resin, etc.) and metal materials.

keyword：Tetrafluoro series Engineering plastics series Rubber series Metal series

Products Detail

Parameters

The internal open type is suitable for internal positive pressure conditions. The C-ring is a typical self-sealing structure. When the medium pressure enters the C-ring in the working state, the pressure self-tightening effect is generated on the C-ring from the inside to the outside, that is, the greater the system pressure, the better the sealing effect. Due to the principle of opening and self-sealing, it is only necessary to overcome the elasticity of the sealing ring itself during installation, so a very ideal sealing effect can be obtained without using a large pre-tightening force. Our company adopts INCONEL 718 alloy to manufacture.

Standard material

Seal ring body: filled with polytetrafluoroethylene PTFE

O-ring: Nitrile NBR or Viton FKM

Star ring: Buna NBR or Viton FKM