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Gasket: Full name PTFE gasket, also called PTFE gasket or Teflon gasket on abroad, Flat gasket made of PTFE rods, tubes, plates machined or cut , V-shaped gaskets, piston rings, ball valve gaskets and other good features such as corrosion resistance, anti-aging and non-conductive.
The back up ring is a plastic or rubber ring that prevents the O-ring from entering the gap. When high pressure is applied to the O-ring, its soft rubber material may be forced into the gap, causing the O-ring to extrude. A hard back up ring material will prevent the O-ring material from flowing into the gap, preventing premature failure. The plastic back up ring is solid flat cut, scarf cut, spiral cut.
The back up ring is a rigid ring that holds the elastomeric seal or plastic connection in its design shape and in the correct position. The back up ring is typically used with O-rings, lip seals and reciprocating shaft seals. They are also used to connect pipe connections of two different materials - usually a flexible material and a rigid material.
◆◆ PTFE, POM,PA
|Material description||Filled PTFE, PA, POM etc.|
|Available Color||Black, green, coffee, white, red, blue, gold and so on|
|Material Strength||Back up ring in PTFE material, it can apply to widely temperature range, excellent chemical resistance.|
Back up ring in POM material, has high mechanical strength and rigidity, fatigue strength.
Back up ring in PA material, has good physical and mechanical properties, high resilience.
|Medium：||oil water emulsion, water, hydraulic oil|