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|