PTFE (Teflon®)

Product overview

NCS offers a variety of processes in order to meet our customers’ needs NCS has the capabilities to mold and machine PTFE (Teflon®) using automatic and semi-automated processes. We use many virgin resin compounds along with special blends to meet our customer’s requirements.


✔ PTFE ball seats
✔ PTFE flange gaskets
✔ PTFE ring gaskets
✔ PTFE washers/spacers
✔ PTFE O-rings
✔ PTFE back up rings
✔ PTFE diaphragm
✔ PTFE tube/bellows
✔ PTFE nuts/bolts/screws
✔ PTFE on off valves
✔ PTFE knob
✔ PTFE spiral wound gaskets
✔ PTFE OEM Parts
✔ PTFE bridge pad

Teflon/PTFE back up rings

In a sealing application, backup rings provide added extrusion resistance, and prevent damage to O-rings and seals when subjected to high pressures, larger extrusion gaps, and/or high temperatures.

A backup ring is a ring of hard, extrusion resistant material such as high durometer nitrile, Viton (FFKM), or PTFE are just a few materials offered. A back-up ring is designed to fit between the O-ring and the extrusion gap and prevent the extrusion of the O-ring. … If unsure, it is always best to use two backup rings per 1 o-ring.

NCS offers back up rings, contoured back up rings and Teflon (PTFE) Backup rings. We offer PTFE Rings which include Solid (uncut), Single Turn (scarf cut), and Spiral (multi-turn) PTFE Backup Rings.

NSF/ANSI 51 And 61 Certified Seals

We also offer a full range of NSF/ANSI 51 and 61 certified seals for all potable water, food and beverage applications.

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