PTFE (Teflon®)
Molded and Machined PTFE (Teflon®)
NCS offers a variety of materials in order to meet our customers’ needs, including PTFE (Teflon®). We have the capabilities to mold and machine PTFE, a fluoropolymer, using automatic and semi-automatic processes. We use many virgin resin compounds along with special blends to meet our customers’ requirements for molded PTFE parts, backup rings for O-rings, and NSF 51 and 61 dual-certified seals for all potable water, food, and beverage applications. Talk to us about your PTFE needs for your specific application.
PTFE (Teflon®) Backup Rings
Added Extrusion Resistance for Your Sealing Application
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 made of a hard, extrusion–resistant material such as high durometer nitrile, Viton (FFKM), or PTFE. They are designed to fit between the O-ring and the extrusion gap and prevent extrusion of the O-ring. If unsure about the precise size of the gap, it is always best to use two backup rings per one O-ring.
NCS offers backup rings, contoured backup rings, and PTFE (Teflon®) backup rings. Our PTFE backup rings include solid (uncut), single turn (scarf cut), and spiral (multi-turn) rings.
Available PTFE (Teflon®) Products
The benefits of PTFE (Teflon®) include its strong chemical resistance, long shelf life, and extreme temperature resistance capabilities. North Coast Seal stores and distributes a variety of products and features that use PTFE, including:
- PTFE ball seats
- PTFE flange gaskets
- PTFE ring gaskets
- PTFE washers/spacers
- PTFE O-rings
- PTFE backup rings
- PTFE diaphragm
- PTFE tube/bellows
- PTFE nuts/bolts/screws
- PTFE on/off valves
- PTFE knobs
- PTFE spiral wound gaskets
- PTFE OEM parts
- PTFE bridge pads