Custom Spring Energized PTFE Seal Manufacturer

Each spring type suits different applications. Cantilever springs provide the most uniform radial load distribution and are ideal for rotary and reciprocating dynamic seals. Helical springs offer high unit loading in a compact cross-section, perfect for small-diameter static seals. Canted coil springs deliver near-constant force over a wide deflection range, making them excellent for applications with significant thermal cycling or gland tolerance variation. Our engineers will recommend the optimal spring type based on your specific operating conditions.

Start with your media and temperature. For universal chemical resistance up to 260°C, choose PTFE. For high mechanical loads and steam, choose PEEK. For abrasive slurries, choose UHMWPE. For dynamic rotary applications requiring low wear, choose carbon-filled PTFE. Not sure? Send us your media list and operating conditions — we will provide a material recommendation with supporting data.

Absolutely. PTFE maintains its sealing properties down to -200°C (liquid nitrogen temperatures) and below. The spring compensates for thermal contraction of both the jacket and the hardware, maintaining consistent sealing force. We have supplied spring energized seals for LNG valves, liquid oxygen systems, and cryogenic research equipment. Specify your minimum operating temperature and we will select the appropriate spring material to prevent embrittlement.

Yes. We CNC-machine custom lip geometries including V-lip, double-lip, slanted-lip, and fully custom profiles to match your specific gland geometry and pressure direction requirements. Send us your gland drawing or seal sample and our engineers will design the optimal jacket profile for your application.

Standard lead time is 10-20 days, as spring energized seals require jacket machining plus spring fabrication and assembly. Urgent orders can be expedited to 5-7 days. We maintain stock of common spring materials (SS316, Hastelloy C-276, Elgiloy) to reduce lead time on custom orders.

We accept prototype orders from 1 piece to validate your design. Production orders typically start at 25 pieces, with volume pricing available for 100+ pieces. We support small-batch production for specialty equipment and large runs for OEM supply agreements.