Operating Temps: Unfilled 100% Virgin PTFE -110° F to 500° F
Available Materials: Virgin PTFE, Glass Filled PTFE, Carbon Filled PTFE, Bronze Filled PTFE, Moly/Glass Filled PTFE, Modified PTFE (TFM)
Packaging: Bulk or Sets
Tags: PTFE Packing Set, Spring Energized Seals, Cold Flow Resistant, 0-Ring Seals, O-Ring Spring Action, Piston Seal, Shaft Seal
The 1500 series PTFE V-ring design features an innovative internal elastomeric O-ring energizer, which mitigates the inherent cold-flow characteristics of PTFE under compressive loading.
This synergistic combination enables the PTFE material to maintain its sealing integrity, while the rubber component provides a compensatory force to offset the viscoelastic relaxation of PTFE. Upon optimal compression, the rubber element becomes fully encapsulated and thermally insulated by the surrounding PTFE, shielding it from exposure to potentially deleterious substances.
The strategically positioned rubber rings occupy precisely defined voids within the set, effectively preventing solidification and ensuring a consistent ‘spring action’ – a phenomenon attributable to the elastomeric properties of the rubber, rather than a physical spring element. This design configuration enables a reliable, adaptive seal with enhanced durability and chemical resistance.
Heights are infinitely adjustable per customer request, without any need for tooling charges.
Pressure Ranges and Recommended Number of Rings per Packing Set*
| Pressure Range | Female Rings | V-Ring Packing Sets | Male Rings |
|---|---|---|---|
| 0-500 | 1 | 3-4 | 1 |
| 501-2000 | 1 | 4-5 | 1 |
| 2001-5000 | 1 | 5-6 | 1 |
| 5001 and Higher | 1 | 6-7 | 1 |
*Pressure rating and number of rings is dependent on the application and is subject to change.