Pipe-Lok Vales & Fittings Company delivers precision-engineered instrumentation fittings and valves trusted for reliability, safety, and performance in industrial applications with a strong focus on engineering excellence and quality control.
Specified for highly corrosive and ultra-clean services where fluoropolymer chemical inertness is essential. PTFE pressure relief valves are suitable for aggressive acids, solvents and process media requiring non-metallic wetted surface compatibility.
High-Performance Flow & Safety Instrumentation Solutions
PTFE is a fluoropolymer with excellent chemical inertness, low friction and broad compatibility across aggressive chemical media.
| Element | Weight Percentage (%) |
|---|---|
| Base Polymer | Polytetrafluoroethylene |
| Fluorine Content | Approx. 76% |
| Water Absorption | Very low |
| Chemical Resistance | Excellent |
| Service Nature | Non-metallic / inert |
| Typical Color | White |
*Composition limits are indicative for the listed grade family; applicable product specifications may vary depending on valve component and product form.
PTFE provides excellent chemical resistance and low friction, with mechanical ratings depending on design and reinforcement.
| Property | Typical / Minimum Value |
|---|---|
| Tensile Strength | 20 - 35 MPa typical |
| Elongation | 200 - 400% typical |
| Hardness | Approx. 50 - 65 Shore D |
| Density | Approx. 2.2 g/cm3 |
| Temperature Capability | Up to approx. 260 deg C depending on design |
*Mechanical requirements depend on product form, heat treatment and applicable ASTM/ASME specification. Confirm final values against the material specification used for the pressure relief valve component.
High-performance material specifications for our complete Pressure Relief Valve range.
Designed for demanding pressure systems where material compatibility, corrosion resistance and reliable pressure protection are essential.
Used for aggressive acids, solvents and corrosive process media.
Suitable for clean and inert wetted-path applications.
Used where high purity and chemical compatibility are required.
Applicable for dosing and corrosive chemical handling systems.
Used in small-bore corrosive pressure protection lines.
Selected for non-metallic valve compatibility in severe acids.
Pipe-Lok Vales & Fittings manufactures high-quality alternatives to the following standard industry part numbers
| Swagelok Part No. | Pipe-Lok Vales & Fittings Equivalent | Availability |
|---|---|---|
| SS-4R3A | Available | Ready to Ship |
| SS-4R3A1 | Available | Ready to Ship |
| SS-4R3A5 | Available | Ready to Ship |
| SS-4R3A5-BU | Available | Ready to Ship |
| SS-4R3A5-EP | Available | Ready to Ship |
| SS-4R3A5-KZ | Available | Ready to Ship |
| SS-4R3A5-NE | Available | Ready to Ship |
| SS-4R3A5-RT | Available | Ready to Ship |
| SS-4R3A-BU | Available | Ready to Ship |
| SS-4R3A-EP | Available | Ready to Ship |
| SS-4R3A-KZ | Available | Ready to Ship |
| SS-6R3A-MM | Available | Ready to Ship |
| SS-8R3A-MM | Available | Ready to Ship |
| SS-R4M8F8 | Available | Ready to Ship |
| SS-R4M8S8 | Available | Ready to Ship |
| SS-R4S8 | Available | Ready to Ship |
| SS-R4S12MM | Available | Ready to Ship |
| SS-RL3M4-F4 | Available | Ready to Ship |
| SS-RL3M4F4-RT | Available | Ready to Ship |
| SS-RL3M4-S4 | Available | Ready to Ship |
| SS-RL3S4 | Available | Ready to Ship |
| SS-RL3S4-SC11 | Available | Ready to Ship |
| SS-RL3S4-EP | Available | Ready to Ship |
| SS-RL3S4-MO | Available | Ready to Ship |
| SS-RL3S4-KZ-11002 | Available | Ready to Ship |
| SS-RL3S6MM | Available | Ready to Ship |
| SS-RL3S8MM | Available | Ready to Ship |
| SS-RL4M8F8 | Available | Ready to Ship |
| SS-RL4MR8 | Available | Ready to Ship |
| SS-RL4S8 | Available | Ready to Ship |
| SS-RL4S12MM | Available | Ready to Ship |