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.
Designed for lightweight pressure systems, air, gas and selected non-corrosive services. Aluminum pressure relief valves provide low weight, good machinability and dependable protection where material compatibility and pressure ratings are suited to the application.
High-Performance Flow & Safety Instrumentation Solutions
Aluminum 6061 is a heat-treatable aluminum-magnesium-silicon alloy widely used for lightweight machined components.
| Element | Weight Percentage (%) |
|---|---|
| Aluminum (Al) | Balance |
| Magnesium (Mg) | 0.8 - 1.2 |
| Silicon (Si) | 0.4 - 0.8 |
| Iron (Fe) | 0.7 max |
| Copper (Cu) | 0.15 - 0.40 |
| Chromium (Cr) | 0.04 - 0.35 |
| Zinc (Zn) | 0.25 max |
| Manganese (Mn) | 0.15 max |
| Titanium (Ti) | 0.15 max |
*Composition limits are indicative for the listed grade family; applicable product specifications may vary depending on valve component and product form.
Aluminum 6061-T6 provides good strength-to-weight ratio and machinability for suitable pressure relief valve designs.
| Property | Typical / Minimum Value |
|---|---|
| Tensile Strength | 290 MPa typical |
| 0.2% Yield Strength | 240 MPa typical |
| Elongation | 8 - 12% typical |
| Hardness | Approx. 95 HB |
| Density | Approx. 2.70 g/cm3 |
*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.
Suitable for air and gas pressure protection where aluminum is compatible.
Used in portable skids and weight-sensitive assemblies.
Applicable for non-corrosive industrial pressure circuits.
Used in low-weight control and instrument systems.
Suitable for pneumatic automation and machine systems.
Used in custom valve assemblies requiring machinable lightweight bodies.
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 |