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 strong organic acids, mineral acids and alkali services where zirconium corrosion resistance is valuable. Zirconium pressure relief valves are used in chemical processing systems requiring dependable operation in difficult media.
High-Performance Flow & Safety Instrumentation Solutions
Zirconium 702 is commercially pure zirconium used for excellent resistance to many acids, alkalis and organic compounds.
| Element | Weight Percentage (%) |
|---|---|
| Zirconium + Hafnium | 99.2 min |
| Hafnium (Hf) | 4.5 max |
| Iron + Chromium | 0.20 max |
| Oxygen (O) | 0.16 max |
| Nitrogen (N) | 0.025 max |
| Carbon (C) | 0.05 max |
| Hydrogen (H) | 0.005 max |
*Composition limits are indicative for the listed grade family; applicable product specifications may vary depending on valve component and product form.
Zirconium 702 combines useful ductility with excellent corrosion resistance in specialized chemical service.
| Property | Typical / Minimum Value |
|---|---|
| Tensile Strength | 379 MPa min |
| 0.2% Yield Strength | 207 MPa min |
| Elongation | 16% min |
| Hardness | Approx. 170 HB max |
| Density | Approx. 6.5 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.
Commonly selected for acetic acid and organic acid systems.
Used in corrosive process lines requiring zirconium compatibility.
Suitable for selected caustic and alkali applications.
Used in specialty chemical and fine chemical pressure systems.
Applicable in corrosive exchanger and reactor circuits.
Selected for specific mineral acid services after media review.
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 |