Brass 1/8 NPT Safety Relief Valve, 150 PSI preset, single
✔️ Brass hard-seat, 150 PSI preset, 129 SCFM, -65°F to 400°F
This hard-seat brass safety relief valve protects pneumatic systems by venting excess pressure. It's built for industrial air lines, compressors, and other high-pressure equipment where a fixed relief setting is essential.
| Dimension |
Details |
| Thread size |
1/8" NPT (OD 0.405" / 10.29 mm) |
| Operating range |
-65°F to 400°F |
| Preset pressure |
150 psi |
| Flow |
129 SCFM |
✅ Preset at 150 psi with 129 SCFM flow
✅ 1/8" NPT male thread; outer diameter 0.405" (10.29 mm)
✅ Brass body with metal-to-metal seal for harsh environments
✅ Operating range -65°F to 400°F; ASME SRH-series certified
✅ Made in USA; heavy-duty industrial grade
💡 What is a brass hard-seat pressure relief valve used for in industrial pneumatic systems?
In practical terms, it helps prevent overpressure by venting safely at a fixed setting.
- handy for guarding compressors and air lines against overpressure
- provides dependable, fixed relief to protect components and tooling
- built to withstand harsh environments with brass seats and stainless internals
