- Products Range
- Frac Equipment
- Manifolds
- manifold – well testing – choke manifold
- manifold – choke manifold – Oilserv
- manifold – choke manifold – Midwesco
- manifold – drilling – UBD Choke and Kill – onshore – Ircado
- manifold – drilling – choke and kill – onshore – CTF
- manifold – choke manifold – Fangman
- manifold – choke manifold – Schlumberger
- manifold – well testing – choke manifold – stock
- manifold – well testing – gas diverter – NPS
- manifold – well testing – oil diverter – NPS
- Manifolds
- MSI Manifolds
- MSI Drilling Manifolds
- MSI Loop Manifolds and Diverters
- Cementing Equipment
- Pumping Equipment
- HP Treating Iron
- Drilling
- Well Testing
- Production
- Accessories
- Recertification & Refurbishment
MSI Pressure Relief Valves
| Sizes | 2’’, 3’’ |
| Type | STD/H2S |
| Connections | Weco Unions Fig. 1502 |
| Design | Seat, Ball, Spring |
The pressure relief valve body is forged. The relief is created by a conical seat/ball/spring assembly. The spring effect is generated using a pile of conical spring washers.
The relief pressure is adjusted by compressing the pile of spring washers with the hexagonal nut on top of the valve.
The reset effect is automatic. This type of pressure relief valve is commonly called “Pop Off” valve.