Anderson Greenwood vs Oliver Valves
How Anderson Greenwood and Oliver Valves compare on origin, specialisation and valve range — and the Vajra alternative to both, supplied to the same standards with full certification.
Anderson Greenwood vs Oliver Valves: what is the difference?
Anderson Greenwood (USA, est. 1947) is known for Pilot-operated safety relief valves, pressure relief valves, and instrumentation valves for oil & gas and petrochemical. Oliver Valves (United Kingdom, est. 1980) is known for Instrumentation valves, subsea valves, double block and bleed (DBB) valves, and monoflange manifolds for oil & gas. They overlap most in needle valves, accessories. Below is the side-by-side, then the Vajra equivalent — a peer manufacturer supplying the same standards.
| Anderson Greenwood | Oliver Valves | |
|---|---|---|
| Origin | USA | United Kingdom |
| Founded | 1947 | 1980 |
| Known for | Pilot-operated safety relief valves, pressure relief valves, and instrumentation valves for oil & gas and petrochemical | Instrumentation valves, subsea valves, double block and bleed (DBB) valves, and monoflange manifolds for oil & gas |
| Valve range | 3 categories | 3 categories |
Where Anderson Greenwood and Oliver Valves compete
The Vajra alternative to both
Vajra Industrial Solutions is a peer valve manufacturer supplying API 6D / ASME B16.34 certified valves equivalent to both Anderson Greenwood and Oliver Valves — under one PO, with full documentation.
- API 526 safety relief valves - orifice sizes D through T, WCB/SS 316/Duplex body
- ASME Section VIII UV stamp and National Board certification available
- API 527 seat tightness tested - 0 bph or 40 bph leakage per orifice size
- Pilot-operated safety valves for back-pressure service and set pressure <10% CDTP
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