Oliver Valves vs Parker Hannifin
How Oliver Valves and Parker Hannifin compare on origin, specialisation and valve range — and the Vajra alternative to both, supplied to the same standards with full certification.
Oliver Valves vs Parker Hannifin: what is the difference?
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. Parker Hannifin (USA, est. 1917) is known for Instrumentation fittings, needle valves, ball valves, manifolds, and high-pressure process valves (formerly Autoclave Engineers and Gould/Watts Fluidair). They overlap most in ball valves, needle valves, accessories. Below is the side-by-side, then the Vajra equivalent — a peer manufacturer supplying the same standards.
| Oliver Valves | Parker Hannifin | |
|---|---|---|
| Origin | United Kingdom | USA |
| Founded | 1980 | 1917 |
| Known for | Instrumentation valves, subsea valves, double block and bleed (DBB) valves, and monoflange manifolds for oil & gas | Instrumentation fittings, needle valves, ball valves, manifolds, and high-pressure process valves (formerly Autoclave Engineers and Gould/Watts Fluidair) |
| Valve range | 3 categories | 3 categories |
Where Oliver Valves and Parker Hannifin 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 Oliver Valves and Parker Hannifin — under one PO, with full documentation.
- SS 316L forged DBB ball valves to API 6D - DIB-1 and DIB-2 configurations
- Monoflange assemblies: 2-valve (isolate+drain) and 3-valve (DBB+bleed) in SS 316 and Duplex 2205
- NACE MR0175/ISO 15156 compliant - hardness-tested and TM0284 tested on request
- 1/4" to 2" needle valves in SS 316L - NPT, Swagelok tube, or Autoclave HP end connections
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