CIRCOR vs Dresser-Masoneilan
How CIRCOR and Dresser-Masoneilan compare on origin, specialisation and valve range — and the Vajra alternative to both, supplied to the same standards with full certification.
CIRCOR vs Dresser-Masoneilan: what is the difference?
CIRCOR (USA, est. 1999) is known for Leslie and Circle Seal high-pressure instrumentation valves, Cameron (pre-SLB) valves, aerospace valves. Dresser-Masoneilan (USA, est. 1902) is known for Control valves, pressure regulators, and choke valves for oil & gas, refining, and power generation. They overlap most in globe valves, control valves. Below is the side-by-side, then the Vajra equivalent — a peer manufacturer supplying the same standards.
| CIRCOR | Dresser-Masoneilan | |
|---|---|---|
| Origin | USA | USA |
| Founded | 1999 | 1902 |
| Known for | Leslie and Circle Seal high-pressure instrumentation valves, Cameron (pre-SLB) valves, aerospace valves | Control valves, pressure regulators, and choke valves for oil & gas, refining, and power generation |
| Valve range | 3 categories | 4 categories |
Where CIRCOR and Dresser-Masoneilan 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 CIRCOR and Dresser-Masoneilan — under one PO, with full documentation.
- Needle valves and manifolds in API 602 Class 800/1500/2500 - same pressure ratings
- Globe control valves in WC9/P91 body for high-temp steam conditioning
- Full EN 10204 3.1 MTR and API 598 test certification
- 4–10 week delivery on instrumentation valves
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