Durco vs Weir Valves
How Durco and Weir Valves compare on origin, specialisation and valve range — and the Vajra alternative to both, supplied to the same standards with full certification.
Durco vs Weir Valves: what is the difference?
Durco (USA, est. 1912) is known for Corrosion-resistant alloy valves for chemical service - Alloy 20, Hastelloy C-276, titanium, and high-silicon iron butterfly, globe, and ball valves. Weir Valves (UK / USA, est. 1871) is known for High-pressure forged steel gate, globe, and check valves; ASME Class 600–4500 power plant and nuclear valves; Atwood & Morrill, Hopkinsons, and Pacific Valves legacy brands. They overlap most in gate valves, globe valves. Below is the side-by-side, then the Vajra equivalent — a peer manufacturer supplying the same standards.
| Durco | Weir Valves | |
|---|---|---|
| Origin | USA | UK / USA |
| Founded | 1912 | 1871 |
| Known for | Corrosion-resistant alloy valves for chemical service - Alloy 20, Hastelloy C-276, titanium, and high-silicon iron butterfly, globe, and ball valves | High-pressure forged steel gate, globe, and check valves; ASME Class 600–4500 power plant and nuclear valves; Atwood & Morrill, Hopkinsons, and Pacific Valves legacy brands |
| Valve range | 4 categories | 3 categories |
Where Durco and Weir 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 Durco and Weir Valves — under one PO, with full documentation.
- ASTM A351 CN7M (Alloy 20), CW-6M (Hastelloy C-276), and A890 5A (Super Duplex) globe, gate, ball, and butterfly valves
- Titanium Grade 2 valves for concentrated nitric acid and bleach (NaOCl) service
- PVDF-lined and PTFE-lined butterfly valves and ball valves for chlorine, hydrofluoric acid, and aggressive oxidising service
- EN 10204 3.1 MTCs with chemistry and mechanical properties, NACE MR0103 hardness compliance certificates
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