Power & Energy Valves
Industrial Valves for Power & Energy
ASME Class 600–2500 Valves for Thermal, Nuclear & Gas Turbine Power Plants
Power generation plants operate some of the most severe service conditions encountered in any industry — superheated steam above 600°C, main steam pressures up to 300 bar, and feedwater systems cycling millions of times over the plant's life. Vajra Industrial Solutions supplies ASME B16.34 Class 600 to Class 2500 gate, globe, check, and safety valves engineered specifically for power plant service.
Key Power Applications
We supply application-specific valve solutions for each segment of the power & energy industry.
Main Steam System
ASME Class 1500 and Class 2500 gate and globe valves for main steam stop-check, turbine bypass, and isolation service. Alloy steel (A217 WC9, C5) bodies rated for superheated steam. Rising stem, OS&Y design for valve position indication from a distance.
Boiler Feedwater
Check valves and globe valves for high-pressure boiler feedwater pump discharge lines. Non-return check valves prevent back-flow and protect feed pumps from reverse rotation. Trim hardened to resist erosion from high-velocity feedwater.
Safety & Relief Valves
ASME Section I (power boilers) and Section VIII safety valves for steam drum, superheater, and reheater safety protection. Spring-loaded, direct-acting designs. ASME Code stamped (UV, NB, and V marks). Set pressure range 10–300 bar.
Cooling Water & Condenser
Large-diameter butterfly valves (DN200–DN2000) for condenser cooling water inlet and outlet, circulating water pump discharge, and cooling tower connections. EPDM or BUNA-N seated, cast iron or ductile iron body for low-pressure, high-flow service.
Gas Turbine & Combined Cycle
High-temperature ball valves and globe valves for gas turbine fuel gas supply, air inlet, and cooling circuits. Stainless steel 316 body and trim for fuel gas isolation. ASME B16.34 Class 300–900 for fuel gas system.
Recommended Valve Range for Power
Our most commonly supplied valve types for power & energy applications.
| Valve Type | Specification |
|---|---|
| Gate Valve (Main Steam) | ASME Class 1500/2500, WC9/C12, rising stem OS&Y |
| Globe Valve (Feedwater) | ASME Class 600/900, WC6/WC9, bolted bonnet |
| Swing Check Valve | ASME Class 300–1500, WCB/WC6/WC9, tilting disc |
| Safety Valve (ASME Section I) | ASME B&PV Code, set pressure 2–300 bar, full nozzle |
| Butterfly Valve (Cooling Water) | DN200–DN2000, ductile iron, EPDM seat, Class 150 |
| Y-Strainer (Feedwater) | SS316, Class 600, 0.5mm screen, blow-off valve |
Applicable Standards & Certifications
- ASME B16.34 — Pressure-Temperature Ratings
- ASME B31.1 — Power Piping
- ASME Section I — Power Boilers (Safety Valves)
- API 600 — Gate Valves
- EN 12516 — Industrial Valves (Europe)
- ISO 9001:2015 — Quality Management
Available Materials of Construction
- ASTM A216 WCB (Carbon Steel, low temp)
- ASTM A217 WC6 (1.25Cr-0.5Mo alloy steel)
- ASTM A217 WC9 (2.25Cr-1Mo alloy steel)
- ASTM A217 C12A (9Cr-1Mo alloy steel)
- ASTM A351 CF8M (SS316 for cooling water)
- ASTM A351 CF3M (Low-carbon SS316L)
Frequently Asked Questions — Power Valves
What ASME pressure class is needed for main steam valves in a 600°C power plant?+
What material is used for main steam valves?+
Are your safety valves ASME code stamped?+
What size butterfly valves do you supply for cooling water service?+
Need Power Valves? Get a Quote Today.
API 6D, ASME B16.34 certified. Full documentation. 24-hour quote response. Contact us at sales@vajravyuh.com or +91 9979774557
