Gate Valves for Power Generation
Power generation requires gate valves capable of handling high-pressure, high-temperature steam at Class 600 to Class 2500 (100–420 bar). Vajra Industrial Solutions supplies ASME B16.34 alloy steel gate valves in carbon steel (WCB), chrome-molybdenum (WC6, WC9), and high-alloy (P91/C12A) grades for steam generation, turbine isolation, feed water, and main steam line service — with IBR registration for Indian power plant compliance.
Key Applications — Gate Valves in Power Generation
Main Steam Isolation (Class 900–2500)
High-pressure alloy steel gate valves for main steam line isolation at boiler outlet and turbine inlet. Rising stem OS&Y design for visual open/closed indication. Pressure-seal bonnet for Class 900 and above — eliminates bolted bonnet leakage risk at high pressure. P91 (9Cr-1Mo-V) for temperatures above 565°C.
DN150–DN500, Class 900–2500, WC9 / P91, ASME B16.34, ASME B31.1
Feed Water and Boiler Feed Pump Discharge
Carbon steel (WCB) and chrome-molybdenum (WC6) gate valves for high-pressure boiler feed water at temperatures up to 350°C. OS&Y rising stem with back-seating feature for online packing replacement. IBR-registered design for Indian boiler compliance.
DN100–DN400, Class 600–900, WCB / WC6, ASME B16.34, IBR 1950
Auxiliary Steam and Extraction Steam
Gate valves for turbine extraction steam, auxiliary steam headers, and gland steam systems. Carbon steel (WCB) for saturated steam at Class 150–300. WC6 for superheated steam at Class 600. Available with gear actuator for remote operation from plant control room.
DN50–DN300, Class 150–600, WCB / WC6, API 600, ASME B16.34
Cooling Water and Condensate Systems
Carbon steel and cast iron gate valves for cooling water intake, condenser cooling water, and condensate return lines. OS&Y design for fire protection compliance. Cast iron (ASTM A126 Class B) for low-pressure (PN 10–16) cooling water at lower cost.
DN100–DN900, Class 150, WCB / Cast Iron, ASME B16.34 / BS 5163
Startup and Drain Valves
Small bore forged gate valves for superheater and reheater drain lines, attemperator connections, and startup vents. Forged body (ASTM A105 or F316) for high cyclic duty. Bellows-seal option for drain lines handling flash steam near operators.
DN15–DN50, Class 800–2500, A105 / F316, ASME B16.11, forged body
Required Certifications
Recommended Materials
Selection Factors
Technical FAQs
What is a pressure-seal bonnet in a gate valve?
What is IBR registration for gate valves?
Other Power Generation Valve Guides
Gate Valves in Other Industries
Get a Quote
Gate Valves for Power Generation
Share your process conditions or valve specification — we'll respond with pricing and compliance confirmation within 24 hours.