product
  Home — Product — Power station valve

Power station valve

Power Station Valves for Energy Generation

Power station valves are engineered for the extreme conditions found in thermal power plants, nuclear power plants, and renewable energy systems. They must withstand high temperature steam (up to 650°C), high pressure (up to 4500LB), and frequent thermal cycling.

Lianggu Valve Group has supplied valves to 100+ power plant projects ranging from 100MW to 1000MW capacity, including coal-fired, gas-fired, nuclear, and renewable power plants.

Key Features of Lianggu Power Station Valves

  • High Temperature Design: Extended bonnet, airfoil discs, and thermal stress analysis for steam service up to 650°C
  • High Pressure Rating: Up to 4500LB (PN760) for boiler feedwater and main steam systems
  • Forged Steel Option: Forged body and bonnet for high-pressure, high-temperature applications
  • Electric Actuation: Electric actuators with positioners for remote operation and control
  • Chromium-Molybdenum Steel: WC6, WC9, C5, C12 alloy steel for high-temperature strength
  • Strict Testing: 100% pressure test, radiographic test (RT), ultrasonic test (UT), magnetic particle test (MT)

Technical Specifications

ParameterRange
Size RangeDN10 - DN2000 (1/2" - 80")
Pressure Class150LB - 4500LB (PN10 - PN760)
Temperature Range-196°C to +650°C
Body MaterialsWCB, WCC, WC6, WC9, C5, C12, LCB, LCC, forged A105, F11, F22, F91, F92
Trim Materials13Cr, SS304, SS316, Stellite 6/21, Monel, 17-4PH
End ConnectionsFlanged (RF/RTJ), butt weld (BW), socket weld (SW)
Design StandardsAPI 600, ASME B16.34, GB/T 12234, GB/T 12235, NB/T 47044
Testing StandardsAPI 598, ASME B16.34, GB/T 13927, JB/T 9092

Power Station Valve Product Range

Lianggu Valve Group offers 20+ power station valve models:

1. Power Station Gate Valve Series

Bolted bonnet cast steel gate valve for power plant main steam and reheat steam systems. API 600 compliant.

Power StationAPI 600Cast Steel

Forged steel body for high-pressure, high-temperature power plant applications up to 4500LB.

Forged Steel4500LBHigh Pressure

2. Power Station Globe Valve Series

Power station globe valve for throttling and regulating steam flow. High-temperature design with extended bonnet.

GlobeSteamHigh Temp

3. Power Station Check Valve Series

Power station check valve for preventing backflow in boiler feedwater and steam systems. Swing or lift type.

CheckBackflowFeedwater

Power Plant Applications

Main Steam System

  • Main steam isolation
  • Reheat steam isolation
  • Steam dump valves
  • Valves: Power station gate & globe valves

Feedwater System

  • Boiler feed pump discharge
  • Feedwater heater bypass
  • Deaerator outlet
  • Valves: Power station gate & check valves

Circulating Water System

  • Condenser inlet/outlet
  • Cooling water pump
  • Valves: Butterfly valves, gate valves

Fuel Gas System

  • Gas fuel shut-off
  • Gas regulator station
  • Valves: Ball valves, butterfly valves

Power Station Valve FAQ

What projects is Power Station Valve suitable for?

Power Station Valve is designed for high-temperature and high-pressure systems with focus on material, sealing and stability and commonly used in main steam, feedwater, drain, bypass and high-temperature high-pressure systems. If you are not sure about the model, send us the working condition first.

What happens if the wrong power station valve is selected?

The common risk is thermal cycling, pressure shock and high-temperature sealing are key selection points. Valve selection is not only about size and price; medium, pressure, temperature and standards must be reviewed together.

What information is needed to quote power station valve?

Please provide size, pressure class, material, connection, medium, temperature, quantity, operation method, standard and certificate/testing requirements.

Can power station valve be customized?

Yes. Non-standard size, special material, sealing structure, connection, actuator, inspection documents and packing requirements can be discussed by project.

How is power station valve tested before shipment?

According to standards and order requirements, shell pressure, seat sealing, appearance, dimensions and documents can be checked. ITP, NDT, material and calibration documents can also be supported.

Can project documents be provided for power station valve?

Yes. Drawings, quality plan, ITP, material certificates, inspection reports, pressure test records, NDT/calibration/certificates can be prepared according to order requirements.

What is the delivery time for power station valve?

Regular stocked models can be arranged faster. Non-standard, special material, high-pressure or batch orders depend on technical confirmation and production schedule.

Why do prices vary so much for the same power station valve?

Differences usually come from material, pressure class, sealing structure, standard, testing requirements, actuator and document package. Technical conditions should be aligned before quotation.

What is often ignored when buying power station valve?

The most ignored part is site condition. Is the medium corrosive? Does temperature fluctuate? Is operation frequent? Is third-party inspection required? All these affect selection.

What if I only know the working condition, not the model?

No problem. Send medium, pressure, temperature, size, connection standard and quantity. We can first check whether Power Station Valve is suitable.

Need Power Station Valves?

Our engineering team has supplied valves to 100+ power plant projects worldwide. API 600/6D, ASME B16.34 certified. Request a quote today.

Email: info@chlgvalve.com Call: +86-15601794339