Jianqiao Valve Industry Group Co., Ltd. Jianqiao Valve Industry Group Co., Ltd.
Power station stop valve

Power station stop valve

Power station stop valve
Power station stop valve
Power station stop valve

Power station stop valve
Power station stop valve
Power station stop valve

Power station stop valve

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The Power Station Stop Valve is engineered for high-temperature and high-pressure steam, water, and condensate pipelines in power plants. Featuring robust forged or cast construction, precision-machined sealing surfaces, and excellent pressure resistance, it ensures dependable shut-off performance, minimal leakage, and safe operation under demanding power generation conditions.

Power station stop valve

The Power Station Stop Valve is specifically designed for critical isolation and shut-off applications in thermal power plants, nuclear facilities, and industrial steam systems. Built to withstand extreme temperatures and pressures, it provides reliable flow interruption and system protection.

Manufactured from high-quality alloy steel, carbon steel, or stainless steel, the valve features superior sealing performance, resistance to thermal shock, and long operational life. Available with manual, bevel gear, electric, or pneumatic operation, it can be integrated into modern power plant automation systems.

Key Features

  • Designed for high-temperature and high-pressure service
  • Reliable shut-off with low leakage performance
  • Excellent thermal shock resistance
  • Durable forged or cast steel construction
  • Long service life and low maintenance
  • Suitable for steam, water, and condensate
  • Available with manual or automated operation
  • High-strength sealing surfaces
  • OEM customization available
  • Compliant with international power station standards

OEM & Customization Capabilities

OEM Service Scope

  • Custom valve sizes DN15–DN800
  • Pressure ratings up to PN760
  • ANSI, ASME, DIN, JIS, BS, and GB standards
  • Custom face-to-face dimensions
  • Special alloy material selection
  • Electric, pneumatic, hydraulic, or manual operation
  • Customized actuator mounting
  • Customer logo and nameplate branding
  • Third-party inspection and testing
  • Engineering support for EPC projects

Customizable Options

Body Materials

  • Carbon Steel (WCB, WCC)
  • Alloy Steel (WC6, WC9, C5, C12A)
  • Stainless Steel 304 / 316
  • Duplex Stainless Steel

Trim Materials

  • Stainless Steel
  • Stellite Overlay
  • Hard-Faced Alloy
  • Tungsten Carbide Coating

Connection Types

  • Flanged
  • Butt Weld
  • Socket Weld

Operation Types

  • Manual Handwheel
  • Bevel Gear
  • Electric Actuator
  • Pneumatic Actuator
  • Electro-Hydraulic Actuator

Optional Features

  • Position Indicator
  • Limit Switch
  • Locking Device
  • Fire-Safe Design
  • Anti-Corrosion Coating
  • Intelligent Control System
  • Remote Monitoring Capability

Certifications

Our Power Station Stop Valves are manufactured and tested in accordance with international standards:

  • ISO 9001 Quality Management System
  • API 600 Design Standard
  • API 598 Inspection & Testing
  • ASME B16.34 Compliance
  • CE Certification
  • PED 2014/68/EU
  • ISO 5208 Leakage Testing
  • ISO 15848 Fugitive Emission Certification
  • NACE MR0175 / ISO 15156 Compliance
  • SIL Functional Safety Certification (Optional)
  • SGS / BV / TUV Third-Party Inspection Available

Power station stop valve

 

Parameter Specification
Product Name Power Station Stop Valve
Nominal Size DN15 – DN800 (½" – 32")
Pressure Rating PN16 – PN760
ANSI Class Class 150 – Class 4500
Body Material Carbon Steel, Alloy Steel, Stainless Steel, Duplex Stainless Steel
Trim Material Stainless Steel, Stellite, Hard-Faced Alloy
Seat Material Metal Seated
Connection Type Flanged, Butt Weld, Socket Weld
Operation Manual, Bevel Gear, Electric, Pneumatic
Temperature Range -29°C to +650°C
Leakage Standard API 598 / ISO 5208
Design Standard API 600, ASME B16.34, GB/T
Applicable Media Steam, Water, Condensate, Thermal Oil

Power station stop valve

Thermal Power Plants

Main steam pipelines, boiler systems, turbine inlet and outlet isolation.

Nuclear Power Plants

Critical safety-related steam and water control systems.

Combined Heat and Power (CHP) Plants

Steam distribution and energy transfer systems.

Petrochemical Industry

High-pressure steam utility networks and process units.

Industrial Boilers

Boiler isolation, startup, shutdown, and maintenance operations.

Energy & Utility Infrastructure

Reliable isolation and emergency shut-off for high-energy fluid systems.

Material customization plan

Customized 316L stainless steel valves forGerman chemical enterprises. Resistant tostrong corrosion, suitable for their acidicmedium transportation systems, with aservice life extended to over 8 years.

Structural optimization design

For the Saudi desert project, the valve stemsealing structure was changed to a doublebellows design to address the leakage issuein the high-temperature and dustyenvironment, and it was highly recognizedby the customers.

Interface standard adaptation

Customized API 600 standard valves for acertain company in the United States. Theflange size is fully compatible with ANSIB16.5, ensuring zero error during on-siteinstallation and reducing the constructionperiod by 30%.

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