|
Parameter |
Specification |
|
Size Range |
2" – 60" (DN50 – DN1500) |
|
Pressure Class |
ASME Class 150 – 2500 / PN16 – PN420 |
|
Design Standards |
API 600 (Cast Steel), API 603 (Stainless), API 602 (Forged), ASME B16.34 |
|
Body Materials |
WCB, LCB, CF8M (SS316), C12A, Duplex 2205, Monel, Hastelloy |
|
Face-to-Face |
ASME B16.10 / EN 558 |
|
End Connections |
Flanged (RF, RTJ), Butt-Weld (BW), Socket-Weld (SW) |
Flexible Wedge Design
Prevents thermal binding during rapid temperature changes, improving reliability in high-temperature steam service.
Stellite® #6 Hard-Faced Seats
Enhanced resistance to erosion and galling for longer sealing life and high cycle performance.
Low Fugitive Emissions
Our valves are designed for Low Fugitive Emissions, compliant with API 624 / ISO 15848-1, meeting the strictest environmental audits in the EU and USA.
Low Torque Operation
Precision-machined stems and thrust bearings reduce operating torque and extend actuator service life.
|
Service Environment |
Recommended Type |
Seat Material |
Benefit |
|
Oil & Gas Pipeline |
API 600 WCB |
13% Cr / Stellite |
Robust bi-directional shut-off |
|
Chemical Refining |
API 603 SS316 |
Integral / SS316 |
Maximum corrosion resistance |
|
Power Plant Steam |
Pressure Seal C12A |
Stellite #6 |
High-temp/High-press stability |
|
Mining Slurry |
Knife Gate Valve |
EPDM / Metal |
Self-cleaning, avoids clogging |
|
Application Industry |
Typical Applications |
Key Benefits |
|
Power Plant Systems |
Main steam lines, boiler feedwater systems |
High-temperature resistance, reliable shut-off |
|
Oil & Gas Processing |
Crude oil pipelines, refinery units |
Long service life, high-pressure stability |
|
LNG & Cryogenic Systems |
LNG terminals, cryogenic transfer pipelines |
Low-temperature sealing performance |
|
Offshore & Marine |
Ballast systems, seawater cooling pipelines |
Excellent seawater corrosion resistance |
|
Chemical Processing |
Acid pipelines, chemical transfer systems |
Chemical resistance, stable sealing |
|
Water Treatment |
Municipal water supply, wastewater plants |
Low pressure drop, long-term reliability |
|
Mining & Slurry Handling |
Tailings pipelines, slurry transport systems |
Wear resistance, anti-clogging performance |
|
Industrial Automation |
Automated pipeline systems, utility isolation |
Low torque operation, actuator compatibility |
Quality Control
large enterprise scale
100% Pressure Testing: Every valve undergoes hydrostatic and pneumatic testing per API 598 prior to dispatch.
Standardized Production
Non-Destructive Testing (NDT): In-house X-ray (RT), Magnetic Particle (MPI), and Dye Penetrant (PT) testing to ensure the integrity of pressure-retaining castings.
Material Traceability
Full heat number tracking from the foundry to the final assembly. All shipments include EN 10204 3.1 Material Test Reports (MTR).
Third-Party Inspection
We regularly facilitate inspections by SGS, TUV, BV, and ABS to verify compliance for international tenders.

Large-scale production capacity
Our streamlined production lines support large-scale OEM orders and customized project processing.
Full lifecycle traceability
Each gate valve has a unique batch/furnace number, allowing for immediate tracking of its material origin, processing records, and test results.
Standard compliance
Our factory is ISO 9001:2015, CE/PED, and API certified, meeting the stringent entry requirements for European and American industrial projects.
Fast track service
We maintain a strategic inventory of semi-finished valve bodies in WCB and CF8M materials to shorten delivery times for emergency shutdowns, maintenance, and EPC projects.








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