High-pressure tolerance: The maximum working pressure reaches Class 900 (PN150), meeting the requirements of harsh working conditions
Bidirectional sealing: Precisely ground gate plates and valve seats, achieving zero leakage in both directions
Low flow resistance design: Full-diameter structure, smooth medium flow, small pressure drop
Corrosion resistance and wear resistance: Valve body and internal components use special alloy steel, with surface hardening treatment
Multiple driving methods: Supports manual, gearbox, pneumatic or electric operation
Long service life design: Self-lubricating valve seats, reducing wear, with a long maintenance cycle
Installation convenient: Complies with API 6D standards, flange connection, suitable for various pipeline systems
Main material: Carbon steel, stainless steel, alloy steel
Size range: NPS 1～ NPS 42
Pressure level: CLass150～2500
Temperature range: -46～121
Operator: Manual, Pneumatic, Electric, etc..
Application scenarios: The application scope mainly includes oil fields, crude oil/natural gas extraction, and wellhead equipment
◎ Design Standard: API 6A,API 600,GB/T22513，NACE MR0175
◎ Pressure Temperature Rate: ASME B16.34
◎ Face to Face: ASME B16.10
◎ Flange Standard: ASME 16.34,ASME B16.47
◎ Butt Weld Standard: ASME B16.25
◎ Fire Safe: API 6A
◎ Pressure Test: API 598
Designed specifically for deep-cold media such as LNG and liquid oxygen, this valve features an austenitic stainless steel body that undergoes special deep-cold treatment to ensure reliable sealing and operational performance under extreme conditions of -196℃. The valve stem adopts an extended neck design and is equipped with a vacuum insulation structure, effectively blocking the transmission of cold energy. The valve can be equipped with either a flat seal or a conical seal structure, allowing for selection based on different pressure ratings, and is suitable for precise flow control in liquefied natural gas storage and transportation, air separation equipment, and low-temperature chemical systems.
The Axial Flow Check Valve has a unique axial flow design, and its spool is aligned with the flow direction, significantly reducing the resistance loss when the fluid passes through. The spool is driven by spring or fluid pressure for quick opening and closing. When the fluid is flowing forward, the spool is pushed open and the fluid passes smoothly. When the fluid flows in reverse, the spool is quickly closed, effectively preventing backflow, and ensuring the stability and safety of the system operation.
Expanding Slab Gate Valve is a type of slide valve that utilizes parallel gate plates as its closing mechanism. These plates are equipped with a spreading mechanism to enhance functionality. The force pressing the plates against the valve seat is regulated by the medium pressure acting on either a floating gate plate or a floating valve seat. In dual gate flat gate valves, the inter-plate spreading mechanism provides additional pressing force. This valve is designed with innovative features including low operating torque, rapid actuation, minimal vibration, extended operational life, and enhanced safety. It is mainly used for the isolation or venting of gases and liquids in pipeline systems.