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
The dual plate check valve features two semicircular, spring-loaded valve discs mounted on a central vertical pivot. When the valve opens, the force of the fluid and the spring act at the center of the disc, causing it to open from the base first. This design minimizes wear on the seal during opening, enhancing its durability. As the flow decreases, the discs slowly move back towards the seat due to the spring's force, ensuring a gradual closure. During backflow, the increased force on the discs leads to a faster closure, effectively reducing the risk of water hammer and hydraulic shocks. The spring’s force closes the top end of the disc first, preventing damage at the disc's base and prolonging the seal's lifespan.
The globe valve is mainly composed of valve body, valve cover, valve disc, valve stem and valve stem nut. The handwheel applies a certain torque on the upper end of the valve stem, and passes the valve stem to the valve petals to move it along the valve stem axis to achieve full or full-closed motion. The force applied by the handwheel can be obsessed with the valve seat to reach the stagnation state. The two-valve petals are designed to enter the top of the medium from the cover of the valve petals. The force force of the medium is the same as the valve closure direction, so the torque of the valve closure is small; The petals, the medium enters the exit of the valve from the inside, and generates a small amount of balance of the pressure of the pressure on both ends of the valve inlet and export, thereby achieving the effect of reduced the valve opening torque. Therefore, globe valve(double disc) is mainly used in high pressure or large-caliber pipelines. At the same time, the globe valve does not rub with the valve seat before the valve is closed, thereby reducing the wear of the cover surface and effectively extending the service life of the valve.
This series of products features a compact structure, small size, and S-shaped fluid channels. The valve core adopts a pressure-balancing structure, with high accuracy of the flow characteristic curve and the ability to achieve a larger CV. It can be quickly replaced, is stable and reliable, and is easy to maintain. A smaller actuating force can control a high pressure difference. There is a sealing ring between the valve core and the valve cage, significantly reducing the leakage. It is equipped with the RSMF series multi-spring pneumatic diaphragm actuator, which has a large thrust, strong steel strength, sensitive action, high-precision positioning, fast response, convenient and sturdy, and a long service life.