1. normal diameter
2. normal pressure
3. suitable medium
corrosive environment, oil, gas, water
4. suitable temperature
-29℃ - 450℃
5. port type
6. connection ends
rf / npt / bw / sw
1. The sealing surface of the valve seat and the disc is welded by cemented carbide, which improves the corrosion resistance and prolongs the service life of the valve.
2. SS + graphite or metal seal or pressure self-sealing between the valve body and the valve cover, the seal is reliable.
3. Medium backflow protection for pipes or equipment.
4. The large check valve is designed with a hydraulic damping cylinder to prevent the valve from colliding with the valve seat, damaging the valve or causing the pipe to vibrate due to rapid closing.
5. In the case of pigging requirements, the API 6D swing check valve can be manually operated to fix the opening position of the valve flap to achieve the purpose of pigging.