- Design reference: GB, API
- Design standard: JB/T5298, API 6D ASME B16.34
- Flanged GB/T 12221 JB/T 5298, API 6D ASME B16.10
- Welded connection GB/T15188.1, API 6D ASME B16.10
- Flanged ends: GB/T9113 JB/T 79, ASME B16.5 MSS SP44
- Bult-welding ends: GB/T 12224, ASME B16.25
- Test and inspection: JB/T 9092, API 6D API 598
- The sizes of valve connecting flange can be designed according to customer’s requirement
- Applicable temperature: -29 to 800°C or upon the user requirement
- Applicable medium: petroleum, natural gas, water non-corrosive media (ordinary type)
- Petroleum, natural gas, water containing H2S, CO2 corrosive media
Since the gate makes the two valve seat surfaces change, the flat gate valve can also be applied to the medium with suspended particles. The sealing surface of the flat gate valve is actually automatically positioned, and the sealing surface of the valve seat is not damaged by the thermal deformation of the valve body.
In addition, thermal elongation of the valve stem does not overload the sealing surfaces, even if the valve is closed in a cold state. In addition, when the valve is closed, the flat gate valve without the pilot hole does not require high precision in the flapper closing position, so the opening and closing position can be controlled by the electric flat valve stroke.
