[Essential information]
Slurry knife gate valve is closed, the sealing surface can only rely on media pressure to seal, that media pressure will depend on the sealing surface of the ram pressure to the other side of the seat to ensure the sealing surface of the seal, which is self sealing. Most of the knife gate valve is sealed by force, that the valve is closed, to rely on external pressure to force the gate to the seat, to ensure the sealing surface of the seal of the valve in the pipe shall be installed horizontally.
[Standard parameter]
Design standard | API 600、API6D、ASME B16.34、GB/T 12234 |
Structural length | ASME B16.10、API6D、GB/T 12221 |
Connection standard | ASME B16.5、ASME B16.47、GB/T 9113、JB/T 79、HG/T 20592 |
Pressure test | API 598、GB/T 13927、JB/T 9092 |
Pressure temperature rating | ASME B16.34 、GB/T 12224 |
[Valve features]
1, ultra short structural length, saving material, can make the whole weight of pipeline system is greatly reduced.
2, the use of small space, can effectively support the strength of the pipeline, can reduce the possibility of pipe vibration.
3, the selection of austenitic stainless steel gate, corrosion resistance greatly improved, can effectively prevent the gate corrosion caused by the leakage of seal.
4, the sealing packing adopts flexible PTFE, reliable sealing, easy and flexible operation.
5, the gate with the knife, can effectively brake off all kinds of debris in the medium.
6, such as the use of hard sealing stainless steel, the valve to do spray welding treatment, it can be a good expansion of the valve temperature, pressure requirements.
[Adaptive condition]
Knife gate valves are widely used in industries such as chemicals, coal, food, sewage, paper making, steel, etc., and are ideal sealing valves.