pneumatic knife gate valves are composed of pneumatic actuator and knife gate valve. They are used on industrial pipeline for on-off operation. The structure of body and seat eliminates clogging shutoff for flow with fine particles.The disc bottom of knife gate valve is made into a blade shape with the purpose to cut some soft materials such as fiber,pulp or wood pulp, and it also serves favorable closing and opening.
Features:
- knife gate valve is composed of narrow body and sliding gate.
- The gate has sharp blade that can separated or cut the solid particles in the fluid media.
- The polishing treatment on the gate surface strengthens its penetrating power and effectively guarantees the service life of both packing and valve seat.
- The bottom of valve body is provided with the gate holddown device that can safely pressure the gate tightly on the valve seat in order to ensure valid tight-seal.
Technical Specification:
- Size Range: NPS2~NPS48,DN50~DN600
- Pressure Range: Class 150 /PN6 /PN10
3) Applicable Temperature: 0~200℃
4) Connection Type: wafer
5) Sealing material: Rubber,PTFE,Metal seal
6) Body Material: Carbon steel,stainless steel
7) Disc material:Stainless steel
8) Pressure test:GB/T13927, API598
9) Face to Face: GB/T12221, API609
10) Valve body : GB/T12224,ASME B16.34
Operating Mode: Pneumatic
Application:
- Mining, coal washing, iron and steel industry used for washing coal pipes, filter slurry pipes, discharging ash pipes, etc.
- Purification system used for wastewater, mud, sewage and water with suspended solids.
- Paper industry used for any mixture of pulp, material and water of any concentration.
- Power station ash removal used for slag slurry.
