Manufacturer of pneumatic knife gate valve
The pneumatic knife gate valve is a gate valve and a direct shut-off valve. The head of the pneumatic knife gate valve has an inclined edge, which has a certain cutting effect on the medium. It is suitable for fiber and solid particle media and sewage treatment systems. Manual, pneumatic and electric actuators can be worn. It is widely used in automatic control systems for paper making, mining, chemical industry and sewage treatment processes.
Parameters of pneumatic knife gate valve:
Materials: stainless steel, cast steel, carbon steel, special duplex steel, WCB, A105, 304, 304L, 316, 316L, etc
Diameter: DN50~DN600 (2 "~24")
Pressure rating: PN10PN16150LB
Normal temperature type: - 40 ℃ - 180 ℃ High temperature type: 180 ℃ - 350 ℃
Sealing grade: V Grade VI
Sealing type: hard sealing, soft sealing, single-sided sealing, double-sided sealing
Features of pneumatic knife gate valve:
1. The valve is designed as a whole, with small fluid resistance and flexible and convenient operation.
2. The screw drive of manual pneumatic knife gate valve adopts the design of double plane bearing, which greatly reduces the transmission friction and makes the valve open easily and smoothly.
3. The movable seal is adopted for the sealing seat of the pneumatic knife gate valve, and the O-ring provides the preload to make the sealing seat close to the valve clack, greatly reducing leakage, automatically compensating the wear of the sealing pair, and improving the service life.
4. The fixed guide claw has no groove design, which is not easy to cause media accumulation or blockage.
5. The metal hard seal or soft seal can be selected for the valve seat according to the medium and working conditions: the surface of the gate is chrome plated or ion nitrided to make the gate more wear-resistant and the service life of the sealing surface longer; You can choose soft sealing PTFE valve seat or reinforced PTFE valve seat or EPDM Buna-N rubber with good sealing performance and corrosion resistance.
6. Extensive medium adaptability: good sealing performance, economical and practical, and can be manually operated Pneumatic and electric, with a wide range of applications.
