Product overview:
Pneumatic knife gate valve is a relatively complex automatic control instrument, composed of a variety of pneumatic components and valve bodies. It is mostly used in occasions requiring quick cut-off or opening. It is suitable for medium pipelines such as sugar, paper pulp, sewage, coal slurry, ash, dust, slag-water mixture, etc. It can be used as a medium for cutting off and throttling. Pneumatic knife gate valve is suitable for horizontal installation and inclined installation. Double-acting cylinder: Two-position control for opening and closing of the gate; Single-acting cylinder: When the circuit and air circuit are cut off or malfunctions, the gate is automatically opened or closed (ie normally closed or normally open)


Control instructions:
Pneumatic knife gate valve are available from 3″ to 24″ in size. Available in standard pressure ratings of 150PSI (ANSI B16.5 Class 150), heavy duty fabricated carbon steel or stainless steel Pneumatic knife gate valve material available. Stainless steel gate and stem for corrosion resistance and durability. Meets manual hand wheel or pneumatic / hydraulic cylinder or electric motor.
The pneumatic knife gate valve adopts SC series straight-stroke cylinder. The upper air inlet of the cylinder pushes the piston to lower the gate to close the valve, and the lower air inlet pushes the piston to raise the gate to close the valve. It is equipped with triple parts, solenoid valves, Accessories such as induction switches or positioners can cooperate with the control system to remotely control the valve for free opening and closing operations.

Knife gate valve related parameters:
Model:PZ673H,W,Y,TC,X,F,PU
Body Material:WCB ,stainless steel
Sealing structure: one-way sealing, two-way sealing
Valve structure: open-plate bright rod, dark-plate bright rod, penetrating type, two-way opening
Support form: triangle type, four-column type, steel plate type, concealed plate type, arch bridge type (unique structure)
Connection form: Wafer, flange
Nominal diameter: DN50~DN3000 NPS 2"~120" (non-standard customized)
Working temperature: ≤1000℃ (The specific temperature resistance depends on the selected material)
Nominal pressure: 0.6Mpa, 1.0Mpa, 1.6Mpa, 2.5Mpa, 5K, 10K, 150LB
Actuating mechanism: hand wheel, pneumatic, hand pneumatic, electric, electro-hydraulic, hydraulic, bevel gear, sprocket, lever

Selection criteria for knife gate valve
Design and manufacturing standards: JB/T 8691-2013, MSS SP-81
Structure length standard: GB/T 15188.2-1994-J21, MSS SP-81
Flange connection standards: GB/T 79, ASME B16.5, GB/T9113.1-2000
Pressure test standard: JB/T 8691, MSS SP-81
Ram grinding standard: GB/T 1184-1996 (level 12)
Valve seat fine plus standard: GB/T 1184-1996 (level 11)
Valve stem specifications: JB/T 8691-2013
Stud bolt standard: GB899-76
Product identification standard: GB/T12220
Supply standard: JB/T7928


Our pneumatic knife gate valves are engineered to provide precise control over material flow, making them ideal for applications where a tight shut-off is essential. With innovative design and reliable performance, our valves ensure the efficient handling of various materials.
Explore our selection of knife gate valves and experience the excellence that chongqing Jeri Marine brings to material handling. With a focus on quality, precision, and durability, our pneumatic knife gate valves are the reliable solution for achieving optimal performance in your systems. Partner with us to elevate your industrial processes and discover the benefits of working with a trusted name in bulk material handling solutions.
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