Explosion proof pneumatic ball valve
Alternative name: pneumatic switch ball valve pneumatic O type ball valve pneumatic V type ball valve pneumatic cut-off valve pneumatic emergency cut-off valve pneumatic explosion-proof ball valve pneumatic cut-off valve
Model: QDQ421F-25P QDQ641F-25P
Overview of pneumatic explosion-proof ball valve:
The explosion-proof pneumatic ball valve adopts a rack and pinion pneumatic actuator, which is powered by compressed air. The linear movement of the piston rack drives the gear of the output shaft to drive the valve stem to rotate 90 ° to open and close. The actuator has double action and single action types. The pneumatic cut-off ball valve is an ideal device to achieve automatic control of industrial pipelines.
APL limit switch has a solid and beautiful design, die-casting aluminum alloy shell, powder layer, switch position can be cleared and identified by the indicator, quick device cam, adjustable cam The position of the switch cam can be quickly adjusted without tools through spline and spring installation. Double line interface (APL-5N spring bolt), anti drop bolt, bolt attached to the upper cover will not fall off during disassembly.
The hand wheel mechanism is used in combination with the pneumatic actuator, which is the main component of the automatic control system. It is mainly used to manually drive butterfly valves, ball valves, plug valves, etc. that open and close at an angle stroke of 90 °. It can also be used for other automatic control mechanical products that need to manually drive the field. When there is no air source or the field, the pneumatic switch ball valve can be opened and closed through the hand wheel device.
Product features:
1. Two piece floating valve body
2. Full bore design
3. Two way sealing
4. Fireproof, anti-static and anti fly out
Product application industry:
The products are suitable for automatic control systems in chemical, biochemical, papermaking, chemical fiber, pharmaceutical, environmental protection and other industrial fields.
Technical parameters:
1. Diameter range: DN15-DN200
2. Pressure range: PN10-PN63, ANSI150LB~300LB
3. Connection type: flange type
4. Temperature range ℃: - 29~120 (normal temperature) - 29~230 (medium temperature) - 40~560 (high temperature)
5. Valve seat sealing form: hard honey seal, soft seal
6. Sealing class: V class VI class
7. Body material: (1) WCB (2) CF8 (3) CF8M (4) CF3M
8. Drive device: pneumatic, electric
Explosion proof pneumatic cut-off ball valve can be divided into O-type ball valve and V-type ball valve, The O-type ball valve adopts floating structure, the core is precision casting, the surface is plated with hard chrome, the valve seat is made of reinforced polytetrafluoroethylene material, the flow port is the same as the pipe diameter, the flow capacity is great, the flow resistance is very small, and there is no leakage when closing. It is generally used as an on-off valve, especially suitable for high viscosity, fiber containing, granular media; V-shaped ball valve is of floating or fixed structure, with V-shaped notch on the ball core, which can realize proportional adjustment, and the flow characteristic is approximately equal percentage.
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