Pneumatically-controlled sand control valve introduced from the United States
Air-controlled sand control valve is available. The introduction of American technology research and development of abrasive valve, pneumatic abrasive control valve, sand blast gas valve and pneumatic remote switch, etc., constitute the most advanced and reliable press-in sand blasting system with flexible control and long service life. Pneumatic control, convenient operation and durable. Precise sand adjustment. In stock. Blasting abrasive valve, pneumatic abrasive control valve, sandblasting air valve and pneumatic remote control switch, which are researched and developed by American technology, are introduced to form the most advanced and reliable press-in sandblasting system.
Pneumatically controlled sand control valves are commonly used in film type pressure reducing valves, internal spring piston type pressure reducing valves and so on. The basic function principle of the pressure reducing valve is to reduce the water pressure by the local resistance of the flow path in the valve to the water flow. The range of the water pressure drop is automatically adjusted by the diaphragm connected to the valve disc or the pressure difference between the inlet and outlet of the piston. In recent years, some new pressure reducing valves have appeared, such as constant-ratio pressure reducing valves, whose construction principles. The principle of constant pressure reduction is controlled by the hydraulic pressure ratio of the floating piston in the valve body. The pressure reduction ratio at the inlet and outlet sides is inversely proportional to the piston area ratio at the inlet and outlet sides.