Product features:
Pneumatic fixed ball valve, ball valve is two-way valve, flow to unlimited. The middle flange is connected with the stud, the upper and lower stem are equipped with sliding bearing, reducing friction, using the operation saving force and smooth. Under normal circumstances, when the low pressure seating rely on spring pre-tightening force to seat close to the sphere seal, high pressure, the formation of piston effect on the seat, under the effect of upstream medium pressure, make the pressure sphere to seating, products are widely used in process control system implemented on or off.