A, use: is A quarter-turn structure, and supporting the use of valve positioner can realize proportional control; V type valve core is the most suitable for all kinds of control situation, has the rated flow coefficient is big, adjustable ratio, sealing effect is good, regulating performance zero sensitive, small size, can be vertical lie installation. Applicable to control gas, steam, liquid, and other media.
B, characteristics: a quarter-turn structure that consists of V type valve, pneumatic actuators, locator and other accessories is composed; There is a nearly hundred than the natural flow characteristic; With double bearing structure, starting torque is small, with very good sensitivity and induction rate; Super shear capacity.
C, pneumatic piston actuator using compressed air as power supply, through the piston movement drive crank arm to 90 degree turn, to allow the valve to be automatic alignment. Pneumatic piston actuator part: adjusting bolt, actuator housing, crank arm, cylinder cylinder block, cylinder shaft, piston, connecting rod, universal shaft.
D, pneumatic control valve working principle: pneumatic control valve by the actuators and adjusting mechanism composition. Actuator is regulator thrust components, it according to the control signal of the size of the pressure produced the corresponding thrust, and promote the regulatory agency action. The body is pneumatic control valve of the control unit, it directly and adjust medium contact, adjust the fluid flow.
 

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