pneumatic pressure control valve / electric control valve / ball ON-OFF valve
With the smart positioner of the control valve, the valve position sensor, electric control system and a microprocessor to do continuous position control, can also be through the internal function of the realization of continuous process control ( PID function).
IQ(D)24 Series of Intelligent Pressure-balanced Low Noise Control Valve uses modular design and impact structure. Through the special symmetric holes on the valve trim, it could reduce the noise and pressure, thereby preventing from flashing and cavitation, make it applicable for high pressure difference and low noise conditions to meet customers requirements. Double-sides valve seat and compressing connection of the valve body, greatly enhance the sealing grade and service life of the valve lead, which make it easy to repair and greatly increase the general performance of the regulating valve.
ZM10 series muti-springs pneumatic reinforce actuator, makes the valve realize the conversion of normal close and normal open on site easily, the spring can be effectively protected from the corrosion to prolong the service life of actuator and convenient for customers operation. The actuator and the intelligent valve positioner are connected pipeless to strengthen the antisemitic performance, stability and precision adjustment, to meet to exactly control of the working conditions.
Control valves are valves used to control conditions such as flow, pressure, temperature, and liquid level by fully or partially opening or closing in response to signals received from controllers that compare a "setpoint" to a "process variable" whose value is provided by sensors that monitor changes in such conditions. The opening or closing of control valves is usually done automatically by electrical, hydraulic or pneumatic actuators. Positioners are used to control the opening or closing of the actuator based on electric, or pneumatic signals. These control signals, traditionally based on 3-15psi (0.2-1.0bar), more common now are 4-20mA signals for industry, 0-10V for HVAC systems, and the introduction of "Smart" systems, HART, Fieldbus Foundation, and Profibus being the more common protocols.
A control valve consists of three main parts in which each part exist in several types and designs: Valve's actuator Valve's positioner Valve's body
Pneumatic control valve, Self-operated control valve, electric control valve, Single seat control valve, flow control valve, three way control Valve