Manually adjust the pneumatic valve T40H principle and specifications

manual regulation principle of TH effect of pneumatic valve: adjust the pneumatic valve and control valve, by accepting conditioning control unit of the output control signal, from engine operation to change fluid flow. Adjust the pneumatic valve generally consists of actuators and pneumatic valves. According to the ticket enforcement agencies use the power can be divided into: pneumatic regulating pneumatic valve, pneumatic valve, electric control hydraulic regulating pneumatic valve, self-reliance type pneumatic valve adjustment; According to the functions and features are divided into: linear features, such as percentage features, parabolic characteristics; According to the itinerary features can be divided into: straight travel, Angle of travel. Regulating pneumatic valve pneumatic valve body is a lot of more phyletic, the commonly used types of pneumatic valve body is through single-seat, pass-through two-seater, angular, diaphragm, small flow rate, tee, eccentric rotating, butterfly, sleeve. Adjust the pneumatic valve is suitable for the air, water, steam, all kinds of corrosive medium, mud, oil, etc. Flow capacity (Cv value Cv=. Kv is to adjust one of the main parameters of pneumatic valve selection, to adjust the flow capacity of pneumatic valve is defined as: when regulating pneumatic valves, pneumatic valve pressure difference on both ends. G/cm for MPa, fluid density, regulating the flow of pneumatic valve number per hour flow diameter, called flow capacity, also known as the flow coefficient, expressed as a Cv, unit for t/h. Manual regulation TH characteristics of pneumatic valve: pneumatic valve/TH manual adjustment self-locking manually adjust the pneumatic valve is mainly used in urban central heating, circulating water in thermal power plant pipe network and refrigeration and air conditioning engineering, have the function of the globe, intercepting and regulating flow, can replace flow orifice, is a kind of variable aperture throttling device. TH manually adjust the pneumatic valve, pneumatic valve is suitable for the medium and low pressure water supply manual adjustment boiler feed water pipe and high-pressure heater drain pipe, pneumatic disc to make it through the rotating cylindrical form window with pneumatic valve seat area change, so as to realize the purpose of flow adjustment. Adjust the rotation Angle of opening and closing of pneumatic valve, pneumatic valve by adjusting the opening at the top of the dashboard to indicate. Available with electric actuators, implement remote automation.