Data Download
Pneumatic butterfly valve is a valve that opens and closes the butterfly valve by changing the reciprocating motion of the piston in the cylinder into rotary motion under a certain pressure (generally less than 0.8MPa). The valve is composed of cylinder, mechanical actuator and butterfly valve body. Users should install electromagnetic reversing valve, air filter, oil mist, throttle valve, pressure reducing valve and other pneumatic accessories in gas pipeline when using. Through the central control room PLC control system, centralized and remote automatic control of valves can be easily realized, and the production efficiency can be greatly improved.
Product characteristics
Pinless connection of axle plate, compact structure, light torque, convenient installation and maintenance
With compressed air as power and electromagnetic reversing valve, the cylinder can control the valve quickly, open and close quickly, and save energy efficiently. It is especially suitable for places with explosion-proof requirements.
Soft seal, 90 degree open and close, zero leakage, long service life
Intelligent positioner is used to receive 4-20mA current signal, which can automatically realize good regulating performance of the valve.
The passive contact signal of the corresponding position of the valve is output by using the valve position echo device.
According to the requirements of special working conditions, such as sudden outage of power and gas, to ensure that the valve is closed or open, can provide normally closed or normally open pneumatic valves, also can be equipped with manual operation mechanism, manual operation.
Choosing different parts and materials can be applied to various media.
Epoxy Resin Coating on Surface, Anti-corrosion and Beautiful
Description of the Names and Appendices of the Parts and Components of the Products
Valve is a device used to control the direction, pressure and flow of fluid in pipeline system. Double-acting pneumatic actuator controls the opening and closing of valves. When the circuit of single-acting pneumatic actuator, the air source is cut off or malfunction occurs, the valve is automatically closed or opened through the spring device inside the cylinder. The two-position five-way solenoid valve is used for the electronic control operation of the "open" or "close" of the pneumatic butterfly valve. The solenoid valve can be divided into plate connection type and pipe connection type according to the installation form. The solenoid valve can be installed directly on the side of the actuator without any pipe connection (i.e. plate connection). Multiple solenoid valves can also be combined to form a solenoid valve group, which can be installed in the electrical control box (i.e. pipe connection type). Solenoid valves are waterproof (IP65) and explosion-proof (EXdllBT4), with single and double electronic control. Rated voltage AC220V, DC24V, 4.5W. Gas source interface G1/4, exhaust interface G1/4 or G1/8. "Open" or "Close" with speed requirements, please specify when ordering. Limit Switch Responder is a device that transmits position signals of valves and actuators to field and remote control operation stations. It can be installed directly on actuators.
Department. It is characterized by field visual position indicator and fast adjustment of position cam. The adjustable cam is mounted by splines and springs, and the required position can be rotated and adjusted as long as the switch cam is detached from the spline. The internal stroke switch is connected with the wire and the wiring terminal. 8 terminals, and can be used to connect solenoid valves. There are shell protection type (IP67) and explosion protection type (EXdllBT4). Pneumatic electric positioner modular design, through the connection bracket can be directly installed in the upper part of the actuator. The DC current signal 4-20 mADC given by the control system is converted into the air signal driving the control valve to control the action of the control valve. At the same time, feedback is given according to the opening of the control valve, so that the valve position can be positioned correctly according to the control signal output by the system. The three components of air source treatment include air pressure reducing valve, filter and oil mist. The pressure relief valve can regulate the pressure of the gas source, make the gas source in a steady state, and reduce the damage to the valve or actuator when the pressure of the gas source changes abruptly. The filter is used to clean the air source. It can filter the water in the compressed air and avoid the water entering the device with the gas. The oil mist can lubricate the moving parts of the body, which greatly prolongs the service life of the body. Clutch valve reducer This reducer is used in conjunction with pneumatic device for 90 degree opening of valve to realize pneumatic or manual operation. The bottom of the reducer is connected with the valve, the support surface is connected with the cylinder, the valve shaft and the worm wheel inner hole are matched through, and the valve shaft end is matched with the cylinder inner hole. Work process: Lift the limit pin, rotate the eccentric device 180 degrees, so that the worm and worm gear are separated from meshing, when ventilated, the cylinder drives the valve shaft and worm wheel to rotate together to achieve pneumatic; Lift the limit pin, reverse rotation eccentric device, worm and worm wheel mesh, manually rotate the handwheel, drive the valve shaft to rotate, cylinder piston also follow.
