Butterfly valve is a disc type open and close reciprocating rotary 90 ° Left and right to open, close or regulate the flow of a medium valve
The door. Butterfly valve is not only simple in structure, small in volume, light in weight, low in material consumption, small in installation size, small in driving torque
It is easy and quick to operate, and has good flow regulation function and closing sealing characteristics at the same time. The butterfly valve does not work
Is an automatic valve, its opening and closing need to install transmission device, with manual operation to complete. What are the transmission modes of butterfly valve?
Common butterfly valve transmission methods are: handle, worm gear, electric, pneumatic. Let’s talk about it one by one.
Handle butterfly valve: the handle is installed on the butterfly valve. By pulling the handle, the opening and closing of the butterfly plate can be controlled, and the pulling angle can be adjusted
The degree is 0 ~ 90 °。 Handle butterfly valve is greatly affected by diameter and pressure, and can only be used for pressure ≤ PN16, diameter ≤ PN16
In the pipeline of ≤ DN200. The price of handle butterfly valve is the cheapest among these transmission modes.
Worm gear butterfly valve: a butterfly valve with a wide range of applications. The worm gear head is installed on the butterfly valve and driven by the worm gear
To control the opening and closing of butterfly valve, the worm gear drive controls the opening and closing of butterfly plate by turning the hand wheel and driven by the gearbox gear
Open and close. The worm gear butterfly valve is not limited by the diameter and pressure, as small as DN50, on the pipeline with diameter more than 1m,
Can use worm butterfly valve. Worm gear butterfly valve can also be used in medium and high pressure pipeline.
Electric butterfly valve: the butterfly valve is equipped with an electric actuator. The switch of the butterfly valve is driven by electricity, and the electric butterfly valve is equipped with
It is easy to operate and realize remote control. The opening and closing speed of the electric butterfly valve can be adjusted. The structure is simple and easy to maintain. It can be used to control air, water, steam, various corrosive media, mud, oil and liquid gold
It belongs to the flow of various types of fluid such as radioactive medium and radioactive medium.
Pneumatic butterfly valve: air is inhaled through the pneumatic actuator, and the air is compressed, and then the compressed air is used as the driving force
The force source drives the valve stem to drive the disc-shaped butterfly plate to rotate around the axis of the valve stem, and the rotation angle is 0-90?. When the butterfly plate
Rotate 90 from initial position ° The valve is opened to close or closed to open. Pneumatic butterfly valve actuator is divided into single acting
And double action form, double action for ventilation on, ventilation off! The single acting actuator has the function of spring return,
It can be automatically closed or opened in case of gas or power failure, with high safety factor!
Decho is a professional supplier of butterfly valves, if you need any for your project, pls contact us by e-mail [email protected]