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Guangdong HongFa Valve Co., Ltd.

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4Common problem

What are the main accessories for pneumatic stainless steel ball valves?


What are the main accessories for pneumatic stainless steel ball valves?

In pneumatic technology, the three original processing components of the air filter, pressure reducing valve and oil mister are assembled together as a pneumatic triple piece, which is used to enter the air source net filter of the pneumatic instrument and decompression to the meter supply rating. The air supply pressure is equivalent to the function of the power transformer in the circuit.

Therefore, the air filter pressure reducer is light in design and easy to install, so it can be used together with pneumatic transmitters, pneumatic regulators, valve positioners and other products. If the air filter is designed as a whole in the pressure reducing valve, they are made into two pieces.

The limit of the pneumatic stainless steel ball valve is a kind of field instrument for detecting the state of the valve in the control system. It is used to open or close the valve. It is the signal output of the switch (that is, electric shock), and the controller is in the process. Accept or calculate the search, sample, and then execute the next program. This product can also be used as an important valve interlock protection in the system and its remote alarm indication.

The working principle of pneumatic stainless steel ball valve

When the pneumatic actuator is connected to the circuit and the system air supply, the air enters the A cylinder (B cylinder) through the pipe A or B pipe to push the piston to move to one end, thereby rotating the rotating shaft and the core to rotate 90°.

The top of the pneumatic actuator is linked to the visual device, and the valve is opened when the green mark points to the "ON" word.

The valve is in the open position when the green light is on, and the valve is in the closed position when the red light is on.

Positioner adjusts valve pipe flow

The valve seat adopts elastic sealing structure, which is reliable in sealing and easy to open and close.

The valve stem adopts a bottom-loaded structure with an inverted seal, and the valve stem is not impacted when the valve cavity is abnormally boosted.

The pneumatic piston actuator is made of low friction material and is made of bearing sleeve. The inner and outer surfaces of the cylinder are hard anodized and anticorrosive, which greatly improves the service life of the cylinder.