Price and product recommendation of gas pressure regulating valve

The gas pressure regulating valve is a decompression tool. So how much do you know about the price of gas pressure regulating valve? Today, Bian Xiao will introduce several different gas pressure regulating valves and their prices. I also hope that through the brief introduction of Bian Xiao, we can have a further understanding of the gas pressure regulating valve and its price. Of course, I also hope that it will be helpful for everyone to choose and buy.

Function:

What is the filter pressure regulating valve used for?

decompress

The pneumatic valve positioner is designed and operated according to the principle of force balance, and its working principle block diagram is shown in the above figure. It is designed and operated according to the principle of force balance.

As mentioned above, when the signal pressure sent into the bellows increases, the lever 2 rotates around the fulcrum and the baffle is close to the nozzle. After the nozzle back pressure is amplified by the amplifier, it is sent to the air chamber of the thin film actuator, so that the valve stem moves down and drives the feedback lever (swing lever) to rotate around the fulcrum, and the feedback cam (eccentric cam) connected to the same shaft also rotates counterclockwise. The lever 1 rotates around the fulcrum by the roller, and the feedback spring is stretched and applied to the lever 2. At this time, a certain signal pressure corresponds to a certain valve position.

The above mode of action is positive. If you want to change the action mode, just flip the cam, and the direction A will become the direction B, and so on.

The so-called positive-acting positioner means that the signal pressure increases and the output pressure also increases; The so-called reaction positioner means that the signal pressure increases and the output pressure decreases.

As long as the forward actuator is equipped with a reaction positioner, the action of the reaction actuator can be realized; On the contrary, as long as the reaction actuator is equipped with a reaction positioner, the action of the positive actuator can be realized. ? Related websites (with photos)? Regulating valve usually consists of electric actuator or pneumatic actuator and valve body. There are two types of straight stroke: straight single-seat type and straight double-seat type. The latter has the characteristics of large circulation capacity, small imbalance and stable operation, and is usually especially suitable for occasions with large flow, high pressure drop and less leakage. The angular travel mainly includes: V-type electric regulating ball valve, electric butterfly valve, ventilation regulating valve, eccentric butterfly valve and so on.

Working principle:

The pressure valve can basically be said to be a pressure reducing valve. The working principle of the pressure reducing valve is as follows:

High-pressure medium is filled into a relatively large cavity through a small hole to realize decompression. In fact, decompression is achieved through river closure. One side of the diaphragm or piston is the outlet chamber, and the other side is the artificial pressure. The valve rod controlling the size of the orifice is connected with the diaphragm (piston), so that as long as a fixed pressure is given, the pressure of the outlet chamber will always be equal to this pressure. It is believed that a given pressure can be provided by a spring, an air source or a hydraulic source.

Paragraph 1: gas pressure regulating valve with explosion-proof device

First of all, Bian Xiao introduced the first gas pressure regulating valve with explosion-proof device. Thick zinc alloy valve body is adopted, and high-temperature painting process is adopted, so the appearance is particularly exquisite, and the paint will not fall off even after long-term use. At the same time, it also adopts the design of thickened all-copper handwheel, which is particularly accurate in thread, convenient to install and long in service life. It also has a high-end LPG pressure gauge made of copper, which can accurately display the air pressure in the bottle. Then the reference price of this kind of gas pressure regulating valve with explosion-proof device is around 60 yuan.

Paragraph 2: Crown gas pressure regulating valve

Next, this is the crown gas pressure regulating valve. Imported copper mesh is adopted, which has stable and reliable quality and is more durable. At the same time, it can effectively filter some impurities in the gas, enhance its service life and make the gas in the gas stove burn more fully. It is also equipped with advanced sealing collar, which has a good sealing degree. The valve body of his pressure reducing valve adopts stainless steel thread design, which has the advantage of corrosion resistance. It is particularly safe to use. The reference price of this Crown gas control valve is around 80 yuan.

Paragraph 3: MADAS gas pressure regulating valve

Finally, this model introduced by Bian Xiao is the MADAS gas pressure regulating valve. First of all, it uses a dual-band valve and comes with a barometer, which is particularly accurate and clear. It can automatically adjust the air pressure and is very convenient to operate. It also has a filter screen design, which can filter out some harmful substances and make it safer to burn. The reference price of this MADAS gas pressure regulating valve is about 100 yuan.

Regarding the gas pressure regulating valve and its price, Bian Xiao will give you a brief introduction here. At present, the prices of gas pressure regulating valves in the market are uneven, high and low. Bian Xiao suggested that when purchasing gas pressure regulating valves, you can consider brand gas pressure regulating valves or some reliable gas pressure regulating valves in advance. Don't be deceived Are some fake and shoddy products unsafe when used?