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1. Gas pressure reducing valve.
Under normal circumstances, the pressure of liquefied gas in the cylinder is 3 5 kilograms per square centimeter, and it can be burned on the stove after decompression, and the pressure of liquefied gas after decompression is kilograms per square centimeter will be more appropriate. Gas pressure reducing valves can be divided into two types, one is that the manufacturer has adjusted it when it leaves the factory, and it cannot be adjusted. This kind of pressure reducing valve is safer, but it is more expensive and of better quality.
And the second is self-adjustable. It has an adjustable valve that can be twisted, and can be adjusted to the left or right, which is generally used to adjust it to the mid-range position. 2. What are the precautions when installing the pressure reducing valve 1. Before installing the pressure reducing valve, the specifications and models of the pressure reducing valve should be used.
Understand clearly and see if it meets your needs. Then check the pipes and spare parts to see if there is any looseness, and check the inside of the pressure reducing valve to ensure that there is no blockage. After making sure that there are no foreign objects, we will make the connection.
2. Then, when installing the pressure reducing valve, it must be equipped with a pressure gauge.
In this way, when adjusting, we can more clearly understand whether the pressure value is in the normal range, so that it is more convenient to adjust the pressure reducing valve. And when installing the pressure reducing valve, it should be installed vertically. In the case of horizontal installation, the valve has a downward hole.
3. And if the gas pressure reducing valve fails, then it may be that there is a blockage in the pipeline, or the internal spring of the gas pressure reducing valve is out of order. At this time, it is necessary to inspect it and then carry out repairs. If repairs are not possible, replace the gas regulator with a new one.
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The flat pressure valve is generally not adjustable, and there is a hard air pressure setting on the outlet; The medium pressure valve has a knob that can be adjusted, generally the left screw to reduce the pressure, and the right screw to pressurize; The pipeline pressure valve should be prepared with accessories before it can be disassembled and adjusted, otherwise there is a danger of air leakage.
In order to facilitate operation and maintenance, the gas pressure reducing valve is generally installed upright on the horizontal pipeline. During installation, care should be taken to make the flow direction of the medium in the pipeline consistent with the direction of the arrow shown on the valve. In order to prevent overpressure behind the valve, a pressure reducing valve should be installed not less than 4m away from the valve outlet.
Extended information: The gas pressure reducing valve is to control the opening of the opening and closing parts in the valve body to adjust the flow of the medium, reduce the pressure of the medium, and at the same time adjust the opening of the opening and closing parts with the help of the pressure behind the valve, so that the pressure behind the valve is kept within a certain range, and spray cooling water in the valve body or behind the valve to reduce the temperature of the medium, this valve is called pressure reduction and desuperheating valve.
The characteristic of the gas pressure reducing valve is that in the case of changing inlet pressure, the outlet pressure and temperature value are kept within a certain range, and this type of valve should generally be installed horizontally in the pipeline.
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The white adjustable air pressure button in the middle is screwed clockwise. Gas pressure reducing valve: clockwise, that is, to tighten, this is pressurization, on the contrary, counterclockwise to loose, is to reduce pressure.
The gas pressure reducing valve uses the opening of the opening and closing parts in the control valve body to adjust the flow of the medium, reduce the pressure of the medium, and at the same time adjust the opening of the opening and closing parts with the help of the pressure behind the valve, so that the pressure behind the valve is kept within a certain range.
When installing the pressure reducing valve, do not use too much force, so that it is easy to make the pressure reducing valve and the cylinder angle valve connected too tightly and inconvenient to disassemble, the liquefied gas pressure reducing valve and the angle valve are connected by reverse buckle, the installation of the pressure reducing valve should be aligned first, rotate the handwheel in the counterclockwise direction, and tighten it by hand without air leakage.
Be careful not to disassemble, adjust or repair the pressure reducing valve yourself. If the pressure reducing valve is found to be blocked, it can be replaced with a new valve or repaired by a professional from the gas ** unit, and when replacing the cylinder and removing the pressure reducing valve, pay attention to whether the sealing ring sticks to the angle valve. If the sealing ring is accidentally taken away with the cylinder, after replacing it with a new cylinder, the pressure reducing valve without the sealing ring will inevitably leak.
Precautions: 1. The sealing ring at the front end of the pressure reducing valve of the gas tank must be carefully checked to see if it is in good condition before being used before replacing the gas. Gas cylinders should be regularly inspected at the gas supply department. Do not disassemble and repair the pressure reducing valve or bottle valve, and find a professional to deal with the problem.
2. There must be a distance of 1 to 1 meter between the gas tank and the stove. The kitchen with gas canisters should not only be well ventilated, but also should not store or use coal stoves at the same time. Don't put anything on the gas canister, and don't put the gas can down.
3 The gas is adulterated with odorants. Therefore, if you smell a foul smell, the gas may be leaking. The simple test method is to brush soapy water or laundry detergent water on the hose, the valve of the gas tank, the pressure reducing valve and other interfaces, if there are air bubbles, it means that there is a gas leak in this place.
4. When you find a gas leak, you should immediately turn off the switch of the gas tank and the stove switch, cut off the gas source, open all the doors and windows at home, run outside, do not scratch the fire or smoke, and do not turn on or off any electrical switches, so as to avoid sparks when using the power switch, and contact with the gas in the air.
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Look at the pressure! If it's not enough, just change the high-pressure valve! Sell gas canisters where they are sold.
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Pressure Reducing Valve Installation Requirements.
1.The installation of the pressure reducing valve should be carried out after the pressure test and flushing of the water supply pipe network are qualified.
2.Before installation, the pressure reducing valve should be checked: its specifications and models should be consistent with the design; The connection parts of the control pipeline outside the valve and the guide valve should not be loose; There should be no mechanical damage to the appearance and foreign matter should be removed from the valve.
3.The direction of the water flow of the pressure reducing valve should be consistent with the flow of the water supply network.
4.Filters should be installed on the inlet side, and control valves should be installed in front and behind them.
5.The adjustable pressure reducing valve should be installed horizontally, and the bonnet should be upward.
6.Proportional pressure reducing valves should be installed vertically; When installed horizontally, the orifice of the single breathing port pressure reducing valve should be downward, and the orifice of the double breathing port pressure reducing valve should be in a horizontal position.
7.When installing a pressure reducing valve without its own pressure gauge, the pressure gauge should be installed in the adjacent parts of the front and rear of it.
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It can be adjusted, the pressure gauge is a valve that can be twisted, and the pressure can be directly adjusted left and right. Household is generally medium pressure, it is best not to adjust, the hotel uses a high pressure valve can generally be adjusted. The pressure of liquefied gas in the cylinder is generally 3-5 kilograms of square centimeters, and it needs to be depressurized to burn on the stove, and the role of the pressure regulator is to play the role of decompression, reducing the pressure of liquefied gas to about kilograms of square centimeters.
The gas pressure reducing valve is to control the opening of the opening and closing parts in the valve body to adjust the flow of the medium, reduce the pressure of the medium, and at the same time adjust the opening of the opening and closing parts with the help of the pressure behind the valve, so that the pressure behind the valve is kept within a certain range, and spray cooling water in the valve body or behind the valve to reduce the temperature of the medium, this valve is called pressure reduction and desuperheating valve.
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The appropriate degree of adjustment of the pressure valve of the gas stove is to adjust the gas fire power is relatively strong, the flame is blue, if the flame is very smoke, or the red flame is the pressure valve problem, you can also see the size adjustment of the air inlet of the stove is the range, if it is appropriate, it is the best state.
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The pressure reducing valve of the gas stove has been set when it comes out, and it is best not to adjust it. If you feel that the heat is not enough, you can adjust it clockwise, whether it is pressurized and counter-phagogy, and any adjustment is decompressed. Basically seeing that the flame is blue, it's okay.
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Rotate the valve of the gas stove pressure reducing valve, clockwise is pressurized, counterclockwise is depressurizedUnder normal circumstances, the pressure of the gas tank has been adjusted in place before leaving the factory, and we do not need to change it ourselves.
If there is an abnormal phenomenon of the pressure valve, we can rotate the plug in a counterclockwise direction, until it is adjusted to the normal pressure, its surface usually comes with a pointer pressure gauge, we only need to adjust it to the green value range, if the pointer reaches the red area is a red signal.
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Don't tune it yourself, it's not safe.
The outlet pressure of the pressure reducing valve is divided into outlet static pressure and outlet dynamic pressure. Among them: outlet static pressure, which refers to the outlet pressure when the flow rate through the pressure reducing valve is zero; The outlet dynamic pressure refers to the outlet pressure when the pressure reducing valve has a flow rate passing through. >>>More
Look at your problem, it is estimated that the water pipeline, the water pressure reducing valve generally uses 200X adjustable pressure reducing valve and YB43X fixed ratio pressure reducing valve, 200X adjustable pressure reducing valve has a wide adjustable pressure range (can be as close as possible to the actual optimal use pressure) Large flow rate, easy to maintain (dismantling the valve cover can be repaired and there is a possibility of replacing parts to restore the function), but the pipeline exhaust is not good, the pipeline arrangement is irregular, and the installation orientation is not good (such as vertical installation) is easy to cause 200X vibration and noise during work, The water flow of the fixed ratio type is smooth, and the noise is very low, but the flow rate is generally small, the pressure can not be adjusted, and the maintenance is generally replaced as a whole. If necessary, we will be happy to work with you to suit your situation.
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1. First, the higher air (steam) pressure is automatically reduced to the required low gas (steam) pressure. 2. The second is: >>>More
In this case, it becomes a shut-off valve.
When the inlet pressure is higher than the set pressure, it is normally closed. >>>More