How much does the pressure reducer cost

Model: Nitrogen YQD-370 High Pressure Type 10x25, Hydrogen Y-370 High Pressure Type 10x25, Oxygen YQY High Pressure Type 10x25, Air YQK-370 High Pressure Type 10x25
Measurement range (0-10, 0-25) MPa
Rated import pressure 15MPa
Adjustment range 1-7MPa
Flow rate of 20m3/h
Input thread G5/8 "
Output thread M16x1.5
Dimensions 170x125x165
Weight 1.7Kg
Note: The air outlet is equipped with a Ø 6 copper pipe joint
Large quantities can be discounted
Piston type pressure reducing structure
The upper cover and mother body are made of high-quality forged copper
Intake pipe filter
The inner lining of the upper cover is made of special plastic material to make pressure regulation smoother and more stable
The function and classification principle of high-pressure pressure reducers
Due to the high pressure inside the gas cylinder, while the pressure required for gas welding, gas cutting, and usage points is relatively low, a pressure reducer is needed to store the stored gasThe high-pressure gas inside the bottle should be reduced to low-pressure gas, and the required working pressure should be maintained in a stable state from beginning to end. In short, the pressure regulatorIt is a regulating device that reduces high-pressure gas to low-pressure gas and maintains stable output gas pressure and flow rate.
High pressure reducers can be classified into two types: centralized and post type according to their intended use; According to different constructions, it can be divided into single-stage and two-stage types; According to different working principlesIt can be divided into two categories: positive action and negative action. At present, common domestic pressure reducers are single-stage reaction type and two-stage hybrid type (* grade is positive)There are mainly two types: action type and second level reaction type.
B, Construction and working principle of high pressure regulator
The body of the high-pressure regulator is made of brassmake. The structure of the two-stage pressure reducing system is basically similar, both consisting of valve top rodsComposed of components such as pressure regulating spring, elastic film device, pressure reducing door, etc. *The pressure reduction system is mainly used to automatically reduce high-pressure gas to high-pressure gasReduce the pressure to the actual usage pressure, and then send it to the second stage pressure reduction system. In the secondary pressure reducing system, when the pressure regulating screw is tightened, the pressure regulating spring is usedElastic film installation and valve top rod allow the pressure reducing valve to open and close to varying degrees, in order to regulate the oxygen supply to the pressure reducing systemThe degree of pressure reduction or cessation of gas supply.
The thread size at the intake joint of the high-pressure pressure reducer is 315 875mm， The inner diameter size of the joint is 5.5mm, and the inner diameter size of the outlet joint is6mm, Its maximum flow rate is 80m3/h. The pressure reducer body is also equipped with a high-pressure oxygen meter and a low-pressure oxygen meter, which respectively indicate the high-pressure chamber (i.e. oxygen)The pressure inside the gas cylinder and the low-pressure chamber (i.e. working pressure). The range of the high-pressure oxygen meter is 0-25MPa. The range of the low-pressure oxygen meter is 0-10MPa.
When using a high-pressure regulator, when the adjusting screw is turned clockwise, the pressure reducing valve can be pushed open, and high-pressure oxygen flows into the low-pressure system through the gapRoom. Due to the expansion of oxygen in the low-pressure chamber, the pressure decreases, which is known as the decompression effect.
C, Safe use of high-pressure pressure reducers
(1) The action of releasing gas from the gas cylinder or opening the pressure reducer must be slow. If the valve opens too quickly, the gas in the working part of the pressure reducer will be affectedDue to adiabatic compression, the temperature is greatly increased, which may cause parts made of organic materials such as rubber fillers, rubber film fiber pads to catch fireBurn out and may cause the pressure regulator to burn out. In addition, static sparks generated by rapid deflation and oil stains on the pressure reducer can also cause problemsThe fire burned out the parts of the pressure regulator.
(2) Precautions before installing the pressure regulator and when opening the gas cylinder valve: Before installing the pressure regulator, slightly open the oxygen cylinder valve to blow away any dirtTo prevent dust and moisture from entering the pressure regulator. When opening the gas cylinder valve, the outlet of the valve should not be aligned with the operator or others to prevent high-pressure gas from burstingRushing out and injuring someone. The joint between the outlet of the pressure reducer and the gas rubber pipe must be tightened with a wire or clamp that has been overheated; Prevent detachment after air supplydanger
(3) Precautions for loading, unloading, and operation of pressure reducers: When loading and unloading pressure reducers, attention must be paid to preventing the thread of the pipe joint from slipping, in order to avoid loose installationAnd shoot out. During the work process, it is necessary to pay attention to observing the pressure value on the work pressure gauge. When stopping work, the pressure regulator screw should be loosened first,Close the oxygen cylinder valve again and slowly release the gas inside the pressure reducer, which can protect the spring and pressure reducing valve from damage. Work is over.Afterwards, the pressure regulator should be removed from the gas cylinder and stored properly.
(4) The pressure regulator must be regularly calibrated, and the pressure gauge must be inspected regularly. This is done to ensure the reliability of the pressure regulation and the reading of the pressure gaugeaccuracy If any air leakage or malfunction of the pressure gauge needle is found during use, it should be repaired in a timely manner.
(5) Handling of pressure regulator freezing. If the pressure regulator freezes during use, use hot water or steam to thaw it, and never use flames or red flamesIron baking. After the pressure regulator is heated, any residual moisture must be blown off.
(6) The pressure regulator must be kept clean. The pressure reducer must not be contaminated with grease or dirt. If there is grease, it must be wiped clean before use.
(7) Pressure reducers and gauges for various gases must not be interchanged, such as pressure reducers for oxygen, which cannot be used in systems such as acetylene and petroleum gasIn the middle.