Oxygen Pressure Reducing Valve

The high pressure chamber of the oxygen pressure reducing valve is connected to the cylinder and the low pressure chamber is the gas outlet and leads to the use system. The high pressure gauge indicates the pressure of the gas stored in the cylinder. The outlet pressure of the low pressure gauge can be controlled by the adjusting screw. When in use, first open the cylinder main switch, then turn the low pressure gauge pressure adjusting screw clockwise, so that it compresses the main spring and drives the membrane, spring pads and the top lever and opens the valve.

Technical Specifications

The operation of the oxygen pressure reducing valve is controlled by the pressure behind the valve. When the pressure sensor detects that the valve pressure indication rises, the opening of the pressure reducing valve valve decreases; when the pressure after the pressure reducing valve is detected to decrease, the opening of the pressure reducing valve valve increases to meet the control requirements. This type of valve in the pipeline should generally be installed horizontally. Suitable for water, steam, air media pipeline.

Customized processing

Yes

Connection

Weld

Material

Applicable Medium

Pressure Environment

Atmospheric

Operating Temperature

Ordinary Temperatures

Flow Direction

Commutation

Driving Method

Steam

Morphological

Corkscrew

Type

Straight-through

Sealing Form

Hard Seal

Sealing Form

Performance Parameters:

The high pressure chamber of the oxygen pressure reducing valve is connected to the cylinder and the low pressure chamber is the gas outlet and leads to the use system. The indication value of the high pressure gauge is the pressure of the gas stored in the cylinder. The outlet pressure of the low pressure gauge can be controlled by the adjusting screw.
When in use, first open the cylinder main switch, and then turn the low pressure gauge pressure adjustment screw clockwise, so that it compresses the main spring and drive the membrane, spring pads and the top rod and open the valve. In this way, the imported high-pressure gas enters into the low-pressure chamber by throttling and depressurization in the high-pressure chamber, and leads to the working system through the outlet. Turn the adjusting screw to change the height of the valve opening, so as to adjust the amount of high-pressure gas through and reach the required pressure value.
Pressure reducing valves are equipped with a safety valve. It is a device to protect the pressure reducing valve and make it safe to use, and it is also a signaling device for the malfunction of the pressure reducing valve. If the outlet pressure rises on its own and exceeds a certain permissible value due to valve gasket, valve damage or other reasons, the safety valve will automatically open to exhaust.

Method Of Use:

There are many specifications for oxygen pressure reducing valves according to the different requirements for use. The highest inlet pressure is mostly, the lowest inlet pressure is not less than 2.5 times of the outlet pressure. Outlet pressure specifications are more, generally, the highest outlet pressure is.
When installing a pressure reducing valve, it should be determined whether its connection specifications are consistent with the cylinder and the connectors of the system in use. Pressure reducing valve and cylinder with hemispherical connection, by tightening the nut to make the two coincide. Therefore, the two hemispherical surfaces should be kept polished to ensure good gas tightness when in use. High pressure gas can be used to blow away dust before installation. If necessary, materials such as PTFE can also be used as a gasket.
Oxygen pressure reducing valve should be strictly prohibited from contacting grease to avoid fire accident.
When stop working, the pressure reducing valve should be released, and then loosen the adjusting screw to avoid long time pressure deformation of the elastic element.
The pressure reducing valve should avoid impact and vibration, and should not be in contact with corrosive substances.

Technical Parameters And Performance Indicators：

Nominal Pressure(MPa)	1.6	2.5	4.0	6.4	10.0	16.0
Crusting Test Pressure(MPa)	2.4	3.75	6.0	9.6	15.0	24
Seal Test Pressure(MPa)	1.6	2.5	4.0	6.4	10.0	16.0
Maximum Inlet Pressure(MPa)	1.6	2.5	4.0	6.4	10.0	16.0
Outlet Pressure Range(MPa)	1.0 to 1.0	0.1 to 1.6	0.1 to 2.5	0.5 to 3.5	0.5 to 35	0.5 to 45
Pressure Characteristic Deviation(MPa)ΔP2P	GB12246-1989
Flow Rate Characteristic Deviation(MPa)ΔP2G	GB12246-1989
Minimum Differential Pressure(MPa)	0.15	0.15	0.2	0.4	0.8	1.0
Permeability	GB12245-1989

Overall Dimensions (1.6-4.0 mm) :

Nominal Diameter(DN)	外形尺寸
	L		H	H1
	1.6/2.5MPa	4.0MPa	H	H1
15	160	180	295	90
20	160	180	330	98
25	180	200	330	110
32	200	220	330	110
40	220	240	345	125
50	250	270	345	125
65	280	300	350	130
80	310	330	385	160
100	350	380	385	170
125	400	450	400	200
150	450	500	415	210
200	500	550	475	240

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Oxygen Pressure Reducing Valve