Imported Gas Pressure Reducing Valve

Germany VordWODEImported gas reducing valves are suitable for operating temperatures ≤150Gases such as air, oxygen, coal gas, and liquefied gas in pipelines at temperatures of °C. This reducing valve, through the throttling of the opening and closing parts, reduces the inlet pressure to a certain required outlet pressure, and utilizes the energy of the medium itself to automatically meet the preset pressure requirements after the valve, suitable for the requirements of the working conditions. The difference between the inlet and outlet pressures of this valve must be ≥0.15MPa。

Imported Gas Pressure Reducing Valve Structural Description and Operating Principle

lThis valve consists of two parts: the main valve and the guide valve. The lower part of the main valve body features a bottom cover, a main valve spring, and a main valve disc, which is supported by the main valve spring to maintain a sealed state. The upper part of the main valve body contains a piston and cylinder sleeve; when the piston is subjected to medium pressure, it is guided by the cylinder sleeve to push the main valve disc, opening the valve. The guide valve body contains a guide valve spring, a guide valve disc, and a diaphragm, with the guide valve spring supporting the guide valve disc to keep it sealed. The upper cover of the guide valve contains an adjusting spring and a adjusting bolt, facilitating the adjustment of the required working pressure.

2At the time of manufacture, the main valve and the guide valve are closed. When in use, rotate the adjustment bolt clockwise to lift the guide valve disc, allowing the medium to pass through.a"Flow through the guide valve cavity"S"Through medium pressure, the piston is pushed, causing the main valve disc to open, allowing the medium to flow towards the valve outlet, while at the same time..."B"The flow enters the diaphragm cavity below the valve. When the pressure after the valve exceeds the set pressure, it pushes the diaphragm to compress the adjusting spring, causing the guide valve to gradually close. This reduces the inflow of medium to the top of the piston, causing the piston to rise. Under the action of the main valve spring, the main valve disc also gradually closes."AFlow chamberBReduced cavity medium, pressure drop after the valve, even the slightest change in the post-valve pressure affects the balance of the diaphragm and the regulating spring, causing the diaphragm to move up and down. This movement drives the pilot valve and piston, controlling the main valve's up and down movement to regulate the medium flow rate, thus maintaining a stable post-valve pressure.

Imported Gas Pressure Reducing Valve Main Technical Parameters and Performance Indicators

Nominal Pressure(Mpa)：1.6-32MpaExport pressure is adjusted as required.0.1~32MPaAdjustment

Specification Diameter:DN15-DN500mm

Valve body, valve cover, bottom cover material:WCB/304、316Stainless steel

Valve Seat, Valve Disc:304、316Stainless Steel

Cylinder Liner: Stainless Steel

Piston:Copper Alloys/Copper Alloys

Piston Rings: Alloy Cast Iron/Linear Low-Density Polyethylene (LLDPE)

Guide valve seat, guide valve stem:Stainless Steel

Diaphragm:1Cr18Ni9Ti

Main valve, guide valve spring:50CrVA

Adjustable Spring:60Si2Mn

Seal: Rubber/PTFE (Polytetrafluoroethylene)

Guide valve body, guide valve cover:25/304

Material specifications must be stated when ordering for oxygen service.

Note: For detailed size information, please contact our sales department.

    Adjust the export pressure by simply rotating the adjustment bolt at the top of the valve.