Description
1. Overview of Gas Pressure Reducing Valve
The VTON gas pressure reducing valve is crafted with a cast steel body, making it suitable for regulating gases such as air, nitrogen, oxygen, hydrogen, helium, argon, and natural gas. Its design incorporates a spring pressure adjustment mechanism and a diaphragm for sensing outlet pressure changes. The pilot valve drives the piston to adjust the main valve’s flow area, enabling precise pressure reduction and stabilization.
The valve maintains constant outlet pressure within a predefined range, even with varying inlet pressures, making it an essential component for industrial gas systems.
2. Key Features
- Compressed Air Application: Designed for use in compressed air pipeline systems.
- Pilot Piston Design: Consists of a main valve (valve seat, piston, spring) and a pilot valve (diaphragm, valve disc, regulating spring) for accurate control.
- Pressure Regulation: Adjusts outlet pressure using a spring mechanism and diaphragm, ensuring stable pressure output despite fluctuating inlet pressure.
3. Technical Specifications
| Parameter | Value |
|---|---|
| Nominal Pressure (MPa): | 1.6 – 16.0 |
| Shell Test Pressure (MPa): | 2.4 – 24 |
| Sealing Test Pressure (MPa): | 1.6 – 16.0 |
| Maximum Inlet Pressure (MPa): | 1.6 – 16.0 |
| Outlet Pressure Range (MPa): | 0.1 – 4.5 |
| Pressure Characteristic Deviation (MPa): | ANSI2365, GB12246-1989 |
| Flow Characteristic Deviation (MPa): | ANSI3568, GB12246-1989 |
| Minimum Pressure Difference (MPa): | 0.15 – 1.0 |
| Leakage Rate: | O (PTFE/Rubber), Y (Hard Seal): ANSI6863 |
| Manufacturing Standard: | VTON |
4. Materials
| Component | Material |
|---|---|
| Body & Cover: | WCB/FCB |
| Valve Seat & Disc: | 2Cr13/304 |
| Piston & Cylinder Sleeve: | 2Cr13/Copper Alloy/304 |
| Pilot Valve Rod & Seat: | 2Cr13/304 |
| Diaphragm: | 1Cr18Ni9Ti |
| Springs: | 50CrVA, 60Si2Mn |
| Sealing Gasket: | Rubber/PTFE/Hard Alloy |
