Main Classifications and Characteristics
1. Piston-type Pressure Regulator
• Robust structure, high pressure resistance, and temperature difference resistance
• Moderate pressure regulation accuracy, suitable for steam, high temperature and high pressure conditions
• Commonly used: boiler steam, heating network
2. Diaphragm-type Pressure Regulator
• High sensitivity, good pressure regulation accuracy, and excellent sealing performance
• Suitable for tap water, compressed air, and low-pressure gases
• Simple maintenance, commonly used in civil and water supply and drainage systems
3. Pilot-operated Pressure Regulator
• Main valve + pilot control, large pressure reduction range, and extremely high pressure regulation accuracy
• First choice for large diameter, high flow, and high pressure conditions
• Widely used in industrial pipelines and centralized gas supply systems
4. Proportional Pressure Regulator
• Fixed pressure reduction ratio, simple structure, maintenance-free
• Commonly used in building water supply and drainage and fire water supply
Core Parameters
• Nominal Diameter: DN15～DN600
• Nominal Pressure: PN16, PN25, PN40, Class150/300
• Applicable Temperature: Ambient temperature ~ 350℃ (High-temperature resistant for steam)
• Valve Body Material: Cast iron, cast steel, 304/316L stainless steel, copper alloy
• Connection Method: Flange, threaded, welded
Main Advantages
1. Automatically maintains constant downstream pressure with minimal pressure fluctuations
2. Throttling and pressure reduction, protecting valves, instruments, heat exchangers, and pipelines
3. Reduces energy consumption and stabilizes production process conditions
4. Multiple models available, suitable for low-pressure, high-pressure, high-temperature, and gas/liquid scenarios
Application Conditions
• HVAC: Steam pipelines, pressure reduction and stabilization in heat exchange stations
• Water Supply and Drainage: Residential buildings, fire pipelines, industrial circulating water
• Pneumatic Systems: Air compressors, nitrogen, compressed air pipelines
• Chemical and Petrochemical Industries: Process pipelines, pressure reduction for corrosive fluids
• Energy Equipment: Boiler accessories, gas transmission pressure stabilization
