Main Classifications (3 Most Common Types)
1. Self-operated Pressure Regulating Valve (Most Common)
• Control: Maintains constant pressure downstream of the valve (or stabilizes pressure upstream of the valve)
• Applications: Pressure stabilization and relief for steam, gas, and liquid
• Scenarios: Heat exchange stations, gas pipelines, water supply networks
2. Self-operated Differential Pressure Regulating Valve
• Control: Maintains a constant pressure difference between two points
• Applications: Air conditioning water systems, heating, circulating water systems
3. Self-operated Temperature Regulating Valve (Thermostatic Valve)
• Automatically opens and closes based on temperature sensing by a temperature bulb
• Applications: Constant temperature control for hot water, hot oil, and heat exchange equipment
Core Advantages
• No electricity or gas required, zero energy consumption, explosion-proof safety
• Ready to use immediately after installation, no wiring or piping required
• Simple structure, extremely low failure rate
• Cost far lower than pneumatic/electric regulating valves
• Suitable for remote areas, areas without instrumentation gas, or power supply
Common Operating Conditions
• Water supply and heating pressure stabilization in residential areas/factories
• Constant pressure supply of natural gas and compressed air
• Temperature control for heat exchange stations
• Pressure stabilization for small boilers and steam equipment
• Field, remote pipeline, and instrument-less gas operations
