Pressure Spring Application in Pressure Reducing Valves
Schematic Diagram of Pressure Spring in Pressure Reducing Valve
Application Overview
Pressure reducing valves are critical components in fluid control systems, used to reduce high inlet pressure to stable outlet pressure. As the core element of pressure reducing valves, pressure springs achieve precise pressure control through their elastic properties.
Core Functions
- Provides stable counterforce to balance fluid pressure
- Achieves precise pressure regulation and stable output
- Adapts to pressure variations under different working conditions
- Ensures system safety by preventing excessive pressure
Technical Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Spring Stiffness | 5-50 | N/mm |
| Working Pressure Range | 0.1-2.5 | MPa |
| Operating Temperature | -20 to 120 | °C |
| Service Life | >1 million | Cycles |
| Material | Stainless Steel/Alloy Steel | - |
Working Principle
In pressure reducing valves, pressure springs form dynamic balance with fluid pressure through elastic deformation to achieve precise pressure control:
Operation Process
- Initial State: Spring is pre-compressed to provide initial closing force
- Pressure Increase: Rising inlet pressure pushes valve core to compress spring
- Flow Regulation: Valve core movement changes flow area to reduce outlet pressure
- Balance Establishment: Spring force and fluid pressure reach new equilibrium
- Pressure Stabilization: Outlet pressure remains near set value
Key Characteristics
- Linear spring characteristics ensure linear pressure-displacement relationship
- High fatigue strength guarantees long-term stable operation
- Corrosion-resistant materials adapt to various working environments
- Compact design meets space constraints
Application Scenarios
Industrial Pneumatic Systems
Used for pressure control in compressed air systems to ensure stable operation of tools and equipment
Hydraulic Control Systems
Provides precise hydraulic pressure regulation in construction machinery and industrial equipment
Water Supply Systems
Prevents excessive water pressure in building plumbing systems to protect pipes and equipment
Process Control
Precisely controls process fluid pressure in chemical, pharmaceutical and other industries
