In the world of panelas de pressão, the pressure regulator valve is one of the most critical safety and performance aspects. It determines not just how well your food is evenly cooked but also how safely the cooker operates at high pressure.
Having been a stainless steel pressure cooker manufacturer for commercials, Linkton is well aware that precision engineering of the pressure valve directly affects cooking performance, product longevity, and user safety. This article will take you through the working principles, chief functions, types, and maintenance tips for the valve.
Core Functions of the Pressure Regulator Valve
Pressure Regulation and Control
Set Working Pressure: The valve maintains internal pressure within a preset range (typically 50–100 kPa) through its own weight or spring tension.
Automatic Pressure Release: When the pressure exceeds the safe limit, the valve automatically lifts to release excess steam.
Stable Operation: Through intermittent venting, it maintains a dynamic pressure balance for consistent cooking performance.
Cooking Performance Enhancement
Temperature Control: At the set pressure, the valve stabilizes the internal steam temperature between 100–121°C.
Time Efficiency: High-pressure environments shorten cooking time by up to 70%.
Nutrient Preservation: Shorter cooking cycles help retain vitamins and minerals more effectively.
Safety Protection
Overpressure Prevention: Releases pressure before it reaches a hazardous level.
Dual Safety System: Works in coordination with the safety valve to form a double protection mechanism.
Three Main Types of Pressure Regulating Valves
| Type | Princípio de funcionamento | Application Scenario | Caraterísticas |
| Weighted | Uses a counterweight to control pressure | Traditional stove top models | Simple structure/Manual adjustment required |
| SpringLoaded | Uses spring tension to control valve | Modern universal models | Precise pressure/Long service life |
| Magnético | Uses magnetic materials to control valve position | Electric pressure cookers | Responsive/Excellent sealing |
Technical Specifications to Know
Working Pressure: Usually engraved on the valve body (e.g., 80 kPa).
Steam Release Rate: The amount of steam released per minute (g/min).
Cycle Life: High-quality valves (such as Linkton’s spring type) exceed 100,000 cycles.
Accuracy Class: Class A ±3 kPa, Class B ±5 kPa (per national standard GB15066).
Installation and Usage Guidelines
Proper Installation
- Ensure the valve seat is clean and free of food residues.
- Install vertically for smooth operation.
- Always match the valve model with your cooker type—different models are not interchangeable.
Usage Notes
- Keep the exhaust vent clear; avoid immersing the valve in foam or soup.
- During operation, you should hear a rhythmic hissing sound.
- Never add extra weights or block the valve manually.
Troubleshooting Common Issues
- No Steam Release: Turn off the heat immediately; allow cooling and clean the valve.
- Continuous Steam Release: Lower the heat slightly.
- Food Splattering: Clean the valve and reduce the food quantity.
Daily Maintenance Guide
Cleaning and Care
- Rinse the valve with hot water after each use.
- Soak in white vinegar weekly to remove scale buildup.
- Check the flexibility of moving parts regularly.
Ciclo de substituição recomendado
Weighted: 3–5 years. Inspect for wear.
Springloaded: 5–8 years. Check spring tension.
Magnético: 23 years. Monitor magnetic strength
Storage Tips
- Store the valve separately to avoid pressure deformation.
- Keep in a dry environment to prevent rust.
- Avoid contact with corrosive chemicals.
Brand Comparison
| Marca | Technical Features | Working Pressure | Accuracy Control |
| Liantong | Dualchannel pressure design | 80 kPa | ±2 kPa |
| Fissler | Constant pressure microadjustment | 90 kPa | ±3 kPa |
| WMF | Tripleseal structure | 85 kPa | ±4 kPa |
| Generic | Standard spring pressure regulation | 70 kPa | Dual-channel pressure design |
Frequently Asked Questions About Pressure Regulator Valve
Q1: Why should I replace the pressure regulating valve regularly?
A: Long-term use causes spring fatigue and seal aging, which affects pressure accuracy and safety.
Q2: Can I adjust the pressure manually?
A: Never. Pressure settings are precisely calibrated; manual modification can create serious safety risks.
Q3: Can I use valves from different brands interchangeably?
A: No. Each brand’s parameters and interface dimensions differ, making them incompatible.
Technological Innovations in Modern Valves
Smart Pressure Control: Sensors and microprocessors ensure real-time precision adjustment.
Self-Cleaning Design: Prevents clogging from food residues.
Visual Indicators: Displays real-time pressure levels.
Wireless Monitoring: Connects via Bluetooth to mobile apps for status tracking.
Conclusão
O pressure regulating valve may be small, but its importance in panela de pressão safety and performance cannot be overstated.
- Always choose high-precision valves from reliable manufacturers.
- Perform regular inspection and cleaning.
- Follow all operating guidelines to ensure safe use for decades.
Em Linkton, we combine over 25 years of stainless steel pressure cooker expertise with advanced valve engineering to ensure consistent performance, long lifespan, and ultimate user safety.
Data sources:
- GB15066-2020 National Pressure Cooker Safety Standard
- National Pressure Cooker Quality Inspection Report
- ASME BPVC International Pressure Vessel Safety Code
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