Industrial Safety Valve Manufacturer: Selection and Installation Guidelines
Safety valves serve as the ultimate safety barrier for piping systems and pressure vessels. When system pressure exceeds the preset limit, the safety valve automatically opens to relieve pressure, preventing equipment explosion due to overpressure. In high-pressure systems such as petrochemicals, power generation, and boilers, safety valves are legally mandated core safety accessories that require regular inspection and maintenance.
How Safety Valves Work
During normal system operation, the spring force (or weight force) is greater than the medium pressure, keeping the disc tightly closed. When the system pressure rises above the set pressure, the medium force overcomes the spring force, pushing the disc open to release excess medium. Once the system pressure returns to a safe range, the spring force causes the disc to automatically reseat and close.
1. Spring Full-Lift Safety Valves
Featuring a large discharge capacity, these valves are ideal for gas and steam systems.
Specifications: Nominal Diameter DN15-DN200, Pressure PN10-PN320, Set Pressure 0.1-32MPa.
2. Spring Low-Lift Safety ValvesWith a smaller discharge capacity, these valves are suitable for liquid systems.Specifications: Nominal Diameter DN15-DN100, Pressure PN10-PN160, Set Pressure 0.1-16MPa.
3. Balanced Bellows Safety ValvesEquipped with a balanced bellows structure, these valves effectively minimize the impact of backpressure fluctuations on the set pressure.Specifications: Nominal Diameter DN25-DN150, specifically designed for complex systems with backpressure variations.
4. Cooling-Fin Safety Valves
Fitted with cooling fins on the bonnet to effectively reduce the temperature in the spring chamber, making them suitable for high-temperature media applications.
Specifications: Nominal Diameter DN25-DN150, capable of withstanding temperatures up to 500℃.
Frequently Asked Questions (FAQ)
Q1: Do safety valves need to be calibrated annually?Yes. According to special equipment safety management regulations, safety valves typically require calibration at least once a year. Calibration should be performed by qualified inspection agencies. Like Valve can assist global customers in arranging third-party calibration services that comply with local standards.
Q2: How is the set pressure of a safety valve determined?
Generally, the set pressure of a safety valve is 1.05 to 1.1 times the system design pressure and must not exceed the vessel's design pressure. The specific value needs to be determined based on the actual operating characteristics of the system and relevant engineering standards. We recommend consulting our professional engineers for technical support.
Q3: Can safety valves be installed in series or parallel?
To meet higher discharge capacity requirements, safety valves can be installed in parallel. However, installing them in series is generally not recommended. If series configuration is strictly necessary for special conditions, rigorous professional design and calculations must be conducted. The Like Valve technical team can provide customized safety valve piping configuration solutions for customers.
Conclusion
This concludes our comprehensive introduction to industrial safety valve manufacturers. As a professional industrial valve manufacturer, Like Valve has always adhered to the philosophy of "Precision Manufacturing · Quality First," providing global customers with premium valve products and expert technical services.
If you have further questions about our safety valve products, or if you require product quotations and technical selection support, please feel free to contact us through the Like Valve official website or by phone. We look forward to serving you wholeheartedly.
LIKE Valves(TianJin) Co.,Ltd
Web: www.likvchina.com
Telephone：+86-22--88526609
Email：sales3@likevalves.com
