Caleffi Safety Relief Valve

The Caleffi 311431 Safety Relief Valve is engineered for dependable overpressure protection in heating and hydronic systems. Designed with high-quality materials and certified to the NF P 52-001 Class 2 standard, it ensures stable operation, reliable discharge performance, and long-term system safety.

Manufacturer: Caleffi
Type: Safety relief valve
Part No.: 311431
Bar code: 8016615003543
Code: 1518

Technical Information

• Working Pressure: 3 bar
• Connection: G1/2
• Medium temperature range: 5 to 110 °C
• Maximum discharge rating: 100 kW
• Nominal pressure: 3.6 bar
• Discharge overpressure: 20 %
• Closing differential: 15 %
• Certified to: NF P 52-001 standard – Class 2

Recommendation: This model is ideal for installers and system operators seeking a highly reliable safety component for boilers, closed-loop circuits, and thermal systems. Its precise pressure control, high discharge efficiency, and strong certification rating make it a preferred choice for both residential and industrial applications. Choosing this valve ensures maximum protection, reduced maintenance needs, and increased system longevity.