ARI SAFE P 12.921 Proportional Lift Safety Valve PN16 DN65
Protects boilers and pressure vessels with gradual, controlled discharge instead of sudden bursts.
The ARI SAFE P 12.921 Safety Valve provides controlled, dependable pressure relief in industrial plants. In addition, its proportional lift principle prevents sudden blow-offs and lowers system pressure gradually. Therefore, it delivers critical safety in steam boilers and pressure vessels. Moreover, the flanged connection simplifies installation.
The body and cover are made of EN-JL1040 cast iron, while the internal parts use 1.4021+QT (AISI 420) stainless steel for high corrosion resistance. The seat is 1.4571 (AISI 316Ti) and the disc is 1.4122 (AISI 420) stainless steel, ensuring long service life. Furthermore, the FDSiCr/51CrV4 spring mechanism responds precisely. It operates at PN16 with a maximum temperature of 300°C.
ARI SAFE P 12.921 Safety Valve — Technical Specifications
This valve is widely used in steam boilers and petrochemical plants. It also serves as critical safety equipment in power generation facilities and refineries. In particular, it provides reliable relief in water, steam and gas lines. Furthermore, it offers effective solutions in HVAC and industrial heating systems.
Key Advantages
- Proportional lift prevents sudden pressure discharge and improves system safety
- Stainless steel internals and spring mechanism ensure long life and precise operation
- PN16 rating and 300°C maximum temperature withstand demanding conditions
Applications
- Steam boilers and pressure vessel systems
- Petrochemical and chemical industry process safety
- Power generation plants and refinery high-pressure lines
In conclusion, the ARI SAFE P 12.921 Safety Valve is ideal for reliable pressure management in industrial plants. ORFA Industrial has supplied this product as an authorized distributor since 1985. ORFA supplies worldwide and provides technical support.
ORFA INDUSTRIAL PRODUCTS INDUSTRY AND TRADE INC.
Your Reliable Partner in Industrial Flow Technologies

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