ARI® SAFE P 35.921 Proportional Lift Safety Valve PN40 DN25
Staged pressure relief prevents system shock and extends equipment life.
ARI® SAFE P 35.921 Safety Valve relieves excess pressure progressively in steam and gas lines, protecting your system. In addition, its flanged connection allows straightforward installation. The 1.0619+N cast steel body and stainless steel internals offer high corrosion resistance. Furthermore, a maximum working temperature of 450°C supports reliable operation in demanding industrial processes.
The proportional lift principle opens the valve gradually once system pressure exceeds the set value. Moreover, it delivers finer pressure control compared with sudden full opening. Consequently, this prevents shock in the system and achieves balanced discharge. As a result, equipment life is extended and maintenance costs are reduced. The disc is made of 1.4571 (AISI 316Ti) stainless steel.
ARI® SAFE P 35.921 Safety Valve — Technical Specifications
This safety valve is widely used in steam installations, power plants and the chemical industry. In particular, it protects boiler lines against overpressure. Furthermore, it is ideal for pressure control in hot water and steam circuits within HVAC systems. Additionally, it provides a safety solution in industrial fluid lines.
Key Advantages
- Proportional lift ensures precise pressure control and shock-free discharge
- 1.4571 (AISI 316Ti) stainless steel disc provides high corrosion resistance
- PN40 pressure class and 450°C temperature tolerance for safe operation in demanding conditions
Applications
- Steam installations: pressure safety in boilers, steam lines and condensate systems
- Power plants: safety control in high-temperature and high-pressure lines
- Chemical and petrochemical industry: safety in process lines with aggressive fluids
In conclusion, the ARI® SAFE P 35.921 Safety Valve is indispensable equipment for industrial facilities, thanks to its high safety standards and durable material construction. ORFA supplies worldwide and provides technical support. Contact us for orders and technical assistance.
ORFA INDUSTRIAL PRODUCTS INDUSTRY AND TRADE INC.
Your Reliable Partner in Industrial Flow Technologies

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