RI Fig.901 safety valve, specifically identified by the model number TÜV.SV.07-663-36mm 0, 8bar DN 40/65 PN16.
This is a type of pressure safety or relief valve.
- Function: A safety valve is a mechanism that automatically releases a substance (like vapor or gas) from a system, such as a boiler or pressure vessel, when the pressure exceeds preset limits. This protects the system from overpressure.
- Type: This specific valve is a full lift safety valve, which opens instantly up to its maximum lift within a small pressure rise, making them suitable for systems where sudden pressure increases may occur.
- Construction: The housing is often made of materials like cast iron or cast steel, with a primer coating.
- Specifications: The model number indicates specific technical details, such as a nominal diameter (DN) of 40/65 and a pressure rating (PN) of 16 bar.



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