TOSACA

Welcome to Tosaca world

TOSACA is the specialist manufacturer of safety relief valves with a complete range of the size DN15-400 (½ to 20″), rating PN16-100 (class150-2500), and all types of materials such as nodular, carbon steel, low temperature carbon steel, stainless steel, Inconel, Duplex, SuperDuplex and special coating in ECTFE/Halar/Niflon.

All TOSACA safety relief valves are designed, manufactured and certified according CE/ASME regulations. The products comply with the Pressure Equipment Directives 2014/68/EU and ATEX 2014/34/EU, as well as with the regulations in force for each of the sectors and corresponding applications. They are designed and manufactured under strict quality control ISO 9001: 2015.

OPERATION

TOSACA safety relief valves are a direct spring-loaded suitable for gas, liquid and steam service. The seat can be metal-metal, PTFE or Viton. The safety valves are set at ambient temperature.

Backpressure 10%. If backpressure is >10% of set pressure, then you must put bellows. The allowable tolerances or limits as applicable on the operating characteristics are as follows:

• Set pressure: +- 3% of set pressure. The operating pressure should not exceed 90% of set pressure.
• Lift: not lower than the value specified by the manufacturer.
• Overpressure: Compressible fluids: 10%, Incompressible fluids: 25%, Fire case: 21%
• Blowdown: not greater than the value stated by the TOSACA, but within the following limits: Compressible fluids: minimum 7% maximum 10%, Incompressible fluids: minimum: 7% maximum: 20%