This single-pole single-throw (SPST) vacuum switch is factory-set to trip at -

150 PSI pressure rating meets the requirements for high-pressure industrial steam processes

it is recommended to maintain the factory lead length and use HVAC wire management clips to secure any excess away from high-heat surfaces to prevent insulation damage

The inlet and outlet are clearly marked to ensure proper 2 1/8" ODS piping alignment for effective vapor-liquid separation

providing flexible installation options

Siemens Building Technology 599-03183 Valve Refrigerant This single-pole single-throw (SPST) vacuumThe Siemens 599 03183 is a heavy duty 1 2 inch 2 way globe valve engineered for precise modulating control in demanding HVAC automation systems. Built with a rugged bronze body (UNS CA 844) and durable brass trim, this normally closed valve is a staple for contractors managing saturated steam, hot water, or chilled water applications. Featuring an equal percentage flow characteristic and a 4. 0 Cv rating, it ensures stable and accurate thermal