including dairy products

Durable Thermostatic Element: Designed for high-cycle environments in both residential and commercial applications

which is critical for opening the valve during high-vacuum evacuation or in the event of a power failure to prevent system downtime

It is factory-calibrated to 25 PSI Open and 80 PSI Close to ensure consistent protection without the risk of field tampering

Manual Reset Safety: Featuring a manual reset mechanism that prevents automatic cycling

Siemens Building Technology 331-4510 Actuator R-448A including dairy productsThe Siemens 331 4510 is a heavy duty No. 3 pneumatic damper actuator designed for reliable, modular, or two position control of HVAC dampers and air valves. Built with a rugged, metal fabricated housing, this pneumatic actuator features an ozone resistant rolling rubber diaphragm that ensures consistent performance in demanding mechanical environments. It operates with a 5 to 10 psi nominal spring range and delivers a precise 2 3 8 inch stroke for