is a heavy-duty automatic air vent designed for high-performance air management in hydronic heating systems and low-pressure steam applications

reducing the risk of shaft galling and ensuring stable operation under industrial torque loads

making it an essential component for commercial refrigeration and industrial chiller plant safety

Efficient Heat Transfer: The bi-metal connections allow for fast soldering without the need for extensive wet-wrapping

the 30-inch lead length provides ample slack for proper routing away from high-heat zones

Siemens Building Technology 599-03166 Valve 318973-401 is a heavy-duty automatic airThe Siemens 599 03166 is a heavy duty Flowrite 599 Series globe valve designed for high performance control of hot water, chilled water, saturated steam, and 50% water glycol solutions. As a 3 4 inch NPT 2 way normally open valve, it features an equal percentage flow characteristic that ensures precise linear thermal capacity control in demanding HVACR applications. Built with a rugged UNS CA 844 bronze body and durable brass trim, this unit is rated