Field installation is required

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

Heavy-Duty Construction: The cast iron sheave body provides superior vibration damping and durability under high-stress industrial conditions

This model serves as a direct drop-in replacement for the Bristol H22J33BABCA

This OEM replacement part provides a dedicated electrical bridge for the UVC light disinfection network

Siemens Building Technology 599-03166 Valve 318973-401 Field installation is requiredThe 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