Siemens Series 599 2-Way Ball Valve, with Floating Actuator GQD221.1U 1/2″, 25 CV Flow Rate

Siemens 172L-10311 599 Series 2-way 1/2`Ball Valve is coupled with OpenAir™ actuator GQD221.1U to provide equal percentage flow control. The ball valves are 1/4-turn rotary control valves. Ball valves can control hot or chilled water and up to 50% water-glycol solution in air handling units, convectors, fan coil units, unit conditioners, radiators, and reheat coils.

Features:
· Normally Closed
· Full Port Valve without Flow Characterizer Insert
· ANSI 250 valve body rating.
· 200 psi close-off with ANSI Class IV leakage for all line sizes and actuators.
· Available with chrome-plated brass ball and brass stem or stainless steel ball and stem.
· Blow-out proof stem withstands high pressure.
· Universal mounting plate.
· Actuator and plate can be rotated (90 degree increments).
· Standoffs provide a thermal barrier between the actuator and the mounting plate.
· Operating handle for manual operation.
· Floating, Fail-in Place Actuator