specifically the PF1700-2000 and PB1700-2000 series

cycle the thermostat's call for heat or remove 120V input power to the control for several seconds before restoring

this sweat connection valve body offers the reliability veteran technicians expect for demanding HVAC terminal systems

Solid-state construction provides reliable resistance to vibration and thermal cycling common in outdoor high-static environments

25mm thread

Belimo Z3075Q-J Valve THPU32HP7Y specifically the PF1700-2000 and PB1700-2000The Belimo Z3075Q J is a high performance 3 4" 3 way zone valve engineered for precise hydronic control in tight mechanical spaces. Part of the ZoneTight (QCV) series, this valve features a 4. 6 Cv rating and a forged brass body designed for chilled or hot water applications, including up to 60% glycol solutions. For technicians, the snap fit design is a critical advantage, allowing for tool free actuator mounting that significantly reduces