Siemens Building Technology Normally Closed Valve Assembly with Actuator HVAC Control Valves & Actuators

Siemens Building Technology normally closed valve assemblies pair a control valve body with a factory-matched actuator. They are used for fluid control in hydronic HVAC systems, and some are also used for zone control. Each assembly closes when the actuator is not driving it open. That makes it a dependable choice for heating and cooling coils, fan coils, baseboard, reheat and other terminal units. You may also see these called normally closed control valves, valve actuator assemblies or zone valve assemblies.

Key Features:

• Normally closed operation: the valve stays closed until the actuator opens it.
• Valve and actuator supplied as one assembly: the matched components simplify selection and installation.
• Electronic and pneumatic actuator options: the line includes spring-return and non-spring-return (fail-in-place) actuator designs.
• Multiple body and trim materials: the line includes brass, bronze and stainless steel construction, depending on the model.
• Accurate flow control: the line is designed for stable temperature control in building automation and hydronic systems.
• Siemens Building Technology engineering: the assemblies are built for commercial and institutional HVAC applications.

Siemens Building Technology is a recognized name in building automation and HVAC controls. These assemblies give contractors and facility maintenance teams a reliable way to replace or add valve control in hydronic heating and cooling systems.