Belimo Non-Spring Return Valve Actuator NEMA HVAC Control Valves & Actuators

Belimo non-spring return valve actuators are electric, 24 V actuators for the modulating control of HVAC ball valves and other quarter-turn valves. They are also called non fail-safe valve actuators. They come in a NEMA 4X-rated enclosure, so they suit demanding indoor and outdoor installations.

Key Features:

• Non-spring return (non fail-safe) design: the actuator stays in its last position when power is removed.
• 24 V AC/DC operation: works with common HVAC control power.
• Multi-Function Technology (MFT): a configurable, programmable actuator that supports a 2 to 10 VDC modulating control signal. Other operating modes include on/off and floating point, depending on the model.
• NEMA 4X enclosure: protects against rain, windblown dust and washdown moisture. The IP66/67 protection category applies.
• Direct-coupled mounting: the actuator couples straight to the valve and rotates through 90°.
• Selectable direction of motion: a switch sets the direction.
• Manual override: lets you position the valve without power.
• Overload protection: electronic protection throughout the rotation range.
• Terminal wiring: a numbered terminal strip makes field connections straightforward.

Belimo is a well-known maker of actuators and control valves for HVAC systems. These actuators give reliable, precise valve positioning in building automation and hydronic control applications. Choose the model that matches your valve's torque and mounting requirements.