Belimo ZONE215S-35 Actuator

Efficiency in hydronic systems begins with precision control, and the Belimo ZONE215S-35 Actuator and valve assembly is the standard for reliable 2-way zone valve regulation. Designed for high-performance HVACR applications, this 1/2-inch unit features sweat connections to ensure a permanent, leak-free joint in tight mechanical spaces. With a Cv 3.5 rating, it manages flow rates effectively for fan coil units, baseboards, and radiant manifolds. The forged brass body is engineered for longevity, supporting close-off pressures up to 30 psi and total body pressure ratings of 300 psi. Utilizing spring return fail-safe technology, the actuator ensures the valve returns to its home position during power loss, protecting the system from stagnant fluid or overheating. The compact profile allows for easy integration into existing enclosures, making it a go-to for veteran contractors handling 24V or 120V on/off control logic.

• High Flow Efficiency: The Cv 3.5 rating provides optimal flow characteristics for domestic and light commercial hydronic circuits.
• Mechanical Integrity: Forged brass construction and sweat-fit ends facilitate high-pressure tolerance and simplified soldering.
• Reliable Fail-Safe: Integrated spring return actuator physics provide a mechanical override to ensure system safety during outages.
• Broad Compatibility: Suitable for chilled or hot water systems with up to 50% glycol concentrations.

Is the power supply compatible with most thermostats?
Yes, this Belimo zone valve typically operates on standard 24 VAC or 120 VAC signals, making it compatible with most commercial and residential control systems.

Can this unit be installed in a vertical orientation?
The valve and actuator can be mounted in various positions, but the actuator should never be installed below the horizontal plane of the valve to prevent moisture from entering the housing.

Does it handle high-pressure close-offs?
This model is rated for a 30 psi close-off, which is sufficient for most standard hydronic loops, though your specific pump head pressure should be verified.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.