Balancing valve with flowmeter CALEFFI 1" 10–40 L/min

CALEFFI balancing valve with integrated flowmeter, 1" connection and a measuring range of 10–40 L/min is designed for hydraulic balancing and precise flow regulation in heating and cooling systems. The valve provides a visible flow reading for commissioning and adjustment, enabling technicians to set and verify flow rates at radiators, manifold branches and other hydronic distribution points. Constructed for compatibility with common piping and distribution components, this balancing valve facilitates accurate system performance and stable temperature control.

Advantages

The integrated flowmeter allows direct visual monitoring of flow without additional instruments, simplifying commissioning and maintenance. The 1" connection and compact valve body ensure straightforward installation in manifold assemblies and pipe runs. Its calibrated measuring range of 10–40 L/min supports fine adjustment of circuit flows, reducing oversizing and improving energy distribution. Durable materials and a user-friendly adjustment mechanism provide repeatable and reliable flow settings over time.

Suitable for

• Hydronic heating circuits and radiator branches requiring precise flow control
• Manifold systems for underfloor heating and chilled ceilings
• Balancing tasks during commissioning and routine maintenance of HVAC systems
• Retrofit projects where visible flow verification is needed

Key specifications

• Connection size: 1" threaded connection suitable for standard pipe fittings
• Measuring range: 10–40 L/min for adjustable circuit flows
• Function: integrated balancing valve with visual flowmeter for flow regulation and measurement
• Application: suitable for heating and cooling systems, manifolds and distribution branches
• Adjustment: manual flow regulation with scale/readout for commissioning

How to use

Install the valve in-line at the intended branch or manifold port using appropriate sealing and mounting practices for a 1" connection. During commissioning, open the circuit and adjust the valve until the flowmeter indicates the target flow rate within the 10–40 L/min range. Verify flow readings under operating conditions and make incremental adjustments to achieve hydraulic balance across all circuits. Record setpoints where required for future reference. For routine maintenance, visually inspect the flow indicator and exercise the adjustment mechanism to prevent sticking.

Usage recommendations

Ensure the selected valve measuring range matches expected circuit flows; avoid operating consistently at the extremes of the range. Use compatible fittings and adhere to local installation codes. When balancing multiple circuits, adjust and verify flows one circuit at a time, and allow the system to reach stable conditions before final readout.