Belimo Z2050Q-F Valve Body

The Belimo Z2050Q-F is a 1/2" 2-way zone valve body engineered for high-performance modulation in commercial hydronic systems. Featuring a Cv rating of 1.4 and a forged brass construction, this valve is designed to handle the rigorous demands of fan coil units, VAV reheat coils, and radiant panels. Its equal percentage flow characteristic ensures linear heat output, preventing the "hunting" common in less precise valve bodies. With a 360 psi body pressure rating and a close-off pressure of 75 psi, it provides reliable shut-off and zero leakage for both chilled and hot water applications.

Designed for field efficiency, the Z2050Q-F utilizes NPT female connections and supports tool-free direct mounting of Belimo CQ series actuators. The internal assembly features a chrome-plated brass ball and PTFE seats with EPDM O-rings, allowing for fluid temperatures up to 212°F. For technicians working in tight mechanical spaces, the compact footprint and horizontal-to-upright mounting versatility make it a standard choice for zone control valve replacements and new installations.

Key Benefits

• Precision Flow Control: The equal percentage characteristic provides stable temperature control in HVAC zone valve applications.
• Zero Leakage Performance: Tight shut-off prevents energy waste and ghost heating/cooling in terminal units.
• Fast Installation: Snap-on actuator interface eliminates the need for tools during mounting or replacement.
• High Durability: Forged brass body and lubricated EPDM seals are built for long-term cycling in specialized commercial HVAC environments.
• Broad Compatibility: Matches easily with CQB and CQK actuators for fail-safe or non-fail-safe requirements.

Common Questions

Can the Z2050Q-F be used with steam?
No, this valve body is rated for water and water-glycol solutions up to 60% concentration. It is not designed for steam applications.

What is the maximum differential pressure for this valve?
The maximum differential pressure for the Z2050Q-F is 40 psi, with a static body pressure rating of 360 psi.

Does this valve require a special mounting kit for CQ actuators?
No, the Z2050Q-F features an integrated flange that allows the actuator to snap directly onto the brass stem without additional hardware.

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.