Belimo X8016M.21A2A - two-way control valve for refrigerants

Belimo X8016M.21A2A – control valve for refrigeration systems

Two-way control valve with an equal-percentage characteristic (VDI/VDE 2173), designed to regulate the flow of HFC and HFO refrigerants. Suitable for A2L safety-class refrigerants (ISO 817). The rotary actuator provides modulating control and safety shut-off with SuperCap.

Key specifications

• Kvs: 4.8 m³/h; connection: ODF 16-16 mm internal solder socket.
• Permissible operating pressure ps: 5000 kPa; maximum differential pressure ∆pmax: 3500 kPa.
• Supply: AC/DC 24 V; control range Y: 0.5...10 V; feedback signal U: 0.5...10 V.
• Power consumption during operation: 2.5 W; in the rest position: 0.5 W; for cable sizing: 5 VA.
• Motor running time: 15 s / 90°; safety shut-off running time: 15 s / 90°.
• Fluid temperature: -20...70°C [-4...158°F]; with ZCQ-E: 70...120°C [158...248°F]. Ambient temperature: -30...50°C [-22...122°F], without radiation.
• Tightness: air-bubble tight, leakage rate A (EN 12266-1).
• IEC/EN protection rating: IP40; IEC/EN protection class: III, Safety Extra-Low Voltage (SELV).
• Power and control cable: 3 m, 4x 0.34 mm².
• Body: CW617N brass; closing element: AISI 316L stainless steel.
• Permissible mounting position: from vertical to horizontal relative to the spindle; mounting with the spindle pointing downwards is not permitted.

When used with flammable refrigerants, the user must check that the product is suitable for the specific installation.