Belimo X8028M.2AA23 - 2-way refrigerant control valve

Belimo X8028M.2AA23 – control valve for refrigeration systems

2-way control valve with rotary actuator, designed to regulate refrigerant flow. Supports modulating control and safety shut-off with SuperCap.

Key technical data

• Kvs: 4.8 m³/h; flow characteristic: equal percentage (VDI/VDE 2173).
• Connection: ODF 28-28 mm internal solder connection; PN 50.
• Power supply: AC/DC 24 V; voltage range: AC 19.2...28.8 V / DC 21.6...28.8 V.
• Control signal Y: 0.5...10 V; feedback signal U: 0.5...10 V.
• Motor running time: 15 s / 90°; safety function running time: 15 s / 90°.
• Power consumption during operation: 2.5 W; in idle position: 0.5 W; for cable sizing: 5 VA.
• Electrical connection: 3 m cable, 4x 0.34 mm².
• Medium 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.
• Maximum differential pressure ∆pmax: 3500 kPa; tightness: bubble-tight, class A (EN 12266-1).
• Degree of protection IEC/EN: IP40; protection class IEC/EN: III, Safety Extra-Low Voltage (SELV).
• Body: CW617N brass; closing element: AISI 316L stainless steel.
• Length L: 180 mm; weight: 0.67 kg.

The valve can be installed with the spindle from vertical to horizontal; installation with the spindle pointing downwards is not permitted. Flow is possible in both directions. When using flammable refrigerants, the user must verify that the product is suitable for the specific application.