Belimo X8028M.1AA23 - two-way control valve for refrigerants

Belimo X8028M.1AA23

Two-way control valve with an equal-percentage characteristic, designed to regulate refrigerant flow. The ball valve is actuated by a rotary actuator. Safety closing uses SuperCap.

Key features and parameters

• Kvs: 1.2 m³/h; connection: female ODF 28-28 mm solder socket.
• Permissible operating pressure ps: 5000 kPa; maximum differential pressure ∆pmax: 3500 kPa.
• Refrigerants: suitable for A3 safety class (ISO 817) and CFC, HFC, HFO and R290.
• Supply: AC/DC 24 V; control range Y: 0.5...10 V; feedback signal U: 0.5...10 V.
• Motor operating time and safety closing time: 15 s / 90°.
• Power consumption during operation: 2.5 W; in standby position: 0.5 W; for cable sizing: 5 VA.
• Electrical connection: 3 m cable, 4x 0.34 mm²; degree of protection IEC/EN IP40; protection class IEC/EN III, Safety Extra-Low Voltage (SELV).
• Ambient temperature: -30...50°C [-22...122°F]; medium temperature: -20...70°C [-4...158°F], with ZCQ-E 70...120°C [158...248°F].
• Tightness: air-bubble tight, leakage rate A (EN 12266-1); flow characteristic: equal percentage (VDI/VDE 2173).
• Body: CW617N brass; closing element: AISI 316L stainless steel.
• Permitted installation from vertical to horizontal relative to the stem; installation with the stem pointing downwards is not permitted. Flow is possible in both directions.