Belimo X8028M.1A323 - two-way control valve for refrigerants

Belimo X8028M.1A323 – control valve

Two-way control valve for regulating refrigerant flow. The documentation indicates suitability for A3 safety class refrigerants (ISO 817) and CFC, HFC, HFO and R290 refrigerants. When used with flammable refrigerants, the user must verify that the product is suitable for the specific installation.

Key features and specifications

• Kvs: 1.2 m³/h; PN 50.
• Connection: internal ODF 28-28 mm soldering sleeve.
• Supply: AC/DC 24 V; modulating control, operating range Y 0.5...10 V and position feedback signal U 0.5...10 V.
• Power consumption during operation and in the rest position: 0.3 W; for cable sizing: 0.6 VA. Electrical connection: 3 m cable, 4x 0.34 mm².
• Motor running time: 15 s / 90°; equal-percentage flow characteristic (VDI/VDE 2173).
• Permissible operating pressure ps: 5000 kPa; maximum differential pressure ∆pmax: 3500 kPa.
• Medium temperature: -20...70°C [-4...158°F]; with ZCQ-E: 70...120°C [158...248°F]. Ambient temperature: -30...60°C [-22...140°F], without radiation.
• Tightness: air-bubble tight, leakage rate A (EN 12266-1).
• Body: CW617N brass; closing element: AISI 316L stainless steel.
• Degree of protection IEC/EN IP40; protection class IEC/EN III, Safety Extra-Low Voltage (SELV).
• Installation from vertical to horizontal position relative to the stem; installation with the stem pointing downwards is not permitted.