Danfoss ICS1 40 pilot-operated servo main valve (code 027H4144) for industrial refrigeration. Straightway steel body with butt-weld connections both ends, 1½ in / 40 mm to EN 10220; flow coefficient Kv 27 m³/h (Cv 31 gal/min). The ICS 1 main valve carries a single pilot function module on its top cover; opening configuration full open by external hot gas. Maximum working pressure 65 bar (943 psig); media temperature -60 to +120 °C (-76 to 248 °F). Suitable for R717 (ammonia), R744 (CO₂), HFC and hydrocarbon refrigerants. Specifications per Danfoss store code 027H4144.