Danfoss VF 3 three-way seated flanged control-valve body, OEM order code 065Z0257. VF 3 PN16 25/10 3-way seated flange Nominal size DN 25, Kvs 10 m³/h, nominal pressure PN 16 (16 bar), valve stroke 10 mm. Mixing valve (secondary pressure-relief function). Equal percentage flow characteristic, control ratio 100:1, seat leakage bubble tight design; max closing Δp 4 bar mixing / 1 bar diverting. Materials: body Grey cast iron EN-GJL-250 (GG-25), cone Brass, stem Stainless steel, stuffing-box seal EPDM. For heating and cooling circuits on district heating/cooling circulation water (alt. glycolic water up to 50%), media temperature -10 °C to 130 °C. Motorised by a matched Danfoss AMV/AME electric actuator sized to the valve stroke. Net weight 4.855 Kilogram. Data quoted verbatim from store.danfoss.com (code 065Z0257).