Danfoss VF 3 three-way seated flanged control-valve body, OEM order code 065B3125. VF 3 PN16 125/220 3-way seated flange Nominal size DN 125, Kvs 220 m³/h, nominal pressure PN 16 (16 bar), valve stroke 40 mm. Mixing valve (secondary pressure-relief function). Equal percentage flow characteristic, control ratio 100:1, seat leakage 0.05 % Kvs max; max closing Δp 3 bar mixing / 0.6 bar diverting. Materials: body Ductile cast iron EN-GJS-400-18-LT (GGG 40.3), cone GGG 40, stem Stainless steel, stuffing-box seal PFTE. For heating and cooling circuits on district heating/cooling circulation water (alt. glycolic water up to 50%), media temperature -10 °C to 200 °C. Motorised by a matched Danfoss AMV/AME electric actuator sized to the valve stroke. Net weight 59.1 Kilogram. Data quoted verbatim from store.danfoss.com (code 065B3125).