Danfoss VFM 2 two-way seated flanged control-valve body, OEM order code 065B3506. VFM 2 DN250 kvs 900 PN16 2-way flange Nominal size DN 250, Kvs 900 m³/h, nominal pressure PN 16 (16 bar), valve stroke 50 mm. Function: pressure relief (spindle normally open). Logarithmic flow characteristic, control ratio 100:1, seat leakage 0.03 % Kvs max; max differential pressure 5 bar. Materials: body Grey cast iron EN-GJL-250 (GG-25), cone Stainless steel. For district heating and cooling circuits on district heating/cooling circulation water (alt. glycolic water up to 50%), media temperature -10 °C to 150 °C. Motorised by a matched Danfoss AMV/AME electric actuator sized to the valve stroke. Net weight 369.6 Kilogram. Data quoted verbatim from store.danfoss.com (code 065B3506).