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Datasheet generated 2026-10-07
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Danfoss VFG 33 Three-Way Mixing Globe Valve Body DN25 PN 16 Kvs 8 m³/h (3-Way flanged)

Danfoss · Valves · Globe Valves · Denmark · danfoss.com
Part Number
065B2598  ·  HS 8481.80
Danfoss VFG 33 Three-Way Mixing Globe Valve Body DN25 PN 16 Kvs 8 m³/h (3-Way flanged)

Danfoss VFG 33 3-way flanged globe (seat) valve body, OEM order code 065B2598. Nominal size DN25, pressure class PN 16, flow coefficient Kvs 8 m³/h. The VFG 33 is a three-way mixing valve body (flow-dividing / flow-mixing service, function "Pressure relief" plus "Mixing valve", control ratio 1:50). It pairs with a matched self-acting (AFA / AFP / AFT / AVT) or electric (AMV / AME) actuator to form a temperature, pressure, differential-pressure or flow controller. Ductile cast iron EN-GJS-400-18-LT (GGG 40.3) body with stainless-steel, mat. no. 1.4404 cone and stainless-steel, mat. no. 1.4021 seat, linear flow characteristic, 8 mm stroke, spindle a-ab: normally closed. Rated for district heating media at 2 °C to 200 °C, maximum differential pressure 16 bar. Data quoted verbatim from store.danfoss.com (code 065B2598).

Technical Specifications

BrandDanfoss
Part number065B2598
TypeVFG 33
Product groupMotorized control valves
ApplicationDistrict Heating
Valve sizeDN 25
Pressure classPN 16
Nominal pressure16 bar
Kvs value8 m³/h
Connection typeFlange
Number of ports3
FunctionPressure relief
Function 2Mixing valve
Control ratio1:50
Flow characteristicLinear
Spindle positionA-AB: Normally closed
Stroke8 mm
Differential pressure (max)16 bar
Cavitation factor0.6
Media temperature2 °C to 200 °C
Permissible mediaDistrict heating/cooling circulation water
Medium alternativeGlycolic water up to 30%
Media pH range7 to 10
Leakage through port (max)0.05 % Kvs
Leakage bypass port (max)0.05 %
Valve body materialDuctile cast iron EN-GJS-400-18-LT (GGG 40.3)
Valve cone materialStainless steel, mat. No. 1.4404
Valve seat materialStainless steel, mat. No. 1.4021
Net weight11.32 Kilogram
Gross weight11.32 Kilogram
EAN5702421805152
HS code8481.80 (taps, cocks, valves for pipes)

Properties

MaterialDuctile cast iron EN-GJS-400-18-LT (GGG 40.3); cone Stainless steel, mat. No. 1.4404; seat Stainless steel, mat. No. 1.4021
Pressure ratingPN 16 (16 bar); max differential pressure 16 bar
Temperature range2 °C to 200 °C
Standard sizeDN 25
MOQ1

Compatibility

Valve body for Danfoss three-way mixing control-valve assemblies. Combine the VFG 33 DN25 body with a matched self-acting (AFA / AFP / AFT / AVT) or electric (AMV / AME) actuator sized for the required duty. Select the body by nominal size (DN25), pressure class (PN 16) and flow coefficient (Kvs 8 m³/h); verify actuator stroke 8 mm and media compatibility before ordering.

Attached Documents