2-port VVF21 and 3-port VXF21 valves DN 25 to DN 100 with flanged connections to ISO 7005; valve body: grey cast iron EN-GJL-250 and brass trim; equal percentage valve characteristic; k_VS 1.9 to 160 m³/h; medium temperature: -10…150 °C.

Suitable for use in closed circuits, e.g. heating groups, DHW storage tank charging, boiler plant.

Links to more information:

- 2-port valve VVF21
- 3-port valve VXF21
- Suitable actuators electro-hydraulic: SKD SKB SKC
- Suitable actuator electro-motoric: SAX

2-port VVF31 and 3-port VXF31 valves DN 15 to DN 150 with flanged connections to ISO 7005; valve body: grey cast iron EN-GJL-250 and brass trim; equal percentage valve characteristic; k_VS 1.9 to 315 m³/h; medium temperature: -10…150 °C. Suitable for use in closed circuits, e.g. heating groups, air handling units, DHW storage tank charging, boiler plant.

Links to more information:

- 2-port valve VVF31
- 3-port valve VXF31
- Suitable actuators electro-hydraulic: SKD SKB SKC
- Suitable actuator electro-motoric: SAX

2-port VVF40 and 3-port VXF40 valves DN 15 to DN 150 with flanged connections to ISO 7005; valve body: grey cast iron EN-GJL-250 and brass trim; equal percentage valve characteristic; k_VS 1.9 to 315 m³/h; medium temperature: -10…150 °C. Suitable for use in closed circuits, e.g. heating groups, air handling units, DHW storage tank charging, boiler plant.

Links to more information:

- 2-port valve VVF40
- 3-port valve VXF40
- Suitable actuators electro-hydraulic: SKD SKB SKC
- Suitable actuator electro-motoric: SAX

2-port VVF43 valves DN 65 to DN 150 and 3-port VXF43 valves DN 65 to DN 150 with flanged connections to ISO 7005 (for DN 15 to DN 50 use VVF53/VXF53); valve body: nodular cast iron EN-GJS-400-18-LT and stainless-steel trim; equal percentage valve characteristic; k_VS 50 to 400 m³/h; medium temperature: -20…220 °C

Suitable for use in open and closed circuits, e.g. air handling units, chiller plant, cooling towers, boiler plant.

Links to more information:

- 2-port valve VVF43
- 3-port valve VXF43
- Suitable actuators electro-hydraulic: SKC

2-port VVF53 valves DN 15 to DN 150 and 3-port VXF53 valves DN 15 to DN 150 with flanged connections to ISO 7005; valve body: nodular cast iron EN-GJS-400-18-LT and stainless-steel trim; equal percentage valve characteristic; k_VS 0.16 to 400 m³/h; medium temperature: -20…220 °C

Suitable for use in open and closed circuits, e.g. district heating, air handling units, steam humidifier, chiller plants. Suitable for use with steam.

Links to more information:

- 2-port valve VVF53
- 3-port valve VXF53
- Suitable actuators electro-hydraulic: SKD SKB SKC
- Suitable actuator electro-motoric: SAX

2-port VVF61 and 3-port VXF61 valves DN 15 to DN 150 with flanged connections to ISO 7005; valve body: cast steel EN-GP240GH and stainless-steel trim; equal percentage valve characteristic; k_VS 0.19 to 300 m³/h; medium temperature: -25…220 °C (350 °C). Suitable for use in open and closed circuits, e.g. district heating.

Suitable for use with steam and thermo oil.

Links to more information:

- 2-port valve VVF61
- 3-port valve VXF61
- Suitable actuators electro-hydraulic: SKD SKB SKC