Danfoss VFS 2 two-way seated control valve DN 50, Kvs 40, PN 25 – 065B1550

Danfoss VFS 2 065B1550 is a two-way seated control valve with flanged connections, designed for accurate flow control in demanding heating, cooling and steam systems.

The valve has a nominal size of DN 50, a pressure class of PN 25 and a Kvs value of 40 m³/h. It features an equal-percentage flow characteristic and a control ratio of 100:1.

It is suitable for district heating and cooling circulation water, water-glycol mixtures containing up to 50% glycol, and steam. The permitted medium temperature range is from –10 to 200 °C.

The valve body is made of ductile cast iron EN-GJS-400-18-LT, while the valve cone is made of stainless steel. The valve has a 15 mm stroke, a maximum differential pressure of 4 bar and maximum leakage of 0.05% of Kvs.

A compatible Danfoss electric actuator must be selected separately for automatic control according to the control method and operating conditions.

Main features

• manufacturer: Danfoss
• type: VFS 2
• product code: 065B1550
• valve type: two-way seated control valve
• connection: flange
• nominal size: DN 50
• pressure class: PN 25
• Kvs value: 40 m³/h
• maximum differential pressure: 4 bar
• medium temperature: –10 to 200 °C
• flow characteristic: equal percentage
• control ratio: 100:1
• valve stroke: 15 mm
• maximum leakage: 0.05% of Kvs
• valve body: ductile cast iron
• valve cone: stainless steel