Belimo D6250W - DN 250 2-way butterfly valve

Belimo D6250W butterfly valve

2-way Wafer-type butterfly valve for open and closed water systems. The documentation specifies its use for switching heat sources or cooling units on and off.

Key features

• DN 250; PN 6 / 10 / 16; flanged connection.
• Kvs 1300 m³/h; Kvmax 4200 m³/h.
• Medium: water, water with up to 50% vol. glycol.
• Medium temperature: -20...120°C [-4...248°F]; differential pressure ∆pmax 300 kPa.
• Tightness A (EN 12266-1); rotation angle 90°.
• Flow characteristic: 0...60% opening angle – equal percentage; 0...100% opening angle – S-shaped. A linear characteristic can be configured using Belimo Assistant 2.
• Body: EN-GJS-400-18-LT (GGG 40.3); closing element: AISI 304 stainless steel (CF-8, 1.4308); seat: EPDM.

Installation notes

Installation is permitted from vertical to horizontal in relation to the spindle; installation with the spindle pointing downwards is not permitted. When the medium is flowing, the valve must not operate without an actuator or worm gear.