Belimo D650N - 2-way butterfly valve DN 50

Belimo D650N is a 2-way butterfly valve designed for open and closed water systems, including switching heat sources or cooling equipment on and off.

Key features

• Nominal diameter: DN 50; PN 6 / 10 / 16 flange connection.
• Kvs 30 m³/h; Kvmax 100 m³/h.
• Medium: water or water with max. 50% vol. glycol.
• Medium temperature: -20...120°C [-4...248°F].
• Maximum differential pressure ∆pmax: 300 kPa.
• Flow characteristic: 0...60% opening angle – equal percentage; 0...100% opening angle – S-shaped.
• Leakage rate A (EN 12266-1); rotation angle 90°.
• Body: EN-GJS-400-18-LT (GGG 40.3); closing element: AISI 304 stainless steel (1.4301); seat: EPDM.

Installation is permitted from vertical to horizontal; installation with the stem pointing downwards is not permitted.