Belimo EXT-H650P-1500 - pressure-independent 2-way globe valve

Belimo EXT-H650P-1500

Pressure-independent 2-way globe valve for closed water circuits (pH >7) and district heating systems.

Key parameters

• DN 50, PN 16; flanged connection according to EN 1092-2.
• V'nom 4.4 l/s; theoretical Kvs value 32 m³/h; stroke 13 mm.
• Medium: water or water with a maximum of 30% vol. glycol; medium temperature 5...140°C [41...284°F].
• Maximum differential pressure across the control valve: 1000 kPa. To prevent cavitation, ∆pmax must be calculated in accordance with the design notes.
• Flow characteristic: equal percentage; permissible leakage: max. 0.05% of the Kvs value.
• Body: EN-GJL-250 (GG 25), coated with protective paint.
• Permissible mounting position: vertical to ±45° relative to the stem.

The valve incorporates a mechanical differential pressure controller and a control valve. The maximum flow V'max is set using the adjustment ring on the valve neck. Correct flow adjustment requires maintaining a minimum differential pressure.