Belimo EXT-H6125XP8000 - two-way pressure-independent globe valve

Belimo EXT-H6125XP8000 – two-way globe valve

Pressure-independent globe valve with flanged connection, designed for closed water circuits (pH >7) and district heating networks. Medium: water or water with up to 30% glycol by volume.

Key features and parameters

• Nominal size DN 125; PN 25.
• Nominal flow V'nom: 22.2 l/s (80 m³/h).
• Theoretical Kvs value: 180 m³/h; stroke: 21 mm; Sv min.: 24.
• Medium temperature: 5...140°C [41...284°F].
• Maximum differential pressure across the control valve: 1500 kPa. For operation without cavitation, the maximum differential pressure ∆pmax must be calculated in accordance with the design guidelines.
• Flow characteristic: equal percentage; leakage: max. 0.1% of the Kvs value.
• Body: EN-GJS-400-18-LT (GGG 40.3), with protective coating; flanged connection according to EN 1092-2.
• Permitted mounting position: vertical to ±45° relative to the stem.

The mechanical differential pressure regulator compensates for pressure fluctuations and maintains a constant differential pressure across the control valve. The maximum flow V'max can be set using the ring on the valve neck; correct adjustment requires maintaining the minimum differential pressure.