Belimo H740S - 3-way globe valve

Belimo H740S – 3-way globe valve

Flanged valve for closed water systems, designed for water-side control in ventilation and heating systems. It can operate as a mixing valve from A+B to AB or as a diverting valve from AB to A+B. In diverting mode, the maximum pressure values are lower than in mixing mode.

Key technical data

• DN 40, PN 16; flanged connection in accordance with ISO 7005-2.
• Kvs 25 m³/h; stroke 20 mm.
• Medium: water, water with max. 50% vol. glycol.
• Medium temperature: 5...150°C [41...302°F]; 120°C up to 1600 kPa, 150°C up to 1400 kPa.
• Flow characteristic: A – AB equal percentage, B – AB linear.
• Permissible leakage: A – AB max. 0.05% of the Kvs value; B – AB max. 1% of the Kvs value.
• Body: EN-GJL-250 (GG 25) with protective coating; plug, stem and seat made of stainless steel; stem seal: PTFE V-ring.

Permissible installation: from vertical to horizontal relative to the stem; installation with the stem pointing downwards is not permitted. Maximum differential pressure and closing pressure depend on the actuator used.