Belimo R7025R-B2 - 3-way changeover ball valve DN 25

Belimo R7025R-B2 – changeover ball valve

3-way ball valve with flanged connection for closed water systems. Designed for changeover and open/close control on the water side of ventilation and heating systems.

Key features and specifications

• Pattern: 3-way; DN 25; PN 6; pipe connection: flange.
• Kvs: 26 m³/h; flow through bypass B – AB: approx. 50% of the Kvs value.
• Medium: water, water with max. 50% by volume glycol.
• Medium temperature: -10...100°C [14...212°F].
• Differential pressure: ∆pmax 100 kPa; closing pressure: 600 kPa.
• Tightness: A – AB: bubble-tight, leakage rate A (EN 12266-1); B – AB: leakage rate I (EN 1349 and EN 60534-4), max. 1% of the Kvs value.
• Angle of rotation: 90°; nickel-plated brass body; chrome-plated brass closing element; aluminium flange.
• Installation position: from vertical to horizontal relative to the axis; installation with the axis pointing downwards is not permitted.

At a medium temperature of -10...2°C, heating the spindle or using a valve neck extension is recommended. The permitted medium temperature may depend on the actuator type; limitations are specified in the actuator data sheets.