Belimo R7050R-B3 - 3-way changeover ball valve DN 50

Belimo R7050R-B3 – changeover ball valve

3-way valve with a flange connection, designed for closed water systems. Suitable for water or water with a maximum of 50% vol. glycol.

Key specifications

• Nominal size: DN 50; nominal pressure: PN 6.
• Kvs: 49 m³/h; flow through bypass B – AB: approx. 50% of the Kvs value.
• Fluid temperature: -10...100°C [14...212°F].
• Differential pressure: ∆pmax 100 kPa; closing pressure: 600 kPa.
• Tightness A – AB: bubble-tight, leakage rate class A (EN 12266-1); B – AB: leakage rate class I (EN 1349 and EN 60534-4), max. 1% of the Kvs value.
• Rotation angle: 90°; pipe connection: flange according to EN 1092-1/4.
• Body: nickel-plated brass; flange for DN 50: aluminium.

Installation notes

Permitted mounting position: from vertical to horizontal relative to the axis. Do not install with the axis pointing downwards. For fluid temperatures of -10...2°C, heating the shaft or using a valve neck extension is recommended. The permitted fluid temperature range may depend on the actuator type.