Belimo R2025-10-S2 - 2-way ball control valve

Belimo R2025-10-S2 – control valve with control insert

2-way valve with a female threaded connection, designed for open and closed water systems and for water-side control in ventilation and heating systems. The integrated control insert provides an equal-percentage flow characteristic.

Key technical data

• Type: R2025-10-S2; DN 25; PN 40; Rp 1" connection.
• Kvs: 10 m³/h; ps: 1600 kPa.
• Medium: water, water with a maximum of 50% vol. glycol.
• Medium temperature: -10...120°C [14...248°F].
• Differential pressure: ∆pmax 350 kPa; closing pressure: 1400 kPa.
• Flow characteristic: equal-percentage; tightness: bubble-tight, class A (EN 12266-1).
• Body: nickel-plated brass; closing element and shaft: stainless steel; control insert: ETFE.
• Rotation angle: 90°; operating range: 15...90°.

Installation instructions

Permitted installation position: from vertical to horizontal relative to the valve axis; do not install with the axis pointing downwards. Observe the direction of flow indicated by the arrow on the body. For medium temperatures of -10...2°C, shaft heating or a valve neck extension is recommended. The permitted temperature range may depend on the actuator used; limitations are specified in its product data sheet. A differential pressure of 200 kPa is specified for quiet operation.