Belimo R3040-S3 - 3-way changeover ball valve

Belimo R3040-S3 – changeover ball valve

3-way valve with internal thread for closed water systems. Used for changeover and open/close control on the water side of ventilation and heating systems. The valve is operated by a rotary actuator with an open/close signal.

Key features

• DN 40; Rp 1 1/2" connection with internal thread in accordance with ISO 7-1; PN 25.
• Kvs 31 m³/h; flow through bypass B – AB: approx. 50% of the Kvs value.
• Medium: water or water with max. 50% vol. glycol; medium temperature -10...120°C [14...248°F].
• Maximum differential pressure Δpmax 1000 kPa; closing pressure ∆ps 1400 kPa. 200 kPa is specified for quiet operation.
• 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°. Nickel-plated brass body; stainless steel closing element and stem.

Installation notes

Installation is permitted from vertical to horizontal relative to the axis; installation with the axis pointing downwards is not permitted. Observe the flow direction indicated by the arrow on the body.

For medium temperatures of -10...2°C, stem heating or an extended valve neck is recommended. The permitted medium temperature may depend on the actuator type; limits are specified in the actuator data sheets.