Belimo R404DK - 2-way ball control valve

Belimo R404DK – ball control valve

2-way valve with a control orifice for open and closed water systems. The technical data sheet also specifies use for modulating control on the domestic water side in district heating systems; heated potable water is permitted on request.

Key technical data

• Type: R404DK; DN 10; PN 40.
• Pipe connection: G 3/4" male thread in accordance with ISO 228-1.
• Kvs: 0.3 m³/h.
• Fluid: water, water with max. 50% vol. glycol; potable water on request.
• Fluid temperature: 2...130°C [36...266°F]. The permitted range may be limited by the actuator type.
• Differential pressure: ∆pmax 400 kPa; closing pressure: 1400 kPa.
• Flow characteristic: equal-percentage, optimised over the opening range.
• Tightness: bubble-tight, leakage class A (EN 12266-1).
• Valve body: low-lead gunmetal (CuSn4Zn6Pb3); closing element and stem: stainless steel.
• Angle of rotation: 90°; operating range: 15...90°.

The valve is operated by a rotary actuator. Observe the flow direction indicated by the arrow on the body; installation with the stem pointing downwards is not permitted.