Belimo R449 - 2-way control ball valve
Belimo R449 is a 2-way ball valve with a regulating insert, DN 50, PN 25, with G 2 3/4" male thread and Kvs 40 m³/h. It is designed to control the flow of water and water containing max. 50% by volume glycol.
Medium temperature: -10...100°C [14...212°F]. The valve has an equal-percentage characteristic and leakage class A.
Belimo R449 – 2-way control valve
A ball valve with a regulating insert, designed for water-side control in ventilation and heating systems. The integrated insert provides an equal-percentage flow characteristic.
Key features
- Type: 2-way, DN 50, PN 25.
- Connection: G 2 3/4" male thread, in accordance with ISO 228-1.
- Kvs: 40 m³/h; ps: 1600 kPa.
- Medium: water, water containing max. 50% by volume glycol.
- Medium temperature: -10...100°C [14...212°F].
- Differential pressure: ∆pmax 200 kPa; closing pressure: 1400 kPa.
- Flow characteristic: equal-percentage; permissible leakage: bubble-tight, leakage class A.
- Nickel-plated brass body; stainless steel closing element and stem.
Installation instructions
Permitted installation from vertical to horizontal with respect to the stem; do not install with the stem pointing downwards. For medium temperatures of -10...2°C, a valve neck extension is recommended. The permissible medium temperature may depend on the actuator used.
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Brand
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ReferenceR449
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EAN137630498108242
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Kvs40 m³/h
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MediumWater, water with up to 50% vol. glycol.
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Pattern2-way
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Fluid temperature-10...100°C [14...212°F]
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Fluid temperature, noteAt a fluid temperature of -10...2°C, extending the valve neck is recommended. The permissible fluid temperature may be limited depending on the actuator type. Refer to the relevant actuator data sheets for limitations.
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Differential pressure∆pmax 200 kPa
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Closing pressure1400 kPa
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Flow characteristicEqual-percentage characteristic
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Permissible leakageBubble-tight, leakage class A
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Pipe connectionExternal thread
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