Belimo R2020-4-S2 - 2-way regulating ball valve
Belimo R2020-4-S2 is a 2-way regulating ball valve with a regulating orifice, DN 20, PN 40, Rp 3/4" female thread and Kvs 4 m³/h. Designed for water-side control in ventilation and heating systems.
Belimo R2020-4-S2
2-way regulating ball valve with a regulating orifice for open and closed water systems. It is used for water-side control in ventilation and heating systems.
Key features
- DN 20, PN 40; Rp 3/4" female thread.
- Kvs 4 m³/h; equal-percentage characteristic.
- Medium: water or water with a maximum of 50% by volume glycol; medium temperature -10...120°C [14...248°F].
- Maximum differential pressure Δpmax 350 kPa; closing pressure ∆ps 1400 kPa. 200 kPa is specified for quiet operation.
- Tightness: bubble-tight, leakage rate A (EN 12266-1).
- Nickel-plated brass body; stainless steel closing element and stem.
- Rotary angle 90°; operating range 15...90°.
At medium temperatures of -10...2°C, stem heating or a valve neck extension is recommended. The permitted medium temperature may depend on the actuator type; refer to its data sheet for limitations.
Installation is permitted from vertical to horizontal relative to the valve axis, but not with the axis pointing downwards. Observe the flow direction indicated by the arrow on the body.
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Brand
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ReferenceR2020-4-S2
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EAN137630498105289
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Kvs4 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...120°C [14...248°F]
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Fluid temperature, noteFor medium temperatures of -10...2°C, heating the shaft or extending the valve neck is recommended. The permissible medium temperature may be limited depending on the actuator type. Refer to the relevant actuator data sheets for restrictions.
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Differential pressure∆pmax 350 kPa
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Closing pressure1400 kPa
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Differential pressure note200 kPa for quiet operation
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Flow characteristicEqual-percentage characteristic
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Permissible leakageBubble-tight, leakage class A
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Pipe connectionInternal thread
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