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The Danfoss MSV-F2 DN 50 PN 16 is a flanged balancing valve for manual flow setting in closed heating and cooling systems. It enables precise balancing of branches and circuits; Kvs 53.8 m³/h, max. temperature 130 °C. More information
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| Connection size | DN 50 |
| Connection Type | Flange |
| Flow | 54 m3/h |
| Medium Temperature | -10...130 °C |
| Pressure | PN 16 |
| Weight | 9.46 kg |
Danfoss MSV-F2 DN 50 PN 16 is a flanged balancing valve with manual flow presetting. It is used for hydraulic balancing of branches and circuits in closed heating and cooling systems. The valve is supplied as standard with a position indicator and stroke limiter; the setting can be locked to prevent unwanted adjustment.
The valve is designed for closed heating and cooling systems where the flow needs to be permanently set and fixed on a specific branch, circuit or riser. It is typically installed on each terminal unit, branch or riser during system commissioning. The medium is water or water mixtures with glycol-based antifreeze additives. Flanged connection in accordance with EN 1092-2 makes integration into industrial and process pipework of larger diameters easier.
The flow is preset using a handwheel with a numerical display (plastic version for DN 15–150). The stroke limiter, integrated directly into the handwheel, prevents the set flow from being exceeded. Once set, the position can be locked with an Allen screw. For accurate flow measurement, needle test plugs are included as standard, compatible with the Danfoss PFM 100 / PFM 1000 measuring instrument.
Technical parameters of the MSV-F2 DN 50 PN 16:
The MSV-F2 DN 50 valve has a kVS of 53.8 m³/h (fully open, setting 6). The flow can be regulated in 6 steps: at setting 1, the kv value is 7.4 m³/h, while at setting 6 it reaches the full kVS of 53.8 m³/h. The maximum permissible differential pressure in the throttling function is 1.5 bar, and the maximum flow velocity is ≤ 4 m/s.
Yes, the valve can be installed on both the flow and return line. It is essential to observe the flow direction indicated by the arrow on the body. The datasheet recommends a straight pipe length of 5D upstream of the valve and 2D downstream; failure to comply may affect flow measurement accuracy by up to 20%.
Yes, the valve is designed for water as well as water mixtures with antifreeze additives (glycols) in closed systems. When using glycol, a flow correction factor must be applied – for example, for a 30% ethylene glycol solution, the correction factor is 0.953. Danfoss recommends verifying the compatibility of the specific glycol type with the valve materials with the additive supplier.
Face-to-face length L = 230 mm, flange diameter ØD = 165 mm, pitch circle diameter ØK = 125 mm, 4 M19 holes. Height H1 = 125 mm. The valve weighs 9.4 kg. The flanges comply with EN 1092-2.
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