Data Sheet
Fixed Capacity ValvesType RA-FN (Series F)
Application
RA-FN straight |
RA-FN angle |
RA-FN horizontal angle |
Approved to EN 215
Code Nos. and Technical
Data
The RA-FN valve bodies are used in two-pipe heating systems.
The valves are manufactured from brass with nickel plating. The pressure pin of the gland seal is of chromium steel and works in a lifetime lubricated O-ring seal. The complete gland assembly can be replaced without draining down the system.
The valves are supplied with a grey protective cap, which can be used for manual regulation during the construction phase. The protective cap must not be used as a manual shut off device. A special manual shut off device (code no. 013G3300) should be used.
All Danfoss RA-FN fixed capacity valves, series F, are certified according to the European Standard EN 215.
Compression fittings for 15 mm, 10 mm or 8 mm copper tube are available for RA-FN with 3/8” and 1/2” connections.
In order to avoid deposition and corrosion, the composition of the hot water must be in accordance with the VDI 2035 guideline (Verein Deutscher Ingenieure).
It is recommended that formulations containing mineral oil are avoided.
All RA-FN valve bodies can be used together with all types of thermostatic elements in the Danfoss RA2000 series.
Valve bodies for two-pipe systems type RA-FN (series F)
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Connections |
kv-value 1) (m3/h at 1 bar |
Max. |
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Type |
Design |
pressure drop), P-band = K |
working |
Code no. |
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temp. |
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Inlet |
Outlet |
0.5K |
1.0K |
1.5K |
2.0K |
kvs |
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RA-FN 10 |
angle |
Rp 3/8 |
R 3/8 |
0.17 |
0.34 |
0.47 |
0.56 |
0.65 |
120 °C |
013G0001 |
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RA-FN 10 |
straight |
Rp 3/8 |
R 3/8 |
0.17 |
0.34 |
0.47 |
0.56 |
0.65 |
120 °C |
013G0002 |
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RA-FN 10 |
horizontal |
Rp 3/8 |
R 3/8 |
0.17 |
0.34 |
0.47 |
0.56 |
0.65 |
120 °C |
013G0141 |
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RA-FN 15 |
angle |
Rp 1/2 |
R 1/2 |
0.22 |
0.43 |
0.57 |
0.73 |
0.90 |
120 °C |
013G0003 |
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RA-FN 15 |
straight |
Rp 1/2 |
R 1/2 |
0.22 |
0.43 |
0.57 |
0.73 |
0.90 |
120 °C |
013G0004 |
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RA-FN 15 |
horizontal |
Rp 1/2 |
R 1/2 |
0.22 |
0.43 |
0.57 |
0.73 |
0.90 |
120 °C |
013G0143 |
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Danfoss Heating Solutions |
VDSXI202 |
© Danfoss |
12/2010 |
1 |
Data Sheet |
Fixed Capacity ValvesType RA-FN (Series F) |
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RA-FN 20 |
angle |
Rp 3/4 |
R 3/4 |
0.30 |
0.58 |
0.83 |
1.04 |
1.40 |
120 °C |
013G0005 |
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RA-FN 20 |
straight |
Rp 3/4 |
R 3/4 |
0.30 |
0.58 |
0.83 |
1.04 |
1.40 |
120 °C |
013G0006 |
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RA-FN 20 |
horizontal |
Rp 3/4 |
R 3/4 |
0.25 |
0.50 |
0.67 |
0.80 |
1.00 |
120 °C |
013G0145 |
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RA-FN 25 |
angle |
Rp 1 |
R 1 |
0.30 |
0.58 |
0.83 |
1.04 |
1.40 |
120 °C |
013G0027 |
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RA-FN 25 |
straight |
Rp 1 |
R 1 |
0.30 |
0.58 |
0.83 |
1.04 |
1.40 |
120 °C |
013G0028 |
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Max. working pressure2): 10 bar. Max. differential pressure: 0.6 bar Test pressure: 16 bar
1) The kv-value indicates the water flow (Q) in m3/h at a pressure drop (∆p) across the valve of 1 bar;
The kv-value is stated according to EN 215, at Xp = 2K i.e. the valve is closed at 2°C higher
room temperature. At lower settings the Xp value is reduced to 0.5K. The kvs-value states the flow Q at a maximum lift, i.e. at fully open valve.
2) Working pressure = static + differential pressure. The maximum differential pressure specified is the maximum pressure at which the valves give satisfactory regulation. As with any device which imposes a pressure drop in the system, noise may occur under certain flow/pressure conditions. To ensure quiet operation, maximum pressure drop should not exceed 30 to 35 kPa. The differential pressure can be reduced by the use of the Danfoss differential pressure regulators types AVD, AVDL, AVDS, IVD or ASV-P.
System
2 |
VDSXI202 |
© Danfoss |
12/2010 |
Danfoss Heating Solutions |
Data Sheet |
Fixed Capacity ValvesType RA-FN (Series F) |
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Capacities
RA-FN DN10
[mwg]
Q [l/h]
RA-FN |
DN15 |
[mwg] |
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Q [l/h] |
Danfoss Heating Solutions |
VDSXI202 |
© Danfoss |
12/2010 |
3 |