Danfoss RA-FN Data sheet

Data Sheet

Fixed Capacity ValvesType RA-FN (Series F)

Application

RA-FN straight RA-FN angle RA-FN horizontal angle

Approved to EN 215

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.

Code Nos. and Technical
Data

Danfoss Heating Solutions VDSXI202 © Danfoss 12/2010 1

Valve bodies for two-pipe systems type RA-FN
(series F)

1)

Type Design

RA-FN 10 angle Rp 3/8 R 3/8 0.17 0.34 0.47 0.56 0.65 120 °C 013G0001
RA-FN 10 straight Rp 3/8 R 3/8 0.17 0.34 0.47 0.56 0.65 120 °C 013G0002
RA-FN 10 horizontal Rp 3/8 R 3/8 0.17 0.34 0.47 0.56 0.65 120 °C 013G0141
RA-FN 15 angle Rp 1/2 R 1/2 0.22 0.43 0.57 0.73 0.90 120 °C 013G0003
RA-FN 15 straight Rp 1/2 R 1/2 0.22 0.43 0.57 0.73 0.90 120 °C 013G0004
RA-FN 15 horizontal Rp 1/2 R 1/2 0.22 0.43 0.57 0.73 0.90 120 °C 013G0143

Connections

Inlet Outlet 0.5K 1.0K 1.5K 2.0K

kv-value

pressure drop), P-band = K

(m3/h at 1 bar

k

vs

Max.

working

temp.

Code no.

Data Sheet Fixed Capacity ValvesType RA-FN (Series F)

RA-FN 20 angle Rp 3/4 R 3/4 0.30 0.58 0.83 1.04 1.40 120 °C 013G0005
RA-FN 20 straight Rp 3/4 R 3/4 0.30 0.58 0.83 1.04 1.40 120 °C 013G0006
RA-FN 20 horizontal Rp 3/4 R 3/4 0.25 0.50 0.67 0.80 1.00 120 °C 013G0145
RA-FN 25 angle Rp 1 R 1 0.30 0.58 0.83 1.04 1.40 120 °C 013G0027
RA-FN 25 straight Rp 1 R 1 0.30 0.58 0.83 1.04 1.40 120 °C 013G0028

System

Max. working pressure2): 10 bar.

1)

The kv-value indicates the water flow (Q) in m3/h at a pressure drop (∆p) across the valve of 1 bar;

Max. differential pressure: 0.6 bar Test pressure: 16 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.

2 VDSXI202 © Danfoss 12/2010 Danfoss Heating Solutions

RA-FN DN10

[mwg]

Q [l/h]

RA-FN DN15

[mwg]

Q [l/h]

Data Sheet Fixed Capacity ValvesType RA-FN (Series F)

Capacities

Danfoss Heating Solutions VDSXI202 © Danfoss 12/2010 3