Danfoss RA-N 013G8370 Data sheet

Data Sheet

Integrated preset valve type RA-N 013G8370,
for normal ow

Application

Ordering and
Technical Data

The integrated valve type RA-N (013G8370) with
built-in presetting is designed for incorporation
into valve radiators and convectors from dierent
radiator and convector manufacturers.
The integrated valves can be used in single and
two pipe installations with circulating pump.

Typ e Connection

1 2 3 4 5 6 7 N N

RA-N G½A 0.14 0.21 0.26 0.32 0.46 0.59 0.73 0.87 1.05 013G 8370

Technical Data

Max. water temperature ..................120 °C Test pressure............................ 16 bar

Rec. dierential pressure. ...........0.05-0.2 bar Working pressure ....................... 10 bar

Tech. dierential pressure 2)..............0.6 bar

1)

kv-values indicate the ow volume (Q) in m3/h at a pressure loss (Δp) across the valve of 1 bar. kv = Q :√∆p. At setting N,

the kv-value in accordance with EN 215 can be stated as Xp = 2 K. At lower preset values, Xp will be reduced until
approximately Xp 0.5 at presetting 1. The table shows the average measured values for integrated valves with radiator.
The kvs-values indicate the valve capacity, when the valve is fully open. When using a liquid lled radiator thermostat
e.g. RAW, RAS-D or remote setting element t ype RA 5060 Xp will be increased by factor 1.6 (at setting “N”, ref. EN 215).

2)

The technical dierential pressure indicates the upper limit for a proper valve function. In most t wo-pipe systems the

recommended dierential pressure is sucient. In order to achieve a noiseless function we recommend in smaller
systems to apply automatic bypass valves or automatic balancing valves. If pump dierential pressure exceeds the
recommended max. valve dierential pressure it is recommended that an automatic balancing valve type ASV-P/PV is
added to the system.

The integrated valves have a reinforced stung
box to avoid damage on the valve at low
temperatures.
To avoid calcication and corrosion, it is impor­tant for the composition of the circulating water
to comply with the VDI 2035 guidelines.
All thermostatic sensors in the RA series can be
combined with RA-N 013G8370.

Presetting

1)

k

Code no.kv-value

vs

Accessories and
Spare Parts

Product Code no.

Gland seal, 10 pcs.

Green protection cap 013G 8469

1)

The gland seal of the valve can be replaced under pressure, i.e. while the installation is in operation.

VDTV Y202 © Danfoss 02/2011

1)

013L0669

1

Data Sheet Integrated preset valve type RA-N 013G8370, for normal ow

Presetting

Reference mark

The presetting values of the integrated valves
can be adjusted easily and accurately without the
use of tools (factory setting: ‘N’):

• Remove the protective cap or the thermostatic
sensor.

• Find the reference mark.

• Turn the setting ring until the desired preset­ting aligns with the reference mark.

The presetting is controlled directly without the
use of equipment. After installation in the
radiator, the reference mark of the valves will not
always be positioned in the same place.
Presetting can be selected innitely variably
within and between the setting numbers 1 to 7.

Factory

setting

Presetting range

Reference mark

At setting ‘N’ the valve is fully open. Setting in the
shaded areas of the drawing should be avoided.
In a one-pipe installation, the setting ‘N’ must be
used.
Setting ‘N’ can be used as a ushing position if
the system has to be ushed out because of dirt
problems.
When the radiator thermostat has been installed,
the presetting is protected against unintended
regulation.
For Danfoss elements RA 2000 and RAW, a theft
protection device is available; this also provides
added security against unwanted adjustment of
the preset values.

Capacities

Capacities without radiator and ttings

Capacities at Xp = 2K with Danfoss radiator thermostats RA-N are measured without radiator and connec­tion ttings.

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VDTV Y202 © Danfoss 02/2011