Danfoss 013G0372, 013G0373 Data sheet

Data Sheet

Integrated Presetting Valves

- type 013G0372 for normal volume ows

- type 013G0373 for small volume ows

Application

Ordering and Technical Data

The gland seal of the valve can be replaced while the system is in operation.

To avoid calcication and corrosion, it is important for the composition of the circulating water to comply with the VDI 2035 guidelines.

Integrated valves, type RA-N (013G0372) and RAU (013G0373), with built-in presetting are designed for incorporation into valve radiators from dierent radiator manufacturers.

The two valve types can be recognised by the colour of the presetting ring:

• Red: RA-N

• Yellow: RA-U

Danfoss thermostatic sensors types RA 2000 and RAW with patented snap socket as well as Danfoss thermo-hydraulic actuators can be installed directly onto the integratred valve.

Approved to EN 215

Integrated presetting valves type RA-N 013G0372 and type RA-U 013G0373 are manufactured to the highest standards,

Integrated valves can be used in single and two pipe installations with circulating pump.

Connec-

tion

thread

G½A 0.14 0.21 0.26 0.32 0.46 0.59 0.73 0.87 1. 05

G½A 0.04 0.05 0.07 0.09 0.13 0.18 0.24 0.34 0. 55 013G0373

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 type RA5060 Xp will be

increased by factor 1.6 (at setting “N ”, ref. EN 215).

The technical dierential pressure indicates the upper limit for a proper valve function. In most two-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 e xceeds the recommended max. valve dierential pressure it is recommended that an automatic balancing valve t ype ASV-P/PV is added to the system.

1 2 3 4 5 6 7 N N °C bar bar bar bar

Pre-setting Max.

kv-value

1) 2)

and are approved to the European standard EN 215.

Di. press.

water

temp.

120

Rec. Tec h.

0.05-

0.2

0.6 16 10

Tes t

press.

Work

press.

Code no.

013G 0372

Spare Parts and Accessories

Product Code no.

Gland seal*, 10 pcs. 013G 0290

Red protection cap for RA-N valve 013G0372 013G 0951

Yellow protection cap for RA-U valve 013G0373 013G 0952

Small O-ring 633 B1427

Big O-ring 633B0387

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

VDVEB402 © Danfoss 11/2013

Data Sheet Integrated Presetting Valves for normal and small volume ows

Design and Dimensions

The dimensions stated may var y according to dierent

radiator manufacturers (013M5058 E0002 001 047 97.03.25)

Materials

Part 013G 0372 013G0373

Valve housing Ms 58 Ms 58

Valve seat PPS Ms 58

Throttle nozzle PPS PPS

Setting dial Plastic Plastic

O-rings NBR / EPDM NBR / EPDM

Valve spindle PPS Ms 58

Valve cone NBR NBR

Pressure pin and valve spring Chrome steel Chrome steel

Pre-setting

1. Reference mark. 2. Presetting range.

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.

3. Factory set ting and one-pipe system.

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 The presetting is controlled directly without 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

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. within the range of 1 to 7. At setting ‘N’ the valve

2 3

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