Danfoss RA-N 013G3259 Data sheet

Data Sheet

Integrated Presetting Valve, Type RA-N 013G3259 - with Soldering Connection

Application

Code Nos. and Technical

Data

The valve is specially intended and designed to be built in the radiator by the radiator manufacturer.

The valve body RA-N is used in two-pipe district or central heating systems with pump, or in onepipe pumped systems.

RA-N is fitted with built-in presetting of max. water flow within the setting range:

kv = 0.16 - 1.00 m³/h

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

The valve is supplied unassembled in five main groups: valve body, valve top assembly, valve insert, protective cap, and rotation lock.

The valve body is made of MS 58 brass.

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).

		Solder					Presetting						Max.
		connection
	Type												water	Code no.
		In, Ø	Out, Ø				kv-value 2) 3)					kvs	temp.
		mm	mm
				1	2	3	4	5	6	7	N	N	°C
	RA-N,	15	15	0.16	0.20	0.25	0.35	0.47	0.60	0.73	0.80	1.00	120	013G3259
	angle 1)

Pressure data: Differential pressure 4): 0.6 bar, max. working pressure: 10 bar, test pressure: 16 bar.

1)Inlet and outlet socket prepared for soldering of pipes.

2)The kv-values indicate the flow volume (Q) in m³/h at a pressure loss (∆p) across the valve of 1 bar;

. 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.

Danfoss Heating Solutions

VD34A302

© Danfoss

03/2011

1

Data Sheet	Integrated Presetting Valve, Type RA-N 013G3259 - with Soldering Connection
	3)	When using a liquid filled radiator thermostat e.g. RAW, RAS-D or remote setting element type RA 5060
		Xp will be increased by factor 1.6 (at setting “N”, ref. EN 215).
	4)	The technical differential pressure indicates the upper limit for a proper valve function. In most two-
		pipe systems the recommended differential pressure is sufficient. In order to achieve a noiseless
		function we recommend in smaller systems to apply automatic bypass valves or automatic balancing
		valves. If pump differential pressure exceeds the recommended max. valve differential pressure it is
		recommended that an automatic balancing valve type ASV-P/PV is added to the system.
Spare Parts and Accessories
	Product		Code no.
	Gland seal, 10 pcs. 1)		013G0290

System

Design

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

1.												Condensate
2.												Bellows
3.												Setting dial
4.												Setting spring
											5.	Limitation pin
				6.								Pressure pin
										7.		O-ring seal
										8.		Throttle nozzle
							9.					Valve cone
10.												Valve body
11.												Soldering connections
12.												Remote sensor

Materials in contact with water

Valve body and other metal parts	Ms 58 brass
Throttle nozzle	PPS
O-ring	EPDM
Valve cone	NBR
Pressure pin in gland seal	Chrome steel

2

VD34A302

© Danfoss

03/2011

Danfoss Heating Solutions

Data Sheet	Integrated Presetting Valve, Type RA-N 013G3259 - with Soldering Connection

Presetting		1	2
		3
	3
1.	Presetting range	In a one-pipe installation, the setting ‘N’ must be
2.	Factory setting and one-pipe system	used.
3.	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 infinitely variably within the range of 1 to 7. At setting ‘N’ the valve is fully open. Setting in the shaded areas of the drawing should be avoided.

Setting ‘N’ can be used as a flushing position if the system has to be flushed out because of dirt problems.

When the radiator thermostat has been installed, the presetting is protected against unintended regulation.

For Danfoss elements RA 2000, RAS-C, RAS-D and RAE, a theft protection device is available; this also provides added security against unwanted adjustment of the preset values.

Dimensions

Danfoss Heating Solutions

VD34A302

© Danfoss

03/2011

3