Data Sheet
Steel Valve with Air-Vent for Convectors in Two-Pipe Heating Systems
Application |
The steel valve is designed for welding into |
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convectors by the manufacturer. The com- |
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plete valve consists of a steel valve body, an |
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air-vent and a valve insert with integrated |
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presetting of max. flow through the con- |
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vector. The insert has connection for all |
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Danfoss RA 2000 thermostatic sensors. |
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The flow capacity of this valve is designed |
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for conventional two-pipe heating systems. |
Code no. and technical |
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Code no. |
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data |
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Valve insert with RA 2000 sensor connection |
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013G0394 |
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Steel valve body, straight pattern, welding connections |
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013G1803 |
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Air-vent |
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640G0168 |
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Cover cap, black |
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013G8439 |
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Valve body, insert, airvent and cap |
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013G1810 |
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Spare part: Gland seal for 013G0394, 10 pcs./pack |
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013L0669 |
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Code no. |
Sensor connection |
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Presetting |
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kv-value1) |
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kvs |
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1 |
2 |
3 |
4 |
5 |
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6 |
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7 |
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N |
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N |
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013G1810 |
RA2000 |
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0.09 |
0.14 |
0.19 |
0.28 |
0.46 |
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0.61 |
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0.72 |
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0.79 |
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0.95 |
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Code no. |
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Max. water |
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Differential pressure 2) |
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Test pres- |
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Work. pres- |
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temp. |
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sure |
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sure |
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Rec. |
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Tech. |
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°C |
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bar |
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bar |
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bar |
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bar |
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013G1810 |
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120 |
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0.05-0.2 |
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0.6 |
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25 |
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16 |
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1)kv-values indicate the flow volume (Q) in m3/h at a pressure loss (∆p) 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 aver-
age measured values for integrated valves with radiator. The kvs-values indicate the valve capacity, when the valve is fully open.
2)The technical differential pressure indicates the upper limit for a proper valve function. In most twopipe 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.
Danfoss Heating Solutions |
VDFOG102 |
© Danfoss |
10/2012 |
1 |
Data Sheet |
Steel Valve with Air-Vent for Convectors in Two-Pipe Heating Systems |
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Presetting
Materials in contact with water
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 number aligns with the reference mark.
Presetting can be selected 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’ is used when flushing the system.
When the thermostatic sensor is fitted, the presetting is hidden and thus protected against unintended alteration.
Valve body |
Steel |
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Valve top |
Ms 58 |
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Valve seat |
Ms 58 |
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Throttle nozzle |
PPS |
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Setting dial |
ABS Plastic |
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O-rings |
NBR/EPDM |
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Valve spindle |
PPS |
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Valve cone |
NBR |
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Pressure pin and valve spring |
Chrome steel |
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Air vent/plug |
Brass |
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To avoid calcification and corrosion, it is important for the composition of the circulating water to comply with the VDI 2035 guidelines.
2 |
VDFOG102 |
© Danfoss |
10/2012 |
Danfoss Heating Solutions |
Data Sheet |
Steel Valve with Air-Vent for Convectors in Two-Pipe Heating Systems |
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Capacities without Convectors
Capacities at Xp = 2K with Danfoss radiator thermostats are measured without convector and connection fittings.
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013G1810 RA-N |
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1 |
2 |
3 |
4 |
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5 |
6 7 N |
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10 |
1 |
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100 |
8 |
0,8 |
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80 |
6 |
0,6 |
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60 |
5 |
0,5 |
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50 |
4 |
0,4 |
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40 |
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0,3 |
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30 |
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0,2 |
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20 |
p |
p |
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p |
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[mwg ] |
[bar ] |
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[kPa ] |
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1 |
0,1 |
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10 |
0,8 |
0,08 |
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8 |
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0,6 |
0,06 |
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6 |
0,5 |
0,05 |
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5 |
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0,4 |
0,04 |
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4 |
0,3 |
0,03 |
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3 |
0,2 |
0,02 |
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2 |
0,1 |
0,01 |
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1 |
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5 |
7 |
10 |
20 |
30 |
40 50 |
70 |
100 |
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200 |
300 |
400 |
500 |
700 |
1000 |
2000 |
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Q [l/h] |
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t=10 Co |
0,07 |
0,1 |
0,2 |
0,3 |
0,4 |
0,5 |
0,7 |
1 |
2 |
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4 5 |
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10 |
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20 |
kW |
t=15 Co |
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kW |
0,1 |
0,2 |
0,3 |
0,4 |
0,5 |
0,7 |
1 |
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4 5 |
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10 |
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20 |
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t=20 Co |
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kW |
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0,2 0,3 |
0,4 |
0,5 |
0,7 |
1 |
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3 4 |
5 |
7 |
10 |
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20 |
30 |
40 |
Danfoss Heating Solutions |
VDFOG102 |
© Danfoss |
10/2012 |
3 |