Danfoss Steel valve for convectors Data sheet
Data sheet |
Steel valve for convectors |
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in one-pipe heating systems |
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Application |
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The steel valve is designed for welding into con- |
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vectors by the manufacturer. The complete valve |
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consists of a steel valve body and a large capacity |
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valve insert with fixed flow through the radiator. |
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The insert has connection for all Danfoss RA 2000 |
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thermostatic sensors. |
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The flow capacity of this valve is designed for |
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one-pipe heating systems. |
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Ordering
and technical data
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Code no. |
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Valve insert with RA 2000 sensor connection |
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013G8680 |
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Steel valve body, straight pattern, welding connections |
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013L1965 |
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Spare part: Gland seal for valve insert, 10 pcs/pack |
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013L0669 |
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Spare part: Cover cap, green |
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013G8469 |
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Type |
Sensor con- |
Differerential pressure 1) |
Test |
Work. |
Max. water |
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Code no. |
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nection |
Recomm. |
Technical |
pressure |
pressure |
temperature |
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RA-G |
RA 2000 |
0.05 - 0.1 bar |
0.15 bar |
16 bar |
10 bar |
120˚ C |
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013G8680 |
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1) 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 0.3 to 0.35 bar. The differential pressure can be reduced by the use of the Danfoss differential pressure regulators.
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P-band (K) |
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kvs |
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RA-G BIV 013G8680, kv-value2) |
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0.5 |
1.0 |
1.5 |
2.0 |
3.0 |
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(m3/h at ∆p =1 bar) |
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0.55 |
1.11 |
1.63 |
2.14 |
3.07 |
4.56 |
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2) The kv-value indicates the flow volume (Q) in m3/h at a given lift and a pressure drop (p) across the valve at 1 bar.
kv = Q / √∆p. The kvs-value states the flow Q at a maximum lift, i.e. at fully open valve. If a remote temperature adjuster is used, the P-band is increased by a factor of 1.1.
DKCD
VDTVR202 |
© Danfoss 07/2009 |
1 |
Data Sheet |
Steel valve for convectors in one-pipe heating systems |
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Dimensions
Materials in contact with water
Valve body |
Steel |
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Valve top |
Ms 58 |
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Valve seat |
PPS |
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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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To avoid calcification and corrosion, it is important for the composition of the circulating water to comply with the VDI 2035 guidelines.
2 |
VDTVR202 |
© Danfoss 07/2009 |
DKCD
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