Data Sheet
Flow directors for aluminium segment radiators to be used with RA-N integrated valves
Application
Code Nos. and Technical
Data
Flow director 013G1523 / 013G1524
Flow director
Flow director type
For aluminium/bi-metal
segment radiators
For aluminium/bi-metal
segment radiators
The Danfoss flow director is designed to be
used with integrated valves type RA-N
013G1382 for incorporation into aluminium or
bi-metal segment radiators from different
radiator manufactures.
Aluminium and bi-metal segment radiators are
constructed by a series of elements, which are
joined together with nipples. The first segment
is used as inlet pipe, while return is through the
bottom of the second segment.
When integrated valves are used with segment
radiators, the flow needs to be directed
correctly through the valve to avoid noise
problems. This is made with the flow director.
Connection
radiator
1”, RH thread ½” 120 °C 013G1523
1”, LH thread ½” 120 °C 013G1524
Connection
integr. valve
Max. water
temperature
Code no.
Valve for flow directors
Valve type
For Danfoss RA
type sensors
1) 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.
Pre-setting values, flow director + valve
Flow director + valve Presetting
Flow director + RA 013G1382 int. valve 0.13 0.18 0.24 0.30 0.36 0.44 0.53 0.63 0.68
Differential pressure
Recom. Technical
0.05-0.2 bar 0.6 bar 16 bar 10 bar 120 °C 013G1382
1)
Test pressure Work. pressure
kv-value
1 2 3 4 5 6 7 N N
Max. water
temp.
2) 3)
Code no.
k
vs
Danfoss Heating Solutions VDCNA402 © Danfoss 02/2011 1
G 1/2” ISO 228/1
G 1” ISO 228/1 (013G1523)
G 1” ISO 228/1 LH (013G1524)
1
12.7
25
73.7
77±0.75
10.6
Ø44
32
Ø25.3 ± 0.15
3
2
3
Ø11.95
25.3
8.3
Ø8.5
25
5
4
Ø32.4 ± 0.3
Data Sheet Flow directors for aluminium segment radiators - to be used with RA-N integrated valves
2) kv-values indicate the flow volume (Q) in m³/h at a pressure loss (Δp) 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 kvs values indicate the valve
capacity, when the valve is fully open.
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).
Accessories and Spare Parts
Design and Dimensions
For flow director
Product Code no.
Open connection nipple - to be used with flow director 013G1523 013G1506
Closed connection nipple 013G1507
Open connection nipple - to be used with flow director 013G1524 013G1548
Closed connection nipple 013G1549
For RA-N 013G1382 integrated valve
Gland seal 013G0290
Protection cap (red) 013L0951
Flow director 013G1523 / 013G1524
Connection nipples Flat gasket
NB: Not supplied by Danfoss.
2 VDCNA402 © Danfoss 02/2011 Danfoss Heating Solutions
Ø 0.2 A
G1” ISO 228/1
G1” ISO 228/1 LH
2
1
80 ± 1
68 ± 2.5
min. 18
A
min. 18
Ø 34 ± 0.3
45˚ ± 5˚
SCALE 5:1
Data Sheet Flow directors for aluminium segment radiators - to be used with RA-N integrated valves
Materials
1. Plug Nickel plated
steel
2. Flow director
body
3. O-ring EPDM
4. Nipple Steel or brass
5. Flat ring EPDM
Radiator dimensions
PPS
Assembly Guide
1. Thread for reduction plug
2. Thread for assembly nipple
Flow director 013G1523 and open nipple (upper
connection) 013G1506 is for radiators with RH
thread.
Flow director 013G1524 and open nipple (upper
connection) 013G1548 is for radiators with LH
thread.
Closed (lower connection) nipple can be either
013G1507 or 013G1549, depending on assembly
side.
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1
2
3
4 5
1
2
3
4
5
Data Sheet Flow directors for aluminium segment radiators - to be used with RA-N integrated valves
Radiator with LH thread - left side mounting Radiator with RH thread - right side mounting
1. Open nipple 013G1548
2. LH thread
3. Flow director 013G1524
4. Closed nipple 013G1549
5. Closed nipple 013G1507
1. Open nipple 013G1506
2. RH thread
3. Flow director 013G1523
4. Closed nipple 013G1549
5. Closed nipple 013G1507
4 VDCNA402 © Danfoss 02/2011 Danfoss Heating Solutions
[bar]
[mwg]
Q [l/h]
kW
kW
kW
10
8
6
5
4
3
2
∆p
1
0.8
0.6
0.5
0.4
0.3
0.2
0.1
1
0.8
0.6
0.5
0.4
0.3
0.2
∆p
0.1
0.08
0.06
0.05
0.04
0.03
0.02
0.01
1 2 3 4 5 6 7 N
100
80
60
50
40
30
20
∆p
10
8
6
5
4
3
0.2
1
[kPa]
5 7 10 20 30 40 50 70 100 200 300 400 500 700 1000 2000
∆ t = 10 ˚C
∆ t = 15 ˚C
∆ t = 20 ˚C
0.07 0.1 0.2 0.3 0.4 0.5 0.7 1 2 3 4 5 7 10 20
0.1 0.2 0.3 0.4 0.5 0.7 1 2 3 4 5 7 10 20 30
0.2 0.3 0.4 0.5 0.7 1 2 3 4 5 7 10 20 30 40
Data Sheet Flow directors for aluminium segment radiators - to be used with RA-N integrated valves
Capacities, Flow Director
with Integrated Valve
Flow director 013G1523/013G1524 + integrated valve 013G1382
Danfoss Heating Solutions VDCNA402 © Danfoss 02/2011 5
Data Sheet Flow directors for aluminium segment radiators - to be used with RA-N integrated valves
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Data Sheet Flow directors for aluminium segment radiators - to be used with RA-N integrated valves
Danfoss Heating Solutions VDCNA402 © Danfoss 02/2011 7
Data Sheet Flow directors for aluminium segment radiators - to be used with RA-N integrated valves
Danfoss A/S
Heating Solutions
Haarupvaenget 11
8600 Silkeborg
Denmark
Phone:+45 7488 8000
Fax: +45 7488 8100
Email: heating.solutions@danfoss.com
www.heating.danfoss.com
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective
companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
8 VDCNA402 © Danfoss 02/2011 Danfoss Heating Solutions
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