Balancing valve STVE 200-300
Areas of use
The balancing valve STVE is used to adjust and
balance the flow in heating systems.
Description
STVE is a flanged valve. The valve is equipped
with self-sealing measuring points on the flanges
of the valve.
The valve will be set to a flow or kv-value with
help of the wheel. To set the flow correctly use a
measuringinstrument.
To avoid turbulence which can affect the measuring accuracy, the valve should not be assembled
close to bends, branch lines and other valves
directly before or after the valve according to
the figure. The valve must be assembled with the
flow in the direction of the arrow to achieve the
correct measuring results.
Correspond to the pressure
equipment directive 97/23/EC
2D
5D
Technical data
Pressure class
PN 16
Max temperature
120°C
Min temperature
-20°C
Max closing pressure
200 kPa
Min pressuredrop
2 kPa
Recommended pressure drop at rated valve
5-10 kPa
Material
Grey (cast) iron
Gaskets EPDM
Composite material
Dimensions
Dim
200
250
300
C
A
600
730
850
B
343
406
483
C
480
525
535
Weight /kg
115
159
211
A
AB Markaryds Metallarmatur, Box 10, S-285 21 Markaryd
Phone +46 433 737 00 • Fax. +46 433 737 98 • [email protected] • www.mma.se
February 2014
DN 200
DN 250
DN 300
B
Pre-setting
By means of the wheel the valve is set at the desired
flow or kv-value according to the diagram.
Flow measuring
Accuracy is greatest when the valve is fully open. The
smaller the opening, the importance of manufacturing
tolerances increases, as variations in measurements are
then greater percentage-wise. It is better to choose a
valve that has a pre-set value above three turns.
kv-value
No turns
0,5
1
1,5
2
2,5
3
3,5
4
4,5
5
5,5
6
6,5
7
7,5
8
8,5
9
9,5
10
10,5
11
DN200
DN250
27,5
38,6
45,6
54,6
71,2
99,9
148,6
216,2
283,9
341,2
387,7
430,1
471,7
507,6
535,2
560,8
590,0
619,3
644,8
667,2
688,4
710,0
43,5 44,9
62,3 57,1
73,1 72,2
87,3 89,8
115,8 110,2
163,9 140,7
239,2 202,0
345,3 331,7
451,4 500,2
543,3 634,1
622,0 733,2
694,0 825,1
762,5 922,9
823,7 1017,8
876,3 1100,0
925,3 1169,7
974,4 1229,7
1022,4 1285,1
1067,8 1339,6
1110,2 1394,1
1150,1 1448,9
1187,5 1504,1
Ordering codes
February 2014
RSK no.
Art.no.
Name
Description
490 70 26
490 70 27
490 70 28
2256101
2256201
2256301
STVE 200
STVE 250
STVE 300
Flanged with measuring socket
Flanged with measuring socket
Flanged with measuring socket
We reserve the right to alter information without notice
AB Markaryds Metallarmatur, Box 10, S-285 21 Markaryd
Phone +46 433 737 00 • Fax. +46 433 737 98 • [email protected] • www.mma.se
DN300
10 000
250
4000
3500
200
3000
1
Setting, number of turns
10000
7000
7000
0.5
5000
5000
4000
2
4000
2000
3000
3000
100
2500
2500
2000
1
3
2000
1500
1500
1000
11,0
10,0
9,0
8,0
7,0
1000
1000
50
700
700
40
500
500
500
30
400
25
20
11,0
10,0
9,0
8,0
7,0
11,0
10,0
9,0
8,0
7,0
6,0
5,0
250
300
200
2
5,0
6
7
3
4,0
5,0
4,0
300
300
5
6,0
6,0
400
400
350
4
250
4
4,0
200
10
5
3,0
150
3,0
150
20
3,0
100
200
2,0
2,0
100
25
70
10
1,0
70
50
50
100
30
25
4
30
0,5
0,5
40
10
1,0
40
0,5
50
40
30
5
1,0
2,0
25
20
20
20
60
70
15
l/s
GPM
15
Cv
30
10
Kv
8"
10"
12"
ft.
100
kPa
We recommend a pressure drop at 5-10 kPa at rated valve.
AB Markaryds Metallarmatur, Box 10, S-285 21 Markaryd
Phone +46 433 737 00 • Fax. +46 433 737 98 • [email protected] • www.mma.se
February 2014
50
3