4-way thermostat adaptable valves for two-pipes ... - Watts Industries

4-WAY THERMOSTAT ADAPTABLE VALVES
Flow rate/pressure drop charts
120B - DN 1/2" - 3/4"
pos 3 Kv 0.65
pos 4 Kv 0.73
5
pos 2 Kv 0.55
pos 6 Kv 0.81
[ kPa ]
pos 1 Kv 0.30
A Kv 0.88
[ m bar ] [ mm w.g. ]
20
200
2000
10
8
100
80
1000
800
5
4
50
40
500
400
PRESSURE DROP
3
2
1
0.8
0.5
30
20
10
5
300
200
100
50
0.3
3
30
0.2
2
20
0.1
1
10 20 30 50 100 200 300 500 1000 2000 3000 [ l/h ]
10
0.01 0.02 0.03 0.05 0.1 0.2 0.3 0.5 1 2 3
3
[ m /h ]
FLOW RATE
With actuator 148
120B - DN 1/2" - 3/4"
BP 3K=Kv 0.7
BP 2K=Kv 0.6
[ kPa ]
BP 1K=Kv 0.36
[ m bar ][ mm w.g. ]
20
200
2000
10
8
100
80
1000
800
PRESSURE DROP
5
4
3
2
1
0.8
0.5
50
40
30
20
10
5
500
400
300
200
100
50
0.3
3
30
0.2
2
20
0.1
1
10 20 30 50 100 200 300 500 1000 2000 3000 [ l/h ]
10
0.01 0.02 0.03 0.05 0.1 0.2 0.3 0.5 1 2 3
3
[ m /h ]
FLOW RATE