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[23] BALANCING VALVES
Variable Balancing Valve
Variable orifice bronze double
regulating valve
Fig. 9505, with test points
Material List
Specifications
PART
MATERIAL
Thread F/F
ISO 228
Body
Bronze
Design
BS7350
Balancing cone
DR Brass
Working Pressure
2500kPa up to 80°C
Gasket Disc
PTFE
2000kPa up to 100°C
Disc O-ring
EPDM Perox
Working Temperature **
-10°C - 130°C
Disc Stem
DR Brass
Stem O-ring
EPDM Perox
Union
DR Brass
Stem
Brass
Bonnet
DR Brass
Stop spring ring Spring Steel
Screw
Screw
Handwheel
ABS (blue)
Nut
Steel
Test point / plug
DR Brass
Tie
Polyprop
** Below 0°C only for water with added
antifreezing fluids
** Over 100°C only for water with additives
avoiding boiling
Variable Balancing Valve
AAP
CODE
IMPERIAL
SIZE
H L
B V
APPROX.
KG/PC
Flow Range
(l/s)
BAL15
1/2
90 90 17.5 70
0.5
.062 - .148
BAL20
3/4
90 102 18
70
0.56
.138 - .325
BAL25
1
90 110 19
70
0.7
.258-.603
±%
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
0 1 2 3 4 5 6 7 8 9
15 14
13
12
11
10
Accuracy on normal K v
Handwheel position
1 3