VU52; VU53; VU54 Fan Coil Valves
The VU52, VU53, and VU54 high pressure zone valves are
used to control the flow of hot or chilled water in commercial
HVAC equipment such as fan coil units, terminal reheat coils,
and convectors.
IMPORTANT
These valves are not for use in systems containing
dissolved oxygen.
SPECIFICATIONS
Models:
VU52: 2-way, normally open.
VU53: 2-way, normally closed.
VU54: 3-way diverting or mixing.
Maximum Temperature:
Standard Models (with Class A motor):
200° F (93° C) fluid @ 125° F (52° C) ambient.
Minimum Fluid Temperature: 34° F (1° C) for all models.
Maximum Operating Pressure Rating: 300 psi (2000 kPa),
PN20.
Flow Characteristics: Quick opening for on-off application.
Material:
Valve body: forged brass.
Drive shaft stem: brass.
Ball plug: Buna-N rubber.
O-ring seals: EPDM rubber.
Service Medium:
Suitable for hot and chilled water with up to 50% glycol.
Not for use with potable water or steam.
Dimensions: See Fig. 1.
Approvals: CSA C/US Certified.
Valve Styles, Sizes, Flow Capacity Rating (Cv) & Maximum
Close-off Pressure Rating (psi):
Pipe
Connections
Model
Suffix
End
Type
Fittings
VU52
2-way
normally
N
NPT
open
(internal)
VU53
S
2-way
Sweat
normally
closed
S
Sweat
VU54
3-way
N
NPT
diverting
(internal)
mixing
S
Sweat
NOTE: Not all body styles are offered for sale in all markets.
Use VU443/843 actuators ONLY with VU53 2-way valve
bodies. Water hammer may result and actuator life will be
shortened if used on VU54 3-way body.
Use VU444/844 on either VU52 or VU54 valve bodies. Close-
off pressure ratings will be reduced if used with VU53.
PRODUCT DATA
Flow
Maximum
Capacity
Close-off
Rating
Pressure
Size
Cv
Kv
psi
kPa
1/2"
1.0
0.9
50
345
1/2"
2.3
2.0
30
207
1/2"
3.5
3.0
20
138
3/4"
3.5
3.0
20
138
3/4"
5.0
4.3
12
3/4"
8.0
6.8
10
1"
8.0
6.8
10
1/2"
1.5
1.3
28
193
1/2"
3.0
2.6
28
193
1/2"
4.4
3.8
20
138
3/4"
7.0
6.0
12
1"
7.0
6.0
12
Put Bar Code Here
95C-10884EFS-01
83
69
69
83
83