Fan Coil Valves
2
2
1
1
VU53 VALVE WITH VU448 ACTUATOR
VU53 AND VU54 VALVE WITH ACTUATOR
VU5 ACTUATOR
2-3/8
(60)
7/8 DIA.
(22)
1-1/2
(38)
3-3/4
(133)
15/32
(12)
3/8
(10)
1-3/4
(44)
1-3/4
(44)
A
A
B
AB
7
3/8
(10)
A
2-1/8 (54)
(INVERTED
FLARE)
1-3/4
(44)
1-3/4
(44)
B
3-WAY
7/8 (22)
2-WAY
VALVE BODY SIZE A B
1/2 IN. SWEAT 1 5/6 (33) 1 5/6 (33)
3/4 IN. SWEAT 1 3/8 (35) 1 11/16 (43)
1 IN. SWEAT 1 11/16 (43) 1 11/16 (43)
1/2 IN. NPT 1 3/8 (35) 1 5/16 (33)
3/4 IN. NPT 1 11/16 (43) 1 7/16 (37)
1 IN. NPT 1 11/16 (43) 1 7/16 (37)
HEIGHT NEEDED TO REMOVE ACTUATOR OR COVER
OPENING FOR 1/2 IN. CONDUIT ON OPPOSITE SITE OF
MANUAL LEVER FOR ALL MODELS.
M18261A
VU52; VU53 Two-way Fan Coil Valves
Two-way Fan Coil Valves, the VU53 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.
• Compact construction for easy installation
• Fits under the cover of most baseboard convectors with
• VU52 and VU53 provide 2-way, straight-through control of water
• Available in normally closed (VU53) or normally open (VU52) configurations
• 300 psi (2,000 kPa, PN20) operating pressure rating
• Patented ball seal provides long service life, soft close off
• Triple O-ring seal provides three lines of defense against corrosion
• Quick opening flow curve
• Available with NPT end connections for iron or steel piping
Dimensions in inches (millimeters)
actuator fitted to valve body
and water leakage around drive shaft
Commercial
Valve Type: Fan Coil Valve
Actuation: Must be purchased separately
Flow Characteristics: Quick opening
Body Pattern: Two-way, Straight-through
Controlled Medium: Chilled or hot water with up to 60% Glycol
Maximum Safe Operating Pressure: 300 psig (2068 kPa)
Ambient Temperature Range: 34 F to 125 F at 200 F Fluid
(1 to 52 C @ 94 C Fluid)
Materials
(Body): Brass
(Stem): Brass
(Seat): Brass
(Plug/Ball/Disc): Bun a-N rubber
(Packing): EPDM rubber
Approvals
Canadian Standards Association: CSA C/US
70-6910 571
Components
Fan Coil Valves
Dimensions, A
Valve Size
Flow
Capacity
to B ports End
to End
Product Number
VU52N1001/U 3/4 in. DN20 8.0 Cv 7.0 kvs 3 3/8 in. 86 mm 1 11/16 in. 43 mm Female
VU52N1019/U 1/2 in. DN15 3.5 Cv 3.0 kvs 2 3/4 in. 70 mm 1 3/8 in. 35 mm Female
VU52N1027/U 1/2 in. DN15 1.0 Cv 0.9 kvs 2 3/4 in. 70 mm 1 3/8 in. 35 mm Female
VU52N1035/U 1/2 in. DN15 2.4 Cv 2.1 kvs 2 3/4 in. 70 mm 1 3/8 in. 35 mm Female
VU52S2002/U 1/2 in. DN15 1.0 Cv 0.9 kvs 2 5/8 in. 66 mm 1 5/16 in. 33 mm Sweat Normally
VU52S2010/U 1/2 in. DN15 2.4 Cv 2.1 kvs 2 5/8 in. 66 mm 1 5/16 in. 33 mm Sweat Normally
VU52S2028/U 1/2 in. DN15 3.5 Cv 3.0 kvs 2 5/8 in. 66 mm 1 5/16 in. 33 mm Sweat Normally
VU52S2036/U 3/4 in. DN20 3.5 Cv 3.0 kvs 2 3/4 in. 70 mm 1 3/8 in. 35 mm Sweat Normally
VU52S2044/U 3/4 in. DN20 5.0 Cv 4.3 kvs 2 3/4 in. 70 mm 1 3/8 in. 35 mm Sweat Normally
VU52S2051/U 3/4 in. DN20 8.0 Cv 7.0 kvs 2 3/4 in. 70 mm 1 3/8 in. 35 mm Sweat Normally
VU53N1009/U 1/2 in. DN15 3.5 Cv 3.0 kvs 2 3/4 in. 70 mm 1 3/8 in. 35 mm Female
VU53N1017/U 3/4 in. DN20 8.0 Cv 7.0 kvs 3 3/8 in. 86 mm 1 11/16 in. 43 mm Female
VU53N1026/U 1 in. DN25 8.0 Cv 7.0 kvs — — — — Female
VU53N1033/U 3/4 in. DN20 3.5 Cv 3.0 kvs 3 3/8 in. 86 mm 1 11/16 in. 43 mm Female
VU53N1041/U 1/2 in. DN15 1.0 Cv 0.9 kvs 2 3/4 in. 70 mm 1 3/8 in. 35 mm Female
VU53N1058/U 1/2 in. DN15 2.4 Cv 2.1 kvs — — — — Female
VU53N1066/U 3/4 in. DN20 5.0 Cv 4.3 kvs 3 3/8 in. 86 mm 1 11/16 in. 43 mm Female
VU53S2000/U 1 in. DN25 8.0 Cv 7.0 kvs 3 3/8 in. 86 mm 1 11/16 in. 43 mm Sweat Normally
VU53S2018/U 1/2 in. DN15 1.0 Cv 0.9 kvs 2 5/8 in. 66 mm 1 5/16 in. 33 mm Sweat Normally
VU53S2026/U 1/2 in. DN15 2.4 Cv 2.1 kvs 2 5/8 in. 66 mm 1 5/16 in. 33 mm Sweat Normally
VU53S2034/U 1/2 in. DN15 3.5 Cv 3.0 kvs 2 5/8 in. 66 mm 1 5/16 in. 33 mm Sweat Normally
VU53S2042/U 3/4 in. DN20 3.5 Cv 3.0 kvs 2 3/4 in. 70 mm 1 3/8 in. 35 mm Sweat Normally
VU53S2059/U 3/4 in. DN20 8.0 Cv 7.0 kvs 2 3/4 in. 70 mm 1 3/8 in. 35 mm Sweat Normally
VU53S2075/U 3/4 in. DN20 5.0 Cv 4.3 kvs 2 3/4 in. 70 mm 1 3/8 in. 35 mm Sweat Normally
Dimensions, Center
Line of A&B port to
end of AB port
Connection
Typ e
NPT
NPT
NPT
NPT
NPT
NPT
NPT
NPT
NPT
NPT
NPT
Valve
Action
Normally
Open
Normally
Open
Normally
Open
Normally
Open
Open
Open
Open
Open
Open
Open
Normally
Closed
Normally
Closed
Normally
Closed
Normally
Closed
Normally
Closed
Normally
Closed
Normally
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Maximum
Close-off
Pressure
Used With(inch) DN (Cv) (Kv) (inch) (mm) (inch) (mm) (psi) (kPa)
10 psi 69 kPa VU444 Actuator,
20 psi 138 kPa VU444 Actuator,
50 psi 345 kPa VU444 Actuator,
30 psi 207 kPa VU444 Actuator,
50 psi 345 kPa VU444 Actuator,
30 psi 207 kPa VU444 Actuator,
20 psi 138 kPa VU444 Actuator,
20 psi 138 kPa VU444 Actuator,
15 psi 103 kPa VU444 Actuator,
10 psi 69 kPa VU444 Actuator,
20 psi 138 kPa VU443 Actuator,
10 psi 69 kPa VU443 Actuator,
10 psi 69 kPa VU443 Actuator,
20 psi 138 kPa VU443 Actuator,
50 psi 345 kPa VU443 Actuator,
30 psi 207 kPa VU443 Actuator,
15 psi 103 kPa VU443 Actuator,
10 psi 69 kPa VU443 Actuator,
50 psi 345 kPa VU443 Actuator,
30 psi 207 kPa VU443 Actuator,
20 psi 138 kPa VU443 Actuator,
20 psi 138 kPa VU443 Actuator,
10 psi 69 kPa VU443 Actuator,
15 psi 103 kPa VU443 Actuator,
VU844 Actuator
VU844 Actuator
VU844 Actuator
VU844 Actuator
VU844 Actuator
VU844 Actuator
VU844 Actuator
VU844 Actuator
VU844 Actuator
VU844 Actuator
VU843 Actuator
VU843 Actuator
VU843 Actuator
VU843 Actuator
VU843 Actuator
VU843 Actuator
VU843 Actuator
VU843 Actuator
VU843 Actuator
VU843 Actuator
VU843 Actuator
VU843 Actuator
VU843 Actuator
VU843 Actuator
572 customer.honeywell.com 70-6910