Flow Rate Chart
Comfort, Energy and Health Solutions 
Honeywell Limited 
1985 Douglas Drive North 
35 Dynamic Drive 
Golden Valley, MN 55422-3992 
Toronto, ON  M1V 4Z9 
Honeywell Inc. 
New VU Series 
‘QuickFit’ 
Actuator 
and Valves 
Valve 
Models:  VU52: 2-way, normally open valves. 
VU53: 2-way, normally closed valves. 
VU54: 3-way diverting valves 
Model 
Material: Valve body: forged brass. 
VU52
Drive shaft stem: brass. 
2-Way 
Ball plug: Buna-N rubber. 
Normally
O-ring seals: EPDM rubber. 
Open 
Service Medium  Suitable for hot and chilled water with 
VU53
up to 50% glycol.Not for use with potable water. 
2-Way 
Approvals:  CSA C/US Certified, LR1322 
Normally 
Closed
Dimensions: See Fig. 1. 
Actuator 
Models:  VU443 (120V/60Hz), VU843 (24V/60Hz) : for use 
VU54
with VU52, VU53 2-way valves only. 
3-Way 
VU444 (120V/60hz), VU844 (24V/60Hz): for use 
Diverting 
with VU54 3-way valves. 
Maximum Ambient @ Fluid Temperature Rating: 
Standard models (with class A motor): 
Suffix 
Type 
F 
N 
S 
F 
N 
S 
Pipe Connections 
Size End Fittings  Cv kv psi kPa 
1/2" Inverted Flare  3.5 3.0 20 138 
1/2" NPT (internal thread) 3.5 3.0 20 138 
3/4"-1" 8.0 7.0 10 69 
1/2"-3/4" Sweat  3.5  3.0  20  138 
3/4"-1" 8.0 7.0 10 69 
1/2" Inverted Flare  4.0 3.4 20 138 
1/2" NPT (internal thread) 4.0 3.4 20 138 
3/4"-1" 7.0 6.0 12 83 
1/2" Sweat  4.0 3.4 20 138 
3/4"-1" 7.0 6.0 12 83 
Flow 
Capacity* 
Rating 
* Lower flow capacities with higher closs-off pressures on request. 
104°F(40°C) ambient @ 200°F(94°C) fluid. 
Minimum Ambient Temperature: 34°F(1°C) 
Atmosphere: Non-corrosive, non explosive, condensing. 
Noise Rating: Low Noise - non obtrusive. 
Materials: 
Case: stainless steel. 
Cover: aluminum. 
Sector gear: reinforced with KEVLAR® brand fiber. 
Fig. 1  Mounting Dimensions in in. (mm): 
3/8
Valve Body Size  [A]  [B] 
(10) 
1/2" Sweat  1-5/16 (33)  1-5/16 (33) 
3/4" Sweat  1-3/8 (35)  1-11/16 (43) 
1" Sweat  1-11/16 (43)  1-11/16 (43) 
1/2" NPT/BSPT  1-3/8 (35)  1-15/16 (33) 
7/8 DIA.
(22) 
2-3/8
(60) 
3-3/4
(133)
15/32
1-1/2
(38) 
1
2 
(12) 
3/4" NPT/BSPT  1-11/16 (43)  1-7/16 (37) 
2 
1 
Height needed to remove actuator 
Opening for 1/2 in. conduit on opposite side 
1-3/4
(44)
2-1/8
(54) 
[B]
3-way
7/8 (23)
2-way 
B 
A
[A]
(Inverted Flare) 
of manual lever for all models 
Presorted Standard 
US Postage  
PAID 
Minneapolis, MN 
Permit #40 
Return Service Requested 
Maximum 
Closeoff* 
Pressure 
6A1521  7/00  RAJ  Printed in the USA  Printed on recycled paper containing 40% 
© Honeywell 2000 All rights reserved  preconsumer waste and 10% postconsumer waste. 
www.honeywell.com 


