Honeywell VPI Series User manual

VPI PRESSURE INDEPENDENT
CONTROL VALVES AND ACTUATORS
INSTALLATION INSTRUCTION
® U.S. Registered Trademark.
Copyright © 2020 Honeywell Inc. All Rights Reserved. Printed in USA 31-00383-01, Rev A.
APPLICATION
Honeywell pressure independent control valve (PICV) is
used in heating and cooling systems in applications
with Air Handling Units, Fan Coil Units, chilled ceilings,
zone control, or other terminal unit applications.
Honeywell VPI series provides modulating control with
full authority regardless of any fluctuations in the
differential pressure of the system. Honeywell VPI
series combines an externally adjustable automatic
balancing valve, a differential pressure control valve,
and a full authority modulating control valve.
Honeywell VPI series makes it simple to achieve 100%
control of the water flow in the building while creating
high comfort and energy savings at the same time. An
additional benefit is that no balancing is required if
further stages are added to the system, or if the
dimensioned capacity is changed. Energy-saving due
to optimal control, lower flow, and pump pressure.
Maximized ΔT due to faster response and increased
system stability
Application Notes
Valve sizing is important for correct system operation.
Undersized valves do not have sufficient capacity at
maximum load.
Proper Use
These valves are intended for use in chilled water and
hot water closed-loop applications only, with a media
temperature range of -20ºC to +120ºC (-4ºF to
+248ºF), and static pressures up to 580psi. Not
suitable for oil, combustible gases, or high-
temperature steam.
These valves are to be operated with the appropriate
and compatible Honeywell actuators only. Refer VPI
series PICV Product Datasheets for more details on
valve and actuators compatibility.
Water should be properly filtered, treated, and
conditioned for good operating performance, and
according to according to VDI 2035 with up to 50 %
Glycol (oxygen concentration less than 0.2 g/m3, pH
8...9.5; Fe<0.5 mg/kg; Cu<0.1 mg/kg). The installation
of strainers and filters is recommended. Do not use
manual balancing valves.
IMPORTANT: The presence of excessive iron oxide
(red rust) in the system voids the valve warranty.
Effective Flow Rate
The built-in differential pressure regulator makes fluid
flow through the valve independent of changes in
supply. The pressure regulator virtually eliminates
cavitation in the valve and decouples the control valve
from the effects of piping components such as
reducers and elbows.
Pressure independent control valves are sized to match
design coil flow regardless of coil connection size.
These valves eliminate the need to balance the system
for proper flow and allow chillers to be operated at
design temperature differential for maximum
efficiency at every load condition.
Flow Characteristic
The VPI series Pressure Independent Control Valves
have: Linear flow characteristic and can be converted
to an equal percentage in the actuator.

VPI Pressure Independent Control Valves & Actuators
31-00383-01 2
DECLARATION OF REACH CONFORMITY
Article 33 Communication
REGULATION (EC) NO 1907/2006 [REACH]
According to Article 33 of Reach Regulation be informed that these products may contain lead (CAS: 7439-92-1) up
to 2.0-2.5% in any brass used in valve housings, headnuts, p/t plugs, flushing caps etc.
PREREQUISITE
When installing this product...
1. Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous
condition.
2. Check ratings given in instructions and on the product to ensure the product is suitable for your application.
3. The installer must be a trained, experienced service technician.
4. After installation is complete, check out product operation as provided in these instructions.
Preparation
CAUTION
Equipment Damage Hazard
Foreign particles like dirt and metal chips can damage the valve seat and diaphragm.
For trouble-free operation of the product, good installation practice must include initial system flushing and chemical
water treatment. Clean the lines upstream of particles larger than 1/16 inch diameter (welding slag, pipe scale, sand,
and other suspended particulate).
Do not use boiler additives, solder flux, and wetted materials which are petroleum-based or contain mineral oil,
hydrocarbons, or ethylene glycol acetate. Compounds that can be used, with a minimum 50% water dilution, are
diethylene glycol, ethylene glycol, and propylene glycol (antifreeze solutions).
If installing these valves in an addition to, or retrofitting an existing building, do not assume that the fluid in the existing
piping meets these criteria.
1. Before installing the valves, flush the system.
2. It is recommended to install strainers in front of the valves to protect against clogging due to foreign particles.
Strainer baskets should be installed, checked and cleaned as required during flushing and normal operation.
3. Use clean water according to the guidelines in VDI 2035. VDI 2035 recommends water quality as per
conductance value <100 μS/cm, oxygen content of up to 0.1 mg/l, pH of 8.2-10.0 and requires low turbidity
<1FTU and consequently low content of alkaline earths.
4. It is recommended to treat water with chemical to achieve required water quality. If using any additives, please
contact Honeywell for guidance.

VPI PRESSURE INDEPENDENT CONTROL VALVES & ACTUATORS
3 31-00383-01
MECHANICAL INSTALLATION
Installation for DN15-32
IMPORTANT: Hold valve with a pipe wrench by
hexagonal fitting ONLY. Do NOT handle the valve
body with the pipe wrench; product damage may
result.
Refer VPI series PICV Product Datasheets for more
details on valve and actuator dimensions.
1. Clean the lines upstream of particles larger than
1/16 in. diameter (welding slag, pipe scale and
other contaminants) to properly flush the system.
2. Proceed with installation once the system
specifics (expansion/contraction of the system
and its medium as well as operating pressures) are
within tolerances.
3. Eliminate air from the system.
4. See, Figure 1 to familiarize yourself with the valve
and its components. The Valve body (D) is the
housing marked with an arrow to show flow
direction. The Flow regulator (C) which is pre-
installed in valve body, regulates flow. Pressure
ports (A) facilitates user to gauge pressure across
ends. The Plugs (B) comes with valve models
without pressure ports. See VPI series PICV
Product Datasheets for details on models with and
without pressure ports.
Figure 1. DN15-32 Valve Components
IMPORTANT: Flow arrow must point in the direction
of the flow for proper operation. Valves must be
installed avoiding unnecessary pull or twist in the
valve housing.
5. Install the valve housing with the flow directional
arrow pointing in the correct direction.
6. For threaded connections please clear threads on
both valve and piping of debris. Honeywell
recommends thread or pipe sealant (Permabond
A1044 or equivalent). When using Teflon tape, it is
recommended to use 4-6 rounds of tape applied
tightly in clockwise rotation. When using hemp as
pipe sealant, ensure no strands are left in the valve
or piping.
Flow Setting
The Flow regulator is provisioned with dial with scale
settings to allow user to set desired flow rate. For more
information about flow rate as per dial settings, see
Table 1. Flow Chart for DN15-32. The procedure for
scale setting is as follows:
1. Set the desired flow rate by adjusting scale setting
of the dial with a special adjustment key.
Figure 2 Flow Setting
2. For DN15/20 (LF) and DN32 valve models, large
white digits, numbered 1 to 5, indicate full turns
and digits from small sub-dial, numbered 0 to 9,
indicate 1/10 of full turn.
Figure 3 Dial Gauge for DN 15/20 (LF) and DN32
3. For DN15/20/25 (HF) valve models, scale is
opposite. Here large white digits, numbered 0 to 9,
indicate 1/10 of full turn and small digits from
sub-dial, numbered 0 to 5, indicate full turn.
Figure 4 Dial Gauge 3. For DN15/20/25 (HF)
4. Install the compatible and required actuator as per
application and/or system design. See Installation
of Actuators compatible with DN 15-50 for more
details on how to install the actuator.

VPI Pressure Independent Control Valves & Actuators
31-00383-01 2
Flow Setting Chart for DN 15 -32
Table 1. Flow Chart for DN15-32
DN15LF-DN20LF
DN15HF-DN25HF
DN32
Setting
l/sec
l/hr
GPM
l/sec
l/hr
GPM
l/sec
l/hr
GPM
0.0178
64
0.282
-
-
-
0.240
865
3.81
1.0
0.0393
142
0.624
-
-
-
0.282
1010
4.46
1.1
0.0580
209
0.920
-
-
-
0.322
1160
5.10
1.2
0.0743
268
1.180
-
-
-
0.361
1300
5.72
1.3
0.0887
319
1.41
-
-
-
0.399
1430
6.32
1.4
0.102
366
1.61
0.172
620
2.73
0.435
1570
6.90
1.5
0.113
408
1.80
0.200
720
3.17
0.471
1700
7.47
1.6
0.124
446
1.96
0.228
820
3.61
0.506
1820
8.02
1.7
0.134
482
2.12
0.258
930
4.10
0.540
1940
8.56
1.8
0.143
516
2.27
0.294
1060
4.67
0.573
2060
9.08
1.9
0.152
549
2.42
0.325
1170
5.15
0.605
2180
9.59
2.0
0.161
580
2.56
0.350
1260
5.55
0.636
2290
10.1
2.1
0.170
611
2.69
0.375
1350
5.95
0.667
2400
10.6
2.2
0.178
641
2.82
0.396
1430
6.28
0.696
2510
11.0
2.3
0.186
671
2.95
0.417
1500
6.61
0.725
2610
11.5
2.4
0.194
700
3.08
0.439
1580
6.96
0.753
2710
11.9
2.5
0.202
728
3.21
0.458
1650
7.27
0.780
2810
12.4
2.6
0.210
756
3.33
0.481
1730
7.62
0.807
2900
12.8
2.7
0.218
783
3.45
0.500
1800
7.93
0.832
3000
13.2
2.8
0.225
810
3.56
0.522
1880
8.28
0.858
3090
13.6
2.9
0.232
835
3.68
0.542
1950
8.59
0.882
3180
14.0
3.0
0.239
860
3.79
0.550
1980
8.72
0.906
3260
14.4
3.1
0.245
883
3.89
0.558
2010
8.85
0.930
3350
14.7
3.2
0.252
906
3.99
0.567
2040
8.99
0.953
3430
15.1
3.3
0.257
927
4.08
0.575
2070
9.12
0.975
3510
15.5
3.4
0.263
946
4.17
0.583
2100
9.25
0.997
3590
15.8
3.5
0.268
965
4.25
0.597
2150
9.47
1.02
3670
16.1
3.6

VPI PRESSURE INDEPENDENT CONTROL VALVES & ACTUATORS
3 31-00383-01
Replacement of Flow regulator
The Flow regulator are engineered and designed with more life span. Follow below procedures in case if the old flow
regulator needs replacement with the new one.
Procedure to remove the Flow Regulator
The procedure to remove Flow Regulator is as follows:
1. Remove the installed actuator (if any) as stated in Procedure to remove the Actuator.
2. Isolate the valve.
3. Use the pipe wrench or appropriate tool to rotate Flow Regulator in counterclockwise direction to remove from the
valve body. See Figure 5.
Figure 5. Removing Flow regulator from Valve body
Procedure to install the Flow Regulator
The procedure to install Flow Regulator is as follows:
1. Prior to installing the Flow regulator, the system should be properly flushed.
2. Insert the Flow Regulator in valve body and rotate with the pipe wrench or appropriate tool in Clockwise direction
to fit flow regulator in valve body. Follow the reverse sequence of steps shown in Figure above.
3. Open isolation valves slowly. Fast opening of isolation valves under high pressure may cause damage to the seat
or diaphragm of the Flow regulator.
4. Set the desired flow rate by adjusting the Flow Regulator with special adjustment key.
5. Install the actuator as stated in Procedure to install the Actuator.

VPI Pressure Independent Control Valves & Actuators
31-00383-01 2
Installation for DN40-50
IMPORTANT: Hold valve with a pipe wrench by hexagonal fitting ONLY. Do NOT handle the valve body with the pipe
wrench; product damage may result.
Refer VPI series PICV Product Datasheets for more details on valve and actuator dimensions.
The procedure to install DN 40-50 valve is as follows:
1. Clean the lines upstream of particles larger than 1/16 in. diameter (welding slag, pipe scale and other
contaminants) to properly flush the system.
2. Proceed with installation once the system specifics (expansion/contraction of the system and its medium as well
as operating pressures) are within tolerances.
3. Eliminate air from the system.
4. See Figure 6 to familiarize yourself with the valve and its components. The Valve Body (A) is the housing marked
with an arrow to show flow direction. The Flow Regulator (B) which is fixed with valve body, regulates flow.
IMPORTANT: Do not disassemble or attempt to remove the Flow regulator from the valve body. Doing so may
damage the valve and will void warranty.
Pressure ports (C) facilitates user to gauge pressure across ends. The Plugs (D) comes with valve models without
pressure ports. See VPI series PICV Product Datasheets for more details on models with and without pressure
ports.
Figure 6 DN40-50 Valve Components
IMPORTANT: Flow arrows must point in the direction of the flow for proper operation.
5. Install the valve housing with the flow directional arrow pointing in the correct direction.
6. For threaded connections please clear threads on both valve and piping of debris. Honeywell recommends thread
or pipe sealant (Permabond A1044 or equivalent). When using Teflon tape, it is recommended to use 4-6 rounds
of tape applied tightly in clockwise rotation. When using hemp as pipe sealant, ensure no strands are left in the
valve or piping.
IMPORTANT: Never use mineral oil or petrol-based grease or oil on the O-rings.
7. Set the desired flow rate by adjusting scale setting of the dial with a special adjustment key.

VPI PRESSURE INDEPENDENT CONTROL VALVES & ACTUATORS
3 31-00383-01
Flow Setting for DN40-50
The Flow regulator is provisioned with dial with scale settings to allow user to set desired flow rate. For more
information about flow rate as per dial settings, see Table 2. Flow Settings Chart for DN40-50. The procedure for scale
setting is as follows:
1. Set the desired flow rate by adjusting scale setting of the dial with a special adjustment key.
Figure 7 Flow setting for DN 40- 50
2. For DN40/50, large white digits numbered 1 to 5 including in-between positions showed by dots (one dot for
every 0.1 positions). The specific position is defined by a sign mark on top of the housing.
Figure 8 Dial Gauge for DN 40- 50
3. Install the compatible and required actuator as per application and/or system design.

VPI Pressure Independent Control Valves & Actuators
31-00383-01 4
Flow Setting Chart for DN40 –DN50
Table 2. Flow Settings Chart for DN40-50
DN40-DN50
Setting
l/sec
l/hr
GPM
0.528
1900
8.36
1.0
0.633
2278
10.0
1.1
0.738
2655
11.7
1.2
0.843
3033
13.3
1.3
0.947
3410
15.0
1.4
1.05
3787
16.7
1.5
1.16
4163
18.3
1.6
1.26
4537
20.0
1.7
1.36
4909
21.6
1.8
1.47
5279
23.2
1.9
1.57
5646
24.8
2.0
1.67
6011
26.4
2.1
1.77
6372
28.0
2.2
1.87
6730
29.6
2.3
1.97
7083
31.2
2.4
2.06
7432
32.7
2.5
2.16
7776
34.2
2.6
2.25
8115
35.7
2.7
2.35
8449
37.2
2.8
2.44
8777
38.6
2.9
2.53
9098
40.0
3.0
2.61
9413
41.4
3.1
2.70
9721
42.8
3.2
2.78
10021
44.1
3.3
2.86
10314
45.4
3.4
2.94
10599
46.6
3.5
3.02
10875
47.8
3.6
3.10
11142
49.0
3.7
3.17
11400
50.2
3.8
3.24
11649
51.3
3.9
3.30
11888
52.3
4.0
3.37
12116
53.3
4.1
3.43
12334
54.3
4.2
3.48
12540
55.2
4.3
3.54
12735
56.0
4.4
3.59
12919
56.8
4.5
3.64
13090
57.6
4.6
3.68
13249
58.3
4.7
3.72
13395
58.9
4.8
3.76
13527
59.5
4.9
3.79
13647
60.0
5.0

VPI PRESSURE INDEPENDENT CONTROL VALVES & ACTUATORS
5 31-00383-01
Installation of DN50-250
IMPORTANT: Hold threaded valve with a pipe wrench by hexagonal fitting ONLY. Do NOT handle the valve body with
the pipe wrench; product damage may result.
Refer VPI series PICV Product Datasheets for more details on valve and actuator dimensions.
The procedure to install for DN 50 –250 is as follows:
1. Clean the lines upstream of particles larger than 1/16 in. diameter (welding slag, pipe scale, and other
contaminants) to properly flush the system.
2. Proceed with installation once the system specifics (expansion/contraction of the system and its medium as well
as operating pressures) are within tolerances.
3. Eliminate air from the system.
4. Valves are marked to show flow direction, see Figure 9. Install the valve housing with the flow directional arrow
pointing in the correct direction.
Figure 9. Flow direction icon on DN50-250 valve
IMPORTANT: Flow arrows must point in the direction of the flow for proper operation.
5. Valves must be installed avoiding unnecessary pull or twist in the valve housing.
6. For flanged connections make sure if both flange surfaces are clear.
7. Flange ends are compatible with DIN steel flanges PN10, PN16, PN25, and/or PN40 according to EN1092-1 or
ANSI steel flanges class 150 and/ or 300 according to ASME B16.5. depending on the product ordered. Flanges
are not supplied by Honeywell.
See VPI series PICV Product Datasheets for more details on the flange selection of DN50-250 valves.
8. O-rings are supplied with the valve body and are used to seal connections. It is recommended to grease O-rings
with silicone grease.
IMPORTANT: Never use mineral oil or petrol-based grease or oil on the O-rings.
9. Please make sure these are properly placed in O-ring grooves on valve inlet and outlet, before installing the
housing.
10. Please note that DN200-250 (8”-10”) contains two O-ring grooves. Use the inner groove for DN200 / 8” flanges
and outer groove for DN250 / 10” flanges.
Figure 10. Groove location on DN200-250 valve
Install the compatible and required actuator as per application and/or system design. See Installation of Actuators
compatible with DN50 –250 for more details on how to install the actuator.

VPI Pressure Independent Control Valves & Actuators
31-00383-01 6
Flow Setting Chart for DN50-100
Table 3. Flow Setting Chart for DN50-100
DN50
DN65
DN80LF
DN80HF
DN100LF
DN100HF
l/sec
l/hr
GPM
l/sec
l/hr
GPM
l/sec
l/hr
GPM
l/sec
l/hr
GPM
l/sec
l/hr
GPM
l/sec
l/hr
GPM
2.57
9240
40.7
2.57
9240
40.7
3.55
12800
56.3
4.73
17000
75.0
4.73
17000
75.0
3.68
13300
58.3
2.81
10100
44.6
2.81
10100
44.6
3.85
13900
61.0
5.29
19000
83.8
5.29
19000
83.8
4.42
15900
70.0
3.05
11000
48.3
3.05
11000
48.3
4.13
14900
65.5
5.82
21000
92.3
5.82
21000
92.3
5.13
18500
81.3
3.27
11800
51.9
3.27
11800
51.9
4.41
15900
69.9
6.33
22800
100
6.33
22800
100
5.82
21000
92.3
3.49
12500
55.2
3.49
12500
55.2
4.67
16800
74.0
6.82
24500
108
6.82
24500
108
6.50
23400
103
3.69
13300
58.4
3.69
13300
58.4
4.92
17700
78.0
7.28
26200
115
7.28
26200
115
7.15
25700
113
3.88
14000
61.5
3.88
14000
61.5
5.16
18600
81.7
7.72
27800
122
7.72
27800
122
7.78
28000
123
4.06
14600
64.3
4.06
14600
64.3
5.38
19400
85.3
8.14
29300
129
8.14
29300
129
8.40
30200
133
4.23
15200
67.0
4.23
15200
67.0
5.60
20200
88.8
8.54
30700
135
8.54
30700
135
8.99
32400
142
4.39
15800
69.6
4.39
15800
69.6
5.81
20900
92.1
8.91
32100
141
8.91
32100
141
9.57
34400
152
4.54
16300
72.0
4.54
16300
72.0
6.01
21600
95.2
9.27
33400
147
9.27
33400
147
10.1
36400
160
4.68
16900
74.2
4.68
16900
74.2
6.19
22300
98.2
9.61
34600
152
9.61
34600
152
10.7
38400
169
4.82
17300
76.4
4.82
17300
76.4
6.37
22900
101
9.93
35700
157
9.93
35700
157
11.2
40200
177
4.94
17800
78.4
4.94
17800
78.4
6.54
23600
104
10.2
36800
162
10.2
36800
162
11.7
42100
185
5.06
18200
80.2
5.06
18200
80.2
6.71
24100
106
10.5
37800
167
10.5
37800
167
12.2
43800
193
5.17
18600
82.0
5.17
18600
82.0
6.86
24700
109
10.8
38800
171
10.8
38800
171
12.6
45500
200
5.28
19000
83.7
5.28
19000
83.7
7.00
25200
111
11.0
39700
175
11.0
39700
175
13.1
47100
207
5.38
19400
85.2
5.38
19400
85.2
7.14
25700
113
11.3
40500
178
11.3
40500
178
13.5
48700
214
5.47
19700
86.6
5.47
19700
86.6
7.28
26200
115
11.5
41300
182
11.5
41300
182
13.9
50200
221
5.55
20000
88.0
5.55
20000
88.0
7.40
26600
117
11.7
42000
185
11.7
42000
185
14.3
51600
227
5.63
20300
89.2
5.63
20300
89.2
7.52
27100
119
11.9
42700
188
11.9
42700
188
14.7
53000
233
5.70
20500
90.4
5.70
20500
90.4
7.63
27500
121
12.0
43400
191
12.0
43400
191
15.1
54300
239
5.77
20800
91.5
5.77
20800
91.5
7.74
27900
123
12.2
43900
194
12.2
43900
194
15.4
55600
245
5.84
21000
92.5
5.84
21000
92.5
7.84
28200
124
12.4
44500
196
12.4
44500
196
15.8
56800
250
5.90
21200
93.5
5.90
21200
93.5
7.94
28600
126
12.5
45000
198
12.5
45000
198
16.1
58000
255
5.96
21400
94.4
5.96
21400
94.4
8.03
28900
127
12.6
45500
200
12.6
45500
200
16.4
59100
260
6.01
21600
95.2
6.01
21600
95.2
8.12
29200
129
12.7
45900
202
12.7
45900
202
16.7
60200
265
6.06
21800
96.0
6.06
21800
96.0
8.20
29500
130
12.9
46300
204
12.9
46300
204
17.0
61200
269
6.10
22000
96.8
6.10
22000
96.8
8.28
29800
131
13.0
46700
205
13.0
46700
205
17.3
62100
274
6.15
22100
97.5
6.15
22100
97.5
8.36
30100
133
13.1
47000
207
13.1
47000
207
17.5
63000
278
6.19
22300
98.2
6.19
22300
98.2
8.44
30400
134
13.1
47300
208
13.1
47300
208
17.8
63900
281
6.23
22400
98.8
6.23
22400
98.8
8.51
30600
135
13.2
47600
209
13.2
47600
209
18.0
64700
285
6.27
22600
99.4
6.27
22600
99.4
8.58
30900
136
13.3
47800
210
13.3
47800
210
18.2
65500
288
6.31
22700
101
6.31
22700
101
8.65
31100
137
13.4
48100
212
13.4
48100
212
18.4
66200
292
6.35
22900
101
6.35
22900
101
8.72
31400
138
13.4
48300
213
13.4
48300
213
18.6
66900
295
6.39
23000
101
6.39
23000
101
8.78
31600
139
13.5
48500
214
13.5
48500
214
18.8
67600
297
6.42
23100
102
6.42
23100
102
8.85
31900
140
13.5
48700
214
13.5
48700
214
18.9
68200
300
6.46
23300
102
6.46
23300
102
8.91
32100
141
13.6
48800
215
13.6
48800
215
19.1
68700
303
6.50
23400
103
6.50
23400
103
8.98
32300
142
13.6
49000
216
13.6
49000
216
19.2
69200
305
6.54
23500
104
6.54
23500
104
9.04
32600
143
13.7
49200
217
13.7
49200
217
19.4
69700
307
6.58
23700
104
6.58
23700
104
9.11
32800
144
13.7
49300
217
13.7
49300
217
19.5
70200
309
6.62
23800
105
6.62
23800
105
9.18
33000
145
13.7
49500
218
13.7
49500
218
19.6
70600
311
6.67
24000
106
6.67
24000
106
9.25
33300
147
13.8
49600
218
13.8
49600
218
19.7
70900
312
6.72
24200
106
6.72
24200
106
9.32
33500
148
13.8
49800
219
13.8
49800
219
19.8
71300
314
6.77
24400
107
6.77
24400
107
9.39
33800
149
13.9
49900
220
13.9
49900
220
19.9
71600
315