Data sheet
Pre-Fabricated Flushing Bypass Assembly
for Plant Applications Hero Plant DN15-150
Description Hero Plant is a pre-fabricated, flushing bypass
arrangement for balance, control, isolation, and
operation of plant devices.
Flow is controlled by the AB-QM pressure
independent control valve to avoid over flow
and optimize the efficiency of terminal unit. The
flow rate can be accurately verified via MSV (DN
15-32) and via AB-QM (DN 40-150).
Application
Hero Plant is designed for use with air handling units, heat exchangers, heater batteries and all other
plant devices, where flow is controlled via a pressure independent control valve, and isolation, drain,
strain, flushing bypass, and flow measurement is required.
Key features include:
• A compact, pre-fabricated design
• Factory pressure tested assembly to PED
standard
• PN16 screwed connections DN15-50, and
flanged connections DN65-150
• A wide flow rate range for all applications
• Danfoss AB-QM type pressure independent
control valve for balance at full or partial loads
• A comprehensive compatible range of actuators
to enable it to be connected to a building
management system or other controller
• Strainer to remove particles from the system
and prevent plant performance deterioration
• Flow and return mounted drains for flushing
and quick draindowns
• Flow measurement function in all sizes
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Data sheet Hero Plant DN15-150
IV
DN 40-150
IV
IV
IV
B
DN 15-32
IV
Schematic and design
V with IV
DOC
ABQM
DOC
ABQM
IV
IV
DOC
STR
Schematic symbol Guide
ABQM Pressure Independent Control Valve (actuator supplied separately)
DOC Drain point
IV Isolation valve
STR Strainer
Test point
BV MSV Balancing valve with built in measuring station and isolating valve
Materials
Component
Body DZR brass Grey Iron GG25
Membrane and
AB-QM
Strainer Body CW 617 N Grey Iron GG25
Isolating
valves
Oring Material
Control Valve
cone material
Body CW 617 N - Nickel Plated Grey Iron GG25
Ball / Disk CW 617 N - Chrome Plated GGG40 with Polyamide coating
MSV DZR brass N/A
Pipe and flanges P235GH / P265GH
Fittings CW617 / CW615
Flanges N/A P245GH / P250GH
Bolting N/A 8.8 Zinc Plated
15 20 25 32 40 50 65 80 100 125 150
EPDM
CuZn40Pb3-CW614N
Size
DOC
STR
W.Nr.1.4571
W.Nr.1.4404
/EPDM
NC
IV
IV
EPDM
W.Nr.1.4021
2 | © Danfoss | 2017.03
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Data sheet Hero Plant DN15-150
Ordering
Flow [l/h] Connection
DN
Nominal Minimum Size (BSP) Typ e Typ e
15 450 90 ½”
Description
Hero Plant DN 15 146B5928
20 00 180 ¾” Hero Plant DN 20 146B5929
25 1 700 340 1” Hero Plant DN 25 146B5930
2 3 20 0 640 1 ¼” Hero Plant DN 32 146B26 83
Internal
thread
Order
code
Control
AME
110 NL X
40 7 500 3 000 1 ½” Hero Plant DN 40 146B2684
50 12 5 00 5 000 2” Hero Plant DN 50 146B2685
65 20 000 8 000 2 ½”
Hero Plant DN 65 146B2686
AME
435QM
80 28 000 11 2 0 0 3” Hero Plant DN 80 146B5931
100 38 000 15 2 00 4” Hero Plant DN 100 146B5932
125 90 000 36 000 5” Hero Plant DN 125 146B5933
150 145 000 58 000 6” Hero Plant DN 150 146B5934
* Actuators need to be ordered separately
Flanged
AME
55QM
Technical data
Size 15 20 25 32 40 50 65 80 100 125 150
Flow range
Nom l⁄s 0.125 0.25 0.47 0.89 2.08 3.47 5.56 7.78 10.56 25 40.28
Min l/s 0.025 0.05 0.094 0.178 0.83 1.39 2.22 3 .11 4.22 10 16 .11
Setting range 20 -100% 40 -100%
Differential Pressure kPa 16-400 20-400 30-400
PN Rating Bar 16
Control range 1:1000
PICV Leakage rate
Flow medium
No visible
Leakage
Maximum 0.05% of nominal flow
Water and water mixtures for closed heating and cooling systems according to
plant type I for DIN EN14868
Medium Temperature °C −10…12 0
Storage and transport
Temperature
°C −40…70
Stroke mm 2.25 4.5 10 15 30
Connection Union tread
Size 1/2” 3/4" 1"
Typ e 1/4 Turn Ball
Drain
Flow rate
l/s@1.2 bar
6 13.7 18.2
∆P
Model MSV-BD ABQM P1-P2
Typ e Variable Orifice
Measuring Orifice
Measuring
orifice kVs
at nominal
3 6.6 9.5 18 25 35 45 69.5 111 172 274
flow
Typ e Threaded Flanged PN 16
Strainer
kVS 3.5 4.3 8.7 16.5 13.4 25.7 86 127 183 316 489
Mesh Size
2
mm
1 0.87 1.18
Model 954 VFY-LH
Isolating valve
kVs 20 45 60 100 170 265 174 275 496 883 1212
Typ e 1/4 Turn Ball Fully Lugged Butterfly
signal
0-10V
Actuator*
Supply
voltage
Order code
24V AC 082H806000
24V
AC/DC
082H01710 0
24V AC 082H307800
VD.BO.W1.02
© Danfoss | 2017.03 | 3
Data sheet Hero Plant DN15-150
Operational modes
Supply
This is the normal operation of the Hero, with
flow going through the coil or heat exchanger,
and out through the return, back to the
system.
The AB-QM valve will balance by limiting the
flow to the coil, and the actuator will control
flow as per the temperature requirement.
Bypassing
During system flushing, the coil will be
isolated, but a flow around the main system is
required. To enable bypassing we have
positioned a flushing bypass within the Hero
assembly, which can open a link between flow
and return, to enable mainline system flow for
flushing.
Isolation
For a variety of reasons, it may be required to
completely isolate the coil or heat exchanger.
For this we can isolate the flow and return,
and close the bypass, to remove all flow
through the coil and bypass.
Coil Flushing
To enable flushing through the coil, the flow
can be opened, with the return and bypass
isolation valves closed. The drain is then
opened, to allow flow through the coil, and
any coil debris will be released through the
return side drain point.
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Data sheet Hero Plant DN15-150
Setting and
flow measurement
Setting the AB-QM DN15-32
The calculated flow can be adjusted easily without using special tools.
To change the presetting (factory setting is 100%) follow the four steps below:
1. Remove the blue protective cap or the mounted actuator
2. Raise the grey pointer
3. Turn (clock wise to decrease) to the new presetting
4. Press grey pointer back into lock position.
After click presetting is locked.
The presetting scale indicates values from 100% flow to 0%. Clock wise turning would
decrease the flow value while counter clock wise would increase it.
If the valve is a DN 15 then the nom flow
= 450 l/h =100% presetting. To set a flow of 270 l/h you have to set: 270/450 = 60%.
Danfoss recommends a presetting/flow from 20% to 100%. Factory presetting is 100%.
1
2 3 4
Setting ABQM DN40-100
1. Disconnect the actuator
2. One turn down of the setting ring equals 10% reduction in flow
3. Turn the setting ring until the desired % setting is in place
4. Reconnect the actuator
DN 40 -100
note: 1 turn = 10%
Setting ABQM DN125-150
1. Disconnect the actuator
2. One turn down of the setting ring equals 5% reduction in flow
3. Turn the setting ring until the desired % setting is in place
4. Reconnect the actuator
DN 40 -100
−
max 25 Nm
setting 60%
VD.BO.W1.02
+
note: 1 turn = 5%
© Danfoss | 2017.03 | 5
Data sheet Hero Plant DN15-150
Verification of Flow Rate on Hero DN15-32
To verify the flow rate, the following steps should
be taken:
1. Find the kVs of the MSV valve on the kVs chart
2. Calculate the required pressure drop using the
kVs and design flow rate, using the
following formula:
Q=Kv x √P
Note Q=m3/h, P=Bar
3. Plug a manometer into the test points on the
MSV balancing valve
4. If you are getting the required pressure, you
have the desired flow rate
Verification of Flow Rate on Hero DN40-150
To verify the flow rate, the following steps should
be taken:
1. Find the kVs of the AB-QM valve on the kVs
chart
2. Calculate the required pressure drop using the
kVs and design flow rate, using the
following formula:
Q=Kv x √P
Note Q=m3/h, P=Bar
3. Plug a manometer into the P1-P2 test points
(flow side to centre test point on the ABQM
valve
4. If you are getting the required pressure, you
have the desired flow rate
Kvs chart MSVBD Hero DN15-32
Setting DN 15 DN 20 DN 25 DN 32
0 0.1 0.12 0.34 0. 51
0.3 0.13 0.26 0.61 1.1
0.6 0.19 0.45 0.79 1.6
0.9 0.26 0.67 0.95 2 .18
1.2 0.34 0.89 1.14 2.87
1.5 0.44 1.09 1.37 3.64
1.8 0.54 1.3 1.65 4.48
2.1 0.65 1.53 1.96 5.35
2.4 0.77 1.78 2.29 6.27
2.7 0.89 2.07 2.65 7. 29
3 1.01 2.4 3.01 8.48
3.3 1.12 2.78 3.37 9.87
3.6 1.25 3.19 3.74 11.46
3.9 1.41 3.61 4.13 13.12
4.2 1.59 4.02 4.53 14. 52
4.5 1.81 4.4 4.98
4.8 2.08 4.72 5.46
5 2.23 4.9 5.81
5.2 2.36 5.04 6.19
5.5 2.5 5.18 6.77
5.8 5.27 7.34
6.1 7.85
6.4 8.17
6.6
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Data sheet Hero Plant DN15-150
Kvs chart ABQM
He ro DN40-150
Presetting % DN 40 DN 50 DN 65 DN 80 DN 100 D N 125 DN 15 0
20,0 3,40 4,60 4,20 15,50 19,50 40 53
22,5 4,08 5,55 5,48 17,19 21,94 45 60
25,0 4,80 6,50 6,75 18,88 24,38 49 67
27, 5 5,43 7,45 8,03 20,56 26,81 53 74
30,0 6,10 8,40 9,30 22,25 29,25 57 81
32,5 6,78 9,35 10,58 23,94 31,69 61 88
35,0 7,50 10,30 11, 85 25,63 3 4,13 65 95
37, 5 8,13 11, 25 13,13 2 7,31 36,56 69 101
40,0 8,80 12,20 14,40 29,00 39,00 73 108
42,5 9,48 13,15 15,68 30,69 41, 44 77 115
45,0 10,20 14,10 16,95 32,38 43,88 82 122
47, 5 10,83 15,05 18,23 34,06 46,31 86 129
50,0 11, 50 16,0 0 19,50 35,75 48,75 90 13 6
52,5 12,18 16,95 20,78 37,44 51,19 94 143
55,0 12,9 0 17,90 22,05 39,13 53,63 98 150
57, 5 13 ,53 18,85 23,33 40,81 56,06 102 157
60,0 14,20 19,80 24,60 42,50 58,50 106 163
62,5 14,88 20,75 25,88 44,19 60,94 110 170
65,0 15, 55 21,70 27,15 45,88 63,38 114 177
67, 5 16,26 22,65 28,43 47,56 65, 81 119 184
70,0 16,90 23,60 29,70 49,25 68,25 123 191
72,5 17, 58 24,55 30,98 50,94 71,81 127 198
75,0 18,25 25,50 32,25 52,63 75,38 131 205
77,5 18,93 26,45 33,53 54,31 78,94 135 212
80,0 19,60 27,40 34,80 56,00 82,50 139 219
82,5 20,28 28,35 36,08 57,69 86,06 143 225
85,0 20,95 29,30 37, 35 59,38 89,63 147 232
87, 5 21,63 30,25 38,63 61,06 93,19 152 239
90,0 22,30 31,20 39,90 62,75 96,75 156 246
92,5 22,98 32,15 41,18 64,44 100, 31 160 253
95,0 23,65 33,10 42,45 66,13 103,88 164 260
97, 5 24,33 34,05 43,73 6 7,81 107, 44 168 267
100,0 25,00 35,00 45,00 69,50 111,00 172 274
For DN40-150, ensure the measurement is taken across the AB- QM for flow verification. The test points on the flow inlet
to centre (P1-P2) should be used for this calculation
Installation
VD.BO.W1.02
Hero units should be installed horizontally to
ensure the strainer collects particles from
the system. Vertical mounting is possible. Be
aware that the strainer retains the particle
but cannot collect them. Should an option for
vertical mounting be required, contact your
Danfoss representative for a design specific to
your application.
The components are installed to enable rotation
whilst installed, should they clash with
other closely located items. Once rotated, the
connections should be re-checked for
leaks.
The actuator must not be installed underneath
the AB-QM valve
© Danfoss | 2017.03 | 7
Danf
already on order pro
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Data sheet Hero Plant DN15-150
Commissioning Hero units are self-commissioned and do not
require a Danfoss representative to be
present. Commissioning procedure is as follows:
-Check all connections for leaks
-Ensure operation of all the isolation valves
-Check the Hero is installed with the flow
direction matching the arrows on the AB-QM,
and strainer
-Check, and if required, empty the strainer
-Remove the actuator and set the AB-QM to the
desired flow rate
-Verify the flow rate using the method described
in the datasheet
-Re-attach the actuator
C max D
3
5
1
A
B
4
Size 15 20 25 32 40 50 65 80 100 125 150
A 257 289 333 494 569 596 814 860 971 1163 1233
B 95 115 147 260 289 310 4 41 4 61 509 627 615
C 345 441 541 707 756 857 988 1068 1170 1324 1442
Dimensions
D 102 111 120 113 150 169 326 338 397 523 587
1
2
Connection
3
4
5
6
1/2” BSP
Threaded
3/4” BSP
Threaded
1” BSP
Threaded
1.1/4” BSP
Threaded
1/2” BSP 3/4” BSP 1” BSP
6
1.1/2” BSP
Threaded
2” BSP
Threaded
2 1/2”
Flanged3”Flanged
2
4”
Flanged5”Flanged6”Flanged
oss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
vided that such alterations can be made without subsequential changes being necessary eady agreed.
8 | © Danfoss | DHS-SMCT/PL | 2017.03
tive companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
VD.BO.W1.02
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