Data sheet
Flow controller with integrated control valve (PN 16)
AHQM - return and flow mounting
Description
DN 15-32 DN 40, 50 DN 50-100
AHQM is a self-acting flow controller with
integrated control valve primarily for use in
district heating systems or in secondary district
heating systems as well. The controller closes
when set max. flow is exceeded.
In combination with Danfoss electrical actuators
AMV(E) can be controlled by ECL electronic
controllers.
The controllers have a control valve with
adjustable flow restrictor, connection neck for
electrical actuator, and an actuator with one
control diaphragm.
Controllers are used together with Danfoss
electrical actuators:
• DN 15-32 with
- AMV(E) 10
- AMV(E) 13 with spring return function
- AMV(E) 130, AMV(E) 140
- AMV(E) 130H, AMV(E) 140H with manual
operation
• DN 40-100 with
- AMV(E) 435
- AMV(E) 25 SD spring return function
(spring down)
AHQM, DN 15-32 combined with AMV(E) 13 has
been approved according to DIN EN 14597.
Main data:
• DN 15-100
• k
1,0 -90 m3/h
VS
• Flow range 0,035-38 m
3
/h
• PN 16
• Flow restrictor ∆p
- 0,12 bar for DN 15-20
:
b
- 0,14 bar for DN 25-32
- 0,2 bar for DN 40, 50
- 0,3 bar for DN 65-100
• Temperature:
- Circulation water / glycolic water up to 30%:
2 … 120 °C
• Connections:
- Ext. thread (weld-on, thread and flange
tailpieces)
- Flange
Ordering
Example AHQM controller:
Flow controller with integrated
control valve, DN 15, kVS 1,6; PN
16; flow restrictor Δp 0,12 bar;
T
120 °C; ext. thread
max
- 1× AHQM DN 15 controller
Code No.: 003L3594
Option:
- 1× Weld-on tailpieces
Code No.: 003H6908
Electrical actuator AMV(E) must be
ordered separately.
© Danfoss | 2016.07
AHQM Controller
Picture
DN k
(mm) (m
15
20 2,5
25 4,0
32 6,3
40 12, 5
50 20
50 20
65 50 003L3604
80 63 003L3605
100 90 003L3606
VS
3
/h)
1,0
1,25 003L3593
1,6 003L3594
Cylindr, ext, thread acc, to ISO 228/1
Connection Code No,
003L3592
G ¾ A
G 1 A
G 1¼ A
G 1¾ A
G 2 A
G 2⁄ A
Flange EN 1092-2
003L3595
003L3596
003L3597
003L3601
003L3602
003L3603
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Data sheet AHQM PN16
Ordering (continuous)
Technical data
Accessories
Picture Type designation DN Connection Code No.
15
003H6908
20 003H6909
Weld-on tailpieces
25 00 3H6910
32 0 03 H69 11
-
40 00 3H6912
50 0 03H6 913
15
R ½ 003H6902
20 R ¾ 003H6903
External thread tailpieces
25 R 1 003H6904
32 R 1¼ 003H6905
Conical ex t. thread acc. to
EN 1022 6-1
40 R 1⁄ 065F6061
50 R 2 065F6062
Flange tailpieces
15
20 003H 6916
Flanges PN 25, acc. to EN 1092-2
003H6915
25 0 03H6 917
Valve (thread version)
Nominal diameter DN 15 20 25 32 40 50
value
k
VS
Flow range
Q
min
1)
Q
nom
Available ∆p required for Q
m
2)
bar 0,3 0,4 0,5 0,4 0,4 0,4 0,6 0,4
max
Stroke mm 5,5 5 10
Control valve authority 1 (100 %) in the range of flow set ting
Control characteristic Linear
Leakage acc. to standard IEC 534 ≤ 0,05 % of k
Nominal pressure PN 16
Min. differential pressure
Max. differential pressure 4
bar
Medium Circulation water / glycolic water up to 30%
Medium pH Min, 7, max, 10
Medium temperature °C 2 … 120
Connections External thread
Materials
Valve body
Valve seat DP, CV St. steel, mat.No,1,4404
Valve cone DP St. steel, mat.No,1,4404
Valve cone CV
Sealing DP
Sealing CV Metal
1)
At differe ntial pressure across the controlle r Δp
2)
For flows smal ler than Q
3)
Depends on DN
->
p
max
min
Note:
DP - diff. pressu re controller, CV - control valve
1,0 1, 25 1,6 2,5 4,0 6,3 12,5 20
3
/h
0,035 0, 11 0,2 0,25 0,43 0,65 1,5 2,5
0,43 0,7 1, 0 1,2 2,2 3,4 7,5 12, 5
VS
see remark
2)
DZR CW602N (CuZn36Pb2As)
EPDM
≥ 0,5 bar
AHQM
2
Q
k
VS
p
MCV
Grey cast iron
EN-GJL-250 (GG25)
DZR CW602N
(CuZn36Pb2 As)
EPDM
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Data sheet AHQM PN16
2
Technical data (co ntinuous)
Actuator
For valve DN 15 20 25 32
Actuator size cm
2
8,5 13 20 32
Nominal pressure PN 16
Flow restrictor diff. pressure ∆p
bar
b
0,12 0,14 0,2
Materials
Housing*
DZR CW602N (CuZn36Pb2As)
Diaphragm EPDM
Impulse tube -
* Actuator ho using is part of valve body.
40 50
64
Grey cast iron
EN-GJL-250 (GG25)
AHQM (flange version)
Nominal diameter DN 50 65 80 100
k
value
VS
Flow range
Q
min
1)
Q
nom
Available ∆p required for Q
max
3
/h
m
2)
bar 0,7 0,5 0,5 0,5
Stroke mm 10 15
Control valve authority 1 (100 %) in the range of flow set ting
Control characteristic Linear
Leakage acc. to standard IEC 534 ≤ 0,05 % of k
Nominal pressure PN 16
Min. differential pressure
Max. differential pressure 4
bar
Medium Circulation water / glycolic water up to 30 %
Medium pH Min. 7, max. 10
Medium temperature °C 2 ... 120
Connections Flange
Materials
Valve body Grey cast iron EN-GJL-250 (GG25)
Valve seat DP, CV
Valve cone DP
Valve cone CV DZR CW602N (CuZn36Pb2As)
Sealing DP EPDM
Sealing CV Metal
1)
At differe ntial pressure across the controlle r Δp
2)
For flows smal ler than Q
3)
Depends on DN
->
p
max
Q
min
k
VS
Note:
DP - diff. pressu re controller, CV - control valve
20 50 63 90
2,5 4,0 5,6 7, 6
12, 5 20 28 38
VS
2)
St. steel, mat.No,1,4305
St. steel, mat.
No,1,4 404
≥ 0,5 bar
AHQM
p
MCV
see remark
VD.LR.J5.02
Actuator
For valve DN 50 65 80 100
Actuator size cm
Nominal pressure PN 16
Flow restrictor diff.
∆p
pressure
b
Materials
Housing
Diaphragm EPDM
Impulse tube -
2
64 143 169 227
bar 0,2 0,3
Grey cast iron EN-GJL-250 (GG25)
© Danfoss | 2016.07 | 3
Data sheet AHQM PN16
Application principles
- Indirectly connected heating
system
Return mounting Flow mounting
Installation positions DN 15-32
The controllers can be installed in horizontal
or vertical pipes with (connection neck for)
electrical actuator oriented upwards.
DN 40-100
The controllers can be installed with (connection
neck for) electrical actuator oriented horizontal
or upwards.
Electrical actuator
Note!
Installation positions for electrical actuators
AMV(E) have to be observed as well. Please see
relevant Data Sheet.
DN 15-32
DN 40, 50
DN 50 -100
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Data sheet AHQM PN16
Pressure temperature
diagram
Flow diagram
PN 16
working area
DN 15 -32
CuZn36Pb2As (DZR)
PN 16
working area
DN 4 0-10 0
EN- GJL-25 0 (GG-25 )
Maximum allowed operating pressure as a function of medium temperature (according to EN 1092-2 and EN 1092-3).
Sizing and setting diagram
Relation between actual flow and number of revolutions on flow restictor. Values given are approximate.
DN 32 kVS 6,3
DN 25 kVS 4,0
DN 20 kVS 2,5
DN 15 kVS 1,6
DN 15 kVS 1,25
DN 15 kVS 1,0
VD.LR.J5.02
Flow can be adjusted by turning flow restrictor screw
counter-clockwise as shown in this diagram
1 = 360º
DN 100 kVS 90
DN 80 kVS 63
DN 65 kVS 50
DN 50 kVS 20 (flang e)
DN 50 kVS 20 (thread)
DN 40 kVS 12, 5
1 = 360º
Water flow shown at differential pressure across the
controller from 0,5 bar (50 kPa) to 4 bar (400 kPa).
© Danfoss | 2016.07 | 5
Data sheet AHQM PN16
Design
1. Valve body
2. Control valve insert
3. Adjustable flow restrictor
4. Control valve stem
5. Valve seat
6. Differential pressure actuator
7. Control diaphragm
8. Built-in spring for flow rate
control
9. Pressure relieved valve cone
10. Valve stem
11. Control drain
12 . Control diaphragm cover
13 . Spring cover
DN 15-32
DN 40, 50
DN 50 -100
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Data sheet AHQM PN16
Function Flow controller with integrated control valve
Flow volume causes the pressure drop across the
adjustable flow restrictor. Resulting pressures
are being transferred through external impulse
tubes or control drains within valve body to
the actuator chambers and act on control
diaphragm. The flow restrictor diff. pressure
is controlled and limited by means of built-in
spring for flow rate control.
Settings
Flow setting
Flow setting is being done by the adjustment of
the flow restrictor position. The adjustment can
be performed on the basis of flow adjustment
diagram (see relevant instructions) and/or by the
means of heat meter.
Dimensions
DN 15 -32
DN
L
H 24 31 39 49
H1 57 59 72 84
D (ISO 228/1) G ¾A G 1A G 1¼ A G 1¾A
Valve weight kg 0,51 0,67 1,47 2,23
Additionally the electrical actuator will operate
from zero to set max. flow according to the load.
15 20 25 32
65 82 104 130
mm
VD.LR.J5.02
DN 15 20 25 32
SW
d 21 26 33 42
1)
R
2)
L1
L2 120 143 174 207
L3 139 154 159 184
k 65 75 85 -
d
2
n 4 4 4 -
1)
Conical ex t. thread acc. to EN 10226-1
2)
Flanges PN 25, acc. to EN 1092-2
32 (G ¾A) 41 ( G 1A) 50 (G 1¼A) 63 (G 1¾A)
½ ¾ 1 1 ¼
130 150 160 -
mm
14 14 14 -
© Danfoss | 2016.07 | 7
Data sheet AHQM PN16
Dimensions (continuous)
DN 15 -32
1
H
1
H
2
H
L
1
L
2
2
H
L
1
L
2
AMV(E) 10 + AHQM AMV(E) 13 + AHQM
DN
AMV(E) 10
L
1
AM V(E) 13 147 147 164 183
AMV(E) 10 178 186 204 224
L
2
AM V(E) 13 188 196 214 234
AMV(E) 10 195 201 223 245
H
1
AM V(E) 13 210 216 238 260
AMV(E) 10 174 184 202 222
H
2
AM V(E) 13 180 190 208 228
15 20 25 32
137 137 153 17 2
mm
DN
L
1
2
H
H
L
1
L
2
1
L
2
H
1
H
2
15 20 25 32
118 125 141 16 0
148 156 174 194
mm
168 178 19 6 216
152 162 180 200
AMV(E) 130(H)/140(H) + AHQM
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Data sheet AHQM PN16
Dimensions (continuous)
DN 40, 50
L
1
3
H
1
H
4
H
b
2
H
AMV(E) 435 + AHQM
AMV(E) 25 SD + AHQM
+ adapter 065Z0311
DN
mm
H1H2H3H
L
1
40 11 0 141, 5 141 2 47,5 272,5 G 2 5,4
50 13 0 141, 5 141 2 47,5 272,5 G 2½ 6,2
SW
1
H
1
1
H
SW
R
2
H
L
1
2
H
L
2
b Valve weight
4
ISO 228/1 (kg)
2
d
DN 40 50
R 1⁄ 2
SW
SW
1
2
64 80
70 82
d 48,3 60,3
L
mm
1
L
204 234
2
H
1
H
2
200 244
141,5 141
141,5 141
DN 50-100
1
H
2
H
3
H
4
H
a
L
1
AMV(E) 435 + AHQM
AMV(E) 25 SD + AHQM
+ adapter 065Z0312
H1H2H3H
L
DN
1
mm (EN 10 92-2) (kg)
50 230 141, 5 141 2 47,5 272,5 165 12,7
65 290 187 132 293 318 185 31, 0
80 310 190 139,5 296 321 200 3 7,5
100 350 202 152 308 333 220 51, 0
4
a Valve weight
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Data sheet AHQM PN16
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Data sheet AHQM PN16
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© Danfoss | 2016.07 | 11
Danf
already on order pro
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Data sheet AHQM PN16
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.
12 | © Danfoss | DHS-SRMT/SI | 2016.07
tive companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
VD.LR.J5.02
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