Installation Guide for Danfoss models including: DN 15-20, 73693710, DN 15-20 Pressure Independent Control Valves, DN 15-20, Pressure Independent Control Valves, Independent Control Valves, Control Valves, Valves

AB-QM 4.0 Flexo, DN 15-20

AB-QM 4.0 Flexo, DN 15-20 (80 mm)

11 nov 2024 — DN15 LF. DN 15. DN 15 HF. DN 20. DN 20 HF. L/h. L/s. GPM. L/h. L/s. GPM. L/h. L/s. GPM. L/h. L/s. GPM. L/h. L/s. GPM. 10%. 20. 0.006 0.09. 65. 0.018. 0.29.

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AQ389559828576en-010401
Operating Guide

AB-QM 4.0 Flexo / 73693710

AB-QM 4.0 Flexo, DN 15-20 (80 mm)

22
PAP
Installation Left-hand version

max min
MAINTENANCE -10 ... 95°C FREE

PN 25

pmax.= 600kPa (6 bar)

Right-hand version

ACTUATOR

Installation

DN15 27 mm DN20 32 mm
DN15 27 mm DN20 29 mm
Max 25Nm









DN15 27 mm

DN20 29 mm

Max 25Nm

© Danfoss | 2024.10

27 mm 29 mm 32 mm
26 mm 32 mm

DN15 26 mm DN20 32 mm

DN15 27 mm DN20 32 mm
DN15 27 mm DN20 29 mm
Max 25Nm







DN15 27 mm



DN20 29 mm

Max 25Nm

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AB-QM 4.0 Flexo, DN 15-20
Insulation  
 

 
 

 
Note: In cooling application depending on design condition and humidity, Flexo set shall be insulated fully with vapor tight insulation.

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AB-QM 4.0 Flexo, DN 15-20
Setting

Shut-off p = 10 bar
max

SHUT OFF

Setting

= 10 (100%)

x 10%

Locking

Filter cleaning
 DN15 20 mm DN20 27 mm

 


16, 20 mm 27 mm

DN15 20 mm



DN20 27 mm

Max 10 Nm (till metal touches metal)

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AB-QM 4.0 Flexo, DN 15-20

Operation

Left-hand version

HVAC System

HVAC System

Right-hand version

Shut-off / Maintenance Left-hand version

HVAC System

HVAC System

Right-hand version

Flushing of main pipe Left-hand version

HVAC System

HVAC System

Right-hand version

Backward flushing For the right-hand version the function is mirrored.

Forward flushing For the right-hand version the function is mirrored.

HVAC System

HVAC System

CLOSE

OPEN
5 mm 3.5 - 4.5 mm
× 0.7 mm

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CLOSE

OPEN
5 mm 3.5 - 4.5 mm
× 0.7 mm

AQ389559828576en-010401

AB-QM 4.0 Flexo, DN 15-20

Sizing

Setting
10% 15% 20% 25% 30% 35% 40% 45% 50% 55% 60% 65% 70% 75% 80% 85% 90% 95% 100%

DN15 LF L/h L/s GPM 20 0.006 0.09 30 0.008 0.13 40 0.011 0.18 50 0.014 0.22 60 0.017 0.26 70 0.019 0.31 80 0.022 0.35 90 0.025 0.40 100 0.028 0.44 110 0.031 0.48 120 0.033 0.53 130 0.036 0.57 140 0.039 0.62 150 0.042 0.66 160 0.044 0.70 170 0.047 0.75 180 0.050 0.79 190 0.053 0.84 200 0.056 0.88

DN 15

DN 15 HF

DN 20

DN 20 HF

L/h L/s GPM L/h L/s GPM L/h L/s GPM L/h L/s GPM

65 0.018 0.29 120 0.033 0.53 110 0.03 0.48 190 0.053 0.84

98 0.027 0.43 180 0.050 0.79 165 0.05 0.73 285 0.079 1.25

130 0.036 0.57 240 0.067 1.06 220 0.06 0.97 380 0.106 1.67

163 0.045 0.72 300 0.083 1.32 275 0.08 1.21 475 0.132 2.09

195 0.054 0.86 360 0.100 1.59 330 0.09 1.45 570 0.158 2.51

228 0.063 1.00 420 0.117 1.85 385 0.11 1.70 665 0.185 2.93

260 0.072 1.14 480 0.133 2.11 440 0.12 1.94 760 0.211 3.35

293 0.081 1.29 540 0.150 2.38 495 0.14 2.18 855 0.238 3.76

325 0.090 1.43 600 0.167 2.64 550 0.15 2.42 950 0.264 4.18

358 0.099 1.57 660 0.183 2.91 605 0.17 2.66 1045 0.290 4.60

390 0.108 1.72 720 0.200 3.17 660 0.18 2.91 1140 0.317 5.02

423 0.117 1.86 780 0.217 3.43 715 0.20 3.15 1235 0.343 5.44

455 0.126 2.00 840 0.233 3.70 770 0.21 3.39 1330 0.370 5.86

488 0.135 2.15 900 0.250 3.96 825 0.23 3.63 1425 0.396 6.27

520 0.144 2.29 960 0.267 4.23 880 0.24 3.87 1520 0.422 6.69

553 0.154 2.43 1020 0.283 4.49 935 0.26 4.12 1615 0.449 7.11

585 0.163 2.58 1080 0.300 4.76 990 0.28 4.36 1710 0.475 7.53

618 0.172 2.72 1140 0.317 5.02 1045 0.29 4.60 1805 0.502 7.95

650 0.181 2.86 1200 0.333 5.28 1100 0.31 4.84 1900 0.528 8.37

Measurements

 
003L8143

CLOSE

OPEN

Q
AQ389559828576en-010401

p

p

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A A

AB-QM 4.0 Flexo, DN 15-20
Dimensions

H

G

H

G

C

B

D

E

F

DN15LF DN15 DN15HF

A

134.5

B

125

C

80

D

77

E

98.5

F

211

G

Internal G½"

H

Internal Rp½"

DN20 DN20HF 144 138 80 77 102 213
Internal G¾" Internal Rp¾"

H G

C

H G

B

D

E

F

DN15LF DN15 DN15HF

A

134.5

B

134.5

C

80

D

77

E

98.5

F

211

G

Internal G½"

H

Internal Rp½"

DN20 DN20HF 144 144 80 77 102 213
Internal G¾" Internal Rp¾"

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C

AB-QM 4.0 Flexo, DN 15-20
Dimensions B

A A

A

B*

C

DN15 Internal G1/2" (ISO228/1) 298 External G½" (ISO 228/1)

DN20 Internal G3/4" (ISO228/1) 310 External G¾" (ISO 228/1)

* The length of the flexible pipes might deviate +20 or -10mm.

B C

DN15 DN20

A

B

C

95 215 160

120 220 167

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AB-QM 4.0 Flexo, DN 15-20

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73693710 / AQ389559828576en-010401


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