Danfoss AFQM, AFQM 6 Data sheet

Data sheet

Flow controller with integrated control valve (PN 16, 25, 40*)

AFQM, AFQM 6 - return and flow mounting

Description

AFQM 6 DN 40, 50 AFQM DN 65-125 AFQM DN 150-250

AFQM(6) is a self-acting flow controller with
integrated control valve with full authority,
primarily for use in district heating systems. 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 AFQM (6) is pressure independent which
means that the control characteristic is
independent from the available pressure and is
not influenced by a low authority.

The controller has a control valve with adjustable
flow restrictor, connection neck for electrical
actuator and an actuator with one control
diaphragm. Further on control valve can be:

- not pressure relieved (AFQM 6 DN 40-50) or

- pressure relieved (AFQM DN 65-250).

Controllers are used together with Danfoss
electrical actuators:

• AFQM 6 PN 16/25, AFQM PN 16/25 DN 65-125 3)

- AMV(E) 65x

without spring return function and with

manual operation:

- AMV(E) 655
spring return function and manual operation:

- AMV(E) 658 SD

2)

spring return function:

- AMV(E) 659 SD 1)

• AFQM 6 PN 16/25, AFQM PN 16/25 DN 65-125

- AMV(E) 55, 56

• AFQM PN 16 DN 150-250

- AMV(E) 85, 86

1)

DIN approved , according to EN 1457

2)

not DIN approved

3)

For AFQM 6 PN 16/25 and AFQM PN 25/40 controllers ,
produced be fore March 2015, adapter code 0 65B3527 need
to be separately o rdered

Main data:

• DN 40-250

• kVS 20-400 m3/h

• Flow range 2.2-420 m3/h

• PN 16, 25
* PN 40 on special request

• Flow restrictor ∆pb: 0.2 or 0.5 bar

• Temperature:

- Circulation water / glycolic water up to 30 %:
2 … 150 °C for DN 40-125

2 … 140 °C for DN 150-250

• Connections:

- Flange

• AFQM 6 and AFQM PN 25 combined with
AMV(E) 659 SD have been DIN approved
according to EN 14597.

© Danfoss | 2017.02

VD.LR.A8.02 | 1

Data sheet Flow controller with integrated control valve AFQM(6), PN 16, 25, 40*

Ordering

Example:
Flow controller with integrated
control valve, DN 65, kVS 50,
PN 16, flow restrictor Δpb 0.2 bar,
T

150 °C, flange

max

- 1× AFQM DN 65 controller
Code No.: 003G6056

The controller will be delivered
completely assembled, inclusive
impulse tubes bet ween valve and
actuator. Electrical actuator AMV(E)
must be ordered separately.

AFQM 6 Controller

Picture DN

AFQM Controller

Picture DN

kVS

m3/h

40 20

50 32 003 G1083

40 20

50 32 003 G1085

k

VS

(m3/h) ΔPb=0.2 bar ΔPb=0.5 bar

65 50

80 80 003G6057 003G6064

100 125 003G6058 003G6065

125 160 003G6059 003G6066

150 280 003G6060 003G6067

200 320 003G6061 003G6068

250 400 003G6062 003G6069

65 50

80 80 003G108 9

100 125 003G10 90

125 160 003G10 91

PN Connection Code No.

16

Flange EN 1092-1

25

PN Connection

16

Flange EN 1092-1

25

003 G1082

003 G1084

003G6056 003G6063

003 G1088

Code No.

—

Service kits

Picture Type designation DN k

Valve insert

Control valve insert

Type designation For controller Δpb (bar) Code No.

AFQM 6

Actuator

Connection kit AMV(E) 41x, 61x, 63x/AFQM 6 00 3G1425

Connection kit AMV(E) 41x , 61x, 63x/AFQM 00 3G1426

AFQM

Type designation Code No.

65/80 50/80 065B2794

100/125 125/160 065B2795

65 50 065B2972

80 80 065B2973

(m3/h) Code No.

VS

0.2

0.5 003G1027

003 G1024

003 G1026

2 | VD.LR.A8.02

© Danfoss | 2017.02

Data sheet Flow controller with integrated control valve AFQM(6), PN 16, 25, 40*

Technical data

AFQM 6 valve

Nominal diameter DN 40

k

value

VS

Range of max.
flow setting

∆p

1)

= 0.2 bar

b

m3/h

from 2.2 3.2

to 11 16

20 32

Stroke mm 8 12

Control valve authority % 100

Control characteristic Linear

Cavitation factor z 0.55 0.5

Leakage acc. to standard IEC 534 % of k

VS

Nominal pressure PN 16, 2 5

Min. differential pressure

Max. dif ferential pressure PN 16 16

bar

Max. dif ferential pressure PN 25 20

Medium Circulation water / glycolic water up to 30%

Medium pH Min .7, ma x.1 0

Medium temperature °C 2 … 150

Connections Flange

Materials

Valve body

PN 16 Grey cast iron EN-GJL-250 (GG-25)

PN 25 Ductile cast iron EN -GJS-400-18-LT (GGG-40.3)

Valve seat DP, CV Stainless steel mat. No. 1.4021

Valve cone DP, CV Stainless steel mat. No. 1.4404

Sealing DP EPDM

Sealing CV Metal

Pressure relieve
system

Control valve insert -

Valve insert Bellows (Stainless steel mat. No. 1.4571)

Note:

DP - diff. pressu re controller, CV - control valve

1)

∆pb - differe ntial pressure over flow restri ctor

2)

Depends o n the flow rate and valve kVS ; For Q

3)

Could be conver ted by actuator AME 65x to logarithm ic

= Q

-> ∆p

set

max

≥ 0.5 bar; For Q

min

< Q

set

≤ 0.01

see remark

->

p 

max

50

3)

2)

2





Q







min




p



k

VS



b

AFQM 6 Actuator

For valve DN 40 50

Actuator size cm

Max. operational pressure

Flow restrictor dif f. pressure

ΔP

b

Materials

Housing Stainless steel M. No. 1.0338

Diaphragm

Impulse tube Stainless steel tube Ø10 × 0.8 mm

bar

2

250

25

0.2

EPDM (Rolling; fibre enforced)

© Danfoss | 2017.02

VD.LR.A8.02 | 3

Data sheet Flow controller with integrated control valve AFQM(6), PN 16, 25, 40*

Technical data (co ntinuous)

AFQM valve

Nominal diameter DN 65 80 10 0 125 150 200 250

kVS value m3/h 50 80 125 160 280 320 400

from

to 28 40 63 80 145 190 280

m3/h

from 5.6 8.0 12.6 16 30 38 56

to 40 58 76 91 220 285 420

Range of max.
flow setting

∆pb 1) = 0.2 bar

∆pb 1) = 0.5 bar

Stroke mm 12 18 20 25 27

Control valve authority % 100

Control characteristic Linear

Cavitation factor z 0.5 0.4 0.35 0.3 0.3 0.2 0.2

Leakage acc. to standard IEC 534 % of k

Nominal pressure PN 16, 2 5 16

Min. differential pressure

Max. dif ferential pressure PN 16 16 16 15 15 12 10 10

bar

Max. dif ferential pressure PN 25 20 20 15 15 -

Medium Circulation water / Glycolic water up to 30 %

Medium pH Min .7, ma x.1 0

Medium temperature °C 2 … 150 2 … 140

Connections Flange

Materials

Valve body

PN 16 Grey cast iron EN-GJL-250 (GG-25)

PN 25 Ductile iron EN- GJS-400 -18-LT (GGG-40. 3) -

Valve seat DP, CV Stainless steel M. No. 1.4021

Valve cone DP, CV Stainless steel mat No. 1.4404 Stainless steel mat. No. 1.4021

Sealing DP, CV EPDM

Pressure relieve
system

Control valve insert

Valve insert Diaphragm (EPDM)

Note:

DP - diff. pressu re controller, CV - control valve

1)

∆pb - differe ntial pressure over flow restri ctor

2)

Depends o n the flow rate and valve kVS ; For Q

3)

Could be conver ted by actuator AME 65x to logarithm ic

5.6 8.0 12.6 16 30 38 56

3)

VS

≤ 0.01

see remark

2)

Bellows

(stainless steel mat No. 1.4571)

= Q

-> ∆p

set

max

≥ 0.5 bar; For Q

min

< Q

->

max

p 

min

set

2





Q











k

VS





p

Piston

b

AFQM actuator

For valve DN 65 80 10 0 125 15 0 200 250

Actuator size cm

Max. operational pressure

Flow restrictor dif f. pressure

∆pb 0.2 or 0.5

Materials

Housing Stainless steel M. No. 1.0338

Diaphragm EPDM (Rolling; fibre enforced)

Impulse tube Stainless steel tube Ø10 × 0.8 mm

bar

2

250

16 or 25

4 | VD.LR.A8.02

© Danfoss | 2017.02