Danfoss AFPQ 2/VFQ 22, AFPQ 2/VFQ 221, AFPQ 24/VFQ 22, AFPQ 24/VFQ 221 Data sheet
Data sheet
Differential pressure and flow controller (PN 16, 25, 40)
AFPQ 2 / VFQ 22(1) – return mounting, adjustable setting
AFPQ 24 / VFQ 22(1) – flow mounting, adjustable setting
Description
virtus.danfoss.com
The controller is a self-acting differential pressure
and flow controller primarily for use in district
heating systems. Direct operated, reliable and
high precise controller closes on rising differential
pressure or when set max. flow is exceeded.
The controller has a control valve with adjustable
flow restrictor, an actuator with two control
diaphragms and spring for differential pressure
setting. Differential pressure control and flow
control are independent.
Further on two valve versions are available:
∙ VFQ 22 with metallic sealing cone
∙ VFQ 221 with soft sealing cone
Together with Danfoss intelligent electrical
actuator AMEi 6 intelligent optimization
functions are available:
∙ iSET-intelligent substation efficiency
optimization
∙ iNET-intelligent network balancing
Main data:
∙ DN 65-250
∙ kVS 60-800 m3/h
∙ Flow range 5.6-500 m3/h
∙ PN 16, 25, 40
∙ Setting range: 0.2-1 bar / 0.5-1.5 bar
∙ Flow restrictor ∆pb: 0.2 bar or 0.5 bar
∙ Temperature: – Circulation water / glycolic
water up to 30%: 2 … 150°C
∙ Connections: – Flange
Ordering
Example 1:
Differential pressure controller,
return mounting, DN 65, kVS 60,
PN 16, metallic sealing, setting
range 0.5-1.5 bar, flow restrictor
Δpb 0.2 bar, T
– 1× VFQ 22 DN 65 valve
Code no: 065B 5570
– 1× AFPQ 2 actuator
Code no: 00 3G 5712
– 1×
Code no: 003G1838
– 1× Impulse tube set AF
Code no: 003G1391
Products will be delivered
separately.
150 °C, flange
max
AFPQ 2 DN 65 impulse tube set
AFPQ 2 impuls e tube set
Impulse t ube set AF
VFQ 22 Valve (metallic sealing cone)
Picture
DN
(mm)
65 60
80 80 065B5571 065B5578 065B5585
100 160 065B5572 065B5579 065B5586
125 250 065B5573 065B5580 065B5587
150 380 065B5574 065B5581 0 65B5588
200 650 065B5575 065B5582 065B5589
250 800 06 5B5576 065B5583 065B5590
k
VS
(m3/h)
Flanges acc. to EN 1092-1 150
VFQ 221 Valve (soft sealing cone)
DN
k
Picture
1)
PN40 available Q1 2022
(mm)
100 160 065B5602 065B5609 065B5616
125 250 065B5603 065B5610 0 65B 5617
150 380 065B5604 06 5B5 611 065B5618
200 650 065B5605 065B5612 0 65B5 619
250 800 065B5606 06 5B5613 065B5620
VS
(m3/h)
65 60
80 80 065B5601 065B5608 065 B5615
Flanges acc. to EN 1092-1 150
Connections
Connections
T
(°C)
T
(°C)
max.
max.
PN 16 PN 25 PN 40
065B5570 065B5577 065B5584
PN 16 PN 25 PN 40
065B5600 065B5607 06 5B5614
Code No.
Code No.
1)
1)
© Danfoss | 2022.03 AI388353838246en-010203 | 1
Data sheet AFPQ 2, AFPQ 24 / VFQ 22(1)
Ordering (continuous) AFPQ 2 / AFPQ 24 Actuators
Picture
Actuator size
(cm3)
160*
320
* avaliable from Q4/2022
Acessories - Impulse tube set
Picture
AFPQ 2 (return)
* avaliable from Q4/2022
Picture
AFPQ 24 (flow)
Accessories
Picture Type designation Description Connections Code No.
Impulse tube set AF
Compression fitting
Δp setting range
(bar)
0.2 - 1
0.5 - 1.5
0.2 - 1
0.5 - 1.5
Actuator size
(cm2)
160*
1)
Flow restrictor Δpb
(bar)
0.2
0.5 00 3G5 711 003G 5719
0.2 003 G5712 003G5720
0.5 003 G5713 0 03G5721
0.2
0.5 003 G5715 003G 5723
0.2 003G 5716 003G5724
0.5 003 G5717 003G5725
Valve
(DN)
65 0 03G1838 003G1839
80 00 3G1844 003G18 47
100 003G1845 003G1848
125 003G1846 003G18 49
65 0 03G184 0 003G18 41
80 003G186 2 003G18 68
100 003G1863 003G1869
320
125 003G18 64 00 3G1870
150 003G18 65 003G1871
200 003 G1866 0 03G1872
250 003G1867 003G1873
– 1× Copper tube Ø10 × 1 × 1500 mm
– 1× compression fitting for imp.
tube connection to pipe (G ⁄)
– 2× socket
For impulse tube Ø10 connections
to controller
for DN
AFPQ 2 (ret urn) AFPQ 24 (flow)
Code No.
003 G5710 003 G5718
65 -125
00 3G5714 0 03G5722
150-250
Code No.
AFPQ 2 (ret urn) AFPQ 24 (flow)
– 003G1391
G⁄ 003G1468
Shut off valve
Static throt tle valve 065B2909
Dynamic throttle valve
Adapter new AFP 2old VFG DN 15-2 50 0 03G17 80
AMEi 6 iSET
el actuator 230 V
AMEi 6
iSET
el actuator 24 V
AMEi 6 iNET
el actuator 230 V
AMEi 6 iNET
el actuator 24 V
1)
Consist of a nipple , compression ring and nut
2)
Available in 2022
For impulse tube Ø10 –
00 3G1401
2)
For impulse tube Ø10 /
connection to pressure actuator
Intelligent ∆p actuator with iSET
function
Intelligent ∆p actuator with iNET
function
G⁄ 0 03G17 71
082G4300
082G4301
082G4302
082G4303
2 | AI388353838246en-010203 © Danfoss | 2022.03
Data sheet AFPQ 2, AFPQ 24 / VFQ 22(1)
Installation position
Service kits
Picture Typ e
Pressure control
insert VFG/Q 22
Pressure control
insert VFG/Q 221
Pressure stuffing box VFG/Q 221
k
VS
(m3/h)
60
80 80 003 G1801
160 100 003 G1802
250 125 003G1803
380 150 003G18 04
650 200 0 03G1805
800 250 00 3G1806
60 65 00 3G1807
80 80 003G1808
160 100 003 G1809
250 125 003G1810
380 150 00 3G18 11
650 200 003 G1812
800 250 0 03G1813
PN DN Code No.
65 003G1800
16/2 5/40
65 -125 00 3G1730
150-250 00 3G1731
The controllers can be installed in any position.
AI388353838246en-010203 | 3© Danfoss | 2022.03
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