Danfoss VFG 2, VFGS 2 Data sheet

Data sheet
Pressure reduction controller (PN 16, 25, 40)
AFD / VFG 2(1) - for water AFD / VFGS 2 - for steam
Description
Ordering
Example 1: Pressure reduction controller; for water; DN 15; kVS 4.0; PN 16; metallic sealing; setting range 0.15-1.5 bar; T
150 °C; flange;
max
– 1× VFG 2 DN 15 valve Code no: 065B2388 – 1× AFD actuator Code no: 003G1005 – 1× Impulse tube set AF Code no: 003G1391
Products will be delivered separatly.
Impulse tube set AF
The controller is a self-acting pressure reduction controller primarily for use in district heating systems. The controller is normally open and closes on rising pressure.
VFG 2 Valves (metallic sealing cone) – for water
Picture
(mm)
15 4.0 20 6.3 065B2389 065B2402 065 B2412 25 8.0 0 65B2390 065B2403 06 5B2413 32 16 065B 2391 065B2404 06 5B2414 40 20 065B2392 065B2405 0 65B2415 50 32 065B2393 065B2406 065B 2416 65 50 065B2394 065B2407 0 65B2417
80 80 065B2395 065B2408 065B 2418 100 125 065B2396 065B2409 065B2 419 125 160 065B2397 0 65B2 410 065B2420 150 280 200 320 065B2399 065B2422 250 400 065B2400 065B2423
k
VS
(m3/h)
Connections
Flanges acc. to
EN 1092-1
The controller has a control valve, an actuator with one control diaphragm and a spring for pressure setting.
Further on three valve versions are available: – VFG 2 for water, with metallic sealing cone – VFG 21 for water, with soft sealing cone – VFGS 2 for steam, with metallic sealing cone
Main data: ∙ DN 15-250 kVS 4.0-400 m3/h ∙ PN 16, 25, 40 Setting range:
0.05-0.35 bar / 0.15-1.5 bar / 0.1-0.7 bar /
0.5-3 bar / 1-6 bar / 3-12 bar / 8-16 bar
Temperature:
– VFG -Circulation water / glycolic water up to
30 %: 2 … 150 / 200 °C
– VFGS -Steam / circulation water / glycolic
water up to 30 %: 2...200/300/350
Connections:
– Flange
T
(°C)
150
150
max
Code No.
PN 16 PN 25 PN 40
065B2388
065B2398
T
(°C)
200
150
max
1)
Code No.
065B2401 06 5B 2411
065B2421
2)
150 200 250
1)
At temperature s above 150 °C only with seal p ots (see Accessories)
2)
Valve has valve body ex tension (VBE)
280
2)
320 On request
2)
400 On request
200
1)
On request
© Danfoss | 2018.11 AI194086471473en-001201 | 1
Data sheet Pressure reduction controller AFD/VFG, VFGS
Ordering (continuous)
Example 2: Pressure reduction controller; for water; DN 15; kVS 4.0; PN 25; metallic sealing; setting range 0.15-1.5 bar; T
200 °C; flange;
max
– 1× VFG 2 DN 15 valve Code no: 065 B2401 – 1× AFD actuator Code no: 003G1005 – 1× Impulse tube set AF Code no: 003G1391 – 1× Seal pot V1 Code no: 003G1392
Products will be delivered separatly.
Seal pot V1
Impulse t ube set AF
Example 3: Pressure reduction controller; for steam; DN 15; kVS 4.0; PN 25; metallic sealing; setting range 0.15-1.5 bar; T flange;
– 1× VFGS 2 DN 15 valve Code no: 065B2443
1× AFD actuator
Code no: 003G1005 – 1× Impulse tube set AF Code no: 003G1391 – 1× Seal pot V1 Code no: 003G1392 – 1× Stem extension ZF4 Code no: 003G1394
max
350 °C;
VFG 21 Valves (soft sealing cone) – for water
Picture
DN
(mm)
15 4.0 20 6.3 065B2503 25 8.0 065B2504 32 16 065B2505 40 20 065B2506 50 32 065B2507 65 50 065B2508
80 80 065B2509 100 125 065B2 510 125 160 06 5B2 511 150 280 200 320 065B2513 250 400 065B 2514
Note: othe r valves available on special r equest.
k
VS
(m3/h)
VFGS 2 Valves (metallic sealing cone) – for steam
Picture
DN
(mm)
k
VS
(m3/h)
15 4.0 2.5 20 6.3 4.0 065 B2431 065B2444 065B2454 25 8.0 6.3 065B2432 065B2445 0 65B2455 32 16 10 065B2433 065B2446 065B2456 40 20 16 065B2434 065B2 447 065B24 57 50 32 25 065B2435 065B2448 065B2458 65 50 40 065B2436 065B2449 065B2459
80 80 63 065B2437 065B2450 065B2460 100 125 100 065B2438 065B 2451 0 65B24 61 125 160 125 065B2439 065B2452 065B2462
3)
150 200 250
280 200
3)
320 225 065B24 41 065B2464
3)
400 280 065B2442 065B2465
k
VS
(m3/h)
1)
T
(° C)
150
150
max
Connections
Flanges acc. to
EN 1092-1
Code No.
PN 16 PN 25 PN 40
065B2430
2)
T
(° C)
350
max
065B2443 0 65B2453
2)
065B2440
2)
300
2)
T
(°C)
max
Code No.
PN 16
065B2502
150
06 5B2512
150
Code No.
065B2463
Products will be delivered separatly.
Seal pot V1
Stem extension ZF4
Impulse t ube set AF
1)
Valves with built in fl ow divider for noise reduc tion (see accessories)
2)
Max. media tem peratures for valves VFGS 2 (in steam ap plications always accessorie s have to be used – see table below)
3)
Valve has valve body ex tension (VBE) and pre- installed flow divide r
Max. media temperatures and use of accessories
Steam temp.
DN 15-125 DN 150-250 D N 15-125 DN 150-250 D N 15-12 5 DN 150-250
up to 150 °C SP SP + VBE
up to 200 °C 200 … 300 °C SP + ZFx SP + ZFx SP + VBE 300 … 350 °C SP + ZFx SP + ZFx
Remark following access ories have to be used as stated in table ab ove:
SP Seal pot ZF – Stem extensi on VBE – Valve with valve body ex tension
– Valve is not to be used
See Accessories
PN16 PN25 PN40
SP SP SP + VBE
2 | AI194086471473en-001201 © Danfoss | 2018.11
Data sheet Pressure reduction controller AFD/VFG, VFGS
Ordering (continuous)
AFD Actuators
Picture
Pressure setting range
(bar)
8-16 3-12 003G1001
For DN Code No.
DN 15-125
1-6 DN 150-250 003G1413 1-6
0.5-3 003G1003
DN 15-125
0.15 -1.5
0.1-0.7 003G1004
DN 15-250
0.05-0.35 003G1006
Accessories
Picture Type designation Description Connections Code No.
– 1× Copper tube Ø10 × 1 × 1500 mm
Impulse tube set AF
Seal pot V1
Seal pot V2
1)
1)
Compression fitting
port B
Combination piece KF3
4)
Combination piece KF2
port A
– 1 × compression fitting for imp. tube
connection to pipe (G ⁄)
– 2 × socket Capacit y 1 litre; with compression fittings for
imp. tube Ø10 Capacit y 3 litre; with compression fittings for
imp. tube Ø10, for actuator size 630 cm For impulse tube Ø10 connections to
2)
controller For combination with pressure actuators.
Electrical actuator connected on side (port B) only for ON/OFF function
For combination with thermostat - side connection to port B
2
003G1391
003G1392
003G1403
G ⁄ 003G1468
G 1⁄ / 2× G 1⁄
003G1000
003G1002
003G1005
00 3G1441
00 3G1440
Shut off valve
00 3G1401
For impulse tube Ø10
Throttle valve 065B2909
Flow dividers for VFGS 2
3)
Flowdivider DN 15, 20 Flowdivider DN 25, 32 065B2776 Flowdivider DN 40, 50 065B2777
Flowdivider DN 65, 80 065B2778
065B2775
Flowdivider DN 100, 125 065B2779
1)
Seal pot has to be use d on impulse tubes when T
2)
Consist of a nipple, com pression ring and nut
3)
Flowdividers can b e used in steam application f or noise reduction ; af ter instaling into the valve, valve’s k vs is reduced – see VFGS 2
table
4)
Port A - for connect ion of any type of actu ator
Accessories – Stem extensions
Picture Typ e
ZF4, 5 ZF6D40
1)
Stem extensio n has to be used always when T
2)
Condensate
3)
ZF6 can be used for stroke p osition indication
For valves DNT
ZF4 ZF5 350 Yes 003G1396 ZF6 200
15-125
D40 200 Yes 065B2986
≥ 200 °C and alwa ys in steam applications
max
1)
(°C)
max
Media
water steam
350
Yes
> 200 °C
max
Yes
Yes
Used for
sealing
2)
Yes
2)
Used for
isolation
Yes
3)
Code No.
003G1394
003G1393
AI194086471473en-001201 | 3© Danfoss | 2018.11
Data sheet Pressure reduction controller AFD/VFG, VFGS
Ordering (continuous)
Technical data
Service kits
Picture Type designation
Valve insert
Stuffing cone (with EPDM O-rings) 003G1464
DN
(mm)
k
VS
(m3/h)
for VFG 2 for VFG 21 for VFGS 2
15 4.0 065B2796 065B2790 065B2802
20 6.3 065B2797 065B2791 065B2803 25 8 32 16 40 20 50 32 65 50
80 80 100 125 125 160
065B2798 0 65B2792 065B2804
065B2799 0 65B2793 065B2805
065B2800 065B2794 065B2806
065B2801 065B2795 065B2807
150 280 065B2964 065B2966 250 400 065B2965
Code No.
Valves
Nominal diameter DN 15 20 25 32 40 50 65 80 10 0 125 150 200 250
kVS value
1)
kVS value Cavitation factor z 0.6 0.6 0.6 0. 55 0.55 0.5 0.5 0.45 0.4 0.35 0.3 0.2 0.2
Leakage acc. to standard IEC 534 (% of kVS)
VFG 2 ≤ 0.03 ≤ 0.05 VFG 21 ≤ 0.01 VFGS 2 ≤ 0.03 ≤ 0.05
Nominal pressure PN 16, 25, 40
Max. differential pressure
Media
PN 16 PN 25, 40 20 VFG 2, VFG 21 Circulation water / glycolic water up to 30 % VFGS 2 Steam /circulation water / glycolic water up to 30%
Media pH Min. 7, max. 10
VFG 2
Media temperature
VFG 21 2 … 150
3)
VFGS 2
Connections Flange
Materials
PN 16 Grey cast iron EN-GJL-250 (GG-25)
Valve body
PN 25 Ductile iron EN-GJS-400(GGG-40.3) PN 40 Cast steel GP240GH (GS -C 25)
Valve seat Stainless steel, mat. No. 1.4021
Valve cone Stainless steel, mat. No. 1.4404
Sealing
VFG 2, VFGS 2 Metal VFG 21 EPDM
Pressure relieve system Bellows (Stainless steel, mat. No. 1.4571) Diaphragm (EPDM)
1)
Valves with built in f low divider for noise redu ction (see Accessories)
2)
At temperature s above 150 °C only with seal p ots (see Accessories)
3)
In steam aplicatio ns always accessories have to be used – se e table on page 2 below
4)
On Request
4.0 6.3 8.0 16 20 32 50 80 125 160 280 320 400
m3/h
2.5 4.0 6.3 10 16 25 40 63 100 12 5
bar
16
2 … 150 / 2 … 200
15 12 10
2)
°C
2...200 / 2...300 /2...350 2 … 300
2 … 150 (200 4))
Stainless steel,
mat. No. 1.4313
Stainless steel,
mat . No. 1.4021
4 | AI194086471473en-001201 © Danfoss | 2018.11
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