Danfoss AVT / VGU, AVT / VGUF Data sheet
Data sheet
Temperature controller (NC) (PN 25)
AVT / VGU - external thread
AVT / VGUF- flange
Description |
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The AVT / VGU(F) is a self-acting proportional |
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temperature controller developed primarily for |
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AVT / VGUF |
cooling applications. |
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Controller opens on rising temperature. |
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TR(TW)700 |
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The controller has a control valve VGU(F), |
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thermostatic actuator and handle for |
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temperature setting. Thermostatic actuator |
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consist of bellows, capillary tube and sensor. |
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The temperature controller is type-tested |
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according to EN 14597. |
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Main data: |
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DN 15-50 |
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kVS 4.0 -25 m3/h |
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PN 25 |
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Setting ranges: |
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−10 … 40 °C / 20 … 70 °C / 40 … 90 °C / |
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60 … 110 °C |
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Temperature: |
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- Circ. water / glycolic water up to 30%: |
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2 … 150 °C |
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AVT / VGU |
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Connections: |
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- Ext. thread |
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(weld-on, thread and flange tailpieces) |
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- Flange |
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• Flow and return mounting. |
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Ordering
Example:
Temperature controller for cooling, DN 15; kVS 4.0 ; PN 25; setting range −10 … 40 °C; Tmax 150 °C; ext. thread
-1× VGU DN 15 valve Code No: 065B0791
-1× AVT thermostatic actuator, −10 … 40 °C
Code No: 065-0596
Option:
- 1× Weld-on tailpieces Code No: 003H6908
VGU, VGUF valve
Picture |
DN |
kVS |
Connection |
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Code No. |
(mm) |
(m3/h) |
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15 |
4.0 |
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G ¾ A |
065B0791 |
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20 |
6.3 |
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G 1 A |
065B0792 |
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25 |
8.0 |
Cylindrical external thread acc. to |
G 1¼ A |
065B0793 |
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32 |
12.5 |
ISO 228/1 |
G 1¾ A |
065B0794 |
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40 |
16 |
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G 2 A |
065B0795 |
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50 |
20 |
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G 2½ A |
065B0796 |
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32 |
12.5 |
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065B0797 |
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40 |
20 |
Flanges PN 25, acc. to EN 1092-2 |
065B0798 |
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50 |
25 |
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065B0799 |
© Danfoss | 2017.08 |
VD.JK.B6.02 | 1 |
Data sheet |
Temperature controller AVT / VGU(F) (PN 25) |
Ordering (continuous) |
AVT thermostatic actuator |
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Picture |
For valves |
Setting range |
Temperature sensor with brass immersion |
Code No. |
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(°C) |
pocket, length, connection |
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−10 … +40 |
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065-0596 |
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DN 15-25 |
20 … 70 |
170 mm, R ½ |
1) |
065-0597 |
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40 … 90 |
065-0598 |
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60 … 110 |
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065-0599 |
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−10 … +40 |
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065-0600 |
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DN 32-50 |
20 … 70 |
210 mm, R ¾ |
1) |
065-0601 |
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40 … 90 |
065-0602 |
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60 … 110 |
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065-0603 |
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10 … 45 |
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065-0604 |
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DN 15-50 |
35 … 70 |
255 mm, R ¾ 1) 2) 3) |
065-0605 |
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60 … 100 |
065-0606 |
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85 … 125 |
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065-0607 |
1)conic male thread EN 10226
2)without immersion pocket
3)setting range is for aprox. 5-10 °C higher as stated (see Adjustment diagram section)
Accessories for valves
Picture |
Type designation |
DN |
Connection |
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Code No. |
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15 |
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003H6908 |
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20 |
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003H6909 |
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Weld-on tailpieces |
25 |
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003H6910 |
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32 |
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003H6911 |
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40 |
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003H6912 |
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50 |
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003H6913 |
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15 |
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R ½ |
003H6902 |
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20 |
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R ¾ |
003H6903 |
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External thread tailpieces |
25 |
Conical ext. thread acc. to EN |
R 1 |
003H6904 |
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32 |
10226-1 |
R 1¼ |
003H6905 |
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40 |
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R 1½ |
065F6061 |
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50 |
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R 2 |
065F6062 |
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15 |
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003H6915 |
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Flange tailpieces |
20 |
Flanges PN 25, acc. to EN 1092-2 |
003H6916 |
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25 |
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003H6917 |
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Adapter 1) |
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M45 × 1.5 mm / M30 × 1.5 mm |
003H6928 |
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1) Adapter for VGU(F) combinations with electrical actuators type AMV(E) 20, 23, 30, 33.
Accessories for thermostats
Picture |
Type designation |
PN |
For valves |
Material |
Code No. |
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DN 15-25 |
Brass |
065-4414 1) |
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Immersion pocket |
25 |
Stainless steel, mat. No. 1.4571 |
065-4415 1) |
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DN 32-50 |
Brass |
065-4416 1) |
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Stainless steel, mat. No. 1.4435 |
065-4417 1) |
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1) Not for AVT thermostatic actuator code number: 065-0604, 065-0605, 065-0606, 065-0607 |
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Service kits
Picture |
Type designation |
for sensors |
Code No. |
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Housing of sensor stuffing box |
AVT R ½ |
065-4420 |
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AVT R ¾ |
065-4421 |
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2 | VD.JK.B6.02 |
© Danfoss | 2017.08 |
Data sheet |
Temperature controller AVT / VGU(F) (PN 25) |
Technical data |
Valves |
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Nominal diameter |
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DN |
15 |
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20 |
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25 |
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32 |
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40 |
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50 |
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kVS value |
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m3/h |
4.0 |
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6.3 |
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8.0 |
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12.5 |
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20 |
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25 |
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Stroke |
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mm |
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5 |
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Control ratio |
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>1:50 |
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Control characteristic |
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linear |
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Cavitation factor z |
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≥ 0.6 |
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≥ 0.55 |
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≥ 0.5 |
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Leakage acc. to standard IEC 534 |
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% of kVS |
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≤ 0.02 |
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≤ 0.05 |
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Nominal pressure |
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PN |
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25 |
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Max. differential pressure |
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bar |
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20 |
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16 |
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Medium |
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Circulation water / glycolic water up to 30% |
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Medium pH |
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Min. 7, max. 10 |
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Medium temperature |
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°C |
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2 … 150 |
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valve |
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External thread |
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External thread and flange |
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Connections |
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tailpieces |
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Weld-on and external thread |
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Flange |
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Materials |
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Valve body |
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Red bronze CuSn5ZnPb (Rg5) |
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Ductile iron |
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EN-GJS-400-18-LT (GGG 40.3) |
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Valve seat |
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Stainless steel, mat. No. 1.4571 |
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Valve cone |
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Dezincing free brass CuZn36Pb2As |
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Sealing |
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EPDM |
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Pressure relieve system |
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Piston |
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Thermostatic actuator
Setting range Xs |
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°C |
−10 … 40 / 20 … 70 / 40 … 90 / 60 … 110 |
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10 … 45 / 35 … 70 / 60 … 100 / 85 … 125 |
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Time constant T acc. to EN 14597 |
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s |
max. 50 (170 mm, 210 mm), max. 30 (255 mm) |
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Gain Ks |
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mm / °K |
0.2 (170 mm), 0.3 (210 mm), 0.7 (255 mm) |
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Max. adm. temperature at sensor |
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50 °C above maximum setpoint |
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Max. amb. temperature at sensor |
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°C |
0 … 70 |
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Nominal pressure sensor |
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PN |
25 |
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Nominal pressure immersion pocket |
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Capillary tube length |
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5 m (170 mm, 210 mm), 4 m (255 mm) |
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Materials |
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Temperature sensor |
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Cooper |
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Immersion pocket 1) |
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Ms design |
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Brass, nickel-plated |
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Stainless steel design |
Mat. No. 1.4571 (170 mm), mat. No. 1.4435 (210 mm) |
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Handle for temp. setting |
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Polyamide, glass fiber-reinforced |
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Scale carrier |
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Polyamide |
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1) for sensor 170 and 210 mm
Application principles
© Danfoss | 2017.08 |
VD.JK.B6.02 | 3 |
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