Danfoss VGU, VGUF Data sheet
Data sheet
2 - way valve (NC), pressure relieved (PN 25)
VGU - external thread
VGUF - flange
Description
Ordering
Example:
Valve NC; DN 15; kVS 4.0 ; PN 25;
T
150 °C; ext. thread
max
- 1× VGU DN 15 valve
Code No: 065 B07 91
Option:
- 1× Weld-on tailpieces
Code No: 003H6908
VGU
VGU, VGUF valve
Picture
VGU and VGUF are pressure relieved 2-way
normally closed (NC) valves, designed to be
combined with:
- AVT Temperature actuators
- AMV(E) 20 / AMV(E) 30 electrical actuators
- AMV(E) 23 / AMV(E) 33 electrical actuators
with spring return function
In combination with AVT temperature actuators
and AMV(E) electrical actuators, valves can be
used primarily in cooling systems
Main data:
• DN 15-50
• kVS 4.0 -25 m3/h
• PN 25
• Temperature:
• Circulation water / glycolic water up to 30%:
2 …150 °C
• Connections:
• Ext. thread (weld-on, thread and flange
VGUF
tailpieces)
• Flange
• Flow and return mounting
DN k
(mm) (m3/h)
15 4.0
20 6.3 G 1 A 065B0792
25 8.0 G 1¼ A 065B0793
32 12.5 G 1¾ A 065B0794
40 16 G 2 A 065B0795
50 20 G 2½ A 065B 0796
32 12.5
40 20 065B0798
50 25 065B0799
VS
Cylindrical external thread acc. to
ISO 228/1
Flanges PN 25, acc. to EN 1092-2
Connection Code No.
G ¾ A 065B0791
065B0797
© Danfoss | 2017.09
VD.HD.V4.02 | 1
Data sheet 2 - way valve VGU, VGUF (NC), pressure relieved (PN 25)
Ordering (continuous)
Accessories
Picture Type designation DN Connection Code No.
15
20 003H6909
Weld-on tailpieces
External thread tailpieces
Flange tailpieces
1)
Adapter
1)
Adapter for VGU(F) comb inations with electrical a ctuators type AMV(E) 20, 23, 30, 33.
25 00 3H6910
32 0 03 H69 11
40 00 3H6912
50 0 03H6 913
15
20 R ¾ 003H6903
25 R 1 003H69 04
Conical ex t. thread acc. to EN
32 R 1¼ 003H6905
40 R 1½ 065F6061
50 R 2 065F6062
15
20 003H6916
25 0 03H6 917
10226-1
Flanges PN 25, acc. to EN 1092-2
M45 × 1.5 mm / M30 × 1. 5 mm 003H6928
-
R ½ 003H6902
003H6908
003H6 915
Technical data
Valves
Nominal diameter DN 15 20 25 32 40 50
kVS value m3/h 4.0 6.3 8.0 12 .5 20 25
Stroke mm 5
Control ratio >1:50
Control characteristic linear
Cavitation factor z ≥ 0.6 ≥ 0.55 ≥ 0.5
Leakage acc. to standard IEC 534 % of k
Nominal pressure PN 25
Max. differential pressure bar 20 16
Media Circulation water / glycolic water up to 30%
Media pH Min. 7, max. 10
Media temperature °C 2 … 150
valve External thread External thread and flange
Connections
Materials
Valve body Red bronze CuSn5ZnPb (Rg5)
Valve seat Stainless steel, mat. No. 1.4571
Valve cone Dezincing free brass CuZn36Pb2As
Sealing EPDM
Pressure relieve system Piston
tailpieces
VS
≤ 0.02 ≤ 0.05
Weld-on and external thread
Flange -
Ductile iron
EN-GJS-400-18-LT (GGG 40.3)
2 | VD.HD.V4.02
© Danfoss | 2017.09
Data sheet 2 - way valve VGU, VGUF (NC), pressure relieved (PN 25)
Application principles
Installation positions
Pressure temperature
diagram
Valves can be installed in any position.
Maximum allowed operating pressure as a function of medium temperature (according to EN 1092-2 and EN 1092-3).
Note!
Installation positions for AVT thermostatic actuator and
electrical actuators AMV(E) have to be observed as well.
Please see relevant Data sheet
EN-GJS -400-18-LT (GGG 40. 3) PN 25
CuSn5ZnPb (Rg5) PN 25
© Danfoss | 2017.09
VD.HD.V4.02 | 3
Loading...