Siemens VGD40.080/L - 2.4 VGD4;VRD4 Valve Details

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Building Technologies Operation Manual and Mounting Instructions VGD4 / VRD4 / SKPx5 CC1U7643en
14.03.2018
2.4 Description of the VGD4/VRD4 double gas
valve
Work on the VGD4/VRD4 double
gas valve may only be carried out
by qualified personnel.
mbar
Maximum operating pressure
Pmax = 100 kPa DN 40/50
Pmax = 70 kPa DN 65…150
Ambient temperature
-15...+60°C
Valve 1 + Valve 2, Class A, Group 2
according to EN 161
Gas Gaz
<60°C air
Family 1 + 2 + 3
7643z83/0817
Built-in filter, mesh size 0.9 mm
2.5 Mounting position
7
6
4
3
z
8
4
/
0
3
1
8
AGA66
Β
Note!
The AGA66 gasket set increases the degree of
protection for the valve combination from IP54 to
IP65!
2.6 Torques
Max. torques / flange connection and stud screws
according to DIN 939
∂ Tighten locking and connecting screws in the
appropriate manner
∂ Note the material pairing of aluminum/steel!
DN 40...100 M16 x 65 50 Nm
DN 125 M16 x 75 50 Nm
DN 150 M20 x 80 90 Nm
Max. torque of the pressure connections
M4 G1/8 G1/4 G3/4
3 Nm 8 Nm 15 Nm 35 Nm