GB-2
D
GB
F
NL
I
E
Checking the usage
Intended use
Gas solenoid valves VAS for safeguarding gas or air
on various appliances. Double solenoid valves VCS
are combinations of two gas solenoid valves VAS.
This function is only guaranteed when used within the
specified limits – see page 13 (Technical data). Any
other use is considered as non-compliant.
Type code
Code
Description
VAS
Gas solenoid valve
1 –
Sizes
T
T-product
10 – 65
Inlet and outlet flange nominal size
R
N
Rp internal thread
NPT internal thread (ANSI/ASME)
/N
/L
Quick opening, quick closing
Slow opening, quick closing
W
Q
K
P
Y
Mains voltage:
230 V AC, 50/60 Hz
120 V AC, 50/60 Hz
24 V DC
100 V AC, 50/60 Hz
200 V AC, 50/60 Hz
S
G
With visual position indicator
and proof of closure switch
and proof of closure switch for 24 V
R
L
Viewing side (in flow direction):
from the right
from the left
1
Electrical connection:
plug with socket
plug without socket
M20 cable gland
Part designations
VAS..S, VAS..G
VAS
1
2
3
4
5
6
7
1
Solenoid actuator
Flow body
Connection box
4
Connection flange
5
Proof of closure switch
6
Connection parts
7
Sealing plug
Mains voltage, electrical power consumption, ambi-
ent temperature, enclosure, inlet pressure and instal-
lation position: see type label.
Elster GmbH
Osnabrück, Made in Germany
VAS ...
.XXXX
Installation
CAUTION
Please observe the following to ensure that the gas
solenoid valve is not damaged during installation
and operation:
– Sealing material and dirt, e.g. thread cuttings,
must not be allowed to get into the valve hous-
ing.
– A filter must be installed upstream of every sys-
tem.
– It is not permitted to install gas solenoid
valve VAS downstream of flow rate regula-
tor VAH/VRH and upstream of fine-adjusting
valve VMV. The VAS would no longer be able
to perform its function as a second safety valve
if installed in the above-mentioned position.
– Dropping the device can cause permanent
damage. In this event, replace the entire device
and associated modules before use.
– If more than three valVario controls are installed
in line, the controls must be supported.
– Do not clamp the unit in a vice. Only secure the
flange by holding the octagon with a suitable
spanner. Risk of external leakage.
– Solenoid valves with overtravel switch and visual
position indicator VAS..SR/SL: actuator cannot
be rotated.
– In the case of double solenoid valves, the posi-
tion of the connection box can only be changed
by removing the actuator and reinstalling it ro-
tated by 90° or 180°.
▷
When joining two valves, determine the posi-
tion of the connection boxes, push through the
knock-outs in the connection boxes and install
a cable gland set before installation in the pipe-
work, see accessories, cable gland set for double
solenoid valves.
▷
Install the unit in the pipe free of mechanical
stress.
▷
For retrofitting a second gas solenoid valve, use
the double block seal instead of O-rings. The
double block seal is supplied with the seal set,
see accessories, seal set for sizes 1 – 3.