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2 CHeCKInG tHe UsAGe
Magnetic relief valve, open when de-energized, for the
monitoring of gas valves for tightness used in conjunc-
tion with a visual discharge unit. For purging excess
or leakage gas.
This function is only guaranteed when used within the
specified limits – see page 6 (9 Technical data). Any
other use is considered as non-compliant.
2.1 type code
VAn
1–2
10–50
Inlet and outlet flange nominal size
R
/n
W
Mains voltage 230 V AC, 50/60 Hz
Q
Mains voltage 120 V AC, 50/60 Hz
K
P
Mains voltage 100 V AC, 50/60 Hz
Y
Mains voltage 200 V AC, 50/60 Hz
s
Closed position switch with visual posi-
G
Closed position switch for 24 V with
L
R
2.2 Part designations
VAN
1
2
1
Solenoid actuator
2
Flow body
3
Connection box
4
Connection flange
5
Closed position indicator
6
Connection parts
7
Sealing plug
2.3 type label
Mains voltage, electrical power consumption, ambient
temperature, enclosure, inlet pressure and installation
position: see type label.
Elster GmbH
Osnabrück, Germany
VAN
.XXXX
Magnetic relief valve
Rp internal thread
Quick opening, quick closing
Mains voltage 24 V DC
tion indicator
visual position indicator
Viewing side: left
Viewing side: right
VAN..S,
VAN..G
3
5
6
7
4
3 InstALLAtIon
CAUtIon
Incorrect installation
Please observe the following to ensure that the
magnetic relief valve is not damaged during instal-
lation and operation:
– Sealing material and dirt, e.g. thread cuttings,
must not be allowed to get into the valve
housing.
– A filter must be installed upstream of every
Sizes
system.
– Dropping the device can cause permanent
damage. In this event, replace the entire device
and associated modules before use.
– 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 closed position indicator
VAN..S or VAN..G: actuator cannot be rotated.
➔ Install the unit in the pipe free of mechanical stress.
➔ Installation position: black solenoid actu-
ator in the vertical upright position or tilt-
ed up to the horizontal, not upside down.
➔ The housing must not be in contact with masonry,
minimum clearance 20 mm (0.79").
1 Obey the direction of flow as marked on the hous-
ing.
2
4 WIRInG
WARnInG
Risk of injury!
Please observe the following to ensure that no
damage occurs:
– Electric shocks can be fatal! Before working on
possible live components, ensure the unit is
disconnected from the power supply.
– The solenoid actuator heats up during
operation. Surface temperature approx. 85°C
(approx. 185°F).
➔ Use temperature-resistant cable (> 80°C).
EN-2
3
4
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