FST3.1VK type compatible overfill prevention device
Part no. 55 270 52
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GENERAL PRODUCT INFORMATION
As a safety device in LPG tanks, the overfill prevention device triggers approval for filling and
automatic shut-off of the road tanker pump as soon as a fill level of 83% (operational shut-off
point) is reached in the LPG tank. A dip valve serves as an additional safeguard in the overfill
prevention device. This must respond at 85% (safety-related shut-off point) at the latest (liquid
phase leaks out).
“The operational shut-off point must be set such that the safety-related shut-off point is not
reached. The safety-related shut-off point must be set such that the permissible fill level of the
LPG storage tank cannot be exceeded even through LPG overrun or through a delay in the
closing of the bottom valve.”*
*VdTÜV leaflet overfill prevention device 100
The gas withdrawal valve is used to open or cut off the gas supply to the connected consumer
equipment. There is a pressure gauge with a scale from 0 to 25bar on the gas withdrawal
valve for displaying the working pressure in the tank.
A pressure gauge for displaying the pressure during the tank test can be connected at the test
connection with cap. A pressure regulator with POL retaining screw can be connected at the
F POL outlet connector.
INTENDED USE
Place of operation
•
for installation in an LPG tank
•
operate indoors and outdoors, if protected against the weather (e.g. dome shaft)
Installation permitted in
EX protection zone
Ignition protection type
EEx ia II LPG T4
Overfill prevention device
1
The FST3.1VK type overfill prevention device meets the requirements for apparatus and
protection systems for intended use in areas where there is a risk of explosion according to
the ATEX directive 2014/34/EU. Other technical and organisational measures according to
Appendix 4 of the German Ordinance on Industrial Safety and Health must be taken.
In the case of systems in connection with areas where there is a risk of explosion,
compliance is required with the appropriately valid national regulations and installation
regulations!
In the case of repair work or changes to explosion-proof apparatus, compliance is
required with the national regulations!
In the case of repair work and maintenance,
original spare parts
may only be used.
Use in potentially explosive areas is admissible.
Installation by a specialised company that specialises in explosion protection
(ATEX Directive 1999/92/EC).
Installation inside the defined EX protection zone.
Operating media
•
LPG
}
Withdrawal: from the gas phase
Filling: limit indicator from the liquid phase
You will find a
list of operating media
with descriptions, the relevant
standards and the country in which they are used in the Internet at
www.gok.de/liste-der-betriebsmedien.
