Caramatic DriveTwo
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Artikel-Nr. 71 825 50
Pressure relief valve PRV
The pressure relief valve (PRV) is an automatic safety device with limited flow that is installed
in the pressure regulator to protect connected devices against inadmissible high pressures. If
there is inadmissible high pressure at the outlet side, for example due to high temperatures,
the PRV opens and relieves the excess pressure through the breather. When the pressure
falls, the PRV closes again automatically.
A connection to the open air must be created if a pressure regulator with PRV is to be
operated in gas bottle locker or in gas cylinder case.
"PRV" is marked on the type label of the pressure regulator.
Automatic changeover valve are used in two cylinder systems
•
Automatic changeover to the reserve gas cylinder as soon as the gas cylinder on the
operating side is empty.
•
The gas cylinder can be replaced without interrupting operation.
•
Only alternating withdrawal is possible.
•
Display of which side the gas is supplied from.
•
The non-return valve installed in the inlet nozzle prevents unintentional gas leakage when
changing the cylinder.
•
Even gas supply through the optimum use of the gas cylinder content.
•
Europe-wide use through the use of country-specific high-pressure hose assemblies (not
included in the delivery).
ASSEMBLY
Before assembly, check that the product is complete and has not suffered any
damage during transport.
ASSEMBLY must be carried out by a specialised
company.
See USER QUALIFICATION!
The specialised company and the operator must observe, comply with and understand all of
the following instructions in this assembly and operating manual. For the system to function
as intended, it must be installed professionally in compliance with the technical rules
applicable to the planning, construction and operation of the entire system.
Consider installation location and installation position (see instructions on INTENDED USE).
Risk of injuries due to blown-out metal chips!
Metal chips may cause eye injuries.
Wear safety goggles!
Malfunctions caused by residues!
Proper functioning is not guaranteed.
Visually check that there are no metal chips or other residues in the connections!
It is important that metal chips or other residues are blown out!
Install with suitable tools, if required.
Regarding screw connections, use a second spanner to brace against the connection
nozzle.
Do not use unsuitable tools, such as pliers.
Product damaged through incorrect installation direction
Proper functioning is not guaranteed.
Observe the installation direction (marked on the product with an arrow ).
