Vacuubrand MD 4 NT Instructions For Use Manual - Notice
Documents are only to be used and distributed completely and unchanged. It is strictly the users’ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999155 / 29/01/2009
page 8 of 36
• Before starting maintenance vent the pump, isolate the pump and other compo-
nents from the vacuum system. Allow sufficient cooling of the pump. Drain con-
densate, if applicable.
Ensure that
maintenance
is done only by suitably trained and supervised techni-
cians. Ensure that the maintenance technician is familiar with the safety procedures
which relate to the products processed by the pumping system.
In order to comply with law (occupational, health and safety regulations, safety at
work law and regulations for environmental protection) vacuum pumps, components
and measuring instruments returned to the manufacturer can be repaired only when
certain procedures (see section
”Notes on return to the factory”
) are followed.
Additional safety information for diaphragm pump ME 4R NT
Intended use
☞
Comply with notes on how to connect the equipment correctly to vacuum and
pressure systems, see section ”Use and operation”.
Use the equipment
for the intended use only
, i.e. to generate vacuum or to com-
press gases in vessels designed for that purpose.
Setting up and installing the equipment
☞
When
operating the pump as a pressure pump
, ensure that the maximally
generated overpressure is compatible with the mechanical stability of the pres-
sure vessel. Overpressure may be generated only in vessels which are designed
for that purpose.
Risk of bursting!
Attention:
Obey the maximally admissible pressure (
4 bar absolute
) at the out-
let. The pump has an overpressure safety relief device at the pressure adjust-
ment device at the outlet (opening pressure: 4 bar absolute). If necessary install
an additional overpressure safety relief device in the pressure system. Flexible
elements tend to expand when pressurised.
☞
Do not permit any
uncontrolled pressurizing
(e.g. make sure that the exhaust
pipeline cannot become blocked).
Risk of bursting!
☞
Especially when using the pump as vacuum pump ensure a free and pressure-
less exhaust pipeline.
• Obey
maximum permitted pressures
at inlet and outlet and pressure differ-
ences between inlet and outlet, see section ”Technical data”. Do not start the
pump with overpressure at the inlet.