VACUUBRAND MZ 2C EX +IK+EK - Manual (Page 8)

page 8 of 75
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.: 999128 / 29/04/2014
Inlet
☞
Connection lines at the pump inlet have to be performed conductive grounded
and gas tight (designation of the pump connections see figures).
☞ The diameter of the inlet pipeline should be at the least as large as the diameter
of the pump connection pipelines.
☞ Obey max. inlet pressure (see ”Technical data”).
☞ If there is a risk of ignition of gases or gas mixtures before or behind the pump the
user has to provide suitable safety devices against incoming of flames according
to EN 12874. The user must ensure the suitability concerning gas flow, chemical
resistance and safeness against clogging prior to use.
Outlet
☞
Connection lines at the pump outlet (small flange) have to be performed conduc-
tive grounded and gas tight (designation of the pump connections see figures).
☞ The diameter of the inlet pipeline should be at the least as large as the diameter
of the pump connection pipelines.
☞ Obey max. inlet pressure (see ”Technical data”).
Due to the high compression ratio of the pumps, pressure at the outlet port might
be generated being higher than the max. permitted pressure compatible with the
mechanical stability of the system.
☞
Obey maximum permitted pressures and pressure differences, see section ”Tech-
nical data”. Do not operate the pump with overpressure at the inlet.
☞ Do not permit any uncontrolled pressurizing (e. g. make sure that the exhaust
pipeline cannot become blocked). If you have an exhaust-isolation valve, make
sure that you cannot operate the equipment with the valve closed. Risk of burst-
ing!
☞ Ensure that the system design does not allow the exhaust pipeline to become
blocked. Lead away exhaust gas or condensate at the outlet of the pump and the
overpressure safety valve under consideration of all applicable safety measures.
Avoid backflow of gases or condensate definitely.
☞ Ensure that the system design does not allow the coolant outlet pipeline to be-
come blocked.
☞ Escaped and/or intentional or unintentional released inflammable gases or va-
pours which may lead to danger of explosion have to be lead away safely or lead
to an appropriate place. If not possible enclose the gasses, vapours or mist safely
or dispose in an other way. In case of mixtures or different gases the measures
must consider the highest risk.
☞ If there is a risk of ignition of gases or gas mixtures before or behind the pump the
user has to provide suitable safety devices against incoming of flames according
to EN 12874. The user must ensure the suitability concerning gas flow, chemical
resistance and safeness against clogging prior to use.
Check the overpressure safety valve at the outlet regularly.
☞
Attention: If the exhaust pipeline is blocked the pumped gases may escape into
the environment through the overpressure safety valve. If necessary take appro-
priate measures.
If pumping dangerous gases install a second completely independent exhaust
pipeline instead of the overpressure safety valve. If necessary assemble a hose
nozzle instead of the overpressure safety valve to lead away the gases through
a second exhaust pipeline. Attention: Never combine the exhaust pipelines, i. e.
provide a sperate line for each exhaust.