VACUUBRAND MZ 2C EX +IK+EK - Manual (Page 33)

page 33 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
Spare parts
Set of seals (diaphragms, valves, O-rings)
MZ 2C EX / MZ 2C EX + AK + EK / MZ 2C EX + IK + EK .....................................................1 x 696837
MD 4C EX / MD 4C EX + AK + EK .........................................................................................2 x 696837
MV 10C EX / MV 10C EX + AK + EK ......................................................................................4 x 696837
Sealing bond (PTFE) ..................................................................................................................637514
Valve (one piece) .........................................................................................................................637225
(internal overpressure valve in MD 4C EX, MD 4C EX + AK + EK, MV 10C EX, MV 10C EX + AK + EK)
O-Ring 28 x 2.5.............................................................................................................................635628
at the spherical ground joint of the catchpot at the inlet
Flat seal (overpressure safety valve at the outlet) ........................................................................637081
Spring (overpressure safety valve at the outlet) ...........................................................................637065
☞
Please read section ”Replacing diaphragms and valves” com-
pletely before starting maintenance.
Partially the pictures show pumps in other versions. This doesn’t influence re-
placing diaphragms and valves of the pump.
If not using genuine spare parts the ATEX conformity becomes invalid.
Attention: Open the pump only outside of explosive atmospheres and only by
suitably trained personnel.
Always replace both diaphragms of a pump head!
Always disassemble and assemble only one pump head before opening the
next pump head. The single parts of a pump head are measured in a way so to
avoid that the diaphragm clamping disc hits the head cover. Never mix parts
of different pump heads or add or leave out washers.
We recommend to replace all diaphragms and valves of a pump at the same
time.
Attention:
The pump heads of VACUUBRAND ATEX diaphragm pumps are
assembled in two different versions. This is only visible after dis-
assembling the pump heads.
Replacing diaphragms and valves is described for both versions
separately.
Attention: The pump might be contaminated with the process chemicals that have
been pumped during operation. Ensure that the pump is decontaminated before
maintenance and take adequate precautions to protect people from the effects of
dangerous substances if contamination has occurred.
☞
Wear appropriate safety-clothing when you come in contact with contaminated
components.
NOTICE
NOTICE
NOTICE