51I DELLMECO I EODD DIAPHRAGM PUMPS
Before connecting the pump, take the yellow blind plugs out of air inlet which is located on the top of the
damper head [
91
]. For correct operation, the dampener absolutely needs an air-supply of its own, which has to
be taken from the external source, because DME Pump and PDEM Pulsation Dampener cannot be connected
to the same air pressure (DME Pump is not supplied with air pressure). The driving air has to be oil-free, dry and
clean. An empty dampener has to be driven slowly (compressed air supply valve has to be opened gradually).
PDEM dampeners have to be manually regulated for all changing operating conditions.
PDEM PULSATION DAMPENER INSTALLATION APPEARANCE
Disassembly instructions
Remove plugs [
96
], then unscrew housing bolts [
92
] carefully. After that, all parts can be removed. Unscrew the
diaphragm [
4
] from the actuator shaft [
90
]. A re-assembly of used piston rings [
88
] nad O-rings [
89
] is impossible; they
have to be replaced including the O-rings [
89
] underneath. To assemble new piston rings [
88
] carefully shape them like
kidneys with locking ring pliers and insert them into the grooves. Next, completely press the rings into the grooves using
some round tool.
!
CAUTION
Before putting the pulsation dampener into operation as well as after some hours of operating, the housing bolts [
92
] have
to be tightened carefully, as the elements of construction tend to "settle". Fixing the bolts is necessary as well after longer
periods of stoppage, at extreme temperature variations, transport and after dismantling.
Before starting to disassemble the pump, take care that pump and dampener have been emptied and rinsed. Further, both
have to be cut off from any energy on the inlet and outlet (product) side. If pump and dampener are being deported from the
plant, a reference about the delivered liquid has to be attached.
Please respect the relevant additional security advices if the pump and the dampener have been used for aggressive,
dangerous or toxic liquids.
Before putting the pump and the dampener back into operation, the tightness of both (i.e. housing bolts) has to be checked.
DME Series Pump with installed PDEM Pulsation Dampener obligatorily has to be equipped with safety device (Push-Button
Switch or Pressure Relief Valve). For more information, please refer to Chapter 4 (page 6).
Summary of Contents for DME 15 R Series
Page 15: ...15I DELLMECO I EODD DIAPHRAGM PUMPS 5 4 DME 50 A C S Metal Series Diaphragm Pump exploded view...
Page 16: ...16 I DELLMECO I EODD DIAPHRAGM PUMPS 5 5 DME 80 A B Metal Series Diaphragm Pump exploded view...
Page 17: ...17I DELLMECO I EODD DIAPHRAGM PUMPS 5 6 DME 80 S Metal Series Diaphragm Pump exploded view...
Page 21: ...21I DELLMECO I EODD DIAPHRAGM PUMPS 5 8 DME 65 H Hygienic Series Diaphragm Pump exploded view...
Page 22: ...22 I DELLMECO I EODD DIAPHRAGM PUMPS 5 9 DME 80 H Hygienic Series Diaphragm Pump exploded view...
Page 39: ...39I DELLMECO I EODD DIAPHRAGM PUMPS DME Plastic Series Flow Characteristics...
Page 43: ...43I DELLMECO I EODD DIAPHRAGM PUMPS DME Metal Series Flow Characteristics...
Page 45: ...45I DELLMECO I EODD DIAPHRAGM PUMPS DME Hygienic Series Flow Characteristics...
Page 65: ...Notes...
