Ecolab Elados EMP III-E00 - Maintenance; Replacement of Suction Valve; Pressure Valve

417102233 Betriebsanleitung EMP III E00, E10
- 40 -
Rev. 02-11.13
8 Maintenance
CAUTION
Metering pumps may only be maintained by expert, authorised personnel.
Prior to repair and maintenance work and metering of dangerous media, always rinse the
metering head, relieve the pressure pipe and wear protective clothing (protective goggles,
gloves and apron).
Electrical repairs must only be carried out by electricians in accordance with prevailing CE
guidelines. In addition, current national regulations and local utility guidelines must be
followed!
When opening the covers or removing parts, except when this is possible without tools,
voltage-carrying parts may be exposed. Connection points may also be under live
voltages.
Before calibration, maintenance, repairs or replacement of parts, the device must be
disconnected from all voltage sources if it is necessary to open up the device.
NOTE
Half yearly maintenance interval, shorter intervals if load is greater (e.g. constant running).
The following inspections are recommended:
 suction pipes and pressure pipes for leak-free connections
 suction valve and pressure valve (see chapter
8.1 “Replacement of Suction valve /
Pressure valve”, fig 8.1, pos. B5, C5 and fig. 8.2, pos B5) for dirt and tightness.
 discharge connection (see chapter
5.1 “Setup”, fig 5.1, pos. 1) on the pump head
(for diaphragm breakage).
 correct metering
 metering head screws (stable seat, 6 ±1 Nm)
(see chapter
10.1, “Exploded drawings type 00160, 00250 & 00540” Fig. 9.4, Pos. 3)
NOTE
The life of the diaphragm depends on the:
backpressure, operating temperature and metering medium.
It is recommended to inspect the diaphragm more frequently in extreme operating
conditions or if abrasive substances are metered.
8.1 Replacement of Suction valve / Pressure valve
Fig. 8.1
Type 00160 - 00540
Fig. 8.2
Type 00800 - 01200
Pos.
Description
Pos.
Description
A
CONNECTION SET
A
CONNECTION SET
1
Union nut
1
Union nut
2
Clamping piece
2
Clamping piece
3
Tapered part
3
Tapered part
B
PRESSURE VALVE
B
SUCTION-/
PRESSURE VALVE
4
O-Ring, Ø 12 x 2,5
4
O-Ring, Ø 28 x 3,5
5
Pressure valve
5
Suction-/Pressure
valve
6
O-Ring, Ø 18 x 2,5
7
O-Ring, Ø 16 x 2,5
8
O-Ring, Ø 7,65 x 1,78
C
SUCTION VALVE
4
O-Ring, Ø 12 x 2,5
5
Suction valve
6
O-Ring, Ø 18 x 2,5
7
O-Ring, Ø 16 x 2,5