Maintenance; Replacing The Suction / Pressure Valve; Installation Drawing - Ecolab Elados EMP IV E00 Notice Technique

8

Maintenance

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).
Metering pumps must only be maintained by technically competent and authorized
CAUTION
persons.
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.
The maintenance interval is quarterly. Shorter intervals are recommended in the event of
NOTE
heavy loads (e.g. continuous use).
The following inspections are recommended:
 suction pipes and pressure pipes for leak-free connections.
 suction valve and pressure valve (see chapter
for dirt and tightness.
 discharge connection (see chapter
(for membrane burst).
 correct metering.
 metering head screws (see chapter
fig. 8.3, pos. 1), (stable seat, 12 Nm).
 Oil-level on oil-level gauge glass (minimum level see Fig. 8.4).
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
NOTE
conditions or if abrasive substances are metered.
Gear oil should be changed after a max. of 10.000 hours of operation or after two years
(see chapter
8.1

Replacing the suction / pressure valve

 Loosen valve anti-clockwise with an appropriate open-jawed spanner
(1¼"-valve SW 41; 2"-valve SW 56) and unscrew valve.
 Carefully remove O-ring.
 Screw-in valve into metering head; take account of direction arrow! (points upwards).
Fig. 8.1
8.1.1

Installation drawing

417101090_EMP_IV_E00_E10
5
8.2
8.3 "Gear oil change").
On the suction valves and pressure valves, the flow direction is
marked with an engraved arrow. When inserting it, always ensure
that the valves are inserted according to the flow direction!
Pos. Description
SUCTION-/PRESSURE VALVE
Type 01400 up to Type 02100
A
1 O-ring, Ø 28 x 3,5
2 Suction-/Pressure valve
SUCTION-/PRESSURE VALVE
Type 04500 up to Type 07500
B
1
O-ring, Ø 40,87 x 3,53
2
Suction-/Pressure valve
Fig. 8.2
8.1 "Replacing the suction / pressure valve"
"Setup" fig. 5.1) on the pump head
"Metering head and diaphragm replacemen"
- 46 - Rev. 8-06.13