Maintenance; Replacing The Suction / Return Valve And Pressure Valve; Installation Drawing Suction / Return Valve And Pressure Valve - Ecolab Elados EMP KKS E10 Notice Technique

9

Maintenance

CAUTION
NOTE
The following inspections are recommended:
suction pipes and pressure pipes for leak-free connections
suction valve and pressure valve (chapter 9.2, Fig. 9.2) for dirt and impermeability.
discharge connection (chapter
correct metering
union nut (chapter 7.1.2, Fig. 7.5 and chapter 7.1.3, Fig. 7.6)
metering head screws (chapter 9.4, Fig. 9.3, Pos. 2) (stable seat, 3 - 4 Nm)
NOTE
9.1

Replacing the suction / return valve and pressure valve

Disassemble the suction valve and pressure valve (pos. 5/7) with a crescent wrench
(SW 22).
NOTE
Assemble all the O-rings.
Screw in the suction valve and pressure valve in the correct position (torque of 2-3 Nm)
Fig. 9.1
9.2

Installation drawing suction / return valve and pressure valve

Fig. 9.2
417101338_EMPKKS.doc
Metering pumps must only be maintained by technically competent and authorized
persons.
The maintenance interval is quarterly. Shorter intervals are recommended in the event of
heavy loads (e.g. continuous use).
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.
Please observe, that the valve spring (pos. I), valve-ball (pos. II) and the o-ring (pos. III) are
not lost and installed in the right direction at the pressure valve.
On the suction valves and flow 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!
5, Fig. 5.1) on the pump head (for diaphragm breakage).
Pos. Description
A
B
C
D
56
CONNECTION SET
1 Union nut
2 Clamping piece
3 Tapered part
SUCTION-/RETURN VALVE
4 O-Ring, Ø 10 x 2,5
5 Suction-/Return valve
6 O-Ring, Ø 14 x 2,5
ANGLE CONNECTION
PRESSURE VALVE
4 O-Ring, Ø 10 x 2,5
6 O-Ring, Ø 14 x 2,5
7 Pressure valve (pressure line)
I Valve spring
II Valve-ball
III O-Ring, Ø 12 x 1,5
Rev: 08-01.10