Ecolab Elados EMP KKS E60 - Maintenance; Replacing Suction;Return Valve

417101774_EMP_KKS_E60_E.doc - 60 - Rev. 8-03.10
11 Maintenance
CAUTION
Metering pumps must only be maintained by technically competent and authorized
persons.
)
NOTE
The maintenance interval is quarterly. Shorter intervals are recommended in the event of
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 (chapter 11.1
, Fig. 11.1) for dirt and impermeability.
# discharge connection (chapter 5
, Fig. 5.1) on the pump head (for diaphragm breakage).
# correct metering
# union nut (chapter 7.1.2
, Fig. 7.6 and chapter 7.1.3, Fig. 7.7)
# metering head screws (chapter 11.2
, Fig. 11.3, Pos. 2) (stable seat, 3 - 4 Nm)
)
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.
11.1 Replacing the suction / return valve
Pos. Designation
CONNECTION SET
1 Union nut
2 Clamping piece
A
3 Tapered part
SUCTION-/RETURN VALVE
4 O-Ring, Ø 10 x 2,5
5 Suction-/Return valve
B
6 O-Ring, Ø 14 x 2,5
C
ANGLE CONNECTION
PRESSURE VALVE
4 O-Ring, Ø 10 x 2,5
6 O-Ring, Ø 14 x 2,5
Pressure valve (pressure line)
I Valve spring
II Valve-ball
D
7
III O-Ring, Ø 12 x 1,5
# Disassemble the suction valve and pressure valve (pos. 5/7) with a crescent wrench (SW 22).
)
NOTE
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.
# Assemble all the O-rings.
# Screw in the suction valve and pressure valve in the correct position (torque of 2-3 Nm)
Fig. 11.1