50
Wear part replacement
To run the pump for a long period, wear parts need to be replaced periodically.
It is recommended that the following parts are always stocked for immediate replacement.
Contact your nearest distributor for detail.
Precautions
• Solution in the discharge line may be under pressure. Release the pressure from the
discharge line before disconnecting plumbing or disassembly of the pump to avoid solu-
tion spray.
• Rinse wet ends thoroughly with tap water.
• Each time the pump head is dismantled, replace the diaphragm and the valve sets with
new ones.
Wear part list
Parts
# of parts
Estimated life
Pu
m
p
Valve set
VC/VH/PC/PH
PP
2 sets
8000 hours
14
11
13
12
11
13
12
17
Diaphragm
1
O ring
26
27
25
31(42)
#42 O ring is used for the NAE type
See page 58-59
AUTO air vent valve set
(NAE type)
34 35 17
30
33
34
31
1 set
Ch
ec
k
val
ve Check valve poppet
(with an O ring)
1 set
Check valve spring
1
*
Wear part duration varies with the pressure, temperature and characteristics of liquid.
*
The estimated life is calculated based on pumping clean water at ambient temperature.
Wear part replacement
Summary of Contents for EHN-B11-NAE
Page 67: ...67 Specifications ...
