IWAKI PUMPS EHN-R, Instruction Manual

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25
Ins
tal
lation
Pipework
Mount the check valve at the discharge tube end.
* The CA check valve and the BVC back pressure valve have R1/2 and R3/8
thread connections as well as tube connection. Cut off and adjust the connec-
tion length to
fi t the check valve into tubing.
CA check valve BVC back pressure valve (for FC type)
* The CB check valve of which the both ends are tube connection is also avail-
able. Contact us or your nearest dealer.
CB check valve
NOTE
Periodically clean or replace the check valve with new one because it may be clogged
by crystal.
Tubing layout
Flooded suction application Suction lift application
* Flooded suction is recommended when handling a gaseous liquid such as sodium
hypochlorite.
Outer dia Ф 9 R1/2
R3/8
Outer dia Ф 12 R1/2
R3/8
1
Check valve
Accumulator
Check valve
Accumulator
Pump
Pump