22
Plumbing
Mount a check valve at the discharge tube end.
*
The CAN check valve has the R1/2 and R3/8 thread connections as well as an
O.D.9mm tube connection. Cut off an unused part and adjust the connection
length as necessary.
CAN check valve
*
The CBN check valve (both ends tube connections) is optionally available.
Contact us or your nearest distributor.
CBN check valve
NOTE
• Periodically clean or replace a check valve with new one for the prevention of crystal
clogging, especially when using sodium hypochlorite.
• In the nature of the pump, the lower discharge pressure, the higher discharge capacity
(and vice versa). If you want to observe the max discharge capacity at any low level of
system (/discharge) pressure, use the check/back pressure valve to give the additional
pressure of 0.17MPa±0.04 to the discharge line or reduce the pump speed/stroke length.
Tubing layout
Flooded suction application
Suction lift application
NOTE
Flooded suction installation is strongly recommended when handling liquids that gener-
ate gas bubbles (sodium hypochlorite or hydrazine solution).
1
Check valve
Accumulator/Chamber
Pump
Pump
Accumulator/Chamber
Air vent line
Air vent line
Check valve
Relief valve
Relief valve
O.D.9mm
R1/2
R3/8
