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Operation
1.Pump start up
1) Open the air valve in front of each piece of peripheral equipment, and adjust the supply air pressure with a regulator to within the
permissible range.
2) Open the flow valve on the discharge side.
3) Sowly open the air valve of the pump.
4) Before allowing the pump to run at full pressure, first, verify that the pump is primed and fluid is flowing inside the piping and is being
pumped to the discharge side, and then fully open the air valve.
WARNING
• If air pressure and discharge pressure exceed the allowable working pressure, it may cause liquid leaks, damaged pump casings
or diaphragms and could cause a fatal accident.
2.Liquid flow adjustments
・ Adjust the flow valve on the discharge side. To see the relationship between the flow rate, supply air pressure and discharge pressure,
see [Performance curves].
CAUTION
・ As you start closing the liquid discharge flow valve, the supplied air pressure may rise. Make sure that the pressure is kept
within the normal operating range.
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・ Depending upon the viscosity and specific gravity of the fluid, the suction stroke and other conditions, the permissible suction
flow speed of fluid into the pump will vary; however, if the pump speed (flow speed of fluid) increases greatly, cavitation could
occur, and this will not only reduce pump performance, but it may cause a malfunction. To prevent cavitation adjust the supply
air pressure as well as the Discharge flow valve.
・ If fluid is not discharged after you start the pump, or if you hear an abnormal noise or notice any irregularity, shut down the
pump immediately (see [Troubleshooting]).
3.Stopping the Pump
・ Close the air valve of the pump and shut off the supplied air.
CAUTION
・ It is permissible to shut down the pump by closing the liquid discharge flow valve even while air is still being supplied to the
pump. However, if this condition continues for a long period without supervision, the pump may start running if there is a leak
from the pump or piping, and therefore fluid may continue flowing out of the position of leakage.
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Summary of Contents for TC-X400A M Series
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