YAMADA NDP-P20 Series, Руководство по эксплуатации

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10
CAUTION
• Even if you do not use the cushions to secure the pump in place, mount it in such a way that
vibration generated by pump operation will be absorbed.
• If the pump will be submerged during operation, follow the steps below:
*Verify the corrosion resistance of each component of the pump, and do NOT expose the
pump to any fluid for which it does not have proper corrosion resistance.
*Exhaust should directed outside, not into the fluid in which the pump is submerged.
For information on how to arrange the exhaust, see NOTE: Arranging outside exhaust and
Fig.3.2 below.
*Make sure that you can reach all of the valves without submerging your hand.
• When operating the pump, operation noise may be generated, depending upon conditions of
use (kind of fluid being pumped, supply air pressure and discharge pressure).
If any regulatory rules apply, provide appropriate acoustic measures. (For the noise level of
this product, see [10.1 Main specifications].)
• When pumping a hazardous fluid (hot, flammable, strong acid, etc.), provide protective
measures (installation of a pit or sensors, etc.) in consideration of possible leakage of fluid,
and post warning signs at necessary places. For details, see the applicable operating caution
on P.2 and P.4.
WARNING
• If using the pump with a flammable fluid or in a flammable environment, read the applicable
operating caution on P.3.
NOTE:
Arranging outside exhaust
• Remove the silencer.
• Connect a hose with a ground wire to the pump's
exhaust port, and attach the silencer to the tip of
the hose. Use a hose of the same diameter as the
exhaust port. (If the hose is longer than 5 meters,
consult your dealer or our regional office.)
• Have a pit, a protection box, etc. at the end of the hose.
WARNING
• Be sure to have a pit, a protection box, etc. at the end of the hose in preparation for the flow
of fluid in case of damage to a diaphragm. For details, see the applicable operating caution
on P.2.
• Pump exhaust should be directed to a safe place, away from people, animals and food.
NOTE:
Solenoid Operation
When air line operation is to be controlled by a solenoid valve, a three way type is recommended.
A three-way solenoid valve allows any trapped air to bleed off, in turn improving pump performance.
Fig.3.2