Alemite 8202 Handbuch für Betrieb, Installation, Wartung und Reparatur - Seite 9

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Temperature Limitations

Maximum temperature limitations are based on
mechanical stress only. Certain chemicals will reduce
the maximum safe operating temperature of A.O.D.
pumps. Consult your dealer or Chemical Resistance
Guide for compatibility and temperature limits.
Polypropylene: 0°C (32°F) to 79°C (175°F)
Kynar: -12°C (10°F) to 107°C (225°F)
Do NOT exceed the maximum temperature limits of
the elastomer type (diaphragms, balls, seats) that are
used in the pump.
Temperature Limits of Various Elastomer Types:
Neoprene: -18˚C (0˚F) to 93˚C (200˚F)
Buna-N: -12˚C (10˚F) to 82˚C (180˚F)
Nordel: -51˚C (-60˚F) to 138˚C (280˚F)
Viton®: -40˚C (-40˚F) to 176˚C (350˚F)
Teflon®: 4˚C (40˚F) to 105˚C (220˚F)
Polyurethane: -12˚C (10˚F) to 77˚C (170˚F)
XL TPE: -29˚C (-20˚F) to 149˚C (300˚F)
FDA Hytrel®: -29˚C (-20˚F) to 104˚C (220˚F)
Sound Level Ratings
1/2" Plastic pumps (Model 8202) have a decibel read-
ing of 78 dB(A) when equipped with a factory
installed air exhaust muffler.
The decibel readings are obtained with a Pacer
Industries model SL-120, sound level indicator "A"
scale. Readings are made at a distance of 1 meter
from the pump and at a height of 1.6 meters above
the floor. It is assumed that the pumps will be
installed at floor level.
Moving Parts Hazard
The diaphragm plates (sometimes referred to as
piston plates) located inside the pump on either side
of the main shaft move when air pressure is supplied
to the pump. Therefore, never attempt to operate the
pump with the liquid chambers removed. Moving
parts inside the pump can pinch or seriously injure
fingers or other body parts.

Fire or Explosion Hazard

Static electricity can be created by the flow of fluid
through the pump or by the reciprocating action of
A.O.D. pumps. If the pump is not properly grounded,
sparking may occur and the system may become
hazardous. Sparks can ignite fumes or vapor and
cause an explosion.
If you experience static sparking or even a slight shock
while using the pump, do not continue to operate the
pump until the pump is properly grounded.
Proper Grounding
To ground metallic pumps, connect a ground wire
to any accessible point of attachment such as a
connecting bolt or the mounting base.
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