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1. Product Outline
1.1 Purpose of Use and Prohibitions
This product is a dry vacuum pump which employs reciprocating motion of a rubber diaphragm
for vacuum discharge.
PTFE is a highly corrosion-resistant plastic and is used in components which come in contact
with gas.
Observe the following prohibitions to ensure normal operation of the pump.
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Prohibitions
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(1) This pump employs only vacuum operation, and must not be
pressurized.
(2) Do not re-sell, repair, or modify this pump without the approval of the
manufacturer.
(3) This pump is designed for general corrosion resistance, however it
is not resistant to molten alkali metals such as molten sodium, to
fluorine at high temperatures, and to some oxides of fluorine.
(4) Corrosion-resistant plastic is used in the external covering of the
DTC-22 however it is not resistant to all chemicals.
Ensure that the following chemicals do not come in contact with the
pump. Any chemical, including the following, which comes into
contact with the pump should be wiped off immediately.
• Acetone • Ethyl ether • Ethyl acetate • Animal fats
(5) Ensure that the gas entering the pump does not contain rubbish,
dust, or water (except steam).
(6) Do not operate the pump for long periods at near-atmospheric
pressure.
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Warning
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Note
