YK15-0009-DI-002-04
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3.4 Outlet port Piping
Use the flange for connection between the Pump Outlet and the piping.
It is recommended to provide an oil mist trap to reduce oil consumption and to trap oil mist.
MODEL Flange at the pipe
VD30C
VF40
JIS B 2290:1998
Vacuum technology-Flange dimensions;
Attachment book (Reference)
Flange dimensions for maintenance
VD40C
VD60C
VD90C
DANGER
①
Use of the toxic, combustible or combustion susceptible gas other
than inactive gas is not allowed as there is a risk of leakage of the gas
from the Pump unit if it was exhausted by the vacuum pump.
② Use of the toxic, combustible or combustion susceptib
substance other than inactive gas is not allowed as there is a risk of
causing fire or explosion inside the Pump
unit if it was exhausted by
the vacuum pump.
③
It is not allowed to use any corrosive gas other than inactive gas as it
might cause
corrosion and/or give damage on pump parts when
discharged through vacuum pump.
④ Be sure to use pipes made of metal (electricity-conducting material).
Ensure also to take a grounding
⑤ If to exhaust any combustible, combustion susceptible or
gas, be sure to use pipes made of high pressure withstanding and
corrosion resistant metal. Ensure also to take a grounding.
⑥
In the case of the process flowing combustible gas/susceptibility of
substances to burn gas, you are requested to intr
gas.
Flow the diluent gas from the intake side so that the gas concentration to
be exhausted becomes lower than the explosion limit.
WARNING
If the pipe connected to the outlet had a small diameter or attached
foreign substance inside, it might raise the pressure inside the pipe and
impair the Pump operation. A caution shall be required.
There is a risk that the pressure inside the Vacuum pump
cause break or oil leak of the casing or Oil level gauge resulting in
overload of the motor.
CAUTION
Pay attention not to give damage to the Flange sheet face, Gasket slot or
gasket itself.
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