Quincy Compressor 50093-103 - Manual (Page 42)

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! WARNING !
Under no circumstances should a vacuum pump
be installed in an area that may be exposed to
toxic, volatile or corrosive atmosphere, nor
should toxic, volatile or corrosive agents be
stored near the vacuum pump.
Piping Connections
The vacuum distribution and piping system, including the
vacuum pump and all related components, must be
designed in accordance with generally accepted
engineering practices. Improperly designed distribution
systems can cause damage to the vacuum pump. Exhaust
piping should be installed in such a manner as to not
create additional back pressure on the vacuum pump.
Also, the exhaust piping should be installed with a drip leg
to prevent condensate from falling back into the fluid
reservoir. (See figure below)
Piping Fit-up
Care must be taken to avoid assembling the piping in a
strain with the vacuum pump. Piping should line up
without having to be sprung or twisted into position.
Adequate expansion loops or bends should be installed to
prevent undue stress at the vacuum pump resulting from
the changes between hot and cold conditions. Pipe
supports should be mounted independently of the
vacuum pump and anchored, as necessary, to limit
vibration and prevent expansion strains. In no case
should the piping be of smaller size than the connection
on the vacuum pump unit.
Pressure Relief Valves
! DANGER !
Relief valves are to protect system integrity in
accordance with ANSI/ASME B19 safety
standards. Failure to provide properly sized
relief valves will result in death or serious
injury.
Recommended Exhaust Piping