V1.4
4 of 22 04/01/2009
WARNING!
Failure to follow these instructions could result in serious bodily injury or death.
These pumps should
not
be used for handling plain water, corrosive or abrasive
liquids or liquids not possessing adequate lubricity.
Do not attempt to work on any Tuthill pump installation before completing the
steps below. Disconnect the drive so that it cannot be started while work is
being performed.
Review the Material Safety Data Sheet (MSDS) applicable to the liquid being
pumped to determine its characteristics and the precautions necessary to ensure
safe handling.
Vent all pressure within the pump through the suction or discharge lines.
All Tuthill pumps contain residual 200 SSU lube oil from the factory production test.
Determine if this is compatible with the fluid you are pumping. If the fluid is
incompatible, consult the factory.
Most Tuthill C Series pumps are required to develop 25" mercury vacuum at 0 psi on
factory test. While these pumps will develop as high as 27" of vacuum, it is a sound
engineering practice to avoid extreme vacuum whenever possible. Select a pipe size to
reduce line friction loss to a minimum.
The pump should be located as close to the source of supply as conditions permit and if
possible, below the level of the liquid in the reservoir. When necessary to locate the
pump in a pit, provisions should be made to safeguard against flooding. Care must be
taken to properly support the suction and discharge piping so that no strain is put on the
pump due to either weight or expansion. Piping strain can result in misalignment, hot
bearings, worn couplings, and vibration. It is important that the piping used be clean and
free of chips and scales.
Proper Installation
Unsatisfactory pump installations are usually characterized by poor suction conditions for
the specific liquid being handled. Suction conditions should be minimized to prevent
vaporization of the liquid. If vacuum conditions force the liquid to vaporize, cavitation will
occur, resulting in loss of capacity, premature wear and noisy operation.
