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KINNEY® SDV™ SERIES MANUAL 1861-1
© 2008, Tuthill Corporation
INTRODUCTION
CONGRATULATIONS on your purchase of a new KINNEY® SDV™ Dry Vacuum Pump from Tuthill Vacuum & Blower Systems.
Please examine the pump for shipping damage, and if any damage is found, report it immediately to the carrier. If the pump is to
be installed at a later date make sure it is stored in a clean, dry location and rotated regularly. Make sure covers are kept on all
openings. If pump is stored outdoors be sure to protect it from weather and corrosion.
KINNEY SDV vacuum pumps are built to exacting standards and if properly installed and maintained will provide many years of
reliable service. We urge you to take time to read and follow every step of these instructions when installing and maintaining your
pump. We have tried to make these instructions as straightforward as possible. We realize getting any new piece of equipment up
and running in as little time as possible is imperative to production.
WARNING: Serious injury can result from operating or repairing this machine without first reading the service manual and
taking adequate safety precautions.
IMPORTANT: Record the pump model and serial numbers in the OPERATING DATA form on the inside of the back cover of this
manual. You will save time and expense by including this reference identification on any replacement part orders, or if you require
service or application assistance.
This instruction manual describes instructions and precautions to be observed in the handling and maintenance of Tuthill Vacuum
& Blower Systems Kinney
®
SDV Dry Vacuum Pump. It is strongly recommended that those who operate or maintain the pump read
this manual carefully prior to pump operation, to ensure longevity of pump life.
PRINCIPAL OF OPERATION
The SDV Dry Screw Vacuum Pump is a single stage, dry running, non-contact, variable pitch screw type vacuum pump.
The design principle of the SDV is simple. Two parallel variable pitch screws, having a highly sophisticated surface profile consisting
of an Archimedean and Quimby curve and an arc, rotate in opposite directions. Drive shaft rotation is CW when viewed from the
motor end (drive end) of the pump. Helical cut timing gears position these screws relative to each other.
The pumped gas is compressed into the discharged port by the rotation of the screws. A specific amount of clearance for each
pump size is maintained between the two screws and between screws and housing in order to avoid any metal to metal contact.
The power of the motor is transmitted to the main shaft through a coupling or belt pulley.
Because the SDV has a variable pitch screw design, the compression process is more efficient and the pump runs cooler.
For simplicity and space saving, the models SDV-120 through SDV-800 are provided as standard with flanged adaptors for mounting
a C-flange motor directly to the Vacuum Pump, eliminating the need for a separate base frame mounted assembly and coupling
guard for the vacuum pumps.
The power of the motor is transmitted to the drive screw shaft through a V-Pulley or a coupling, and further to the driven Screw shaft
through the timing gears.
CONSTRUCTION
TIMING GEAR
The timing gear is an important part of the screw vacuum pump. The tooth surface is heat cured, and polished with a special high
precision tooth-polishing machine for reduced noise during the pump operation.
BEARINGS
The bearings on the fixed side of the SDV pump (discharge end) are angular contact ball bearings and on the expansion side (inlet
end) are roller bearings of heavy load capacity. These bearings have been selected to withstand high speed and heavy load service
and to assure the accurate clearances between gears and between screws.
Содержание KINNEY SDV SDV-120
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