|
* Our remanufactured
vacuum pumps carry a full one (1) year warranty, the same as a
new pump. Each pump is meticulously disassembled and inspected
for signs of previous problems or excessive wear. They are then
thoroughly cleaned in a “hot tank” with a proprietary solution
prior to reassembly. Pumps are assembled by factory trained
technicians using the specific manufacturers rebuild kits, which
includes new vanes, springs, seals and gaskets. Other “normal
wear” items such as drive belts, rubber floor pads, etc. are
also replaced with new parts. During assembly the manufacturers
specified clearances are checked and set using the appropriate
assembly fixtures (where applicable) to guarantee correct
assembly and to ensure trouble-free, efficient operation and
long service life.
WHY USE A BELT DRIVE PUMP
INSTEAD OF DIRECT DRIVE?
Although
SVP offers both belt drive and direct drive vacuum pumps, we are
strong proponents of Welch Belt Drive Vacuum Pumps for several
reasons. Belt drive pumps operate at a lower RPM compared to
direct drive pumps - generally 400-600 RPM vs. 1600-1800 RPM. A
lower RPM provides longer service life, cooler operation, less
oil vapor backstreaming and a better ultimate vacuum. As a
general rule, belt drive pumps have a larger oil capacity than a
direct drive pump with the same free air displacement. This also
helps cooling and provides a higher tolerance for water vapor,
which is by far the main gas load when processing luminous
tubing. Belt drive pumps may also be helpful in eliminating
bombarder flashback problems. The pump module and drive motor
can be removed from the metal pump base and mounted on a
non-conducting base thereby eliminating the ground path between
the pump module and grounded drive motor. This is not possible
with direct drive pumps as the drive motor is an integral part
of the pump module.
WHY WELCH BELT DRIVE
VACUUM PUMPS?
The quality
and reputation of Welch belt drive vacuum pumps is second to
none. Their belt drive series of pumps are the vacuum industry’s
most respected pumps. For decades they have been the backbone of
high and ultra high vacuum systems in some of the most demanding
applications for good reason: There is not a better belt drive
vacuum pump made. They are true workhorses by any standard.
|
