 Chemical
Gear Pumps
G
Series
The G Series chemical pump is the first internal gear pump designed
for chemical process applications, in which gears of fine ceramics
(SiC and Zirconia) are used. Without detracting from any
of the advantages of conventional internal gear pumps abrasion
resistance, chemical resistance, low viscocity and sealing characteristics
have been greatly improved. In addition to the gland packing/mechanical
seal type (Model GX), magnetic drive sealless type (Model GM)
are available as standard products for an expanded range of uses.
Silicon
Carbide/Ceramic Gears offer
a hard material for the gears that resists wear in erosive slurry
applications extending pump service life. Reports from users
indicate service life two to three times longer than hardened
metal gear designs.
Silicon carbide/ceramic has a low co-efficient of friction. This
reduces the fluid film thickness requirements of the gear teeth
and prevents jamming and seizing typical of metal gears when used
on low viscosity fluids. (Water has a viscosity of .8cP.
Viking pumps are not recommended for use on water. Our pumps
not only can operate on water but also on fluids with viscosities
down to .5cP.)
Silicon carbide and ceramic are inert materials. Any gear
wear will not contaminate processes making the G Series a great
pump for pharmaceutical, magnetic tape slurry and paint/coating
applications.
Three Bearing Support
System - Two bearings
are strategically located on each side of the pinion gear on the
drive shaft to prevent any shaft/gear misalignment. A third
bearing directly supports the circumference of the driven gear
to reduce friction levels. By placing a bearing around the
driven gear pressure loads on the gears are balanced further reducing
fluid film requirements. Our three bearing system keeps
the gears properly positioned and gear loading balanced extending
service life.
Low
Pulsation - G
Series rotary action of the gears offers a fraction of the pulsation
typical of reciprocating diaphragm or plunger metering pumps.
Lower pulsation protects the system, allows for the use of more
accurate flow monitoring, and reduces installation costs by eliminating
the need for a pulsation dampener. |
Chemical Gear Pumps
|
