PET Food Processing - December 2020 - 36

EQUIPMENT

assist in the hopper to transfer product material to either
a double screw or hub vane delivery system feeding the
desired forming and portioning attachment.
" Another option in vacuum extrusion portion dividers and stuffers is the Total Vacuum System, which uses
a vacuum pump to suck the product material from a
feed hopper into a closed top hopper through an adjustable inlet valve that increases the surface area of the material being pumped in order to remove entrained air, "
Zeak added. " Product material is then transferred into
the double screw using a duo drive infeed scroll spiral
and vacuum suction assist. The double screw, available
in various profile configurations, moves the product to
the desired forming and portioning attachment. "
Ampco Pumps Company manufactures a variety of
pumps used in the pet food processing industry.
" We make two types of pumps: centrifugal pumps,
which are used for low viscosity fluids such as water,
milk, or anything less than 1,000 centipoises, " Garner
said. " Anything over that, we make a positive displacement pump, and we have several different varieties. "
Positive displacement pumps are primarily used in
the pet food industry. Pet food and treat processors may
also use centrifugal pumps for their cleaning regime.
" We make positive rotary pumps and also twin-screw
pumps - those handle the heavy viscous material, "
Garner explained. " The twin screws will handle solids
without damaging them better than a rotary pump. The
downside of a twin screw is that it's a little more expensive. If you don't need a twin screw, a positive rotary is
the pump that you would select. "
The systems Mepaco focuses on primarily utilize positive displacement style pumps.
" They are a key feature of our pumping systems, "
Hoffmann said. " What we provide is a Pump Feeder that
provides additional surge and while ensuring the pump
remains primed at all times. Our Pump Feeders allow us
to accept a full combo or batch of product that can then
be delivered to the next stage in the process. We might
also be capturing product from a cook line or mix line
and delivering to an extruder, in-line grinder, filler or
something of that nature.
" Mepaco manufactures complete turnkey systems that
utilize screw and belt conveyors for delivering product, "
Pictured from top to bottom is a centrifugal pump designed to
offer gentle product handling capable of viscosities up to 1200
centipoise; a rotary lobe positive displacement pump offering a
front-loading seal design; a centrifugal, self-priming, liquid ring
pump ideally suited for CIP return applications and for handling
products with entrained air; and a sanitary twin screw pump designed for the gentle handling of soft solids and viscous products.
Ampco Pumps

36

PET FOOD PROCESSING | December 2020 | www.petfoodprocessing.net



PET Food Processing - December 2020

Table of Contents for the Digital Edition of PET Food Processing - December 2020

PET Food Processing - December 2020 - 1
PET Food Processing - December 2020 - 1
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http://digital.petfoodprocessing.net/sosland/pfp/2020_12_01
http://digital.petfoodprocessing.net/sosland/pfp/2020_10_01
http://digital.petfoodprocessing.net/sosland/pfp/2020_09_01
http://digital.petfoodprocessing.net/sosland/pfp/2020_06_01
http://digital.petfoodprocessing.net/sosland/pfp/2020_03_01
http://digital.petfoodprocessing.net/sosland/pfp/2019_12_01
http://digital.petfoodprocessing.net/sosland/pfp/2019_10_01
http://digital.petfoodprocessing.net/sosland/pfp/2019_09_01
http://digital.petfoodprocessing.net/sosland/pfp/2019_06_01
http://digital.petfoodprocessing.net/sosland/pfp/2019_03_01
http://digital.petfoodprocessing.net/sosland/pfp/2018_12_01
http://digital.petfoodprocessing.net/sosland/pfp/2018_09_01
http://digital.petfoodprocessing.net/sosland/pfp/2018_06_01
http://digital.petfoodprocessing.net/sosland/pfp/2018_03_01
https://www.nxtbookmedia.com