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Tuthill Process Pumps

Products Marketing ReportReport # 3 (Rev. 04/09/06)

MEAT PACKING MARKET

Background and Product Overview

Tuthill manufactures a wide range of

positive displacement pumps that address

many of the challenging applications in themeat processing industry. Tuthill offers

positive displacement pumps in thecircumferential piston, internal gear andexternal gear designs, ranging in capacity

from .5 GPH to 550 GPM and available in

iron, stainless steel, and other materials.

Tuthill Pump products have established areputation for reliability and durability in the

meat processing industry.

The Tuthill HD Series is a circumferential

piston pump capable of running dry without

damage, handling a wide range of viscositiesand slurries, and is a low-shear design. Thisdesign incorporates the use of externally-

mounted, synchronized timing gears

operating close clearance impellers withexternal shaft-bearing support. It is available

in ductile iron and stainless steel

construction as standard, with othermaterials available on special order.

The GlobalGear internal gear design pump

offers a heavy-duty modular design capableof back pullout access to the fluid chamber

without disturbing the pipe. The modular

design features also minimize maintenance

costs and inventory requirements comparedto other internal gear pumps. GlobalGear

pumps are available in cast iron, stainless

steel, and other materials upon request.

Meat Processing Applications

For years, Tuthill Pump Group products

have provided reliable service for difficult

meat packing applications. Theseapplications do not typically represent

standard positive displacement applications,as they contain significant solid contentwith intermittent flow and potentially

abrasive characteristics.

Tuthill Pump products are installed intypical meat packing plants:

Pork Processing Beef Processing

Poultry Processing

Each type of plant using Tuthill Pumps mayconsist of a slaughter, processing and

rendering application.

Slaughtering Applications

Slaughtering applications consist of productat body temperature:

Leaf lard

Caul fat Belly fat

Intestines

Blood Lungs

Gut

Mucosa


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A typical slaughtering application uses a

Tuthill HD Series product with a hopper

inlet port. As the animal carcass travels from

the slaughter floor, fats and organs arepulled from the cavity and dropped into a

trough with a hopper.

The Tuthill HD pump is ideal for this

application for the following reasons:

The pump can run dry withoutdamage with intermittent flow of

solid product.

The pump impeller sharp leadingedge is capable of shearing thesesolids to allow entry into the

pumping cavity, eliminating the need

for a grinder on the suction side ofthe pump.

The Model 125H pump is availablewith a removable faceplate for daily

cleaning, if necessary, and has asuction port design for easy

mounting of a hopper.

High torque-strength shafts providethe strength required to shear productas it enters the pump fluid chamber.

Slow operating speeds from 30 RPMto 150 RPM provide for adequate

fluid chamber filling and extendedwear life on abrasive applications

such as blood.

If a grinder is required for the pumpsuction port for applications such ascondemned birds, the output of the

grinder should be sized so as not to

starve the suction port of the pump.

Note: Shear-pin couplings arerecommended for these applications in caseof metal products falling into the hopper,

e.g. cutting knife. A quick replacement of a

shear pin minimizes downtime in these

applications.

Successful slaughtering applications are

found in pork, beef, poultry and fish plants.

Typical HD pumps used for these

applications include Models 125H, 120A,330 and 600 all with significant suction

port sizes to prevent bridging of producton the suction side of the pump.

Rendering Applications

A typical product pumped by a Tuthill pump

from the slaughtering floor is transferred to

a rendering application:

Black gut (hog entrails and stomachs) Hide fleshings Catch basin skimmings

Viscera, bone, and packing house

waste Rendered fat and fines

Poultry offal

Condemned birds

Skin Hot lard

Tallow

Tuthill HD pumps are recommended for

applications containing solids and abrasives,

while Tuthill GlobalGear pumps are

recommended for use with refined oils andliquid lards.

Tuthill GlobalGear internal gear pumps are

the first choice for reliable, low-maintenance

pumping of refined oils and liquid lards.

Generally, cast iron construction is used

with carbon bushings.


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Tuthill GlobalGear pumpsare recommended for rendered clarified fats

for the following reasons:

Overall industrial heavy-duty

construction that provides long lifein demanding environments.

No-maintenance, sealed-for-life thrust

bearings vs. 500-hour lubricationschedule for competitive design.

High-strength ductile iron rotors and

idlers are furnished as standard to

withstand potential cold start orupset conditions vs. expensive price-

premium, steel-fitted optional

construction for competitive designs.

Patented lubrication feature to providepositive lubrication to the idler

bushing, extending bushing life.

Standard shaft sizes used to makereadily available replacement

bearings, packing, and seals from

local sources, vs. proprietary shaftsizes in competitive designs.

Rendering applications pump products from

a meat processing plant to be transported toother markets turkey offal is commonly

transported to pet food processors. Tall oil

may be transported to cosmetics or inkprocedures. Other rendered products such as

blood and fish waste are transported to

fertilizer producing plants. Positive

displacement pumps are required for loadingand unloading transport vehicles, and are

usually required for further processing of

products in the different markets.

Trim/Processing Applications

Trimming and processing floors typically

work with chilled meats or poultry. At

refrigerated temperatures, beef fat cannot bepumped with circumferential piston pumps.

Pork fats can easily be pumped with the

Tuthill SD pump, provided that there is a

positive screw feed of the product into the

pump port, and steam-traced discharge linesto enhance the flow of the solid product to

the rendering areas.

Tuthill SD pumps are recommended for

edible applications for the following

reasons:

316 stainless steel construction withremovable faceplate for accessibilityfor cleaning.

Sharp leading edge of the single-lobeimpeller provides strength to shearsolids.

High-torque strength shafts preventtwisting due to low drive speeds and

solid content.

PTFE packing is recommended forsolid pumping applications.

Hot clearance fluid chambers arerecommended for high-temperature

cleaning applications.

Poultry sausage applications require the

ability for a pump to handle trimmed

carcasses to a bone-meat separator.

Tuthill HD pumps are recommended for this

application for the following reasons:

Model 330 and 600 pumps provide a

large suction port to prevent bridgingof product in the suction area.

316 stainless steel construction isavailable.

Sharp leading edge of the single-lobeimpeller provides strength to shear

solids.

High-torque strength shafts prevent

twisting due to low drive speeds andsolid content.


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PTFE packing is recommended for

solid pumping applications.

Hot clearance fluid chambers are

recommended for high-temperaturecleaning applications.

Wastewater Treatment

Applications

HD pumps are also very well suited to meat

processing wastewater treatmentapplications. Wastewater treatment

processes sometimes involve screening and

recovery of offal for rendering, and

dissolved air flotation systems producewaste sludge matter. The HD is well suited

to both applications for the following

reasons:

Tolerance for run-dry withintermittent flows.

Ability to pump large solids,including hard solids such as bonematter.

Ability to tolerate a wide range ofviscosities from water-like to thick.

Tolerance for pumping frothy liquidstreams without vapor locking.

Competitive Comparison of Pump

Designs

The Tuthill HD positive displacementcircumferential piston pump design has

replaced progressing cavity pumps due to

the ability to run dry without damage

(intermittent flow to the pump), shear solidsand organs with a sharp leading impeller,

easy accessibility to the fluid chamber, and a

smaller mounting footprint.

The Tuthill HD positive displacement

circumferential piston pump design has

rotary lobe pump designs for the ability to

shear large solids and organs with the sharp

leading edge on the impeller and high-

torque shaft strength, sometimes eliminating

the requirement for a grinder on the suctionside of the pump.

Chemical Treatment Applications

Within a meat processing plant there are anumber of chemical treatment applications.

Tuthill TechnaFlo pumps are applied for a

range of chemical dispensing services,

including boiler feed water treatment,cooling tower water treatment, and

wastewater treatment. Tuthill Technaflopumps are ideal for precise low-flow pumpapplications for the following reasons:

Constant pulse-free delivery,relatively independent ofdownstream pressure.

Very low-maintenance design withno check-valves, diaphragms, or

hydraulic systems.

Magnetic couplings for leak-freepumping.

Exceptionally compact. Easily adapted to automatic control

systems with available variablefrequency drives and other

accessories.

Positive displacement pumps play a very

important role in todays meat processing

industry, and the Tuthill Pump Group has a

full range of product offerings to address the

many pumping challenges found in the meat

processing industry. Tuthill Pump has been

a manufacturer of positive displacement

pumps for 75 years, earning a reputation as a

supplier for reliable and durable pumps for

the most demanding industries.


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