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Dayton Product IntroductionIntroducing a wide selection of NEW Dayton pumps

Rotary Gear Pumps

8SS1877 ©2006 Dayton Electric Manufacturing Co. M-HS51

Dayton products are available at Grainger.

There are many ways to get the Dayton products you

need — phone, fax, online at grainger.com/dayton or

stop by your local Grainger® branch.

*In-stock orders placed by 5 p.m. local time M-F will ship same day.Your Grainger branch has many items in stock for immediate pickup. Call for availability.

Tough, long-running pumps that never let you down Order Dayton Today!

Dayton Rotary Gear Pumps: Reliable Products Geared for Any Situation. No two pumping tasks are exactly alike. When you consider discharge, lift, gallons-per-minute,

viscosity and all the other variables involved, it becomes clear that every situation demands a unique

solution. That’s why Dayton has developed the widest range of rotary gear pumps in the industry,

each with specifications selected to maximize performance and efficiency in your specific application.

Consider our new bronze and cast-iron carbonator pumps, which are self-priming and feature a

pressure relief valve for added safety in critical settings. Or our stainless steel pedestal pumps with

Ryton spur gears that elminate metal-to-metal contact for quiet, near pulseless operation.

With so many different features, what do all of our pumps have in common? They are made of

stainless steel, cast iron and bronze. And they offer multiple mounting configurations and are

available in horsepower ranges appropriate for nearly any application. For a complete selection

of Dayton pumps, see the Grainger catalog or visit grainger.com/dayton

Get Pumped About Everything We OfferPumps aren’t the only hardworking products we have. Be sure to check out our broad selection of

HVAC products and motors, too. Just like our pumps, they are constructed of quality materials and

engineered to give you optimal performance in the toughest commercial and industrial settings.

When You Need It Now,Dayton Delivers.When you need it fast, Dayton delivers because it’s available at Grainger. Order today, it ships today.*

And ordering couldn’t be more convenient: you can call or fax, stop by your local Grainger branch or

visit grainger.com/dayton.

Contents3 Rotary Gear Selection Guide

4-5 How to Select Rotary Gear Pumps

5 Replacement Seal, Options

and Accessories

6 Bronze and Cast-Iron Carbonator

and Plate Mount Rotary Gear Pumps

(Close-Coupled)

7 Heavy-Duty 316 Stainless Steel Pedestal

and Close-Coupled Gear Pumps

8 Heavy-Duty Cast-Iron and Bronze

Gear Pumps (Close-Coupled)

9 Heavy-Duty Cast-Iron and Bronze

Pedestal Gear Pumps

10 Light-Duty Pedestal Rotary

Gear Pumps

11 NSF Filter and Rendering Oil Pumps

(Fat Fryer, Hot Oil Cooking Filter, and

Waste Oil)

Call or stop by your local Grainger branch, or go online to grainger.com/dayton

3Every job, every day: Dayton pumps never stop working for you.For a complete selection of Dayton products, see the Grainger catalog or visit grainger.com/dayton.

Rotary Gear Pump Selection GuideDayton self-priming, positive displacement, external gear pumps provide a nearly pulseless flow.

They are ideal for pumping viscous fluids in a wide range of industrial, marine, agricultural, and

commercial applications; capable of flow rates up to 24.8 GPM, pressures up to 125 psi, speeds

to 1725 RPM, fluid temperatures up to 280°F, and viscosities up to 100,000 SSU. They are not

suitable for pumping fluids with suspended solids or abrasive materials.

These efficient pumps are recommended for nonabrasive, nonflammable liquids compatible with

pump component materials and can be used for liquid circulation, lubrication, pressure boosting,

filtering, medium pressure spraying, sump draining, drum and vat filling, and general fluid transfer

applications. They are reversible and self-priming. Models with lubricated gears are capable of a

17-ft. vertical lift, depending on pump size, speed, and fluid.

FlexibilityBoth close-coupled and pedestal-mounted pumps are offered in three materials of construction:

316 Stainless Steel—used for pumping clean, hard-to-transfer, high temperature and/or highly

corrosive liquids respectively. Cast Iron and Bronze—used for transferring a broad range of non-

abrasive fluids, including oil and water-based liquids. Gear types include spur (straight) gears that

provide excellent suction lift for water or light oils, and a nonclogging design that easily handles

higher viscosity fluids.

DurabilityDayton pumps are simple in construction, with a minimum number of moving parts for less main-

tenance and longer life. They are offered in heavy-duty, intermittent, or light-duty models with many

different design features including mechanical, lip, or packing seals; seal chambers with flush ports;

oversized carbon graphite bushings; and integral ball bearings. Most Dayton gear pumps include

a pressure relief valve that acts as a safety device, preventing pump and motor damage that can

occur when the discharge line is closed.

Two Mounting Configurations Close-coupled pumps are directly coupled to electric motors and easily installed in areas with

limited space. Pedestal-mounted pumps can be driven by electric motors, gasoline/diesel engines,

or pneumatic motors using pulleys/belts, gear boxes, or other coupling devices. Both types of

pumps are ideal for reduced speed applications. Examples are shown on the right. Safety shields

have been removed for illustration purposes only.

Pedestal Gear Pump Long Coupled with Motor

Pedestal Gear Pump Driven by Pulley, Belt and Motor

Pillow Block Shaft Assembly

RELIEFVALVE

GEAR PUMP

FLEXIBLE COUPLING

BALL BEARING MANDREL

SPACE BLOCKSHEIGHT WILL VARY

WITH PUMP SIZE

PULLEY

Typical Gear Pump Installation

FOOT VALVE

PUMP WITH RELIEF VALVERELIEF VALVE

DISCHARGE

QUICK DISCONNECT

VALVES

PRESSURE GAUGE COUPLING

VACUUM SWITCH

LINE STRAINER

SUCTION

BALL VALVE

ELECTRIC MOTOR

A

BCDEFGHIJ

K

100,000

10,000

1000

100

1030 50 70 90 110 130 150 170 190 210

Temperature ( °F)

Vis

co

sity

(S

SU

)

VISCOSITY VS. TEMPERATURE

A ........... #2 Fuel Oil

B............ #4 Fuel Oil

C............ Light Hydraulic Oil

D ........... SAE #10 Oil

E ............ SAE #20 Oil

F ............ SAE #30 Oil

G ........... SAE #40 Oil

H ........... SAE #50 Oil

I ............. SAE #60 Oil

J............. SAE #70 Oil

K............ #6 Fuel Oil

4

Dayton Pumps: The right product for any job. Order Dayton Today!

Every job, every day: Dayton pumps never stop working for you.For a complete selection of Dayton products, see the Grainger catalog or visit grainger.com/dayton.

Every job, every day: Dayton pumps never stop working for you.For a complete selection of Dayton products, see the Grainger catalog or visit grainger.com/dayton.

TABLE 1 — SPEED VS. VISCOSITY

VISCOSITY (SSU) SPEED (RPM)

50-500 1725

1200 1500

2000 1300

7000 1000

20,000 600

50,000 400

100,000 200

TABLE 2 — HP VS. VISCOSITY

PRESSURE(PSI)

VISCOSITY (SSU)

30 500 1000 5000 10,000 50,000 100,000

2 — 30 60 120 200 300 400

20 — 25 50 100 160 260 350

40 — 20 40 80 120 220 300

60 — 15 30 60 105 180 250

80 — 12 25 50 90 150 200

100 — 10 20 40 80 120 150

6NY91

How to Select Rotary Gear PumpsStep 1Determine total pump discharge pressure required. Add suction lift (in feet) to discharge elevation

(in feet); divide total by 2.31. To this figure, add the discharge pressure required, in psi. This sum is

the total pump pressure needed.

Step 2Select pump and motor HP combination that delivers the flow (in GPM) required at, or above, the

total pump pressure calculated in step 1.

Step 3Consider fluid viscosity. The viscosity/temperature of the liquid pumped will affect the pump speed

(RPM). Where the viscosity/temperature SSU (Saybolt Seconds Universal) is greater than 500 SSU:

• Pump speed (RPM) must be reduced to prevent cavitation. Use Table No. 1 as a guide.

• Suction/discharge lines must be increased by at least 1 (or better 2) pipe sizes over the size of

the pump ports.

• The motor’s horsepower must be increased over the power required to pump water under the

same pressure and flow. Use Table No. 2 to find the percentage increase in horsepower required

for various pressures and viscosities.

Note: An oil viscosity vs. temperature chart is included for reference.

Ports allow mechanical seal flush

Relief Valve

Recommended use of suction line strainer

AC adjustable frequency drive controller for flow

control on 3-phase pumps.(flow proportional to speed)


5In-stock orders placed by 5 p.m. local time M-F will ship same day.Your Grainger branch has many items in stock for immediate pickup. Call for availability. Dayton®

REPLACEMENT SEAL, OPTIONS AND ACCESSORIES

ACCESSORYSEE PAGE IN GRAINGER

CATALOG #397

Variable Frequency Drives 42

Shaft Couplings 289

Pressure Relief Valves 3552

Motor Control Box 3434

Close Coupled Rotary Gear Pumps 3565, 3568, 3569, 3570

Pedestal Rotary Gear Pumps 3567

Carbonator Mount Rotary Gear Pumps 3570

Stainless Steel Rotary Gear Pumps 3568

Heavy Duty Rotary Gear Pumps 3565, 3566, 3568

Chemical Compatibility Chart 3572

Pulleys 251

Belts 244

Pillow Block Bearings and Mandrels 154 and 260

4BA67

3HX74

Replacement Seal, Optionsand AccessoriesDayton offers many accessories to protect and maintain

gear pumps, including vacuum switches, adjustable

pressure relief valves, adjustable frequency drives for

motors, pulleys, motor couplers, and drive motors.

The list below also refers to accessories which may

be suitable for your application. Please also see

www.grainger.com/dayton for additional information.

Step 4Consider the specific gravity of the fluid to be pumped and how it will affect horsepower

requirements. If the specific gravity of the fluid is below 1.0 (specific gravity of water), consult the

pump’s performance table for a recommended motor horsepower. If the specific gravity of the

fluid is greater than 1.0, multiply the recommended horsepower in the pump’s performance table

by this figure. The result is the required motor horsepower.

Step 5Consider liquid compatibility with pump materials. Liquids being pumped must be compatible

with pump construction. See individual listings of pumps for the specific materials used in the

wet-end construction of the pump.

WARNING: Use only with nonflammable liquids compatible with pump

component materials and in nonflammable/nonexplosive atmospheres.

Close-Coupled Gear Pump with Motor and Relief Valve

6Every job, every day: Dayton pumps never stop working for you.

For a complete selection of Dayton products, see the Grainger catalog or visit grainger.com/dayton.


BRONZE PLATE MOUNT GEAR PUMPS WITH MOTOR

PORT SIZEFNPT (IN.)

NEMA MOTORFRAME W/BASE HP VOLTAGE STOCK NO.

1/4 NEMA 48 1/3 115 6PA21

3/8 NEMA 48 1/2 115/230 6PA22

BRONZE PLATE MOUNT GEAR PUMP HEADS (NO MOTOR)*

1/4 — — — 6PA19

3/8 — — — 6PA20

(*) Includes pump head, NEMA 48 and 56 frame motor mounting hardware, and instructions.

6PA21

6PA24

6PA19

CARBONATOR MOUNT GEAR PUMPS WITH MOTOR

PORT SIZEFNPT (IN.) HP

GPM OF OIL @ TOTAL PSI

VOLTAGEBRONZE

STOCK NO.CAST IRONSTOCK NO.FREE FLOW 100

1/4 1/3 2.2 1.3 115 6PA29 6PA31

3/8 1/2 4.4 3.0 115/230 6PA30 6PA32

CARBONATOR MOUNT GEAR PUMP HEADS (NO MOTOR)

1/4 1/3† 2.2 1.3 — 6PA24 6PA26

3/8 1/2‡ 4.4 3.0 — 6PA25 6PA27

(†) Order optional single phase motor separately: No. 5U257.(‡) Order optional single phase motor separately: No. 5U258.

Bronze and Cast-Iron Carbonator and Plate Mount Rotary Gear Pumps (Close-Coupled)Self-priming, positive displacement, external gear

pumps are ideal for a wide range of intermittent

and light-duty industrial, marine, agricultural,

and commercial applications, providing a nearly

pulseless flow. Close-coupled models are available

directly mounted to NEMA framed ODP single-

phase motors or as pump heads only for custom

installations. All models include a safety relief valve

and pressure relief valves. Motor driven models

are HP configured to handle up to 500 SSU at

100 psi. Single-phase motors are thermally

overload-protected.

Uses: For use with non-particulate and

non-abrasive fluids.

• Max. RPM: 1725, psi: 100

• Pumps can operate bi-directionally (reversible)

WARNING: Use only with nonflammable liquids compatible

with pump component materials and in nonflammable/

nonexplosive atmospheres.

Note: See Rotary Gear Pump Selection Guide on pages 3-5

for suggestions concerning installation, selection, options,

and accessories.

Plate Mount Bronze

(Light-Duty)Excellent for water-based fluids. Same performance

features as carbonator mount bronze pumps, but

without ceramic wet-end parts.

Carbonator Mount Cast-Iron

(Intermittent-Duty)Specifically designed for use with oil-based fluids.

Not to be used with water-based fluids. Pumps

include steel spur gears with steel shafts and

cast-iron shaft support and can be ported internally

or externally. Viton® mechanical seal with temp-

erature range of 32° to 280°F. Wet-end parts are

constructed from cast iron, steel, 304 stainless

steel, carbon, ceramic, and Viton.

Carbonator Mount Bronze

(Intermittent-Duty)Excellent for water-based fluids. Feature 303 stain-

less steel shafts, carbon graphite bushings, and

Buna N mechanical seals with temperature range

of -20° to 210°F. Pumps can be ported internally

or externally. Wet-end parts are constructed from

bronze, brass, 304 stainless steel, graphite, carbon,

and Buna N.



CLOSE-COUPLED PUMPS WITH 1725 RPM TEFC MOTOR

PORT SIZEFNPT (IN.) PHASE VOLTAGE AMPS

NEME MOTORFRAME W/BASE HP

SUCTIONLIFT (FT.)

GPM @ FREE FLOW

GPM @100 PSI STOCK NO.

3/8 1 115/230 11.2/5.6 56C 3/4 3 4.6 3.7 6PA13

3/8 3 230/460 2.6/1.3 56C 3/4 3 4.6 3.7 6PA14

1/2 1 115/230 18.4/9.2 56C 1 1/2 11 10.5 8.7 6PA15

1/2 3 230/460 4.8/2.4 56C 1 1/2 11 10.5 8.7 6PA16

1 1 230 14.7 182/184TC 3 17 24 20.5 6PA17

1 3 230/460 8.2/4.1 182/184TC 3 17 24 20.5 6PA18

CLOSE-COUPLED MOTOR MOUNT GEAR PUMP HEADS (NO MOTOR)

PORT SIZEFNPT (IN.)

PUMPRPM

SUCTION*LIFT (FT.)

NEMAMOTOR

FRAME REQ.STOCK

NO.

OPTIONAL SUGGESTED MOTOR

FREE FLOW 125 PSI

HP PHASE VOLTAGESTOCK

NO. HP PHASE VOLTAGESTOCK

NO.GPM HP GPM HP

3/8

900 1.2 2.4 1/6 1.1 1/3

56C 6NY97 3/4 1 115/230 1K084 3/4 3208-

230/4605N1151200 1.8 3.2 1/4 1.9 1/2

1725 3.0 4.6 1/3 3.3 3/4

1/2

900 4.5 5.5 1/4 3.1 3.4

56C 6NY98 1 1 115/230 6K045 1 3208-

230/4606MA121200 6.0 7.3 1/3 4.9 1

1725 11.0 10.5 1/2 8.1 1 1/2

1

900 7.0 12.6 1/2 8.1 2

56C 6NY99 1 1/2 1 115/230 1K082 1 1/2 3208-

230/4606MA101200 10.0 16.7 3/4 12.2 3

1725 17.0 24.0 1 19.5 3

PEDESTAL GEAR PUMP HEADS (NO MOTOR)

3/8

900 1.2 2.4 1/6 1.1 1/3

56C 6PA10 3/4 1 115/230 5K460 3/4 3208-

230/4603N6421200 1.8 3.2 1/4 1.9 1/2

1725 3.0 4.6 1/3 3.3 3/4

3/8

900 4.5 5.5 1/4 3.1 3/4

56C 6PA11 1 1 115/230 6K699 1 3 230/460 3N6431200 6.0 7.3 1/3 4.9 1

1725 11.0 10.5 1/2 8.1 1 1/2

3/8

900 7.0 12.6 1/2 8.1 2

56C 6PA12 1 1/2 1 115/230 6K305 1 1/2 3 230/460 3N6441200 10.0 16.7 3/4 12.2 3

1725 17.0 24.0 1 19.5 3

(*) With wetted gears.

6PA17

6PA10

Heavy-Duty 316 Stainless Steel Pedestal and Close-Coupled Gear Pumps Dayton self-priming, positive displacement, external

gear pumps provide nearly pulseless flow for a wide

range of industrial, marine, agricultural, and commercial

chemical-duty applications, where non-abrasive and

non-particulates fluids are pumped. Close-coupled

models are available directly mounted to NEMA

frame totally enclosed fan cooled (TEFC) motors in a

complete package that is easy to install. For custom

installations, pump heads and pedestals can be ordered

separately. Ryton® PPS (polyphenylene sulfide) spur

gears provide quiet operation and chemical compatibility

with no metal-to-metal contact. Pumps can operate in

a temperature range of 32° to 280°F. Quality features

include: 316 stainless steel shafts; carbon graphite

bushings; and wet-end parts constructed from 316

stainless steel, Ryton PPS, graphite, carbon, ceramic,

and Viton. Motor-driven models are HP configured to

handle up to 500 SSU at 125 psi. Single-phase motors

are thermally overload-protected; 3-phase motors are

not. Pedestal models have keyed drive shafts with dual

heavy-duty ball bearings.

• Max. RPM: 1725, psi: 125


• Viton® mechanical seals with flush chamber


for suggestions concerning installation, selection, options, and

accessories. Pumps are not available with pressure relief valves.

The valves must be ordered separately.

WARNING: Use only with nonflammable

liquids compatible with pump component

materials and in nonflammable/




Dayton Pumps: The right product for any job. Order Dayton Today!

BRONZE/CAST-IRON PUMPS WITH MOTORS AND RELIEF VALVES (10 WT. OIL @ 70°F AND 500 SSU)


NEMA MOTORFRAME W/BASE MOTOR HP

SUCTIONLIFE (FT.)*

FREE FLOWGPM

100 PSIGPM

BRONZESTOCK NO.

CAST IRONSTOCK NO.

1/4 1 115/230 11.2/5.6 56C 3/4 3.5 4.8 4.4 6NY37 6NY47

1/4 3 230/460 2.6/1.3 56C 3/4 3.5 4.8 4.4 6NY38 6NY48

3/8 1 115/230 13.2/6.6 56C 1 7.9 7.0 6.5 6NY39 6NY49

3/8 3 230/460 3.2/1.6 56C 1 7.9 7.0 6.5 6NY40 6NY50

1/2 1 115/230 18.4/9.2 56C 1 1/2 12.3 10.8 10.2 6NY41 6NY51

1/2 3 230/460 4.8/2.4 56C 1 1/2 12.3 10.8 10.2 6NY42 6NY52

3/4 1 115/230 21.2/10.6 143TC/145TC 2 15.2 20.6 19.8 6NY43 6NY53

3/4 3 230/460 6.0/3.0 143TC/145TC 2 15.2 20.6 19.8 6NY44 6NY54

1 1 230 14.7 182TC/184TC 3 19.5 24.8 23.9 6NY45 6NY55

1 3 230/460 8.2/4.1 182TC/184TC 3 19.5 24.8 23.9 6NY46 6NY56

(*) With wetted gears.

BRONZE/CAST-IRON PUMP HEADS ONLY WITH RELIEF VALVES

PORT SIZEFNPT (IN.)

NEMA MOTORFRAME REQ.

BRONZESTOCK NO.

CAST IRONSTOCK NO.

OPTIONAL SUGGESTED MOTOR

HP PHASE VOLTAGE STOCK NO. HP PHASE VOLTAGE STOCK NO.

1/4 56C 6NY27 6NY32 3/4 1 115/230 1K084 3/4 3 208-230/460 5N115

3/8 56C 6NY28 6NY33 1 1 115/230 6K045 1 3 208-230/460 6MA12

1/2 56C 6NY29 6NY34 1 1/2 1 115/230 1K082 1 1/2 3 208-230/460 6MA10

3/4 143/145TC 6NY30 6NY35 2 1 115/230 4K813 2 3 230/460 6YL99

1 182/184TC 6NY31 6NY36 3 1 115/230 4K815 3 3 208-230/460 1Z924

6NY37

6NY27

6NY32

Heavy-Duty Cast-Iron and Bronze Gear Pumps (Close-Coupled)Dayton self-priming, positive displacement, exter-

nal gear pumps provide a nearly pulseless flow.

Mounted directly to NEMA frame open dripproof

(ODP) motors using an easy-installation package, or

as pump heads only for custom installations. Include

safety relief valve that can be ported internally or

externally. Single-phase ODP motors are thermally

overload protected; 3-phase motors are not.

Uses: Handle a wide range of industrial, marine,

agricultural, and commercial applications, where

non-abrasive and non-particulate fluids are pumped.

• Max. RPM: 1725, psi: 125

• Mechanical seals with flush chamber

• Motor-driven models are HP configured

to handle up to 500 SSU at 125 psi


Note: Motor is not included with pump heads only. See

motor chart below for suggested “Motors for Close-Coupled

Gear Pump Heads.” Hazardous environments and special

applications may require alternate motor selections. See

Rotary Gear Pump Selection Guide on pages 3-5 for

suggestions concerning installation, selection, options,

and accessories.

Cast-IronSpecifically designed to be used with oil-based

fluids. Pumps include steel spur gears with

steel shafts and cast-iron shaft support. Viton®

mechanical seal has temperature range of 32° to

280°F. Wet-end parts are constructed from cast

iron, steel, 304 stainless steel, carbon, ceramic,

and Viton.

Note: Not to be used with water-based fluids.

BronzeRyton® PPS (Polyphenylene Sulfide) spur gears

provide quiet operation and chemical compatibility.

No metal-to-metal contact. Excellent for water-

based fluids. Pumps also have 304 stainless steel

shafts and carbon graphite bushings. Buna N

mechanical seal with temperature range of -20° to

210°F. Wet-end parts are constructed from bronze,

brass, Ryton PPS, 304 stainless steel, graphite,

carbon, ceramic, and Buna N.






BRONZE/CAST-IRON PUMP HEADS ONLY WITH RELIEF VALVES (10 WT. OIL @ 70°F AND 500 SSU)

PORT SIZEFNPT (IN.) PUMP RPM

SUCTION LIFT(FT.)

FREE FLOW† 125 PSI BRONZESTOCK NO.

CAST IRONSTOCK NO.GPM HP GPM HP

3/8

900 1.5 2.5 1/4 1.8 1/2

6NY57 6NY621200 2.2 3.3 1/3 2.6 3/4

1725 3.5 4.8 1/2 4.1 1

1/2

900 2.8 3.7 1/3 2.8 3/4

6NY58 6NY6231200 5.2 4.9 1/2 4 1

1725 7.9 7 3/4 6.1 1 1/2

3/4

900 5.1 5.6 1/3 4.5 3/4

6NY59 6NY641200 6.7 7.5 1/2 6.4 1

1725 12.3 10.8 3/4 9.7 1 1/2

1

900 6.6 10.8 3/4 9.4 1 1/2

6NY60 6NY651200 9.3 14.3 1 12.9 2

1725 15.2 20.6 1 1/2 19.2 2

1 1/4

900 8.1 12.6 3/4 11.1 2

6NY61 6NY661200 11.7 16.7 1 15.2 2

1725 19.5 24.8 1 1/2 23.3 3

(*) With wetted gears. (†) RPM and GPM are approximately proportional.

MOTOR SUGGESTIONS FOR USE WITH PUMP HEADS

DAYTONSTOCK NO. HP

NEMAFRAME

W/BASE RPM PHASE VOLTAGE

5K116 1/2 56 1725 1 115/230

3N641 1/2 56 1725 3 230/460

5K460 3/4 56 1725 1 115/230

3N642 3/4 56 1725 3208-

230/460

6K699 1 56H 1725 1 115/230

3N643 1 56 1725 3 230/460

6K305 1 1/2 56H 1725 1 115/230

3N644 1 1/2 56H 1725 3 230/460

1K064 2 56H 1725 1 115/230

5N304 2 145T 1740 3 230/460

5K675 3 184T 1735 1 115/230

5KJ99 3 182T 1765 3 230/460

6NY57

6NY62

Heavy-Duty Cast-Iron andBronze Pedestal Gear PumpsDayton self-priming, positive displacement,

external gear pumps operate bi-directionally

(reversible) and are ideal for a wide range of

industrial, marine, agricultural, and commercial

applications. They provide a nearly pulseless

flow, where non-abrasive and non-particulates

fluids are pumped.

Quality features include a keyed drive shaft

supported by heavy-duty dual ball bearings and

a safety relief valve that can be ported internally

or externally. Optional single-phase motors are

thermally overload-protected; 3-phase motors

are not. Motor options are listed in motor chart

below.

• Max. RPM: 1725, psi: 125

• Mechanical seals with flush chamber

• Motor-driven models can be long-coupled at

1725 RPM to handle up to 500 SSU or pulley

driven to handle a wide range of pump fluid

viscosities up to 100,000 SSU

Note: See Rotary Gear Pump Selection Guide on pages

3-5 for suggestions concerning installation, selection,

options, and accessories.

WARNING: Use only with nonflammable liquids

compatible with pump component materials and

in nonflammable/nonexplosive atmospheres.

BronzeExcellent for water-based fluids. Ryton® PPS

spur gears provide quiet operation and chemical

compatibility. No metal-to-metal contact. Pumps

have 303 stainless steel shafts and carbon

graphite bushings. Buna N mechanical seal has

temperature range of -20° to 210°F. Wet-end

parts are constructed from bronze, brass, Ryton

PPS, 304 stainless steel, graphite, carbon,

ceramic, and Buna-N.

Cast-IronSpecifically designed to be used with oil-based

fluids. Pumps include steel spur gears with

steel shafts and cast-iron shaft support. Viton®

mechanical seal has temperature range of 32°

to 280°F. Wet-end parts are constructed from

cast iron, steel, 304 stainless steel, carbon,

ceramic, and Viton.


Light-Duty Pedestal Rotary Gear Pumps




10 WT. OIL @ 70°F AND 500 SSU

PORT SIZEFNPT (IN.)

PUMPRPM

SUCTIONLIFT (FT.)

OPTIONAL 1-PHASE MOTORS OPTIONAL 3-PHASE MOTORS

STOCKNO. HP

NEMAFRAME

W/BASE VOLTAGESTOCK

NO. HP

NEMAFRAME

W/BASE VOLTAGE

FREE FLOW 100 PSI

GPM HP GPM HP

1/4

900 1.5 1.2 1/6 0.4 —

5K116 1/2 56 115/230 3N641 1/2 56 230/4601200 2.0 1.6 1/6 1.2 1/2

1725 2.5 2.2 1/6 1.9 1/3

1/4

900 1.5 2.5 1/4 2.1 1/2

5K460 3/4 56 115/230 3N642 3/4 56 208/230/4601200 2.2 3.3 1/3 2.9 3/4

1725 3.5 4.8 1/2 4.4 1

3/8

900 2.8 3.7 1/3 3.2 3.4

6K305 1 1/2 56H 115/230 3N644 1 1/2 56H 230/4601200 5.7 4.9 1/2 4.4 1

1725 7.9 7.0 3/4 6.5 1 1/2

1/2

900 5.1 5.6 1/3 5.0 3/4

6K305 1 1/2 56H 115/230 3N644 1 1/2 56H 230/4601200 6.7 7.5 1/2 6.9 1

1725 12.3 10.8 3/4 10.2 1 1/2

3/4

900 6.6 10.8 3.4 10.0 1

5K675 3 184T 115/230 5KJ99 3 182T 230/4601200 9.3 14.3 1 13.5 2

1725 15.2 20.6 1 1/2 19.8 2

1

900 8.1 12.6 1 11.7 2

5K675 3 184T 115/230 5KJ99 3 182T 230/4601200 11.7 16.7 1 15.8 2

1725 19.5 24.8 1 1/2 23.9 3

BRONZE PUMPS WITH PACKINGSEAL AND ZERK FITTINGS

PORT SIZEFNPT (IN.)

SHAFTDIA. (IN.)

SHAFTHT. (IN.)

STOCKNO.

1/4* 1/2 1 7/8 6NY67

1/4 1/2 2 23/64 6NY68

3/8 5/8 2 5/8 6NY69

1/2 5/8 2 5/8 6NY70

3/4 5/8 3 9/16 6NY71

1 5/8 3 9/16 6NY72

BRONZE PUMPS WITH PACKING SEALAND CARBON GRAPHITE BUSHINGS

1/4* 1/2 1 7/8 6NY73

1/4 1/2 2 23/64 6NY74

3/8 5/8 2 5/8 6NY75

1/2 5/8 2 5/8 6NY76

3/4 5/8 3 9/16 6NY77

1 5/8 3 9/16 6NY78

BRONZE PUMPS WITH PACKING SEAL,CARBON GRAPHITE BUSHINGS, ANDRELIEF VALVE

1/4 1/2 1 7/8 6NY79

1/4 1/2 2 23/64 6NY80

3/8 5/8 2 5/8 6NY81

1/2 5/8 2 5/8 6NY82

3/4 5/8 3 9/16 6NY83

1 5/8 3 9/16 6NY84

CAST-IRON PUMPS WITH VITON LIP SEAL

1/4 1/2 1 7/8 6NY85

1/4 1/2 2 23/64 6NY86

3/8 5/8 2 5/8 6NY87

1/2 5/8 2 5/8 6NY88

3/4 5/8 3 9/16 6NY89

1 5/8 3 9/16 6NY90

CAST-IRON PUMPS WITH PACKINGSEAL AND ZERK FITTINGS

1/4 1/2 1 7/8 6NY91

1/4 5/8 2 23/64 6NY92

3/8 5/8 2 5/8 6NY93

1/2 5/8 2 5/8 6NY94

3/4 5/8 3 9/16 6NY95

1 5/8 3 9/16 6NY96

(*) Pumps were originally 1/8" ports. They have been resizedto 1/4" but still perform at 1/8" pump flow rates.

Dayton positive displacement, external gear pumps

provide a nearly pulseless flow and are designed

specifically for reduced-speed operations.

Limited self-priming capability on packing seal

types. Pillow block shaft assembly is required, when

pulley driven. Motors are not included. Suggested

optional single-phase motors are thermally

overload-protected; 3-phase motors are not.

Uses: For use with non-particulate and non-

abrasive fluids in light-duty industrial, marine,

agricultural, and commercial applications.

• Max. RPM: 1725, psi: 100





Note: Not for pulley drive systems without the use of a pillow

block shaft assembly. See Rotary Gear Pump Selection

Guide on pages 3-5 for suggestions concerning installation,

selection, options, and accessories.

Cast-IronSpecifically designed for use with oil-based fluids.

Pumps include steel spur gears with steel shafts

and cast-iron shaft support. Viton® lip seal has

temperature range of 32° to 280°F. Wet-end parts

are constructed from cast iron, steel, and Viton.


BronzeExcellent for water-based fluids. Pumps have 303

stainless steel shafts. Models without zerks include

carbon graphite drive shaft bushings. Packing

Kevlar®/Teflon® seal with temperature range of

-20° to 210°F. Wet-end parts: zerk models—

constructed from bronze, brass, Kevlar, and Teflon;

nonzerk models—constructed from bronze, brass,

carbon, graphite, Kevlar, and Teflon.

6NY91

6NY67



6PA37

6PA33

6PA23

ROLLER PUMPS WITH TEFLON ROLLERS AND 1725 RPM MOTOR - COMMERCIAL DUTY


NEMA MOTORFRAME W/BASE HP

MOTORENCLOSURE

MAX. FLOW(GPM)

PRESSURERELIEF VALVE SEAL TYPE

STOCKNO.

1/2 1 115 6.2 56C 1/3 ODP 3.8 NoViton

Mechanical6PA37

1/2 1 115/230 7.6/3.8 56C 1/2 ODP 5.8 NoViton

Mechanical6PA38

3/4 1 115/230 8.0/4.0 56C 1/2 ODP 8.2 NoViton

Mechanical6PA39

GEAR PUMPS WITH STEEL SPUR GEARS AND 1725 RPM MOTOR - LIGHT DUTY

1/2 1 115 5.5 Carbonator 1/3 ODP 4.4 No Silicone Lip 6PA33

1/2 1 115/230 6.8/3.4 Carbonator 1/2 ODP 5.2 No Silicone Lip 6PA34

GEAR PUMPS WITH STAINLESS STEEL HELICAL GEARS AND 1725 RPM MOTOR - COMMERCIAL DUTY

1/2 1 115/230 8.2/4.1 56C 1/2 ODP 7.2 YesViton

Mechanical6PA35

3/4 1 115/230 11.2/5.6 56C 3/4 ODP 10.8 YesViton

Mechanical6PA36

GEAR PUMP HEADS WITH STEEL SPUR GEARS (NO MOTOR) - LIGHT DUTY

1/2 — — — Carbonator 1/3† — 4.4 No Silicone Lip 6PA28

1/2 — — — Carbonator 1/2‡ — 5.2 No Silicone Lip 6PA23

(†) Order optional single phase motor separately: No. 5U257. (‡) Order optional single phase motor separately: No. 5U258.

NSF Filter and Rendering Oil Pumps(Fat Fryer, Hot Oil Cooking Filter and Waste Oil)Dayton NSF self-priming, positive displacement,

external gear and Teflon® roller pumps feature cast-

iron construction for high temperature use. They

provide a nearly pulseless flow in applications where

non-particulate and non-abrasive fluids are pumped.

Not for use with water-based fluids. ODP single-

phase motors have thermal overload protection.

Complete pump and motor package is easy to install,

or pump heads only can be purchased for custom

installations.

Uses: Ideal for a wide range of commercial fat

fryer hot oil cooking filtering, or waste oil rendering

applications.

• Coated with NSF accepted paint


WARNING: Use only with nonflammable liquids compatible with

pump component materials and in nonflammable/nonexplosive

atmospheres.


for suggestions concerning installation, selection, options,

and accessories.

Roller Pump(Commercial-Duty)Unlike traditional pumps, roller pumps feature a

nonclogging design that passes small, nonabrasive

particulates without shearing oil. Heavy-duty steel rotor

with long-life rollers provides strong pumping action

from 3.8 to 8.2 gpm. Pumps are direct-coupled to

custom 56C frame, ODP single-phase motors. Wet-

end parts are constructed from cast iron, steel, 303

stainless steel, carbon, ceramic, and Viton.®

With Stainless Steel Helical

Gears (Commercial-Duty)Nonclogging pumps are highly recommended for

high flow waste oil rendering because they are able

to pass nonabrasive particles and reduce oil shear.

Feature heavy-duty stainless steel noncorrosive gears

for quiet and long-life pumping action, and flows from

7.2 to 10.8 gpm. They are direct-coupled to 56C

frame, ODP single-phase motors. For reverse rotation,

rotate relief valve cover 180 degrees. Wet-end parts

are constructed from cast iron, steel, stainless steel,

carbon, graphite, ceramic, and Viton.

Carbonator Mount With Steel

Gears (Light-Duty)Pumps feature carbon graphite bushing shaft support

and pump flows from 2.2 to 4.4 gpm. Direct-coupled

to carbonator-mount, ODP single-phase motors. Wet-

end parts are constructed from cast iron, steel, 303

stainless steel, carbon, graphite, and Viton.

dayton products are available at grainger. rotary gear … · dayton products are available at...

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