Rotary Gear Pumps

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.
Rotary Gear Pumps
Dayton Product Introduction
Introducing a wide selection of NEW Dayton pumps
8SS1877 ©2006 Dayton Electric Manufacturing Co.
M-HS51
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 Offer
Pumps 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.
Contents
3 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)
*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.
Call or stop by your local Grainger branch, or go online to grainger.com/dayton
Rotary Gear Pump Selection Guide
Pedestal Gear Pump Long
Coupled with Motor
Dayton 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.
Flexibility
Both 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 nonabrasive 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.
Pedestal Gear Pump Driven
by Pulley, Belt and Motor
Durability
Dayton pumps are simple in construction, with a minimum number of moving parts for less maintenance 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.
Typical Gear Pump Installation
ELECTRIC
MOTOR
BALL VALVE
QUICK
DISCONNECT
VALVES
DISCHARGE
PRESSURE
GAUGE
Pillow Block Shaft Assembly
GEAR PUMP
VACUUM SWITCH
FLEXIBLE COUPLING
PULLEY
BALL BEARING MANDREL
COUPLING
LINE STRAINER
RELIEF
VALVE
SPACE BLOCKS
HEIGHT WILL VARY
WITH PUMP SIZE
SUCTION
RELIEF VALVE
PUMP WITH
RELIEF VALVE
FOOT VALVE
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.
3
Dayton Pumps: The right product for any job.
Order Dayton Today!
How to Select Rotary Gear Pumps
Step 1
Determine 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 2
Select pump and motor HP combination that delivers the flow (in GPM) required at, or above, the
total pump pressure calculated in step 1.
Step 3
Consider 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.
TABLE 1 — SPEED VS. VISCOSITY
TABLE 2 — HP VS. VISCOSITY
VISCOSITY (SSU)
SPEED (RPM)
50-500
1725
1200
1500
2000
30
500
1000
5000
10,000
1300
7000
1000
20,000
600
50,000
400
100,000
VISCOSITY (SSU)
PRESSURE
(PSI)
200
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
VISCOSITY VS. TEMPERATURE
6NY91
Viscosity ( SSU )
100,000
10,000
1000
J
I
H
G
F
E
D
C
B
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
K
A
100
10
30
50
70
90
110
130
150
170
190
210
Temperature ( °F )
4
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.
Call or stop by your local Grainger branch, or go online to grainger.com/dayton
Step 4
Consider 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 5
Consider 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.
4BA67
Replacement Seal, Options
and Accessories
Dayton 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.
Ports allow
mechanical
seal flush
Relief Valve
AC adjustable frequency
drive controller for flow
control on 3-phase pumps.
(flow proportional to speed)
The list below also refers to accessories which may
be suitable for your application. Please also see
www.grainger.com/dayton for additional information.
REPLACEMENT SEAL, OPTIONS AND ACCESSORIES
ACCESSORY
Variable Frequency Drives
Shaft Couplings
Pressure Relief Valves
Motor Control Box
Close Coupled Rotary Gear Pumps
Pedestal Rotary Gear Pumps
Recommended use of
suction line strainer
SEE PAGE IN GRAINGER
CATALOG #397
289
3552
3434
3565, 3568, 3569, 3570
3570
Stainless Steel Rotary Gear Pumps
3568
Chemical Compatibility Chart
3565, 3566, 3568
3572
Pulleys
251
Belts
244
Pillow Block Bearings and Mandrels
3HX74
3567
Carbonator Mount Rotary Gear Pumps
Heavy Duty Rotary Gear Pumps
Close-Coupled Gear Pump
with Motor and Relief Valve
42
154 and 260
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.
Dayton
®
5
Tough, long-running pumps that never let you down
Order Dayton Today!
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 singlephase 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.
6PA19
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 temperature range of 32° to 280°F. Wet-end parts are
constructed from cast iron, steel, 304 stainless
steel, carbon, ceramic, and Viton.
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.
Carbonator Mount Bronze
(Intermittent-Duty)
Note: See Rotary Gear Pump Selection Guide on pages 3-5
for suggestions concerning installation, selection, options,
and accessories.
6PA24
Excellent for water-based fluids. Feature 303 stainless 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.
6PA21
BRONZE PLATE MOUNT GEAR PUMPS WITH MOTOR
CARBONATOR MOUNT GEAR PUMPS WITH MOTOR
NEMA MOTOR
FRAME W/BASE
HP
VOLTAGE
STOCK NO.
PORT SIZE
FNPT (IN.)
HP
1/4
NEMA 48
1/3
115
6PA21
1/4
1/3
2.2
3/8
NEMA 48
1/2
115/230
6PA22
3/8
1/2
4.4
BRONZE PLATE MOUNT GEAR PUMP HEADS (NO MOTOR)*
VOLTAGE
BRONZE
STOCK NO.
CAST IRON
STOCK NO.
1.3
115
6PA29
6PA31
3.0
115/230
6PA30
6PA32
CARBONATOR MOUNT GEAR PUMP HEADS (NO MOTOR)
1/4
—
—
—
6PA19
1/4
1/3†
2.2
1.3
—
6PA24
6PA26
3/8
—
—
—
6PA20
3/8
1/2‡
4.4
3.0
—
6PA25
6PA27
(*) Includes pump head, NEMA 48 and 56 frame motor mounting
hardware, and instructions.
6
GPM OF OIL @ TOTAL PSI
FREE FLOW
100
PORT SIZE
FNPT (IN.)
(†) Order optional single phase motor separately: No. 5U257.
(‡) Order optional single phase motor separately: No. 5U258.
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.
Call or stop by your local Grainger branch, or go online to grainger.com/dayton
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
WARNING: Use only with nonflammable
liquids compatible with pump component
materials and in nonflammable/
nonexplosive atmospheres.
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
• Pumps can operate bi-directionally (reversible)
• Viton® mechanical seals with flush chamber
Note: See Rotary Gear Pump Selection Guide on pages 3-5
for suggestions concerning installation, selection, options, and
accessories. Pumps are not available with pressure relief valves.
The valves must be ordered separately.
CLOSE - COUPLED PUMPS WITH 1725 RPM TEFC MOTOR
PORT SIZE
FNPT (IN.)
PHASE
VOLTAGE
NEME MOTOR
AMPS FRAME W/BASE
3/8
1
115/230
3/8
3
230/460
2.6/1.3
56C
3/4
1/2
1
115/230
18.4/9.2
56C
1 1/2
1/2
3
230/460
4.8/2.4
56C
1 1/2
1
1
230
14.7
182/184TC
1
3
230/460
8.2/4.1
182/184TC
11.2/5.6
56C
HP
SUCTION
LIFT (FT.)
GPM @
FREE FLOW
GPM @
100 PSI STOCK NO.
3/4
3
4.6
3.7
6PA13
3
4.6
3.7
6PA14
11
10.5
8.7
6PA15
11
10.5
8.7
6PA16
3
17
24
20.5
6PA17
3
17
24
20.5
6PA18
6PA17
CLOSE- COUPLED MOTOR MOUNT GEAR PUMP HEADS (NO MOTOR)
OPTIONAL SUGGESTED MOTOR
PORT SIZE
FNPT (IN.)
3/8
1/2
1
PUMP SUCTION*
RPM LIFT (FT.)
FREE FLOW
GPM
125 PSI
HP
GPM
HP
900
1.2
2.4
1/6
1.1
1/3
1200
1.8
3.2
1/4
1.9
1/2
1725
3.0
4.6
1/3
3.3
3/4
900
4.5
5.5
1/4
3.1
3.4
1200
6.0
7.3
1/3
4.9
1
1725
11.0
10.5
1/2
8.1 1 1/2
900
7.0
12.6
1/2
8.1
2
1200
10.0
16.7
3/4
12.2
3
1725
17.0
24.0
1
19.5
3
NEMA
MOTOR
FRAME REQ.
STOCK
NO.
HP PHASE
VOLTAGE
STOCK
NO.
HP PHASE
VOLTAGE
STOCK
NO.
56C 6NY97
3/4
1
115/230
1K084
3/4
3
2085N115
230/460
56C 6NY98
1
1
115/230
6K045
1
3
2086MA12
230/460
56C 6NY99 1 1/2
1
115/230
1K082 1 1/2
3
2086MA10
230/460
6PA10
PEDESTAL GEAR PUMP HEADS (NO MOTOR)
3/8
3/8
3/8
900
1.2
2.4
1/6
1.1
1/3
1200
1.8
3.2
1/4
1.9
1/2
1725
3.0
4.6
1/3
3.3
3/4
900
4.5
5.5
1/4
3.1
3/4
1200
6.0
7.3
1/3
4.9
1
1725
11.0
10.5
1/2
8.1 1 1/2
900
7.0
12.6
1/2
8.1
2
1200
10.0
16.7
3/4
12.2
3
1725
17.0
24.0
1
19.5
3
3
2083N642
230/460
56C
6PA10
3/4
1
115/230
5K460
3/4
56C
6PA11
1
1
115/230
6K699
1
3 230/460 3N643
56C
6PA12
1 1/2
1
115/230
6K305 1 1/2
3 230/460 3N644
(*) With wetted gears.
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.
Dayton
®
7
Dayton Pumps: The right product for any job.
Order Dayton Today!
Heavy-Duty Cast-Iron and Bronze
Gear Pumps (Close-Coupled)
Dayton self-priming, positive displacement, external 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
6NY37
Cast-Iron
Specifically 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.
Bronze
Ryton ® PPS (Polyphenylene Sulfide) spur gears
provide quiet operation and chemical compatibility.
No metal-to-metal contact. Excellent for waterbased 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.
to handle up to 500 SSU at 125 psi
• Pumps can operate bi-directionally (reversible)
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.
WARNING: Use only with nonflammable liquids compatible
with pump component materials and in nonflammable/
nonexplosive atmospheres.
BRONZE/CAST- IRON PUMPS WITH MOTORS AND RELIEF VALVES (10 WT. OIL @ 70°F AND 500 SSU)
6NY27
PORT SIZE
FNPT (IN.)
PHASE
1/4
1/4
NEMA MOTOR
FRAME W/BASE
MOTOR HP
SUCTION
LIFE (FT.)*
100 PSI
GPM
BRONZE
STOCK NO.
CAST IRON
STOCK NO.
4.8
4.4
6NY37
6NY47
4.8
4.4
6NY38
6NY48
7.0
6.5
6NY39
6NY49
7.0
6.5
6NY40
6NY50
10.8
10.2
6NY41
6NY51
10.8
10.2
6NY42
6NY52
20.6
19.8
6NY43
6NY53
15.2
20.6
19.8
6NY44
6NY54
19.5
24.8
23.9
6NY45
6NY55
19.5
24.8
23.9
6NY46
6NY56
VOLTAGE
AMPS
1
115/230
11.2/5.6
56C
3/4
3.5
3
230/460
2.6/1.3
56C
3/4
3.5
3/8
1
115/230
13.2/6.6
56C
1
7.9
3/8
3
230/460
3.2/1.6
56C
1
7.9
1/2
1
115/230
18.4/9.2
56C
1 1/2
12.3
1/2
3
230/460
4.8/2.4
56C
1 1/2
12.3
3/4
1
115/230
21.2/10.6
143TC/145TC
2
15.2
3/4
3
230/460
6.0/3.0
143TC/145TC
2
1
1
230
14.7
182TC/184TC
3
1
3
230/460
8.2/4.1
182TC/184TC
3
FREE FLOW
GPM
(*) With wetted gears.
BRONZE/CAST- IRON PUMP HEADS ONLY WITH RELIEF VALVES
6NY32
8
OPTIONAL SUGGESTED MOTOR
PORT SIZE
FNPT (IN.)
NEMA MOTOR
FRAME REQ.
BRONZE
STOCK NO.
CAST IRON
STOCK NO.
HP
PHASE
VOLTAGE
STOCK NO.
HP
PHASE
VOLTAGE
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
STOCK NO.
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.
Call or stop by your local Grainger branch, or go online to grainger.com/dayton
Heavy-Duty Cast-Iron and
Bronze Pedestal Gear Pumps
Dayton 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
Bronze
Excellent 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-Iron
6NY57
Specifically 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.
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.
6NY62
BRONZE/CAST- IRON PUMP HEADS ONLY WITH RELIEF VALVES (10 WT. OIL @ 70°F AND 500 SSU)
PORT SIZE
FNPT (IN.)
3/8
1/2
3/4
1
1 1/4
FREE FLOW †
GPM
125 PSI
GPM
PUMP RPM
SUCTION LIFT
(FT.)
900
1.5
2.5
1/4
1.8
1/2
1200
2.2
3.3
1/3
2.6
3/4
1725
3.5
4.8
1/2
4.1
1
900
2.8
3.7
1/3
2.8
3/4
1200
5.2
4.9
1/2
4
1
1725
7.9
7
3/4
6.1
1 1/2
HP
HP
900
5.1
5.6
1/3
4.5
3/4
1200
6.7
7.5
1/2
6.4
1
BRONZE
STOCK NO.
6NY57
6NY58
6NY59
MOTOR SUGGESTIONS FOR USE WITH PUMP HEADS
CAST IRON
STOCK NO.
6NY62
6NY623
6NY64
DAYTON
STOCK NO.
HP
NEMA
FRAME
W/BASE
RPM
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
3
6K699
1
56H
1725
1 115/230
3N643
1
56
1725
3 230/460
PHASE
VOLTAGE
208230/460
6K305
1 1/2
56H
1725
1 115/230
1 1/2
56H
1725
3 230/460
1725
12.3
10.8
3/4
9.7
1 1/2
3N644
900
6.6
10.8
3/4
9.4
1 1/2
1K064
2
56H
1725
1 115/230
1200
9.3
14.3
1
12.9
2
5N304
2
145T
1740
3 230/460
1725
15.2
20.6
1 1/2
19.2
2
5K675
3
184T
1735
1 115/230
2
5KJ99
3
182T
1765
3 230/460
900
8.1
12.6
3/4
11.1
1200
11.7
16.7
1
15.2
2
1725
19.5
24.8
1 1/2
23.3
3
6NY60
6NY61
6NY65
6NY66
(*) With wetted gears. (†) RPM and GPM are approximately proportional.
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.
Dayton
®
9
Tough, long-running pumps that never let you down
Order Dayton Today!
Light-Duty Pedestal Rotary Gear Pumps
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.
6NY91
BRONZE PUMPS WITH PACKING
SEAL AND ZERK FITTINGS
PORT SIZE
FNPT (IN.)
SHAFT
DIA. (IN.)
SHAFT
HT. (IN.)
STOCK
NO.
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 SEAL
AND CARBON GRAPHITE BUSHINGS
Uses: For use with non-particulate and nonabrasive fluids in light-duty industrial, marine,
agricultural, and commercial applications.
• Max. RPM: 1725, psi: 100
temperature range of 32° to 280°F. Wet-end parts
are constructed from cast iron, steel, and Viton.
Note: Not to be used with water-based fluids.
Bronze
Excellent 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.
• Pumps can operate bi-directionally (reversible)
WARNING: Use only with nonflammable liquids compatible
with pump component materials and in nonflammable/
nonexplosive atmospheres.
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.
1/4*
1/2
1 7/8
6NY73
1/4
1/2
2 23/64
6NY74
3/8
5/8
2 5/8
6NY75
Cast-Iron
1/2
5/8
2 5/8
6NY76
3/4
5/8
3 9/16
6NY77
1
5/8
3 9/16
6NY78
Specifically designed for use with oil-based fluids.
Pumps include steel spur gears with steel shafts
and cast-iron shaft support. Viton ® lip seal has
6NY67
BRONZE PUMPS WITH PACKING SEAL,
CARBON GRAPHITE BUSHINGS, AND
RELIEF VALVE
10 WT. OIL @ 70°F AND 500 SSU
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
900
3/4
5/8
3 9/16
6NY83
1
5/8
3 9/16
6NY84
CAST- IRON PUMPS WITH VITON LIP SEAL
PORT SIZE
FNPT (IN.)
PUMP SUCTION
RPM LIFT (FT.)
OPTIONAL 1-PHASE MOTORS
FREE FLOW
100 PSI
GPM
HP
GPM
HP
1.5
1.2
1/6
0.4
—
1/4 1200
2.0
1.6
1/6
1.2
1/2
1725
2.5
2.2
1/6
1.9
1/3
900
1.5
2.5
1/4
2.1
1/2
2.2
3.3
1/3
2.9
3/4
1/4
1/2
1 7/8
6NY85
1/4 1200
1/4
1/2
2 23/64
6NY86
1725
3.5
4.8
1/2
4.4
1
2.8
3.7
1/3
3.2
3.4
5.7
4.9
1/2
4.4
1
3/8
5/8
2 5/8
6NY87
900
1/2
5/8
2 5/8
6NY88
3/8 1200
3/4
5/8
3 9/16
6NY89
1725
7.9
7.0
3/4
6.5 1 1/2
1
5/8
3 9/16
6NY90
900
5.1
5.6
1/3
5.0
3/4
1/2 1200
6.7
7.5
1/2
6.9
1
CAST- IRON PUMPS WITH PACKING
SEAL AND ZERK FITTINGS
1725
12.3 10.8
OPTIONAL 3-PHASE MOTORS
VOLTAGE
STOCK
NO.
HP
NEMA
FRAME
W/BASE
VOLTAGE
STOCK
NO.
HP
NEMA
FRAME
W/BASE
5K116
1/2
56
115/230
3N641
1/2
56
230/460
5K460
3/4
56
115/230
3N642
3/4
56
208/230/460
6K305 1 1/2
56H
115/230
3N644 1 1/2
56H
230/460
6K305 1 1/2
56H
115/230
3N644 1 1/2
56H
230/460
3/4 10.2 1 1/2
1/4
1/2
1 7/8
6NY91
900
6.6 10.8
3.4 10.0
1
1/4
5/8
2 23/64
6NY92
3/4 1200
9.3 14.3
1 13.5
2
3/8
5/8
2 5/8
6NY93
1725
15.2 20.6 1 1/2 19.8
2
1/2
5/8
2 5/8
6NY94
900
8.1 12.6
1 11.7
2
3/4
5/8
3 9/16
6NY95
1 1200
11.7 16.7
1 15.8
2
1
5/8
3 9/16
6NY96
1725
19.5 24.8 1 1/2 23.9
3
5K675
3
184T
115/230
5KJ99
3
182T
230/460
5K675
3
184T
115/230
5KJ99
3
182T
230/460
(*) Pumps were originally 1/8" ports. They have been resized
to 1/4" but still perform at 1/8" pump flow rates.
10
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.
Call or stop by your local Grainger branch, or go online to grainger.com/dayton
NSF Filter and Rendering Oil Pumps
(Fat Fryer, Hot Oil Cooking Filter and Waste Oil)
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. Wetend parts are constructed from cast iron, steel, 303
stainless steel, carbon, ceramic, and Viton.®
Dayton NSF self-priming, positive displacement,
external gear and Teflon ® roller pumps feature castiron 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 singlephase motors have thermal overload protection.
Complete pump and motor package is easy to install,
or pump heads only can be purchased for custom
installations.
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.
Uses: Ideal for a wide range of commercial fat
fryer hot oil cooking filtering, or waste oil rendering
applications.
• Coated with NSF accepted paint
• 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.
Carbonator Mount With Steel
Gears (Light-Duty)
Roller Pump
(Commercial-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. Wetend parts are constructed from cast iron, steel, 303
stainless steel, carbon, graphite, and Viton.
Unlike traditional pumps, roller pumps feature a
nonclogging design that passes small, nonabrasive
particulates without shearing oil. Heavy-duty steel rotor
6PA37
ROLLER PUMPS WITH TEFLON ROLLERS AND 1725 RPM MOTOR - COMMERCIAL DUTY
PORT SIZE
FNPT (IN.)
PHASE
VOLTAGE
AMPS
NEMA MOTOR
FRAME W/BASE
HP
MOTOR
ENCLOSURE
MAX. FLOW
(GPM)
PRESSURE
RELIEF VALVE
1/2
1
115
6.2
56C
1/3
ODP
3.8
No
Viton
Mechanical
6PA37
1/2
1
115/230
7.6/3.8
56C
1/2
ODP
5.8
No
Viton
Mechanical
6PA38
3/4
1
115/230
8.0/4.0
56C
1/2
ODP
8.2
No
Viton
Mechanical
6PA39
SEAL TYPE
STOCK
NO.
6PA33
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
Yes
Viton
Mechanical
6PA35
3/4
1
115/230 11.2/5.6
56C
3/4
ODP
10.8
Yes
Viton
Mechanical
6PA36
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
6PA23
(†) Order optional single phase motor separately: No. 5U257. (‡) Order optional single phase motor separately: No. 5U258.
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.
Dayton
®
11