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    40 Products

    Constant-Flow-Rate Gear Pumps without Motor for Water

    Image of Product. Front orientation. Gear Pumps. Constant-Flow-Rate Gear Pumps without Motor for Water.
    These gear pumps have a bronze housing and gears for use with water. Select your own motor to tailor them to your application. Use a NEMA 56C frame electric motor with a coupling and belt/pulley drive. They produce a smooth flow of liquid for water delivery. All are self-priming, which means they create a suction force to draw liquid upward and fill the pump chamber. Do not use with solids.
    Note: Pumps must be filled with liquid before use. They need a constant flow of liquid and cannot run dry.
    Required
    hp, hp
    Intake (NPT)
    Discharge (NPT)
    Overall
    Shaft
    Max. Flow Rate @
    25 psi, gpm
    Max. Flow
    Rate
    Max. ft. of
    Head, ft.
    Max. Pressure,
    psi
    Max. Viscosity,
    cP
    Temp. Range,
    ° F
    @ 25
    psi
    @ 100
    psi
    Pipe
    Size
    Connection
    Gender
    Pipe
    Size
    Connection
    Gender
    Lg.
    Wd.
    Ht.
    Dia.
    Lg.
    Ctr.-to-Base
    Lg.
    Each
    For 1,725 rpm Maximum Motor Speed
    1.82.1 gpm34515017,300-20 to 2101/81/41/4
    ThreadedFemale1/4
    ThreadedFemale6 3/16"2 1/2"3"1/2"1 13/16"1 7/8"0000000000000
    10.210.6 gpm34515017,300-20 to 2103/41 3/41/2
    ThreadedFemale1/2
    ThreadedFemale6 7/8"3 3/4"4 1/4"5/8"2"2 3/4"0000000000000
    1919.8 gpm34515017,300-20 to 2101 1/22 3/43/4
    ThreadedFemale3/4
    ThreadedFemale7 1/16"4 3/8"5 1/4"5/8"2 3/16"3 9/16"0000000000000
    22.223.5 gpm34515017,300-20 to 2101 1/22 3/41
    ThreadedFemale1
    ThreadedFemale7 5/16"4 5/16"5 1/4"5/8"2 3/16"3 9/16"0000000000000
     
    For 1,750 rpm Maximum Motor Speed
    77.2 gpm34515017,300-40 to 2103/41 1/23/8
    ThreadedFemale3/8
    ThreadedFemale6 9/16"3 3/4"4 1/4"5/8"2 1/16"2 3/4"0000000000000
     

    Constant-Flow-Rate Gear Pumps for Oil

    Image of Product. Front orientation. Gear Pumps. Constant-Flow-Rate Gear Pumps for Oil.
    A high-horsepower motor moves oil with a viscosity similar to SAE 60 motor oil. These gear pumps produce a smooth flow of liquid to lubricate equipment and blend oils. Motor is open dripproof (ODP) for use in clean, dry, and well-ventilated environments. Pumps are gravity fed and require an elevated liquid source to fully fill the pump before turning on. Do not run dry or use with solids.
    Note: If flow control is needed, place valves or reducers on the discharge side; never restrict the inlet of a pump with a valve or reducer.
    Cannot Be Sold Outside North America—Products cannot be sold outside North America due to restrictions.
    Intake (NPT)
    Discharge (NPT)
    Overall
    Max. Flow
    Rate
    Max. ft. of
    Head, ft.
    Max. Pressure,
    psi
    Max. Viscosity,
    cP
    Temp. Range,
    ° F
    Power,
    hp
    Current
    Pipe
    Size
    Connection
    Gender
    Pipe
    Size
    Connection
    Gender
    Lg.
    Wd.
    Ht.
    Cannot Be Sold To
    Each
    240V AC/460V AC, Three Phase—Without Thermal Overload Protection
     
    Hardwire
    5 gpm577250880-20 to 2401/22 amp/1 amp1/2
    ThreadedFemale1/2
    ThreadedFemale21 5/8"6 7/8"8 1/2"Outside North America00000000000000000
     
    208V AC to 240V AC/460V AC, Three Phase—Without Thermal Overload Protection
     
    Hardwire
    10 gpm577250880-20 to 24026.2 amp/3.1 amp3/4
    ThreadedFemale3/4
    ThreadedFemale24"6 7/8"8 1/2"Outside North America0000000000000000
    20 gpm577250880-20 to 24026.2 amp/3.1 amp1
    ThreadedFemale1
    ThreadedFemale24 1/2"6 7/8"8 1/2"Outside North America0000000000000000
    30 gpm577250880-20 to 24038.2 amp/4.1 amp1
    ThreadedFemale1
    ThreadedFemale25"6 7/8"8 1/2"Outside North America0000000000000000
    40 gpm577250880-20 to 240513.8 amp/6.9 amp1 1/2
    ThreadedFemale1 1/2
    ThreadedFemale28 1/8"11 7/8"8 1/2"Outside North America0000000000000000
     

    Hydraulic Gear Pumps

    These gear pumps have few moving parts so they're less prone to wear than other hydraulic pumps. Combine with an electric motor to generate flow in a hydraulic system. To mount to a NEMA C-face motor, use a Pump-to-Motor Mount (sold separately).
    SAE AA—3 1/4" Mounting Hole Center-to-Center
    Image of Product. Front orientation. Gear Pumps. Hydraulic Gear Pumps, AA.
    Image of Attribute. Front orientation. Contains Annotated. Hydraulic Gear Pumps, AA.
    UN/UNF (SAE Straight) Thread—UN/UNF (SAE Straight) thread connections have straight threads and are also known as O-ring Boss fittings.
    Inlet Connection
    Outlet
    Connection
    Overall
    Shaft
    Fixed Displacement
    Rate, in³/rev
    Max. Flow
    Rate
    Max. Pressure,
    psi
    Max. Rotation
    Speed, rpm
    Thread
    Size
    Thread Type
    Dash
    Size
    Thread
    Size
    Thread Type
    Dash
    Size
    Lg.
    Ht.
    Dia.
    Lg.
    Choose a Drive Direction
    Each
    0.111.7 gpm2,5004,0007/8"-14
    UN/UNF (SAE Straight)
    103/4"-16
    UN/UNF (SAE Straight)
    084"3 5/8"1/2"1 1/4"
    Clockwise
    ,
    Counterclockwise
    00000000000000
    0.213.3 gpm2,5004,0007/8"-14
    UN/UNF (SAE Straight)
    103/4"-16
    UN/UNF (SAE Straight)
    084 1/4"3 5/8"1/2"1 1/4"
    Clockwise
    ,
    Counterclockwise
    0000000000000
    0.335.2 gpm2,5004,0007/8"-14
    UN/UNF (SAE Straight)
    103/4"-16
    UN/UNF (SAE Straight)
    084 3/8"3 5/8"1/2"1 1/4"
    Clockwise
    ,
    Counterclockwise
    0000000000000
    0.528.4 gpm2,5004,0007/8"-14
    UN/UNF (SAE Straight)
    103/4"-16
    UN/UNF (SAE Straight)
    084 3/4"3 5/8"1/2"1 1/4"
    Clockwise
    ,
    Counterclockwise
    0000000000000
    0.647.8 gpm2,0003,0007/8"-14
    UN/UNF (SAE Straight)
    103/4"-16
    UN/UNF (SAE Straight)
    084 7/8"3 5/8"1/2"1 1/4"
    Clockwise
    ,
    Counterclockwise
    0000000000000
     
    SAE A—4 3/16" Mounting Hole Center-to-Center
    Image of Product. Front orientation. Gear Pumps. Hydraulic Gear Pumps, A.
    Image of Attribute. Front orientation. Contains Annotated. Hydraulic Gear Pumps, A.
    UN/UNF (SAE Straight) Thread—UN/UNF (SAE Straight) thread connections have straight threads and are also known as O-ring Boss fittings.
    Inlet Connection
    Outlet
    Connection
    Overall
    Shaft
    Fixed Displacement
    Rate, in³/rev
    Max. Flow
    Rate
    Max. Pressure,
    psi
    Max. Rotation
    Speed, rpm
    Thread
    Size
    Thread Type
    Dash
    Size
    Thread
    Size
    Thread Type
    Dash
    Size
    Lg.
    Ht.
    Dia.
    Lg.
    Choose a Drive Direction
    Each
    0.375.9 gpm4,0004,0007/8"-14
    UN/UNF (SAE Straight)
    103/4"-16
    UN/UNF (SAE Straight)
    084 7/8"4 5/8"3/4"1"
    Clockwise
    ,
    Counterclockwise
    00000000000000
    0.497.9 gpm4,0004,0001 1/16"-12
    UN/UNF (SAE Straight)
    127/8"-14
    UN/UNF (SAE Straight)
    105"4 5/8"3/4"1"
    Clockwise
    ,
    Counterclockwise
    0000000000000
    0.619.9 gpm4,0004,0001 1/16"-12
    UN/UNF (SAE Straight)
    127/8"-14
    UN/UNF (SAE Straight)
    105 1/8"4 5/8"3/4"1"
    Clockwise
    ,
    Counterclockwise
    0000000000000
    0.9811.9 gpm4,0003,0001 1/16"-12
    UN/UNF (SAE Straight)
    127/8"-14
    UN/UNF (SAE Straight)
    105 1/2"4 5/8"3/4"1"
    Clockwise
    ,
    Counterclockwise
    0000000000000
    1.1614.1 gpm4,0003,0001 5/16"-12
    UN/UNF (SAE Straight)
    161 1/16"-12
    UN/UNF (SAE Straight)
    125 5/8"4 5/8"3/4"1"
    Clockwise
    ,
    Counterclockwise
    0000000000000
    1.415.9 gpm3,2002,8001 5/16"-12
    UN/UNF (SAE Straight)
    161 1/16"-12
    UN/UNF (SAE Straight)
    125 7/8"4 5/8"3/4"1"
    Clockwise
    ,
    Counterclockwise
    0000000000000
    1.6516.1 gpm2,7002,4001 5/16"-12
    UN/UNF (SAE Straight)
    161 1/16"-12
    UN/UNF (SAE Straight)
    126 1/8"4 5/8"3/4"1"
    Clockwise
    ,
    Counterclockwise
    0000000000000
     
    SAE B—5 3/4" Mounting Hole Center-to-Center
    Image of Product. Front orientation. Gear Pumps. Hydraulic Gear Pumps, B.
    Image of Attribute. Front orientation. Contains Annotated. Hydraulic Gear Pumps, B.
    UN/UNF (SAE Straight) Thread—UN/UNF (SAE Straight) thread connections have straight threads and are also known as O-ring Boss fittings.
    Inlet Connection
    Outlet
    Connection
    Overall
    Shaft
    Fixed Displacement
    Rate, in³/rev
    Max. Flow
    Rate
    Max. Pressure,
    psi
    Max. Rotation
    Speed, rpm
    Thread
    Size
    Thread Type
    Dash
    Size
    Thread
    Size
    Thread Type
    Dash
    Size
    Lg.
    Ht.
    Dia.
    Lg.
    Choose a Drive Direction
    Each
    2.0124.5 gpm4,0003,0001 5/8"-12
    UN/UNF (SAE Straight)
    201 5/16"-12
    UN/UNF (SAE Straight)
    167 1/8"5 7/8"7/8"1 1/4"
    Clockwise
    ,
    Counterclockwise
    00000000000000
    2.3228.3 gpm4,0003,0001 5/8"-12
    UN/UNF (SAE Straight)
    201 5/16"-12
    UN/UNF (SAE Straight)
    167 3/8"5 7/8"7/8"1 1/4"Clockwise0000000000000
    3.0533.5 gpm2,9002,7001 5/8"-12
    UN/UNF (SAE Straight)
    201 5/16"-12
    UN/UNF (SAE Straight)
    167 3/4"5 7/8"7/8"1 1/4"
    Clockwise
    ,
    Counterclockwise
    0000000000000
     
    SAE 4F17—2" Mounting Hole Center-to-Center
    Image of Product. Front orientation. Gear Pumps. Hydraulic Gear Pumps, 4F17.
    Image of Attribute. Front orientation. Contains Annotated. Hydraulic Gear Pumps, 4F17.
    UN/UNF (SAE Straight) Thread—UN/UNF (SAE Straight) thread connections have straight threads and are also known as O-ring Boss fittings.
    Inlet Connection
    Outlet
    Connection
    Overall
    Shaft
    Fixed Displacement
    Rate, in³/rev
    Max. Flow
    Rate
    Max. Pressure,
    psi
    Max. Rotation
    Speed, rpm
    Thread
    Size
    Thread Type
    Dash
    Size
    Thread
    Size
    Thread Type
    Dash
    Size
    Lg.
    Ht.
    Dia.
    Lg.
    Drive Direction
    Each
    0.070.8 gpm3,0004,0009/16"-18
    UN/UNF (SAE Straight)
    069/16"-18
    UN/UNF (SAE Straight)
    064 5/8"3 7/16"1/2"1 3/8"Clockwise, Counterclockwise00000000000000
    0.131.7 gpm3,0004,0003/4"-16
    UN/UNF (SAE Straight)
    083/4"-16
    UN/UNF (SAE Straight)
    084 5/8"3 7/16"1/2"1 3/8"Clockwise, Counterclockwise0000000000000
    0.395 gpm3,0004,0007/8"-14
    UN/UNF (SAE Straight)
    107/8"-14
    UN/UNF (SAE Straight)
    105 1/8"3 7/16"1/2"1 3/8"Clockwise, Counterclockwise0000000000000
    0.715.4 gpm1,8002,4007/8"-14
    UN/UNF (SAE Straight)
    107/8"-14
    UN/UNF (SAE Straight)
    105 5/8"3 7/16"1/2"1 3/8"Clockwise, Counterclockwise0000000000000
     

    Constant-Flow-Rate Gear Pumps for Water

    Image of Product. Front orientation. Gear Pumps. Constant-Flow-Rate Gear Pumps for Water.
    These gear pumps produce a smooth flow of liquid for applications such as cooling engines, powering hydraulic equipment, and extracting liquid from holding tanks. Pumps are self-priming after you fill the pump chamber with liquid. As liquid in the chamber is expelled, a suction force is created which allows the pump to draw liquid upward. Do not use with solids. Pumps can be used in dusty, dirty, and damp environments.
    Note: Pumps must be filled with liquid before use. They need a constant flow of liquid and cannot run dry. If flow control is needed, place valves or reducers on the discharge side; never restrict the inlet of a pump with a valve or reducer.
    Cannot Be Sold to Canada—Pumps that cannot be sold to Canada are restricted by local energy efficiency requirements.
    Intake
    (NPT)
    Discharge
    (NPT)
    Overall
    Max. Flow
    Rate, gpm
    Discharge
    Pressure, psi
    Max. Viscosity,
    cP
    Temp. Range,
    ° F
    Power,
    hp
    Current
    Pipe
    Size
    Gender
    Pipe
    Size
    Gender
    Motor Enclosure Type
    Lg.
    Wd.
    Ht.
    Cannot Be
    Sold To
    Each
    115V AC/230V AC, Single Phase—Without Thermal Overload Protection
     
    Hardwire
    2.1150100,00032 to 1401/27.4 amp/3.7 amp1/4
    Female1/4
    FemaleTotally Enclosed16 1/16"8 3/16"8"0000000000000000
    8.5150100,00032 to 140112.8 amp/6.4 amp1/2
    Female1/2
    FemaleTotally Enclosed18 1/8"9 3/16"9"000000000000000
     
    230V AC/460V AC, Three Phase—Without Thermal Overload Protection
     
    Hardwire
    10.2150100,00032 to 1401 1/24.4 amp/2.2 amp1/2
    Female1/2
    FemaleTotally Enclosed Fan-Cooled (TEFC)19 13/16"9 5/16"7 1/4"Canada000000000000000
    23150100,00032 to 14038.4 amp/4.2 amp1
    Female1
    FemaleTotally Enclosed Fan-Cooled (TEFC)25 1/8"10 5/16"9 1/16"Canada000000000000000
     

    Constant-Flow-Rate Gear Pumps without Motor for Chemicals

    Image of Product. Front orientation. Gear Pumps. Constant-Flow-Rate Gear Pumps without Motor for Chemicals.
    With a 316 stainless steel housing and stainless steel gears, these gear pumps are often used to dispense chemicals such as ethylene glycol, isopropyl alcohol, and nitric acid. Use an electric motor with a coupling and belt/pulley drive. They produce a smooth flow of liquid. All are self-priming, which means they create a suction force to draw liquid upward and fill the pump chamber. Do not use with solids.
    Required
    hp, hp
    Intake (NPT)
    Discharge (NPT)
    Overall
    Shaft
    Max. Flow Rate @
    25 psi, gpm
    Max. Flow
    Rate
    Max. ft. of
    Head, ft.
    Max. Pressure,
    psi
    Max. Viscosity,
    cP
    Temp. Range,
    ° F
    @ 25
    psi
    @ 100
    psi
    Pipe
    Size
    Connection
    Gender
    Pipe
    Size
    Connection
    Gender
    Lg.
    Wd.
    Ht.
    Dia.
    Lg.
    Ctr.-to-Base
    Lg.
    Each
    For 1,800 rpm Maximum Motor Speed
    4.34 gpm346.315020,000-50 to 4501/43/41/2
    ThreadedFemale1/2
    ThreadedFemale6 1/4"3"3 3/4"1/2"1 1/4"2 5/8"00000000000000000
    10.210 gpm346.315020,000-50 to 4501/21 1/23/4
    ThreadedFemale3/4
    ThreadedFemale7 1/2"3 3/8"4 3/8"5/8"1 3/4"3"0000000000000000
     

    Constant-Flow-Rate Gear Pumps without Motor for Oil

    Image of Product. Front orientation. Gear Pumps. Constant-Flow-Rate Gear Pumps without Motor for Oil.
    A cast iron housing and steel gears allow these gear pumps to be used to dispense oil and fuel such as hydraulic oil and diesel fuel. Select your own motor to tailor them to your application. Use an air or electric motor with a coupling and belt/pulley drive. They produce a smooth flow of liquid for applications such as engine lubrication. All are self-priming, which means they create a suction force to draw liquid upward and fill the pump chamber. Do not use with solids.
    Note: Pumps must be filled with liquid before use. They need a constant flow of liquid and cannot run dry.
    Required
    hp, hp
    Intake (NPT)
    Discharge (NPT)
    Overall
    Shaft
    Max. Flow Rate @
    25 psi, gpm
    Max. Flow
    Rate
    Max. ft. of
    Head, ft.
    Max. Pressure,
    psi
    Max. Viscosity,
    cP
    Temp. Range,
    ° F
    @ 25
    psi
    @ 100
    psi
    Pipe
    Size
    Connection
    Gender
    Pipe
    Size
    Connection
    Gender
    Lg.
    Wd.
    Ht.
    Dia.
    Lg.
    Ctr.-to-Base
    Lg.
    Each
    For 1,725 rpm Maximum Motor Speed
    8.99 gpm46220020,000-20 to 4003/411/2
    ThreadedFemale1/2
    ThreadedFemale7 1/4"3 7/16"4 1/2"5/8"1 9/16"3"00000000000000000
     

    Compact Constant-Flow-Rate Gear Pumps for Water and Oil

    Image of Product. Front orientation. Gear Pumps. Compact Constant-Flow-Rate Gear Pumps for Water and Oil.
    Designed to fit into small equipment, these pumps have miniature gears and a fractional horsepower motor for low-flow applications. Pumps are gravity fed and require an elevated liquid source to fully fill the pump before turning on. Do not run dry or use with solids.
    Note: If flow control is needed, place valves or reducers on the discharge side; never restrict the inlet of a pump with a valve or reducer
    Intake (NPT)
    Discharge (NPT)
    Overall
    Max. Flow Rate
    Max. ft. of
    Head, ft.
    Max. Pressure,
    psi
    Max. Viscosity,
    cP
    Temp. Range,
    ° F
    Power
    Current
    Connection
    Gender
    For Tube
    ID
    Connection
    Gender
    For Tube
    ID
    Lg.
    Wd.
    Ht.
    Each
    120V AC, Single Phase—With Thermal Overload Protection
     
    Hardwire
    0.43 gpm (55 fl oz/min)282080010 to 180Fractional1.5 ampBarbedMale3/16"BarbedMale3/16"4 3/8"3"3 3/4"00000000000000
     
    240V AC, Single Phase—With Thermal Overload Protection
     
    Hardwire
    0.43 gpm (55 fl oz/min)282080010 to 180Fractional1.5 ampBarbedMale3/16"BarbedMale3/16"4 3/8"3"3 3/4"0000000000000
     

    Harsh-Environment Compact Constant-Flow-Rate Gear Pumps for Water and Oil

    Image of Product. Front orientation. Gear Pumps. Harsh-Environment Compact Constant-Flow-Rate Gear Pumps for Water and Oil.
    An aluminum enclosure around the motor provides protection in dusty and dirty environments. Designed to fit into small equipment, these pumps have miniature gears and a fractional horsepower motor for low-flow applications. Pumps are gravity fed and require an elevated liquid source to fully fill the pump before turning on. Do not run dry or use with solids.
    Note: If flow control is needed, place valves or reducers on the discharge side; never restrict the inlet of a pump with a valve or reducer.
    Intake (NPT)
    Discharge (NPT)
    Overall
    Max. Flow Rate
    Max. ft. of
    Head, ft.
    Max. Pressure,
    psi
    Max. Viscosity,
    cP
    Temp. Range,
    ° F
    Power
    Current
    Connection
    Gender
    For Tube
    ID
    Connection
    Gender
    For Tube
    ID
    Lg.
    Wd.
    Ht.
    Each
    12V DC—Without Thermal Overload Protection
     
    Hardwire
    0.61 gpm (78 fl oz/min)462080010 to 180Fractional2.2 ampBarbedMale3/16"BarbedMale3/16"4"1 3/4"2 1/2"0000000000000
     
    24V DC—Without Thermal Overload Protection
     
    Hardwire
    0.61 gpm (78 fl oz/min)462080010 to 180Fractional1.4 ampBarbedMale3/16"BarbedMale3/16"4"1 3/4"2 1/2"000000000000
     
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