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    38 Products

    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"43095K47000000000
    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"43095K5200000000
     

    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"4271K10000000
    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"4271K14000000
    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"4271K15000000
    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"4271K16000000
     
    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"4271K13000000
     

    Harsh Environment Self-Priming Dewatering Pumps

    Image of Product. Front orientation. Dewatering Pumps. Harsh Environment Self-Priming Dewatering Pumps.
    This pump has a totally enclosed nonventilated (TENV) motor that is cooled by the liquid being pumped. Also known as a flexible impeller pump, it creates a suction force that can draw liquid upward to fill the pump chamber when your liquid source is below the pump. Mount up to 6 feet above your liquid source. Pump can pass solids up to 1/4" in diameter without clogging, so there’s no need to filter sediment and debris. A handle makes it convenient for on-the-go removal of bilge water, waste oil, and spills. Pump can also be used to cool marine engines and drain liquid from holding tanks.
    Note: Pump must be filled with liquid before use. It needs a constant flow of liquid and cannot run dry.
    Overall
    Max. Flow
    Rate, gpm
    Max. ft. of
    Head, ft.
    Max. Solids
    Dia.
    Removes Water
    Down To
    Max. Viscosity,
    cP
    Temp. Range,
    ° F
    Power,
    hp
    Current,
    amp
    Intake Size
    Discharge Size
    Ht.
    Wd.
    Lg.
    Each
    120V AC, Single Phase—With Thermal Overload Protection
     
    Plug with 8 ft. Long Cord
    5 4/5301/4"Not Rated12560 to 1801/44.21/2 NPT Female, 3/4 GHT Male1/2 NPT Female, 3/4 GHT Male9"5 5/8"7 3/8"4381K670000000
     

    Any-Direction Constant-Flow-Rate Diaphragm Pumps for Water

    Image of Product. Front orientation. Diaphragm Pumps. Any-Direction Constant-Flow-Rate Diaphragm Pumps for Water, Style A.
    Image of Product. Front orientation. Diaphragm Pumps. Any-Direction Constant-Flow-Rate Diaphragm Pumps for Water, Style B.

    Style A

    Style B

    Mount these diaphragm pumps in any position, even upside down. Pumps have a fractional horsepower motor rated for intermittent use (return to room temperature before restarting). They are for use in low-flow spraying, draining, and washdown applications. They are self-priming, which means they create a suction force to draw liquid upward. Pumps can run dry and do not require an initial fill, so they’re a good choice for applications without a constant flow of liquid. Do not use with solids.
    Pressure Switch—Pumps with a pressure switch automatically shut off the pump at the maximum pressure.
    Battery Powered—Battery-operated pumps operate on a 12-volt battery. They are commonly used with agricultural sprayers and washers.
    Intake
    Discharge
    Overall
    Style
    Max. Flow
    Rate, gpm
    Flow Rate @ Pressure
    Max. ft. of
    Head, ft.
    Max. Pressure,
    psi
    Max. Temp.,
    ° F
    Current,
    amp
    Pipe
    Size
    Thread
    Type
    Gender
    Pipe
    Size
    Thread
    Type
    Gender
    Max. Self-Priming
    Ht., ft.
    Lg.
    Wd.
    Ht.
    Power
    Source
    Each
    120V AC, Single Phase—With Thermal Overload Protection and With Pressure Switch
     
    Hardwire
    A1.51.24 gpm @ 20 psi
    1.04 gpm @ 60 psi
    34615017013/8
    NPT
    Female3/8
    NPT
    Female89 3/8"3 3/8"4 1/8"Electric8080K420000000
     
    Plug In
    A1.41.15 gpm @ 20 psi
    0.84 gpm @ 60 psi
    138601300.573/8
    NPT
    Female3/8
    NPT
    Female87 5/8"3 3/8"4 1/4"Electric8080K31000000
    A1.61.32 gpm @ 20 psi
    1.07 gpm @ 60 psi
    2311001700.953/8
    NPT
    Female3/8
    NPT
    Female88 5/8"3 3/8"4"Electric8080K14000000
    A1.71.52 gpm @ 20 psi
    0.03 gpm @ 60 psi
    138601700.613/8
    NPT
    Female3/8
    NPT
    Female88 5/8"3 3/8"4"Electric8080K13000000
    A32.20 gpm @ 20 psi104451200.71/2
    NPSM
    Male1/2
    NPSM
    Male88 3/4"5"4 1/2"Electric8080K39000000
     
    120V AC, Single Phase—With Thermal Overload Protection
     
    Plug In
    A3.42.30 gpm @ 20 psi924012011/2
    NPSM
    Male1/2
    NPSM
    Male87 5/8"5"4 3/8"Electric8080K19000000
     
    12V DC—With Thermal Overload Protection and With Pressure Switch
     
    Hardwire
    B5.34.30 gpm @ 20 psi
    3.40 gpm @ 60 psi
    12060140171/2
    NPSM
    Male1/2
    NPSM
    Male810"4 15/16"4"Battery3006N11000000
     
    12V DC—Without Thermal Overload Protection and With Pressure Switch
     
    Hardwire
    A1.81.45 gpm @ 20 psi
    1.22 gpm @ 60 psi
    2311001708.73/8
    NPT
    Female3/8
    NPT
    Female108 3/8"4"4 1/8"Battery1011N13000000
    A1.81.57 gpm @ 20 psi
    1.23 gpm @ 60 psi
    138601707.23/8
    NPT
    Female3/8
    NPT
    Female128 3/8"4"4 1/8"Battery1011N12000000
    A32.69 gpm @ 20 psi1155017081/2
    NPSM
    Male1/2
    NPSM
    Male88 5/8"5"4 1/2"Battery1011N14000000
    A3.52.56 gpm @ 20 psi115501309.91/2
    NPSM
    Male1/2
    NPSM
    Male98 5/8"5"4 1/2"Battery1011N16000000
     

    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"41915K72000000000
     

    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"4272K31000000000
    8.5150100,00032 to 140112.8 amp/6.4 amp1/2
    Female1/2
    FemaleTotally Enclosed18 1/8"9 3/16"9"4272K2100000000
     
    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"Canada4272K2200000000
    23150100,00032 to 14038.4 amp/4.2 amp1
    Female1
    FemaleTotally Enclosed Fan-Cooled (TEFC)25 1/8"10 5/16"9 1/16"Canada4272K2300000000
     

    Self-Priming Circulation Pumps without Motor for Oil

    Image of Product. Front orientation. Centrifugal Pumps. Self-Priming Circulation Pumps without Motor for Oil.
    Use these pumps to move lubricating oil such as hydraulic and motor oil. Also known as flexible impeller pumps, they create a suction force that can draw liquid upward to fill the pump chamber when your liquid source is below the pump. The impeller resists clogging and wear. Select a spark-free air motor for hazardous environments or attach an electric motor with a speed reducer or a belt pulley to alter the pump speed.
    Repair kits (sold separately) include components such as impellers, O-rings, and seal lips.
    Note: Pumps must be filled with liquid before use. They need a constant flow of liquid and cannot run dry.
    Shaft
    Overall
    Max. Flow
    Rate, gpm
    Max. ft. of
    Head, ft.
    Max. Pressure,
    psi
    Max.
    Viscosity
    Temp. Range,
    ° F
    Req. Power,
    hp
    Intake Connection
    Type
    Discharge Connection
    Type
    Dia.
    Lg.
    Ctr.-to-Base
    Lg.
    Ht.
    Lg.
    Wd.
    Each
    For 500 rpm to 2,100 rpm Motor Speed
    11.55021Not Rated50 to 1801/31/2 Female NPT1/2 Female NPT5/8"1 1/8"1 15/16"3 13/16"4 1/2"4 1/8"4281K240000000
    255026Not Rated50 to 1803/41 Female NPT1 Female NPT5/8"2 1/4"1 7/8"3 9/16"6 3/8"4 3/4"4281K26000000
     
    Repair Kits

    Continuous-Duty Any-Direction Constant-Flow-Rate Diaphragm Pumps for Water and Coolants

    Image of Product. Front orientation. Diaphragm Pumps. Continuous-Duty Any-Direction Constant-Flow-Rate Diaphragm Pumps for Water and Coolants.
    Rated for continuous use, this diaphragm pump is often used to move caustics such as antifreeze and salt water. Mount it in any position, even upside down. It is typically used for low-flow spraying, draining, and washdown applications. The pump is self-priming, which means it creates a suction force to draw liquid upward. Pump can run dry and does not require an initial fill, so it’s a good choice for applications without a constant flow of liquid. Do not use with solids.
    Pressure Switch—Pumps with a pressure switch automatically shut off the pump at the maximum pressure.
    Intake
    Discharge
    Overall
    Max. Flow
    Rate, gpm
    Flow Rate @
    Pressure
    Max. Pressure,
    psi
    Max. Viscosity,
    cP
    Max. Temp.,
    ° F
    Power,
    hp
    Current,
    amp
    Connection
    Gender
    For Tube
    ID
    Connection
    Gender
    For Tube
    ID
    Lg.
    Wd.
    Ht.
    Each
    120V AC, Single Phase—With Thermal Overload Protection and With Pressure Switch
     
    Plug In
    32.50 gpm @ 20 psi402501303/161.8Barbed
    Male1/2"Barbed
    Male1/2"10 7/8"5 3/8"5 5/8"2487K110000000
     

    Drill-Operated Dewatering Pumps

    Image of ProductInUse. Front orientation. Dewatering Pumps. Drill-Operated Dewatering Pumps.
    Image of Product. Pump. Front orientation. Dewatering Pumps. Drill-Operated Dewatering Pumps.
    Image of Product. Pump with Intake and Discharge Tubes. Front orientation. Dewatering Pumps. Drill-Operated Dewatering Pumps.

    Pump

    Pump with Intake and Discharge Tubes

    Convenient to keep in your toolkit for on-site cleanup, these pumps attach to your drill for small liquid extraction jobs, as well as draining water from clogged sinks and emptying tanks. Pumps are self-priming, which means they create a suction force to draw liquid upward. 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.
    Intake
    Discharge
    Shaft
    Overall
    Max. Flow
    Rate, gpm
    Max. ft. of
    Head, ft.
    Max. Viscosity,
    cP
    Temp. Range,
    ° F
    Hose
    Size
    Thread
    Type
    Connection
    Gender
    Hose
    Size
    Thread
    Type
    Connection
    Gender
    Motor Speed,
    rpm
    Dia.
    Lg.
    Ht.
    Wd.
    Lg.
    Includes
    Each
    3 3/490140 to 1103/4GHT
    ThreadedMale3/4GHT
    ThreadedMale1,2001/4"3/4"3"4 1/2"3"99705K21000000
    3 3/490140 to 1103/4GHT
    ThreadedMale3/4GHT
    ThreadedMale1,2001/4"3/4"3"4 1/2"3"30" Slip-On Intake Tube, 34" Discharge Tube with 3/4" Male GHT Connection99705K2500000
     

    Self-Priming Circulation Pumps without Motor for Water

    Image of Product. Front orientation. Centrifugal Pumps. Self-Priming Circulation Pumps without Motor for Water.
    Also known as flexible impeller pumps, these create a suction force that can draw liquid upward to fill the pump chamber when your liquid source is below the pump. The impeller resists clogging and wear. Select a spark-free air motor for hazardous environments or attach an electric motor with a speed reducer or a belt pulley to alter the pump speed.
    Repair kits (sold separately) include components such as impellers, O-rings, and seal lips.
    Note: Pumps must be filled with liquid before use. They need a constant flow of liquid and cannot run dry.
    Overall
    Shaft
    Max. Flow
    Rate, gpm
    Max. ft. of
    Head, ft.
    Max. Pressure,
    psi
    Max.
    Viscosity
    Temp. Range,
    ° F
    Req. Power,
    hp
    Intake Connection
    Type
    Discharge Connection
    Type
    Ht.
    Lg.
    Wd.
    Dia.
    Lg.
    Ctr.-to-Base
    Lg.
    Each
    For 500 rpm to 2,100 rpm Motor Speed
    136026Not Rated50 to 1801/31/2 Female NPT1/2 Female NPT3 13/16"4 1/2"4 1/8"5/8"1 1/8"1 15/16"4281K210000000
    27.96026Not Rated50 to 1803/41 Female NPT1 Female NPT3 9/16"6 3/8"4 3/4"5/8"2 1/4"1 7/8"4281K23000000
     
    Repair Kits

    Air-Powered Constant-Flow-Rate Piston Pumps

    Image of Product. Front orientation. Piston Pumps. Air-Powered Constant-Flow-Rate Piston Pumps.
    Commonly called piston pumps, these are often used in high-pressure applications, such as hydrostatic testing of pipelines, tanks, and valves. Flow and outlet liquid pressure can be controlled by varying the air pressure. To calculate discharge liquid pressure, multiply the air pressure by the ratio shown in the table. Pumps are self-priming, which means they create a suction force to draw liquid upward to fill the pump chamber.
    Note: Pumps must be filled with liquid before use. They need a constant flow of liquid and cannot run dry.
    Flow
    Rate, gpm
    Air
    Pressure, psi
    Overall
    @ 0
    psi
    @ 3,000
    psi
    Max. ft. of
    Head, ft.
    Max. Discharge
    Pressure, psi
    Max. Viscosity,
    cP
    Min.
    Max.
    Air Consumption,
    scfm
    Air Connection
    (NPT)
    Intake Pipe
    Connection (NPT)
    Discharge Pipe
    Connection (NPT)
    Lg.
    Wd.
    Ht.
    Each
    86:1 Discharge Liquid to Inlet Air Pressure Ratio
    0.190.1728,76412,47010015145201/4 Female3/8 Female1/4 Female4 5/8"4"9"6770K43000000000
     
    28:1 Discharge Liquid to Inlet Air Pressure Ratio
    0.580.139,3654,06010015145201/4 Female3/8 Female1/4 Female4 5/8"4"9"6770K4100000000
     
    11:1 Discharge Liquid to Inlet Air Pressure Ratio
    4.763,6791,59510015145451/2 Female1 Female1/2 Female10 3/4"9 1/2"10 3/8"6770K2800000000
     
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