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    8 Products

    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 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
     

    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
    Each
    Maintenance Kit for Pump with 25 gpm Max. Flow Rate4281K340000000
    Maintenance Kit for Pump with 11.5 gpm Max. Flow Rate4281K9400000

    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.
    Air
    Pressure, psi
    Overall
    Flow Rate
    @ 0 psi, gpm
    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
    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"6770K28000000000
     
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