MY CART 0item(s)

You have no items in your shopping cart.

Product was successfully added to your shopping cart.

Rotary Pumps - Gear, Flexible Impeller, Screw

These pumps have a set of rotating gears, flexible impellers, screw rotor or vanes connected to a driven shaft. Therefore most of these pumps incorporate a mechanical seal, packing or lip seal along the shaft at its back end in order to keep the fluid from leaking along the shaft. There are a few models, which are magnetically coupled and thus seal-less. Another type which is seal-less is the Peristaltic which uses a rotating roller assembly to compress a hose over a given arc length. These pumps are very reliable in pumping medium to thick liquids which typically are not handled by Centrifugal pumps and in applications where medium to high discharge pressures are needed at low flow rates. Varying the motor speed easily controls their output. Most units include some sort of built in relief valve, but those that do not must have one installed into the piping to prevent a dangerous over pressure condition. Not recommended for liquids with fine abrasives or thin non-lubricating liquids like water that will accelerate pump wear.Typical Positive Displacement Rotary pumps include helical gear, spur gear, lobe, progressive cavity, peristaltic, flexible impeller and sliding vane to name a few.

Rotary Pumps - Gear, Flexible Impeller, Screw

Set Descending Direction

   

Items 1 to 10 of 481 total

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  1. Marco Mate - Oil Transfer Pump UP14/Oil: Gear Pumps

    Marco Mate

    Oil Transfer Pump UP14/Oil

    M164-520-12

    Oil transfer gear pump, 12V DC.4.0 GPM Self-priming electric pump with helical bronze gears for transferring lubricating oils and viscous liquids. Nickel-plated brass body and stainless steel shaft. Particularly suitable for draining engine sumps ...

    4gpm 290GPH 12v
  2. Oberdorfer - N994 12v DC Gear Pump: N Oberdorfer Gear Pumps Bronze

    Oberdorfer

    N994 12v DC Gear Pump

    N994H-H75

    12v DC Gear Pump. Pump housings and gears are made of top quality bronze;
    shafts are from stainless steel 303. Bearings are designed of high
    performance carbon-graphite material selected for wear resistance
    and long service life.

    12 volt Gear ...

    1HP 12VDDC
  3. Marco Mate - Oil Transfer Pump UP6: Gear Pumps

    Marco Mate

    Oil Transfer Pump UP6

    M164-080-12

    12v DC Oil transfer gear pump. GPM Self-priming electric pump with helical bronze gears for transferring lubricating oils and viscous liquids. Nickel-plated brass body and stainless steel shaft. Particularly suitable for draining engine sumps wit...

    4gpm 290GPH 12v
  4. Oberdorfer - N992 Pump & Mtr.: N992 Gear Pumps

    Oberdorfer

    N992 Pump & Mtr.

    N992-F41

    Bronze gear pump. Pump housings and gears are made of top quality bronze; shafts are
    from stainless steel 303. Bearings are designed of high performance
    carbon-graphite material selected for wear resistance and long
    service life. Motor may not ...
    1/3HP 115v
  5. Oberdorfer - N993 Bronze Pump & Motor: N Oberdorfer Gear Pumps Bronze

    Oberdorfer

    N993 Bronze Pump & Motor

    N993M-J07


    Bronze Gear pump. Pump housings and gears are made of top quality
    bronze; shafts are from stainless steel 303. Bearings are designed
    of high performance carbon-graphite material selected for wear
    resistance and long service life.

    Gear pumps are p...

    1/2 HP 115v
  6. Stenner - Adj. mechanical feed rate, Dual head Dual control 50GPD: 100 Dual Head Peristaltic Pumps

    Stenner

    Adj. mechanical feed rate, Dual head Dual control 50GPD

    100MDC5


    G.H. Stenner & Company offers a complete line of highly
    reliable peristalic chemical feeders. Use for grease trap enzymes,
    algaecide, biocide, biocidal, antimicrobial, chlorination -
    chlorine sanitizers and disinfectants injection, cooling towers...
  7. Stenner - Peristaltic Injection Pump 40GPD: 85 Peristaltic Metering pump

    Stenner

    Peristaltic Injection Pump 40GPD

    85MJL3A1S

    PATENTED MECHANICAL CONTROL – Stenner’s
    unique control mechanism allows the peristaltic metering injection
    pump’s output to be scaled from. 5% to 100% with the
    simple turn of a dial. This eliminates the need for troublesome
    electronic timers.
    ...
    85M3-120-1/4 85m3
  8. Stenner - Single Head Adjustable Peristaltic Pump: 85 Peristaltic Metering pump

    Stenner

    Single Head Adjustable Peristaltic Pump

    85MJL1A1S


    Peristaltic Pump – Stenner’s unique
    control mechanism allows the peristaltic metering injection
    pump’s output to be scaled from. 5% to 100% with the
    simple turn of a dial. This eliminates the need for troublesome
    electronic timers.

    PERISTALTIC AD...

    85M1-120-1/4
  9. Stenner - High  Pressure Peristaltic Pump 40GPD: 85 Peristaltic Metering pump

    Stenner

    High Pressure Peristaltic Pump 40GPD

    85MHP40-120-1/4


    PATENTED MECHANICAL CONTROL – Stenner’s
    unique control mechanism allows the pump’s output to
    be scaled from. 5% to 100% with the simple turn of a dial. This
    eliminates the need for troublesome electronic timers.

    HIGH PRESSURE HANDLING – Stenner m...

  10. Oberdorfer - N993 Pump & motor: N Oberdorfer Gear Pumps Bronze

    Oberdorfer

    N993 Pump & motor

    N993RM-J07


    Pump housings and gears are made of top quality bronze; shafts are
    from stainless steel 303. Bearings are designed of high performance
    carbon-graphite material selected for wear resistance and long
    service life.

    Gear pumps are positive displaceme...

    1/2HP 115/230v Relief Vavle
Set Descending Direction

   

Items 1 to 10 of 481 total

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5