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.

Hypro Pumps

Bronze Gear Pump W/Relief

BBV6

$877.00

1" Bronze Pedestal Gear Pump, light duty with relief valve. Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial applications, providing a near...

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Hypro Pumps

316 Stainless Steel Gear pump

GMSV6C7T

$1,959.63

Rotary Gear pump with motor. 316 Stainless construction, Ryton gears.

Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively unaffected by the back pressure in the discharge line. Shaft...

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Hypro Pumps

316 Stainless Steel Gear pump

GMSV6C3T

$1,799.44

Rotary Gear pump with motor. 316 Stainless construction, Ryton gears.

Use for pressure spraying, circulation of lubricants, tank / drum filling. Will handle water like liquids to very thick. Bi-rotational allows for flow direction reversal. Flush...

3HP 230/460V TEFC Learn More

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Hypro Pumps

316SS Gear pump end only

GMSV6C

$1,593.04

Rotary Gear pump PEO pump end only. 303 SS fasteners, Ryton gears.

Use for pressure spraying, circulation of lubricants, tank / drum filling. Will handle water like liquids to very thick. Bi-rotational allows for flow direction reversal. Flush po...

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Hypro Pumps

Cast Iron Pedestal Gear Pump

C6K

$1,634.69

Cast Iron Pedestal Gear Pump, light duty with grease zerks that requires greasing. NO relief valve.
Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and ...

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Hypro Pumps

Cast Iron Pedestal Gear Pump

C6V

$1,821.38

Cast Iron Pedestal Gear Pump 1"

without relief valve.

Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial applications, providing a nearly puls...

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Hypro Pumps

Bronze gear pump 12-24 gpm

B6

$3,250.33

Rotary Gear Pump. Bronze pedestal mounted gear pump. For oils, paint , inks and other lubricating liquids. Pump has packing along the shaft. Do not pulley drive. Has grease zerk fittings. Without Relief Valve, Seal Kevlar Packing, Bronze Spur G...

1" Pedestal pump Learn More

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Hypro Pumps

Bronze gear pump 24 gpm

BB6

$1,503.60

24 GPM Bronze pedestal mounted gear pump 1". For oils, paint , inks and other lubricating liquids. Pump has packing along the shaft. Do not pulley drive. Without Relief Valve, Seal Kevlar Packing, Bronze Spur Gear, Pump RPM 1725 Max.

For electri...

Bronze 1" Learn More

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Hypro Pumps

Bronze gear pump

GPBN5V

$1,658.72

20 GPM Bronze pedestal mounted gear pump. For oils and other lubricating liquids. Exellent for water based fluids. Ryton PPS spur gears provide quiet operation and chemical compatibility. No metal to metal contact. 1/2Hp to 2HP motor required dep...

1" Learn More

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Hypro Pumps

Rotary Gear pump only

MCN6VB

$5,266.34

Rotary Gear pump end. Cast Iron with 303 SS fastners, CI gears.
Adjustable relief valve designed for internal pressure relief, can be ported for either internal or external discharge. Do not operate the relief valve for more than one minute.

U...

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