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INTERNAL GEAR PUMPS
Gear Pumps
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Internal gear pumps are used for a wide range of viscosity applications because of their low speeds. Internal gear pumps work great where suction conditions call for a gear pump with small inlet pressure requirements. In addition to low speed, internal gear pumps offer a smooth flow. Internal gear pumps are self-priming and can run dry for short periods. Because internal gear pumps have only two moving parts, they are reliable, simple to operate, and easy to maintain.
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1-8 GPM
Internal Gear Pump Series DIU Round Hub
Five sizes of Haight gear pumps in the round hub DIU-Series. All sizes are available with an optional bolt-on relief valve which can function in either the return to suction, or return to tank mode. Compact rugged, and easy to maintain, these pumps are ideally suited to close-coupled mounting, or direct mounting to the motor.
Dual Pumps
Dual Pumps on a common shaft are available in 15 possible flow combinations, up to 8gpm flow capacity, for each pump. Dual pump designs save valuable space and cost for system designers.
10-40 GPM
Internal Pump Series DIU Square Flange
Sizes 10, 15, 20, 24, 30, & 40 gpm
We offer six sizes of Haight pumps in the square flange DIU-Series. All sizes are available with a bolt-on Relief Valve which can function in either a return to suction, or return to tank mode. All DIU-Series pumps are interchangeable with earlier D & DR Series pumps.
Compact, rugged, and easy to maintain, these pumps are ideally suited to close-coupled mounting to the motor or footed mounting. Haight Pumps bolt-on footed brackets match standard NEMA motor height eliminating pump or motor shimming. Each bracket size is designed to align the pump and motor shaft heights without shim blocks.
Internal Pump Series US - Stainless Steel Pumps
We've combined our versatile Universal Series pump designed with stainless steel and corrosion resistant materials to meet the needs of our customer's ever changing process systems.
Key Features
- "Gear within a Gear" Design for Quiet Operation
- Built-in Gear Reduction, Fully Supported, Through-Shaft Design, utilizes Standard Motor Speeds
- UniverSeal built in Shaft Seal Flexibility
- Only Two Moving Parts reduces Maintenance and Wear
- Closed Coupled or Foot-Mounted Bracket Designs
- Readily Accepts Magnetic Drive Option
- Inlet/Outlet Ports accept 1",1.25" and 1.5" NPT and 150# Flange Connections
- 250 PSI Discharge Capability
- Non-Metallic Rotor eliminates galling problems, even with thin fluids including water
- Integral Relief Valve with "No Leak" Adjustment, and Tank Return Operation Capability
Internal Pump Series UB - Bronze Pumps
We've combined our versatile Universal Series pump designed with bronze and corrosion resistant materials to meet the needs of our customers ever changing process systems. Available in 24, 30, 40, 44, 54, 60, 70 and 80 gpm.
Key Features
- "Gear within a Gear" Design for Quiet Operation
- Built in Gear Reduction, Fully Supported, Through-Shaft Design, utilizes Standard Motor Speeds
- UniverSeal built in Shaft Seal Flexibility
- Only Two Moving Parts reduces Maintenance and Wear
- Closed Coupled or Foot Mounted Bracket Designs
- Readily Accepts Magnetic Drive Option
- Inlet/Outlet Ports accept 1.5" NPT and 150# Flange Connections (24-40gpm) and 2" NPT 150# & 300# Flange Connections (44-80gpm)
- 250 PSI Discharge Capability
- Non- Metallic Rotor eliminates galling problems, even with thin fluids including water
- Integral Relief Valve with "No Leak" Adjustment, and Tank Return Operation Capability
Internal Pump Series UB - Bronze Pumps
We've combined our versatile Universal Series pump designed with bronze and corrosion resistant materials to meet the needs of our customers ever changing process systems. Available in 24, 30, 40, 44, 54, 60, 70 and 80 gpm.
Key Features
- "Gear within a Gear" Design for Quiet Operation
- Built in Gear Reduction, Fully Supported, Through-Shaft Design, utilizes Standard Motor Speeds
- UniverSeal built in Shaft Seal Flexibility
- Only Two Moving Parts reduces Maintenance and Wear
- Closed Coupled or Foot Mounted Bracket Designs
- Readily Accepts Magnetic Drive Option
- Inlet/Outlet Ports accept 1.5" NPT and 150# Flange Connections (24-40gpm) and 2" NPT 150# & 300# Flange Connections (44-80gpm)
- 250 PSI Discharge Capability
- Non- Metallic Rotor eliminates galling problems, even with thin fluids including water
- Integral Relief Valve with "No Leak" Adjustment, and Tank Return Operation Capability
44-80 GPM
Internal Pump Series DIU Double Pumps
Sizes 44, 54, 60, 70 & 80 gpm
Five sizes of pumps in the Haight Double pump series are offered. Available with a variety of optional seal, bearing and rotor materials. The Double Series offers exceptionally compact design, plus low shear and noise characteristics. Compact, rugged and simple, these pumps are ideally suited for close-coupled mounting, which eliminates the need for expensive gear boxes, and prevents coupling alignment problems.
Internal Pump Series UB - Bronze Pumps
We've combined our versatile Universal Series pump designed with bronze and corrosion resistant materials to meet the needs of our customers ever changing process systems. Available in 24, 30, 40, 44, 54, 60, 70 and 80 gpm.
Key Features
- "Gear within a Gear" Design for Quiet Operation
- Built in Gear Reduction, Fully Supported, Through-Shaft Design, utilizes Standard Motor Speeds
- UniverSeal built in Shaft Seal Flexibility
- Only Two Moving Parts reduces Maintenance and Wear
- Closed Coupled or Foot Mounted Bracket Designs
- Readily Accepts Magnetic Drive Option
- Inlet/Outlet Ports accept 1.5" NPT and 150# Flange Connections (24-40gpm) and 2" NPT 150# & 300# Flange Connections (44-80gpm)
- 250 PSI Discharge Capability
- Non- Metallic Rotor eliminates galling problems, even with thin fluids including water
- Integral Relief Valve with "No Leak" Adjustment, and Tank Return Operation Capability
E- Series
The E - Series pumps are an economical, high performance modification of our proven D-Series model. These pumps are particularly well suited for use in direct drive, hub mounted configurations where size, weight, and cost are crucial performance criteria in an application. The rugged simplicity of the E - Series is proven thousands of times every year in high temperature applications throughout the world. Available with limited option selection, contact your local Distributor for additional information.
G- Series
The G - Series pumps are an affordable, high performance design series which utilizes the dynamic crescent, Gerotor gear configuration. This internal gear configuration offers exceptional suction capability, and compact size at a competitive price. Currently available in two sizes, with limited options, these pumps are physically interchangeable with existing D and E series pumps.
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Internal Pump Series DIU
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