Over half a century of excellence in designing and manufacturing internal gear pumps, external gear pumps, and positive displacement pumps for the OEM and process market. Haight Pump prides itself on its outstanding lead time and quality customer service.
Gear Pump Features
Haight Gear Pumps are self-priming and will develop up to 27" of vacuum. NOTE: depending upon actual application conditions, it is sound engineering practice to keep vacuum to a minimum.
Although suction conditions are a factor in determining pump speed, normally for liquids with viscosity's over 2000 SSU, reduced speeds and larger line sizes are recommended to avoid cavitation and diminished pump capacity.
| Capacity Range | 1 GPM to 80 GPM |
| Viscosity Range | 32 SSU to 500,000 SSU |
| Pressure Range: Non Lubricating Lubricating |
100 PSI 650PSI* |
| Temperature Rating | -80°F to 620°F* |
HAIGHT PUMP - STANDARD OPTIONS
Bearings: Grammix iron bearings are standard.
Following are optional:
DU- Used mainly for higher pressures (above 100 psi.) or where little lubrication is available.
Carbon Graphite - Standard bearings in corrosion resistant gear pumps. Used in standard construction for higher temperatures, solvents, or acid pumping when standard bearings aren't compatible.
Bronze - Cost effective self-lubricating material for pressures below 150 PSI.
Seals: Buna-N lip seal is standard.
Following are optional:
Viton Lip Seal - Suitable for temperatures to 400oF and some solvents and acids.
Teflon Packing - Used for higher temperatures and liquids which are not compatible with either Viton or Buna N.
Grafoil Packing - Suitable for use with heat transfer fluids to 585oF.
Mechanical Seals - John Crane type 21 with Buna-N, Viton, EPR, or neoprene elastomers. John Crane type 9 available with Teflon or Kalraz sealing elements for high temperature. Type 2 or Type 2B available for pressures exceeding 250 PSI.*
Mounting Configurations:
Bedplate, close-coupled, and hub mount are standard configurations.
Special designs available upon request.
Outboard Ball Bearing: Used to provide extra stability for belt drive or PTO assemblies.
Rotor Gears: Cast iron rotor is standard.
Following is optional:
Delrin - Used with non-lubricating liquids, where noise reduction is desirable, or with abrasive fluids as a sacrificial member.
Teflon - Alternative material for highly corrosive liquids which are not compatible with Delrin.
Ni-Resist #2 - Used in standard construction with mildly corrosive liquids.
*High temperature/high pressure applications: require substantially more documentation than normal applications (400oF and/or 150psi). Haight has a number of possible solutions available to meet your specific requirements, which can be easily added to our Ductile Iron Universal pump design.
