Haight 1U Internal Gear Pump with Viton Lip Seal – No Relief Valve
The Haight 1U internal gear pump is engineered for dependable fluid transfer in demanding industrial environments. Built with durable ductile iron construction and equipped with a Viton lip seal, this compact positive displacement pump delivers reliable performance across lubrication, fuel handling, hydraulic, chemical, and OEM processing applications. Its “gear within a gear” internal design promotes smooth operation, efficient flow control, and reduced wear over extended operating cycles.
Designed without an integral relief valve, the Haight 1U pump offers installation flexibility for systems that already incorporate external pressure protection. The self-priming design supports efficient startup and dependable fluid movement, while the rugged steel shaft and gear components help maintain long-term durability in continuous-duty industrial operations. Viton sealing compatibility also makes the pump suitable for elevated temperatures and selected chemical fluids.
Compact and easy to maintain, the 1U series pump is commonly used in machine manufacturing, lubrication systems, hydraulic equipment, fuel transfer, food processing support systems, soap production, adhesive transfer, and industrial fluid circulation applications.
Key Features
- Internal “gear within a gear” positive displacement pump design
- Durable ductile iron housing construction
- Viton lip seal for enhanced chemical and temperature resistance
- Self-priming operation with strong suction capability
- Compact footprint for OEM and industrial installations
- Steel shaft and steel gear construction for durability
- Quiet and efficient rotary pumping performance
- No integrated relief valve for flexible system configuration
- Reversible flow capability depending on installation setup
- Easy maintenance and serviceability design
Applications
- Industrial lubrication systems
- Hydraulic equipment fluid transfer
- Fuel and petroleum product handling
- Machine tool coolant circulation
- Adhesive and ink transfer
- Soap and detergent processing
- Chemical fluid transfer
- Food and beverage process support systems
- Manufacturing and OEM equipment integration
- Industrial circulation and transfer systems
Specifications
- Pump Type: Internal Gear Pump
- Pump Design: Positive Displacement Rotary Gear Pump
- Construction Material: Ductile Iron
- Shaft Material: Steel
- Gear Material: Steel
- Rotor Material: Iron
- Seal Type: Viton Lip Seal
- Port Size: 3/4 in. NPT inlet and discharge
- Rated Capacity: Approximately 1 GPM
- Vacuum Capability: Up to 27 inches Hg
- Pump Configuration: Pump End Only
- Relief Valve: Not Included
- Operating Style: Self-Priming
- Mounting Compatibility: Close-coupled or bedplate mounting available
FAQ
What fluids can the Haight 1U pump handle?
The Haight 1U pump is commonly used for petroleum products, lubricants, oils, hydraulic fluids, chemicals, soaps, inks, adhesives, and other industrial liquids with suitable viscosity ranges.
What is the advantage of a Viton lip seal?
Viton lip seals provide improved resistance to heat, chemicals, solvents, and demanding industrial fluids compared to standard Buna-N seals.
Is the Haight 1U pump self-priming?
Yes. The pump is designed for self-priming operation and can develop substantial vacuum capability for fluid transfer applications.
Can the pump run in reverse direction?
Yes. The internal gear design allows directional flexibility depending on installation and piping configuration.
Does this model include a relief valve?
No. This version is supplied without an integral relief valve, making it suitable for systems already using external pressure protection.
What industries commonly use this pump?
Industries include manufacturing, chemical processing, lubrication systems, hydraulic equipment, food processing support operations, automotive manufacturing, and industrial OEM systems.
Is the Haight 1U suitable for continuous industrial operation?
Yes. Its rugged ductile iron body and steel internal components are designed for dependable continuous-duty industrial service.
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