I Series Self-Priming, Solids-Handling Pumps

Rugged self-priming, solids-handling trash pumps for industrial applications, with external shimless adjustment and service-focused access to primary wear components.

Choose an I Series model to view specifications, dimensions, and technical details.

I Series Models

I-3

I-3

3-inch self-priming, solids-handling pump.

View I-3
I-4

I-4

4-inch self-priming, solids-handling pump.

View I-4
I-6

I-6

6-inch self-priming, solids-handling pump.

View I-6
I Series Pump

Built for Industrial Applications

I Series pumps are self-priming, solids-handling trash pumps used in industrial applications. Their self-priming design allows the pump to be mounted above the liquid being pumped, helping keep inspection and maintenance access outside the wet well or process area.

Typical applications include:

  • Steel mills
  • Paper mills
  • Mining
  • Food and beverage
  • Energy
  • Manufacturing
  • Industrial waste handling
  • Solids-laden liquids
I and I-S Series Impeller

Solids-Handling Impeller Design

I Series pumps use a multi-vane, semi-open solids-handling impeller. Pump-out vanes on the impeller shroud help reduce foreign-material buildup behind the impeller while reducing pressure on the seal and bearings.

The I Series is designed to handle solids up to 1-1/8 inches in diameter, depending on pump model.

Rotating assembly and cartridge seal

Designed for Easier Maintenance

I Series pumps are designed with maintenance access in mind. Because they are self-priming, they can be mounted above the liquid being pumped, and service can be performed using common hand tools without disconnecting the piping. Accessible components include:

  • Impeller
  • Mechanical seal
  • Wear plate
  • Check-valve flapper

The rotating assembly can be removed without disturbing the pump volute or piping. Pusher bolts assist with removal, and a spare rotating assembly can be installed to help reduce downtime.

The mechanical cartridge seal is a double-floating, self-aligning, oil-lubricated assembly designed to simplify seal service and replacement while maintaining proper alignment.

External Shimless Adjustment

All I Series models use an external shimless rotating-assembly adjustment that allows the clearance between the impeller and wear plate to be adjusted externally.

The adjustment does not disturb the working height of the seal assembly or the impeller back clearance.

This feature is used on the I-3, I-4, and I-6.

I-Series Shimless Adjustment (2)

 

Standard Features

I Series pumps include features designed for solids handling, serviceability, and dependable industrial operation:

  • Multi-vane, semi-open solids-handling impeller

  • Solids handling up to 1-1/8 inches, depending on model

  • Double-floating, self-aligning, oil-lubricated mechanical cartridge seal

  • Tungsten titanium carbide seal faces

  • Bearing protection

  • Removable rotating assembly

  • Removable clean-out cover

  • External shimless impeller-to-wear-plate adjustment

  • Suction flapper check valve

  • Standard NEMA motor compatibility

  • Speed and impeller trim options for application requirements

Materials of construction cross-section (1)

Package Configurations

I Series pumps are available in base-mounted package configurations to support different installation requirements.

Available configurations identified in All Prime literature include:

  • Horizontal V-belt drive
  • Vertical V-belt drive
  • Direct-coupled package units

Find the Right I Series Pump

Pump selection should be based on the operating conditions of the application, including:

  • Required flow
  • Total dynamic head
  • Solids size
  • Fluid characteristics
  • Suction conditions
  • Materials of construction
  • Pump speed
  • Impeller trim
  • Drive arrangement