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Cast iron rotary gear pump head with 1/4 inch NPT inlet, 125 psi rating

Dayton

Dayton 4KHC5 Rotary Gear Pump Head Trap, 1/4" NPT, 125 psi

SKU CH-ZY63-9F8W2 MPN 4KHC5

Cast-iron rotary gear pump head delivers 4.4 gpm at 100 psi with a 125 psi maximum rating

  • TypeDrain Components
  • Cast iron body withstands harsh fluids and heavy use
  • 125 psi maximum pressure handles demanding pumping tasks
  • 4 gpm flow rate at 100 psi moves liquid efficiently
  • Mechanical carbon/ceramic seal resists leaks and wear
  • Operates from 32 to 280 °F for wide temperature range

Pump Head for 56C Frame Motors

The Dayton 4KHC5 is a cast-iron rotary gear pump head built to mount on a 56C frame motor. It suits maintenance teams and OEMs who need a positive-displacement pump for lubricating oils or similar fluids up to 500 SUS viscosity.

1/4" NPT Ports and Mechanical Seal

The 1/4 inch NPT inlet and outlet thread directly into standard pipe fittings without adapters. A carbon-ceramic-stainless steel-FKM mechanical seal contains fluid at pressures up to 125 psi, while the 1/2 inch shaft and 3-1/2 inch shaft length match the motor face precisely.

4.4 gpm at 100 psi Flow Rating

At 100 psi the head delivers 4.4 gallons per minute, the key figure for sizing the circuit. Maximum suction lift is 3.5 feet and the operating window spans 32 to 280 degrees Fahrenheit, so the installer must verify Net Positive Suction Head and temperature limits before specifying this unit.

Highlights

  • Cast iron body withstands harsh fluids and heavy use
  • 125 psi maximum pressure handles demanding pumping tasks
  • 4 gpm flow rate at 100 psi moves liquid efficiently
  • Mechanical carbon/ceramic seal resists leaks and wear
  • Operates from 32 to 280 °F for wide temperature range

Specifications

TypeDrain Components
BrandDayton
Model4KHC5

Questions about this item

What is the maximum operating pressure for the 1/4" NPT connection?

The 1/4" NPT connection is rated for a maximum operating pressure of 125 psi.

Which motor frame is required for mounting this pump head?

This pump head is compatible with a 56C motor frame and has a 1/2 inch shaft outer diameter.

How is the mechanical seal installed and what is a common mistake?

The carbon/ceramic/stainless steel/FKM mechanical seal seats on the 1/2 inch shaft; a common error is damaging the seal faces during assembly.

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