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Small brass and bronze machine tool pump with cylindrical housing and 3-foot cord

Dayton

Dayton 4JPG5 Machine Tool Pump 1/25 HP 230V 7.1 GPM

SKU CH-3ZXZ-YDA8R MPN 4JPG5

A three-phase machine-tool coolant pump delivering up to 7.1 gpm with a 7.8 ft maximum head and 3 ft cord

  • TypeDrain Components
  • Three-phase 230 V operation suits industrial coolant systems
  • 1/25 hp motor delivers 7.1 gpm maximum flow for steady circulation
  • Brass and bronze housing with bronze impeller resists coolant corrosion
  • 5 gpm at 5 ft head maintains pressure through tooling passages
  • 6 in immersion depth and 3/8 in NPT ports simplify machine mounting

Industrial Coolant Pump 1/25 HP

The Dayton 4JPG5 is a three-phase machine tool pump rated at 1/25 horsepower and 230V AC. It delivers up to 7.1 gpm of water at open flow and 5.5 gpm at 5 ft of head. Brass and bronze housing with a bronze impeller suits coolant circulation in milling, turning and grinding equipment.

Three-Phase 230V Supply Limits

Operation requires a 230V three-phase source and draws 0.6 A nameplate current. The 3 ft cord restricts placement unless extended with suitably rated cable. Maximum immersion depth is 6 in, so the pump must sit close to the fluid surface in the sump or tank.

Replaces Smaller Single-Phase Units

Builders upgrading from fractional single-phase pumps gain steadier torque and cooler running on three-phase power. The jump is worthwhile when the machine runs long cycles and the 7.8 ft maximum head meets the system pressure drop. It does not suit applications needing deeper immersion or higher flow rates.

Highlights

  • Three-phase 230 V operation suits industrial coolant systems
  • 1/25 hp motor delivers 7.1 gpm maximum flow for steady circulation
  • Brass and bronze housing with bronze impeller resists coolant corrosion
  • 5 gpm at 5 ft head maintains pressure through tooling passages
  • 6 in immersion depth and 3/8 in NPT ports simplify machine mounting

Specifications

TypeDrain Components
BrandDayton
Model4JPG5

Questions about this item

How do I choose between the listed flow rates for this pump?

The maximum flow rate is 7.1 gpm at zero head. At 5 ft of head the rate drops to 5.5 gpm. Choose based on the actual head your system will impose.

What does the 1/25 hp rating mean when the pump is installed in a machine tool?

It delivers a maximum flow of 7.1 gpm and a maximum head of 7.8 ft, drawing 0.6 amp at 230 V three-phase.

The pump uses 230 V three-phase — what practical limit does that place on wiring?

The motor draws 0.6 amp, so a standard three-phase 230 V supply with a 3 ft cord is sufficient; no higher-voltage infrastructure is needed.

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