PH3000BXT - 3000 GPH, 115 / 230V

PH3000BXT - 3000 GPH, 115 / 230V

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PH3000BXT - 3000 GPH, 115 / 230V

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NEW Cruisair PH3000BXT Marine A/C Pump / Seawater Pump. Mechanical Seal, Air-Cooled Motor. Capacity: 3000 GPH @ 20', HP: 1/2, Power: 115 / 230V, 50/60 Hz, Inlet: 1 1/4" FPT, Outlet: 1" FPT, Weight: 33 lbs. 1-year warranty*.

Oberdofer Part Number: 109MB-10J36BJ-50/60 (Click Here to View)

Dometic MFG. #:

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Dometic/Cruisair PH 3000BXT Marine A/C Pump - Seawater Pump - 1-1/4" FPT X 1" FPT

Cruisair PH3000BXT

Dometic/Cruisair centrifugal pumps have a single rotating metal impeller. Liquid enters at the center and is thrown outward radially by centrifugal force. The impeller is not in contact with other pump parts resulting in quiet, efficient, pumping action. The flow produced is not positive which permits the discharge line to be shut off completely without danger of overloading motors or bursting lines.

Consequently, a relief valve is not required. The liquid flow varies directly as the pump speed—the higher the speed the greater the flow. Horsepower required varies directly as flow and pressure. Maximum horsepower is required with a wide open discharge line. This is the point of maximum flow. With a throttled discharge, the flow decreases at a greater rate than the pressure increases thereby requiring less horsepower at the higher pressures. This is known as an “unloading” feature of the pump.


  • Rugged Bronze Construction
  • A Standard in the Marine Air Conditioning Industry
  • Extremely Quiet Operation
  • O-Ring Housing seal eliminates gasket problems
  • Polytetrafluoroethylene (PTFE) Barrier Seal to protect motor bearings
  • Handles Contaminated Liquids
  • Discharge port orientation flexibility-8 positions
  • Mechanical Seal - Carbon/Ceramic, Nitrile - standard, Fluoroelastomer (S10) optional, Polytetrafluoroethylene (PTFE)(S11) optional
  • Pump Heads mount to standard footed nema 56J Jet Pump Motors
  • Shafts: 316 Passivated Stainless
  • Multiple motor options available
  • For Industrial Version - see Model 700 series

Liquids and Temperatures 

The special pump alloys used provide corrosion resistance to many liquids including water, water solutions, and a wide range of commercial chemicals. Questions as to the chemical compatibility of special liquids should be referred to the factory.

The pump uses a mechanical type shaft seal with a Nitrile rubber element. It is suitable for water, oils, and some mild solvents and it is limited to 212°F and 75 P.S.I. Fluoroelastomer (S10) seals and Polytetrafluoroethylene (PTFE) (S11) seals are available for severe solvents and difficult chemicals.

Viscous liquids with a maximum viscosity of 2000 Saybolt Seconds Universal can be pumped. However, when pumping viscous liquids as compared with water, a reduction in flow and pressure occurs and the required horsepower rate increases.

Liquids heavier than water require additional horsepower in direct proportion to the increase in specific gravity. Liquids contaminated with small solids or abrasives can be handled, but a reduction in mechanical seal life must be expected.

Suction Lift

These centrifugal pumps are not self-priming. They must be installed below the liquid level so that the liquid flows to the pump by gravity (flooded suction). However, if a foot valve is used at the beginning of the suction line and all air is bled from the pump by manual priming, the pump will lift on the suction side up to 15 feet. Such a system relies entirely on a non-leaking foot valve for starting capability.

Technical Specifications

Model PH3000BXT
Part Number 225500272
Flow Rate  3000 GPH
Power  1/2 HP
Phase Single
Voltage 115/230 V
Inlet 1 1/4" FPT
Outlet 1" FPT
Weight 33 lbs

Performance Curve




*1-year warranty on parts and labor.