Manufacturers Edge-KoolAir Pump

Farmingdale,  NJ 
United States
  • Booth: 1-604


KOOLAIR PUMP                                                          Marine HVAC Coolant Pump 

We’ve been in the Fluid Handling Equipment industry for over 40 years and we’ve seen and contributed a lot to the evolution of pumps for a wide range of applications. So when our customers complained about melted marine AC coolant pumps and the problems they caused, we came up with a solution.

We knew the solution was ‘Run-Dry Protection’ so we manufactured a marine AC coolant pump that could withstand thermal overload in the absence of a liquid flow. With a few design changes, some upgrades in materials, and testing, we created the KoolAir HVAC Cooling Pump.

A KoolAir Pump is a marine HVAC coolant pump that does not get damaged when overheated in the absence of a liquid flow. Most notably, when strainers become clogged, the KoolAir Pump will run for several hours before shutting down. When it cools down, it resumes operations as normal.

Brands: Koolair Pumps, Chugger Pump, AquaTruck Pump & ARM Scanners


  • PM300-12
    KoolAir Pump (PM300-12), 12V Brushless DC Motor with Speed Control (RMB196.02). Continuous Duty. Ceramic Shaft. 1/2" NPT Connection. (Max Flow Rate: 300 GPH @ maximum 30 ft. head) 1.5M - Cable Length. (1 LBS.)...

  • KoolAir Pump (PM300-12), 12V Brushless DC Motor with Speed Control (RMB196.02).

    Continuous Duty. Ceramic Shaft. 1/2" NPT Connection. (Max Flow Rate: 300 GPH @ maximum 30 ft. head) 1.5M - Cable Length. (1 LBS.)

  • PM500 Series Marine HVAC Koolair Pumps
    Koolair PM500-115 Magnetic Drive Pump (5011370B), 3/4"FPT Inlet 1/2"MPT Outlet, Fully Submersible with run-dry protection. 1/20 HP 115 volt 50/60HZ Epoxy coated Submersible Motor, ETL listed, ISO 8846 Marine Ignition Protected (10lbs)....

  • Description

    The Koolair PM500-115 is a completely submersible sealless centrifugal magnetic drive marine HVAC pump. The model generates a maximum flow of 8.5 gallons per minute and furthermore a maximum head of 19 feet at 25 PSI. The PM500-115 is also ISO 8846 Marine Ignition Protected.

    Replaces March LC-3CP-MD Pump with a 115-Volt motor.

    500 GPH (Gallons Per Hour). 

    Features & Benefits Of Our PM500 115 Marine Coolant Pumps

    • To withstand thermal overloads without failure, the pump has run dry protection. Finally, when cooled, the pump will resume operating normally.
    • Polypropylene, Buna N and Ceramic Magnet make up the wet end materials exposed to liquids. When submerged, Epoxy, Stainless Steel, Polysulfone, and also the Cord will come in contact with the solution.
    • The inlet connection is a ¾” female pipe thread and the outlet is ½” male pipe thread.
    • Includes fully integrated, heavy-duty marine base and also the original base in contrast to other pumps.
    • The motor is a 1 Phase 115V, .05 Horsepower motor, running on either 50 or 60 HZ.
    • The pump is not self-priming and requires flooded suction.
    • Maximum internal pressure is 25 PSI and the maximum liquid temperature is 130 Fahrenheit or 54 Celsius.

    PM500 - Product Specifications

    Attribute Information
    Weight 8.5 lbs
    Dimensions 9 × 8.25 × 6.75 in
    Maximum Flow

    8.5 GPM (31 LPM)

    Maximum Head

    19 Feet of Head @ 8.2 PSI

    Maximum Internal Pressure

    25 PSI

    Maximum Liquid Temperature

    130° F (54° C)


    3/4″ FPT


    1/2″ MPT


    50/60 Hz


    115 Volt


    Single Phase (1 PH)






    1/20 HP




    • ETL Listed
    • UL Listed
    • ISO 8846 Marine Ignition Protection.
    • NMMA, USCG and SAE J1171:2016.

    The magnetically driven PM500-115 volt pump with no shaft seal is our core model. In open-air or furthermore, fully submerged, the PM500 pumps, as a result, offers complete moisture protection due to being epoxy coated. When re-assembling the pump for service also make sure all “O” Rings are properly seated.


    Most commonly used on your boat or yacht for marine air conditioning while circulating seawater.

    Koolair Pumps | Run Dry Protection To Keep You Cool.

    Limited Warranty Statement

    Koolair Pumps are guaranteed only against defects in workmanship or materials for a period of one year from date of manufacture while pumping water.

    Packed weight is 8.5 pounds. Please see our datasheet similarly for flow and curves. Look under the additional information tab to find mechanical specifications.

    SKU:  PM500-115

    UPC: 852575006006

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