Facts about the LPA® Pump

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LPA®-833-DS-075

In development, Model 833-DS (Dual Stage) SS LPA® pump. The design operating

Facts about the LPA® Pump

LPA® (Liquid Pressure Amplification) | Co2 | R290 | NH3 |HFO |

Facts about the LPA® Pump

875-SS-050-B

LPA® (Liquid Pressure Amplification) | Co2 | R290 | NH3 |HFO | HFC |

The LPA pump is a semi-hermetically sealed unit with important design features: The impeller floats in a revolving magnetic field and is the only moving part.The magnetic flux is supplied by an external motor with a magnetic coupling device. Because the motor is external to the system, a burnout cannot contaminate the system. The external placement of the motor eliminates any additional heat back into the system. In the unlikely event of motor failure, the motor can be replaced without the need to shut the system off or remove the refrigerant.

No need for variable drive or frequency control as the characteristics of all LPA pump ‘s are self unloading which means less power consumed and less cost.

Mechanical life exceeds 20 years of reliable and stable operation.

12 Responses to “ Facts about the LPA® Pump ”

  1. Frank says:

    Can the motor be removed without decanting the refrigerant charge?

  2. Engineering says:

    Yes, the motor is entirely separate from the pump housing. No shafts. Magnetically driven. No leaks.

  3. Wim Schmitz says:

    How does the pump adjust to a system with a wide range of capacity regulation, so there is a very wide range of flow needed.

  4. HY-SAVE Engineering says:

    Good day,

    All of our pumps are self unloading; if simulating the effects of closing the expansion valve; pumping head will increase and flow rate would reduce as with the motor power consumption.

    HY-SAVE Engineering

  5. Engineering says:

    Good day,

    Our range of LPA pumps are self unloading. Please contact us for specifics.

    HY-SAVE Engineering

  6. Stefan says:

    How much pressure can this boost if using for an organic rankine cycle with R134a? We are looking for 1:3 ratio boosting pressure up to about 150 psi. thanks!

  7. Engineering says:

    Stefan thanks for your mail.

    We do have a new mode LPA pump that can reach these pressures but not available until August this year.
    Other that that we would be of little use.

    Thanks.

  8. Benoit says:

    Do you have single phase 115 volts motor ?

  9. Engineering says:

    Single phase motors can be provided but are not carried in stock.
    Lead times are generally 5 to 7 weeks for out of stock items.

  10. Engineering says:

    Yes but expect a 5 to 7 week production lead time for single phase motors.

  11. On your CO2 pump what is your minimum required NPSH?

  12. admin says:

    Good day,

    We maintain 12″ at 50hz and 18″ at 60hz.

    Thank you.

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