Grundfos JP PM Self Priming Jet Pump With Pressure Manager

Product Code: N/A

Grundfos JP PM Self Priming Jet Pump With Pressure Manager

Grundfos JP PM Booster provides the comfort of constant water pressure with automatic start and stop controlled according to consumption by the intelligent pressure manager. JP PM includes dry-running protection that automatically stops the pump in case of dry running.

This means lower risk of pump damage and lower maintenance costs. The anti-cycling function will stop the pump in time in case of a minor leakage in the system, or if a tap has not been closed completely. When cycling occurs, the pump stops, and an alarm will be indicated. A non-return valve for backflow prevention is already integrated.


JP PM consists of a Grundfos JP pump and a Grundfos Pressure Manager PM 1. JP pump is a self-priming, single-stage centrifugal jet pump. The jet pump has excellent suction capacity and is designed for long and trouble-free operation. The built-in ejector with guide vanes ensures optimum self-priming properties. The pressure manager starts the pump at 1.5 bar and the pump keeps running as long as there is flow.

The design is robust and built upon corrosion-free materials to ensure a long lifetime. This booster set ensures optimum self-priming properties, featuring a suction-lift up to 8 meters. The self-priming pump also ensures a stable operation as is it able to lift liquid from below the inlet level and can handle a mix of air and liquid until the pump reaches a fully-primed pumping condition.

The JP pump has built-in thermal protection, which immediately stops the pump if it overheats. The motor is air cooled and equipped with oversized, sealed, greased-for-life ball bearings to ensure silent operation and minimum service.


The boosters are suitable for domestic water supply, where pressure boosting and self-priming is needed.

  • Domestic ground water intake
  • Domestic water pressure boosting
  • Domestic rainwater harvesting

The product can be used in a wide variety of applications, such as these:

  • single- and two-family houses, boosting the pressure of water coming from a break tank, roof tank or a well
  • garden irrigation
  • car wash
  • small-scale agriculture and horticulture
  • light commercial applications


  • Self-priming, featuring a suction lift of up to 8 m
  • 1″ (25mm) Suction and Discharge
  • Robust design and corrosion-free materials for a long lifetime
  • Automatic start/stop according to consumption
  • Dry-running protection to avoid damage of the pump
  • Anti-cycling for leakage detection to prevent overheating and save energy
  • Integrated non-return valve
  • Status indication: power on, pump running, alarm
  • Rotary outlet connection for easy adaption to local pipe system.


All Grundfos products come with a 2-year warranty that fully complies with legal requirements.

The warranty covers product and material defects which are not the results of normal wear and tear for a period of 24 months from the date of delivery. The warranty period may not, however, exceed 30 months from the date of production.


Model NumberModel Name
99463898JP 3-42 PM1 – 0.42kW
99463899JP 4-47 PM1 – 0.56kW
99463900JP 4-54 PM1 – 0.75kW
99463901JP 5-48 PM1 – 1.01kW

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