FoodChunky jam

Supplying metered quantities of jam to a pasteurizer without crushing the berries (with cleaning-in-place requirement)

Existing issues

The existing pumps the customer was using for metered supply of jam with berries to the pasteurizer had the following issues:

  1. While there was a need for higher system pressure in order to improve sterilization effect, valves could not be used because there were solids in the jam.
  2. The current cleaning-in-place of the line was not at a satisfactory cleaning level.
  3. Seeds in the berries crushed by the pump were causing wear in parts, degrading the capacity of the system.


The Hygienic series Heishin PC Pump NHL-F was adopted as the solution as it offers the ability to be cleaned in place and can also keep the berries intact.
Another Heishin PC Pump capable of maintaining in-system pressure via pressure control was also installed on the exit side.

Benefits from the improvement

  • Berries mostly keep their shape and concerns about seeds causing wear were eliminated.
  • Equipment can now be cleaned in place to a satisfactory standard.
  • The customer is now able to maintain in-system pressure without the use of valves.

Flow chart

Related products

  • Hygienic Series NHL-F Standard sanitary pump model that supports a wide range of fluids from watery fluids to high-viscosity fluids.