High Viscosity System (HVS)


Wetted metal details stainless steel AISI 316L electro polished or sandblasted
Liquid contact
surfaces roughness
Ra < 1.6 (standard)
(Ra < 0.8 and 0.5 as option)
Centre block (not wetted) PP, PP conductive, aluminium
Diaphragms PTFE, PTFE with white back, EPDM, white EPDM, white NBR, NBR (non FDA)
Valve balls PTFE, AISI 316, Ceramic, SiC, EPDM (non FDA), NBR (non FDA)
Air valve Brass (std.), stainless steel AISI 316L or PET with NBR (std.), EPDM or FKM O-rings
Housing stud bolt A4-80

The HVS Drum Unloading System is designed for handling highly viscous liquids in industrial as well as hygienic applications. The system is emptying substances transported in barrels, such as:

  • tomato paste
  • coconut oil
  • tahini oil
  • resins
  • fruit
  • vegetable pulps

While the pump is operating, the actuators move the pump down and the liquid is pushed into the pump chambers for easier pumping into the discharge line.

The system is custom designed for best efficiency and safety in the process of pumping high viscosity, paste-like, liquids out of transport drums.

Fast facts

  • Max. capacity: 590 l/min
  • Volume per stroke: 2 300 ml
  • Max discharge pressure: 8 bar

Typical applications

Industry Example of application
Food & Beverage tomato paste, caramel, fruit and vegetable concentrate, peanut butter, mayonnaise, nougat paste, chocolate/fudge, glycerine, oil
Cosmetics & Pharma cosmetic and pharma vaseline, ointment, cream & lotion, semi-solid wax/paraffin, glycerine, oil, lip gloss, mascara, facial cleanser