The construction of the DW pump is as simple as possible in order to ensure quick and easy maintenance. There are two rotor types (piston and bi-lobe) available at 3 different versions: multi duty, high efficiency or NGA rotors. Standard elastomer material is EPDM. FPM and Isolast (perflouroelastomer) are also available.

Special applications can be configured for different usages.
Rectangular inlets are for extremely high viscosity products;
Thermal jackets can handle temperature-sensitive products by providing a constant temperature level;
Relief valve avoids pressure from getting too high.

Hygienic handling of fluids is a demanding task, but APV has the expertise and know-how to manufacture components that match any process requirements.

And because APV focuses on improving and sustaining our customers’ profitability, our products are found in the food, dairy, brewery, pharmaceutical, personal care, and chemical industries throughout the world.

You can count on sturdy performance and long life work with the HL Series pumps. The unique rotor attachment allows accurate rotor positioning and the ease of service; the rotor timing can be set easily; the flat cover allows convenience in cleaning; bearing arrangement is robust and require no shimming. All in all, this pump is designed with versatility and durability in mind.

The twin screw pump can handle up to high pressure of 375 psi/ 25.5bar. It features optimal seals for most applications, plus interchangeability when needed, and compliant design with 3-A, USDA, EU Machinery Directive and EHEDG.

Three screw pitch options for all models offer a wide selection of capacities, pressures, flow rate profiles, and particle sizes.

- Wide option is suitable for applications requiring low pressures with higher flow rate; or a need to accommodate larger particulates
- Medium option offers a balance in pressure and flow velocities between larger and smaller screw profiles
- Narrow option is suitable for applications requiring higher pressure with lower flow rates