R Series Rotary Lobes

The R pump has been redesigned to meet the new revised 3-A standards and is ideal for the type of application where the metal rotored pump will not work effectively. When you need to strip clean your pump because the product will not wash out by using a normal CIP process such as meat processing or bakery doughs, the R pump overcomes this problem by its simple robust design. The R pump design utilizes a floating rotor without rotor nuts. Rotors are interchangeable and can only be fitted in one position due to a specially modified square shaft.

This simple and robust design allows for all sanitary parts to be changed in minutes without removing the pump from the line. The pumps are now fitted with an ‘O’ ring front cover gasket, making the routine maintenance even easier.

APV uses multi-lobe rubber rotors( twin lobe on the RO) as standard. These deliver very high efficiency for the handling of a wide range of difficult and abrasive products.

As a strip clean unit the simple rubber lip seal is front loaded for easy replacement, but a mechanical seal can be used if required. To facilitate the use of a mechanical seal, an extended shaft is used. This allows for the use of a double mechanical seal and a pressurized barrier fluid system. The seal can be easily replaced due to its cartridge type arrangement. All popular seal face materials are readily available.

For special applications a range of metal or plastic rotors in several different profiles can be supplied,which are ideal for abrasive or corrosive products.

R pumps can be fitted with enlarged rectangular inlets for metal and dough slurries. Additionally, if entrapped air is a problem, special de-gassing front covers can be used, enabling entrapped air to be removed prior to cooking or processing. If you have a problem with fitting a pump beneath your tank or hopper a front cover outlet can be supplied. For higher discharge applications a cover with outrigger bearings is available.

Pumps can be supplied with a variety of drive units, or complete with hoppers or auger feed units.