Joint Types

The right joint for every application!

Joints are an important factor influencing the operating safety and the life cycle costs of a NEMO® Pump. The right joint selection will depend on the application, the operating conditions and the substances to be conveyed, as well as the pump model.

NEMO® B Universal Pin Joint

NEMO® Universal Pin Joints are the standard joint for NEMO® industrial pumps because of their simplicity and outstanding reliability. This joint delivers a very long service life as a result of its sturdy dimensions, oil-filled design and NEMO® SM® seal. At extremely high temperatures, and for products for which elastomers are not suitable, the NEMO® Pin Joint can alternatively be used without a seal. The NEMO® Pin Joint is comprised of a small number of components and can therefore be easily disassembled for maintenance.

NEMO® V Pin Joint

The operational characteristics of the NEMO® V Pin Joint are similar to those of the B Pin Joint. The only difference lies in the hardened bushings, which are fitted into the boreholes of the coupling rod and the rotor/drive shaft head. These can be easily removed for maintenance work. This joint is also oil-filled and encapsulated with a NEMO® SM® seal for long service life. The NEMO® V Pin Joint has only a few components for fast disassembly and maintenance.

NEMO® H Hygienic Pin Joint

This open, patented pin joint was specially developed for use in hygienic pumps. It is free of crevices and dead space, and is polished for easy cleaning. The joint assembly has few components and can therefore be quickly dismantled for maintenance. The NEMO® H Hygienic Pin Joint satisfies the requirements of the 3-A Sanitary Standards of the USA.

The F NEMO® Flextec Flexible Rod

This patented flexible rod made of special steel is highly corrosion-resistant, wear-free and maintenance-free because no components move against each other as in other joint types. Neither lubricants nor seals are needed, which enables the F NEMO® Flextec Flexible Rod to be used in high pressure and high temperature conditions. Since it is free of crevices and dead space, this flexible rod is a good choice for conveying highly sensitive products and can be used for aseptic conditions. The F NEMO® Flextec Flexible Rod satisfies the requirements of the 3-A Sanitary Standards of the USA.

The NEMO® K Joint

The patented NEMO® K Joint was designed for extremely high long-term stress. It is particularly well-suited for industrial applications requiring many pump start-ups over a short period of time. The NEMO® K Joint is kinematically and precisely defined in such a way that the torque and axial loads are decoupled and borne by its various mechanical elements. In addition, this joint is lubricated and sealed hermetically by two seals that are resistant to the lubricant and the pumped product. The double sealing ensures process stability. Filling the space between the two seals with oil allows use of the joint at ambient pressures of up to 180 psi or 12 bar.

NEMO® Z Double Seal Pivot Joint

For greater flows and/or pressures (from bearing block size NM125SY upward), NEMO® industrial pumps are equipped with kinematically and precisely defined cartridge-type double seal pivot joints. These joints were designed for extremely high and long-term stress, torques and axial loads. The NEMO® Z Double Seal Pivot Joint is lubricated and sealed hermetically by two seals that are resistant to the lubricant and the pumped product. The double sealing ensures process stability.