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Netzsch releases redesigned Tornado T2 lobe pump

Netzsch Pumps North America, a pumping solutions designer, has redesigned its Tornado T2 rotary lobe pump.

Self-priming and valve-less, the new Tornado T2 is a positive displacement pump well-suited for all liquid types, including media containing gas, solids, or fibrous matter.

Completely redesigned to increase reliability, maintenance, and performance, while reducing the total cost of ownership, the T2 pump can be used in intermittent, continuous, or metering applications.

Unlike conventional rotary lobe pumps that use standard elastomer lobes, the new T2 uses two hardened steel lobes that rotate in a geometrically adapted elastomer insert.

This bi-lobe rotor design creates a longer housing sealing line, providing more wear padding, while a specially developed pulsation reduction system ensures minimal pulsation or shear forces.

The new pump features an elastomer insert design that saves energy, reduces wear, and increases overall service life, Netzsch says.

Vulcanised onto the edges of the lobes to create a permanent hard-soft contact between the lobes throughout the 360° rotation cycle, the insert avoids high-wear contact between elastomer parts.

It acts as a stator and is subject to less dynamic load and deformation than a traditional rotary lobe pump design.

The new pump design also replaces complex timing gear with a synchronous toothed belt drive system, which reduces the danger of transmission damage and also decreases required weight and installation space.

As the drive requires no lubrication, the chance of oil leaks is eliminated.

The T2 also features the full-service-in-place design, which improves access for inspection, cleaning, service, and replacing parts.

The cover plate on the T2 can be removed for access to the pump chamber, where the rotors can be removed and replaced quickly as they are not bolted or keyed to the shafts inside the pump head.

The rotors’ geometry allows their independent removal without the need for special tools.