Roto-Jet

Roto-Jet High Pressure Pitot Tube Pumps

The Roto-Jet® pump has earned a global reputation for reliability and robustness by meeting the demanding requirements of low-flow, high-head applications. The operating characteristics of the Roto-Jet® pump are simple and similar to a conventional centrifugal pump. Energy is added to the fluid via the rotor, and the stationary pitot tube converts the fluid velocity energy into static pressure.

The pitot tube pump is variation on a centrifugal pump. It is unusual in that the casing rotates and not an impeller. In fact, the pump does not utilise an impeller. It uses a fixed pitot tube located within the rotating casing. They are single stage, pitot tube pumps which are designed for low flow, high head applications.

The pitot tube design produces a stable, pulsation free flow. The pitot tube pump is totally, hydraulically stable and can operate with a minimal continuous bypass flow at shutoff indefinitely and at any flow point throughout the total head curve range with no wearing or damaging effect to the pump.

The reason for this unique benefit is that all radial forces tend to be balanced within the rotor, and axial thrust is solely a function of suction pressure. Radial and axial forces applied are independent of flow rate. Thus, the pump can operate at design point to shut-off free of shaft deflection or added thrust load applied to the bearings.

It has a similar performance curve to centrifugal pumps but can operate reliably at any point on the performance curve unlike centrifugal pumps which naturally have a more restricted operating range down to minimum safe flow.

Unlike conventional centrifugal pumps, the Roto-Jet pump will not seize if run dry by a loss of suction or if operated with a minimal continuous bypass flow against a closed discharge valve.

Roto-Jet 2200 Pump

Roto-Jet 2000 Series

Performance Criteria

  • Capacity to: 121.5 m3/hr
  • Head to: 1232 metres
  • Temperature to: 121 C
  • Viscosities to: 10 cps

Applications
Higher efficiency pump for moderate head applications. Available in material options of ductile iron and 316 stainless

Roto-Jet R11 Pump

Roto-Jet R11 Series

Performance Criteria

  • Capacity to: 34 m3/hr
  • Head to: 457 metres
  • Temperature to: 121°C
  • Viscosities to: 10 cps

Applications
Low head version available in ductile iron and 316 stainless. Used in food cleaning systems, RO systems, process water

Roto-Jet RG 3x2

Roto-Jet RG Series

Performance Criteria

  • Capacity to: 91 m3/hr
  • Head to: 792 metres
  • Temperature to: 121°C
  • Viscosities to: 10 cps

Applications
High head version available in ductile iron, steel, 316 stainless, CA6NM and CD4MCu.

Roto-Jet RO D-850 Pump

Roto-Jet RO Series

Performance Criteria

  • Capacity to: 174 m3/hr
  • Head to: 1585 metres
  • Temperature to: 121°C
  • Viscosities to: 10 cps

Applications
High head version available in ductile iron, steel, 316 stainless,  CD4MCu, Hastelloy and super duplex. API version available

Roto-Jet VSR Pump

Roto-Jet VSR Series

Performance Criteria

  • Capacity to: 121.5 m3/hr
  • Head to: 1232 metres
  • Temperature to: 121°C
  • Viscosities to: 10 cps

Applications
Integral variable speed option with integral switch reluctance motor. Material options of ductile iron and 316 stainless

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