Internal Lobe Pump by Hydro Electricals

An internal lobe pump unit consists of an inner and outer rotor. The inner rotor has one teeth lesser than the outer rotor. Tushaco’s RT and RTBP series uses a trochoidal inner rotor and an outer rotor formed by a circle with intersecting circular arcs. The inner rotor is located off-center and both rotors rotate. During part of the assembly's rotation cycle, the area between the inner and outer rotor increases thus creates a vacuum. This vacuum creates suction, and hence, this part of the cycle is where the intake is located. Then, the area between the rotors decreases, causing compression. During this compression period, fluids can be pumped, or compressed (if they are gaseous fluids).

Smooth rolling action of the rotors results in minimum noise, vibration and pulsation - less flow.

Typical Pumped Media

Fuel Oil, Lube Oil, Oily water

Typical Application

Transfer and barrel unloading, Pressure lubricating & cooling of bearings & gear boxes

Typical Industries

Power generation, Marine, Navy, Oil & Gas, General Industrial, Machine Tool, Cement, Steel

Maximum performance data

Capacity : upto 200 lpm

Diff. Pressure : upto 8 bar

Maximum Operating parameters

Viscosity : upto 1,500 cSt

Fluid Temperature : upto 250 °C

Material of Construction

Casing options : Cast Iron

Rotor: Sintered Iron

Sealing Options : Gland packing / Mechanical seal / Oil seal

Construction features

Mounting options : Horizontal Foot / Horizontal Flange

Relief valve options :Built-in / Line mounted

Salient features

Capable of running at direct motor speed

Less noise and vibration

Very compact installation

High suction lift

Negligible maintenance