Rotary Trochoidal Gear Pump l Rotary Trochoidal Pump l Trochoidal Pumps

Only two rotating parts having principle of gear within gear but without crescent.
The inner rotor is located off-center and both rotors rotate.
The geometry of the two rotors partitions the volume between them into N different dynamically-changing volumes. During the assembly's rotation cycle, each of these volumes changes continuously, so any given volume first increases, and then decreases.
An increase creates a vacuum. This vacuum creates suction, and hence, this part of the cycle is where the intake is located. As a volume decreases compression occurs.
The Flow of liquid is axial through the elements.
In built features of speed reduction as pinion is rotated at prime mover speed and outer gear rotates at lower speed.

Smooth pulsation free flow with low noise level.
Choice of mechanical seal or oil seal.
Single short shaft well supported at both the ends with self lubricating bearings.
Precision machined components to guarantee high volumetric efficiency.
Self priming pump with high suction capabilities.
Compact pump as compared to other type of gear pumps.

TYPICAL APPLICATIONS
Transfer and Barrel unloading
Pressure lubricating & cooling of bearings & gear boxes.
Pumping, heating, cooling and filtering units.
Pre-lubrication of components of machinery before starting.

COST COMPARISON
Very economical and costs fraction of screw pumps
Power consumption is less than conventional pumps. Hence economical in operation.

Delta successfully commissions pumps on the Coastguard 06-CG-OPV for 7 ships.
Delta gets approval from NTPC for screw pumps & gear pumps.
Delta completes export order for supply of pumps for 10 ships for leading European Shipyard.
Delta successfully replaces Chinese screw pumps for the critical fuel oil firing application in a UMPP.
Delta provides Bitumen Pumps with variable speed drive to HPCL refinery.

Rotary Trochoidal Gear Pump ( Series DRT/DRTBP )