Accessories OVH (Overhead Drive) with 'V' belt, pulley and guard 'L' shape base frame with 'V' belt, pulley and guard D.D. (Direct Drive) with gear box, motor and guard D.D. (Direct Drive) with geared motor and guard    Ramo G Series Ramo GM Series Ramo H Series Ramo W Series Ramo B Series Ramo Triple Screw Pumps The Principles and Accesories for Ramo G, GM, H, W & B - Series pumps are common.    Principle Single screw pumps belong to the family of rotary positive displacement pumps, which works on unique principle of Progressive Cavity Pumps. The principle feature of this pump is based on a single helical rotor turning eccentrically in a double threaded helical stator twice the pitch length. As it rotates, a series of sealed cavities, 180 degrees apart are formed, which move along the pump from suction to discharge. As one cavity is closing, the opposite cavity is increasing in size at exactly the same rate to produce a non-pulsating displacement flow.       Accessories D.D. (Direct Drive) with variable frequency drive. D.D. (Direct Drive) with mech. Speed variable drive, motor and guard Trolley Mounting Option      Reach Us     Head Office      B 114, 1st Floor, Durian Estate,      Goregaon East, Mumbai 400 063,   India.      Ph: 0091-22-2927 6995 / 6698 6896      Fax: 0091-22-2927 7443      Email: sales@pdpumps.com     © PD Pumps & Systems All rights reserved   Designed and developed by Swagatham Info Media Private Limited