Hydro Prokav Pumps [India] Pvt. Ltd. Supplies Progressive Cavity Helical Rotor Eccentric Screw Pumps, available in KDA Series. Hydro Prokav Pumps [India] Pvt. Ltd. Is an ISO 9001 certified company. The Progressive Cavity Helical Rotor Eccentric Screw Pumps are fabricated from Cast Iron Bearing Housing and Cast Iron Pump Housing. These pumps consist of rotors made of Tool steel, Hard Chrome Plated Alloy steel, SS 304, SS 316 and Alloy Steel or Stainless Steel made rotating part. These pumps also have specially designed single or double knuckle joints. These also incorporate Rubber Stator fabricated from various Synthetic or Natural rubbers such as EPDM, Nitrile, Hyplon, Silicon, Viton, Neoprene, Butyle or Hi -Nitrile depending upon the applications.