These pumps are compact pumps close coupled pumps with pump housing made out of cast iron, SS 304,SS 316 or special Alloys like Alloy 20, Hastalloy. Rotors, Hard Chrome Plated alloy steel,Tool Steel,SS 304, SS 316 and the rotating part are of Stainless Steel. The universal joints are specialy designed single or double knuckle joints. The Rubber Stator is made out of Natural or Synthetic rubbers like Nitrile, EPDM, Hyplon, Silicon, Neoprene, Viton, Butyle or Hi –Nitrile based on application.