Hydro Prokav Pumps [India] Pvt. Ltd. Offers Vertical or Drum or Barrel Screw Pumps, available in KB series. Hydro Prokav Pumps [India] Pvt. Ltd. Is an ISO 9001 certified company. The Vertical or Drum or Barrel Screw Pumps feature portable design and are used in emptying barrels. These are made using Mild steel or stainless steel having rotating parts suitable for duty conditions. These pumps are controlled by vertical type mounted geared or flanged motors. The Vertical or Drum or Barrel Screw Pumps have soft gland packing or mechanical seal for soft sealing. These pumps are operated on the progressive cavity principle. These are equipped with torsion-free metal-bonded stator which ensures increased stator life and good efficiency.