Teryair Pneumatic Centrifugal Pumps are used to empty ballast tanks, bilge wells, etc. Often used for draining cargo holds during and after the washing procedure. Teryair Centrifugal pumps have a small cross-section and hence can be lowered into areas having small access hatches. Especially preferred where an eclectic spark may risk ignition or explosion. Required air pressure is 059 MPa (6kgf/cm2).