Marine Self-priming Non-block Sewage Pumps ZW/CZW/ SZW series Marine self-priming non-block sewage pump has ZW series,CZW series, SZW series in China market.They are manufactured by different factories but traded by only one marine professional company,Ekaship Ha***are Limited.More information,pls contact us asap. Ekahsip h***e enough resoures of spare part for your pumps made in w more and more vessels are using Chinese pumps and to find the spare part for them? Definitely the answer is Ekaship. (1) Features: a) Simple structure b) Convenient operation c) Steady running d) Easy to maintain e) High efficiency f) Long duration (2)Application a) Petroleum industry b) Land oil depot c) Oil tank d) Marine cargo oil pump e) Ship Bilge pump f) Machine cooling water circulation (3)Technical parameter a) Capacity Q=3.2-500m3/h b) Head H=12-80m c) Speed n=1450-2900r/min d) Temperature range -20-80 degrees centigrade e) Caliber: 25-300mm