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Self-Priming centrifugal pumps were invented in 1935. One of the first companies to market a self-priming centrifugal pump was American Marsh in 1938. [citation needed] Centrifugal pumps that are not designed with an internal or external self-priming stage can only start to pump the fluid after the pump has initially been primed with the fluid.
Different types of pumps are suitable for different applications, for example: a pump's maximum lift height also determines the applications it can be used for. Low-lift pumps are only suitable for the pumping of surface water (e.g., irrigation, drainage of lands, ...), while high-lift pumps allow deep water pumping (e.g., potable water pumping ...
Alfa Laval manufactures valves, pumps, heat exchangers, evaporators, distillers, oil separators, filters, ballast water treatment systems, and all other hardware vital to the operation of the a ship's engine room. As of 2011, Alfa Laval consolidated its Marine, Offshore, and Diesel divisions into one, Marine & Diesel, division in an effort to ...
While centrifugal pumps impart momentum to the fluid by motion of blades, positive displacement pumps transfer fluid by variation in the size of the pump’s chamber. Centrifugal pumps can be of rotor or propeller types, whereas positive displacement pumps may be gear-based, piston-based, diaphragm-based, etc. As a general rule, centrifugal ...
Direct fuel injection, centrifugal pump cooling system (2,457 L/min or 540 imp gal/min or 649 US gal/min at 1,000 rpm), fan driven by eddy current clutch (86 hp or 64 kW at 1,000 rpm) Governor GE 17MG8 / Woodwards 8574-650 / Medha MEG 601 Transmission Electric, with BHEL TG 10931 AZ generator (1,000 rpm, 770 V, 4,520 A) Traction motors
Sifeng Model 12 HP 2WT with 5.6 tonnes of rice, Bangladesh A Changzhou Hengfeng Two-wheel tractor ('Walking Tractor') in Hsipaw ().. Research has identified several terms used to identify the two-wheel tractor including: "walk-behind tractor, iron-ox, walking tractor, mechanical ox, ox-machine, pedestrian tractor, hand tractor, single-axle tractor, and in Asia, tok-tok".
This is a list of notable manufacturing companies of Bangladesh This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources .
Direct fuel injection, centrifugal pump cooling system (2,457 L/min (540 imp gal/min; 649 US gal/min) at 1,050 rpm), fan driven by eddy current clutch (90 hp or 67 kW at 1,050 rpm) Governor EDC / Woodward 8574-650 Transmission Electric, with BHEL TA 10102 CW alternator (1,050 rpm, 1100 V, 4,400 amperes) (Earlier used BHEL TG 10931 AZ alternator)