Leistritz shipbuilding brochure
11Pages

SHIPBUILDING Screw Pumps & Systems

PUMP TECHNOLOGY Leistritz Pumpen GmbH, with its headquarters in Nuremberg/ Germany, has been producing screw pumps since 1924. The first Leistritz screw pump was developed by Paul Leistritz as main lube oil pump for bearings of steam turbine generator sets. Now, nearly one century later, Leistritz offers the widest product range of screw pumps world-wide, and has become a reliable supplier and partner for complete plant engineering with an extended scope of supply. The testing of the pumps through all well known classification societies as ABS, BV, DNV, GL, LRS, RINA and others is made on...

Diesel Engine MAIN LUBE OIL PUMP L2, L3 AND L5, OPTIONAL SUBMERGED L3NG Leistritz screw pumps series L2, L3 and L5 are used as main- and pre lube oil pumps for diesel engines. Several design versions are available, e.g. submerged tank pumps or dry mounted versions for horizontal or vertical execution and finally also special customized pumps can be delivered. Leistritz screw pumps are known for excellent NPSH values and noiseless operation. They are properly designed to accept high percentages of dissolved air in lube oil. 4 Direct-driven pumps have numerous advantages, e.g. small size,...

Pumps in service for fuel oil supply of ships main engines and also for the engine’s periphery (e.g. separators) are subject to high restrictions, given by ship class and other societies. Conditions of operation for the pumps are furthermore touched by additional standards of organisations as IMO, MARPOL and others regarding safety, efficiency and sulphur emission. Depending on pump speed and size, especially screw pumps are well known for high reliability and stability for flow rate and needed pressure. TRANSFER PUMP L3NG FOR FUEL AND DIESEL OIL Leistritz screw pumps are applicable as fuel...

↗ Hydraulic oil supply system ↗ Hydraulic oil supply system HYDRAULIC PUMPS Steering gear Winch Tank Hydraulic pump Nearly all hydraulic devices on ships can be supported by Leistritz screw pumps. Applications can be central hydraulic systems for e. g. supply of hydraulic motors, hydraulic driven propellers or steering gears. Several winches, powered by hydraulic drives, are in use on ships e. g. for pulling anchors or mooring lines. Leistritz hydraulic screw pumps reliably supply hydraulic oil to the components of the system, while the working pressure of the pumps develops as a reaction...

↗ Special applications - cargo ↗ Special applications - cargo ASPHALT TANKER Nearly all different cargo fluids from low viscous diesel oil to high viscous bitumen or molasses can be handled by Leistritz loading and unloading screw pumps. The design and working principle of these pumps ensure a very low noise level and almost pulsation free delivery. With the use of frequency controlled motors and nearly linear relation of speed and flow rate the delivery can be adjusted easily by changing the speed of the pump. Leistritz screw pumps can be driven by hydraulic motors as well. Available...

↗ Special applications - cargo ↗ Special applications - cargo ASPHALT TANKER Comparision L2/L5 pumps vs. L4 pumps SINGLE VOLUTE SCREW PUMP - API PLAN 53 A DOUBLE VOLUTE SCREW PUMP - API PLAN 54 7 Petrochemical companies continuously increase their output of feedstock and finished products all over the globe to satisfy the vast growing demand for fuel, bitumen and other petrochemical products. Recently the fluctuating oil price strongly affects the oil & gas sector as well as global petrochemical economies. On the other hand decreasing oil prices result in growing demand and consumption....

↗ Special applications - cargo ↗ Special applications - cargo Tankers for oil- and chemical products, which are designed to transport several kind of chemicals in bulk put high requirements to pumps and pumps periphery, given by organizations such as MARPOL and other societies. Cargo tanks partially are specially coated to upgrade the resistance against the sensitive and/or aggressive chemical cargo fluids and products. Pumps and their materials of all wetted parts are challenged by the same conditions. Leistritz offers several suitable cargo pump variants according the specified needs and...

↗ Special applications - anti heeling ↗ Service & after sales ANTI-HEELING When ships tilt to port or starboard and don’t return back to their upright position, it is known as „heeling“ of the vessel. Heeling is unsafe for ship, machineries and people on board. The main reasons for heeling are strong winds, hard and speedy turns and especially uneven cargo loading. Anti Heeling systems correct undesirable movements of ships by transfer of ballast water between the heeling tanks. Leistritz offers a L2NG solution as reversible and seawater resistant pump up to 3 bar and approx. 400 m³/h which...

↗ Screw pump range PUMP RANGE SERIES PUMP TYPE PERFORMANCE DATA Flow rate Low pressure duty, suitable for transport of non-abrasive lubricating fluids. Medium pressure duty, suitable for transport of non-abrasive lubricating fluids. Rising demands on pump manufacturers regarding wear protection, service life or flow rate require the use of state-of-the-art machine technology and process chains that are ideally coordinated with one another. These are the prerequisites to facilitate the high-quality manufacturing of pump components. To accomplish this high standard, we produce the screws and...

PUMP TECHNOLOGY Available for you all over the world Leistritz Advanced Technologies Corp., Allendale Headquarters Leistritz Pumpen GmbH, Nuremberg Leistritz Machinery (Taicang), Co., Ltd., Taicang UNITED ARAB EMIRATES Leistritz Italia srl., Milan Leistritz Middle East FZE, Sharjah, UAE Leistritz India Pte. Ltd., Chennai ↗Leistritz Pumpen GmbH | Markgrafenstrasse 36-39 | D 90459 Nuremberg | Germany