Marine and offshore
Ballast water
Ballast water
Ballast water is used for balancing purposes to stabilize ships. Once a ship has been relieved of its cargo, ballast water is pumped into respective tanks. When the ship is loaded up again, the water is pumped back to sea. This is performed by ballast pumps. Compared to centrifugal pumps, Börger Rotary Lobe Pumps have the advantage of being able to both fill and discharge tanks simply by reversing the direction of rotation. No extra control units are necessary. The rotary lobe pump is self-priming and dry-run capable. The pumps are frequency-regulated for more precise in balancing the ship. The pump installation is on deck as an ATEX standard.
Technical data
| Börger | Rotary Lobe Pump |
|---|---|
| Medium | Ballast water |
| Rated capacity | 500 m³/h (2,200 usgpm/h) |
| Speed | 500 rpm |
Kitchen waste
Kitchen waste
A Finnish company that has specialized in systems for waste disposal on ships has been applying Börger rotary lobe pumps for years to convey food waste on ships. The Börger pumps are used in a vacuum system which conveys kitchen waste only. Meanwhile, more than 40 units are in operation. The food waste is filled into a hopper in the commercial kitchen. Due to the rotation of the rotors, the Börger rotary lobe pump generates a vacuum and thus sucks the food waste from the commercial kitchen into a storage container. When in port, the Börger pump is used to empty the storage container.
Technical data
| Börger | Rotary Lobe Pump |
|---|---|
| Medium | Kitchen waste |
| Temperature | 20°C |
| Rated capacity | 7 - 15 m³/h |
Removal of residues
Removal of residues
A shipping company uses Börger pumps on its 3 oil product tankers for draining the pipe systems. The pumps are self-priming, not sensitive to dry running, and can cope with high pressures and changing pumped media without problems. As the pumps are installed on deck, an explosion-proof design was required. The customer is very satisfied with the high reliability and the good suction behavior of the Börger pumps.
Technical data
| Börger | Rotary Lobe Pump |
|---|---|
| Medium | Diesel, gasoline, naphtha |
| Temperatur | 20°C |
| Pressure | 5 - 10 bar |
Bilge
Bilge
A multi-purpose vessel operated by the Federal Waterways and Shipping Administration is used for laying and collecting light buoys, icebreaking, firefighting, emergency towage and vessel traffic monitoring but also operates as a spillage incident vessel. To this end, the vessel with a length of 78.91 m is equipped with two skimmer arms, which – in case of accidents – can absorb the oil/seawater mixture from the water surface. Then the oil is separated from the seawater in the onboard separation system. This separation system is also used for processing the bilge water. To this end, a Börger rotary lobe pump conveys the bilge into the separation tank.
Technical data
| Börger | Rotary Lobe Pump |
|---|---|
| Medium | Bilge |
| Viscosity | up to 10.000 mPas |
| Temperature | up to 32°C |
| Rated capacity | 3 - 6 m³/h |
| Speed | 220 - 440 rpm |
| Pressure | 6 bar |
Oil recovery vessel
Oil recovery vessel
Again and again oil spill emergencies happen on the oceans causing significant damage to the environment. Skimmer pumps convey the oil/seawater mixture into the onboard separation system. For this pumping task it is important to use reliable, high-performance pumps. Since 1996, Börger rotary lobe pumps have been used as skimmer pumps on an oil recovery vessel. The pumps were configured and built individually for the application requirements. The pump casing was manufactured from stainless steel due to the aggressive salt water.
Technical data
| Börger | Rotary Lobe Pump |
|---|---|
| Medium | Sea water / raw oil mixtures |
| Rated capacity | up to 320 m³/h |
| Speed | 200 - 400 rpm |
| Pressure | 6 bar |
Raw oil
Raw oil
A severe problem when fighting oil spill emergencies is the limited capacity of the tanks on the oil recovery vessels. In order to use the tank capacity as efficiently as possible, the oil recovery vessel is equipped with its own separation unit. A Börger rotary lobe pump conveys the oil from the water surface of the collecting tank into the oil storage tank. The separated water can be discharged into the sea. The Börger oil pump was installed on the vessel in 1996 and has been conveying the crude oil without any problems since then.
Technische Daten
| Börger | Rotary Lobe Pump |
|---|---|
| Medium | Raw oil |
| Viscosity | up to 10.000 mPas |
| Rated capacity | 7,5 - 15 m³/h |
| Speed | 185 - 370 rpm |
| Pressure | 6 bar |
Skimmer pump
Skimmer pump
A shipyard was looking for a skimmer pump for an oil recovery vessel which could meet the increased requirements. Based on the consistently positive experience with Börger products on other vessels, the Börger rotary lobe pump was taken into consideration. The capabilities of the Börger rotary lobe pump when pumping highly viscous oil and sea water mixtures were tested and approved. Further requirements were the temporary suction of air (dry run), the flow rate of foreign bodies (e.g. dead birds), as well as a possible change of the direction of rotation.
Technical data
| Börger | Rotary Lobe Pump |
|---|---|
| Medium | Sea water / raw oil mixtures |
| Viscosity | up to 20.000 mPas |
| Rated capacity | 30 - 320 rpm |
| Speed | 100 - 520 rpm |
| Pressure | up to 5 bar |
Sea water
Sea water
In order to fix working platforms or wind turbines on the high seas, suction piles are frequently used which can also serve as a foundation. The piles mostly made of steel have a cylindrical shape and are open on one side. With the open side pointing downwards, the suction piles are sucked into the seabed due to the creation of a vacuum and then hermetically sealed. In order to create this vacuum, the seawater situated in the cylinder is pumped from the suction pile. Two Börger pumps are installed on a submersible module and driven by a hydraulic motor. In order to increase the resistance of the pump casing to the aggressive seawater, Börger has developed the Black Protection surface treatment.
Technical data
| Börger | Rotary Lobe Pump |
|---|---|
| Medium | Sea water |
| Temperature | 1 - 23°C |
| Rated capacity | 43 m³/h |
| Speed | 450 rpm |
Food waste
Food waste
On 01 January 2013 the revised annex V of the MARPOL convention for the prevention of pollution by garbage from ships entered into force. According to the annex, the discharge of all garbage into the sea is prohibited. Comminuted food wastes capable of passing through a screen with openings no larger than 25 mm may be discharged into the sea under certain circumstances. For macerating the food wastes, the customer uses a Börger Multicrusher Ocean installed in a 90° turned position. At the top opening, the kitchen waste is fed through a hopper. A special "tamping arm" is used to feed the solids to be macerated completely.
Technical data
| Macerator | Multicrusher Ocean |
|---|---|
| Medium | Food waste |
| Speed | 180 rpm |
Water/oil mixture
Water/oil mixture
The unproblematic pumping in slurp operation, the short-term dry-run capability and the gentle pumping nearly without emulsification are the reason why Börger pumps are the ideal pumps for any oil spill emergencies. The aluminum pump with the 7.3 kW combustion motor is designed as a portable unit for use as a mobile skimmer pump. This way, fully independent operation even in rough terrain is possible. The flow rate can be varied and adapted to the different conditions by means of the pump speed.
Technical data
| Börger | Rotary Lobe Pump |
|---|---|
| Medium | Water/oil mixture |
| Viscosity | up to 500 mPas |
| Rated capacity | 20 - 30 m³/h |
| Speed | 540 - 702 rpm |
| Pressure | up to 6 bar |
Sea water / waste water / bilge
Sea water / waste water / bilge
A shipping office had several vessels with mobile pumps on hand carts. Due to the narrow gangways on board, the carts required special, very small features which could accommodate different pumps for the varying pumped medium. The customer was impressed with the low maintenance costs and high reliability.
Technical data
| Börger | Mobile Rotary Lobe Pump |
|---|---|
| Medium | Sea water, waste water, bilge |
| Rated capacity | 2.5 - 5 m³/h (11 - 22 usgpm/h) |
| Pressure | 3 bar (44 psi) |
Sea water with crude oil
Sea water with crude oil
A coastguard ship is equipped with Börger pumps to control damage in the event of an environmental disaster by priming oil spills from the sea surface. The water/oil mixture is separated on board and the clean water is then fed back into the sea. Downtime during a crisis is out of the question and the pumps have to be resistant to sea water and reversible.
Technical data
| Börger | Rotary Lobe Pump |
|---|---|
| Medium | Sea water with crude oil |
| Rated capacity | 320 m³/h (1,408 usgpm/h) |
| Pressure | 6 bar (87 psi) |
Human waste with sea water
Human waste with sea water
A shipyard decided on Börger pumps for the disposal of human waste on board. Their benefits: low weight, compact design, ease of maintenance and a high degree of safety with the pressure control device. The toxic mixture of human waste and sea water require a stainless steel liner liquid pump.
Technical data
| Börger | Rotary Lobe Pump |
|---|---|
| Medium | Human waste with sea water |
| Rated capacity | 60 m³/h (264 usgpm/h) |
| Pressure | 3 bar (44 psi) |
Waste water
Waste water
The ship of a disposal company for ship generated waste was equipped with a Börger Rotary Lobe Pump with variable-speed motor to dispose of waste from large ships. Bilge, oil and sea water subject the material to extreme wear, nonetheless the ease of maintenance and reliability/dependability of the Börger Rotary Lobe Pumps prove their excellence.
Technical data
| Börger | Rotary Lobe Pump |
|---|---|
| Medium | Ship waste water |
| Rated capacity | 150 m³/h (660 usgpm/h) |
| Pressure | 4 bar (58 psi) |