Uncategorized

Bilge Eductors for stripping Bilge Area

The lowermost region inside a ship is referred to as the bilge area. Rain water that cannot find a way off the deck, Water from leakages, sanitation system and disposed water is made to collect in this Bilge area and is referred to as Bilge.
The bilge area houses tanks for collecting the Bilge and the level of Bilge in these tanks need to be controlled. Once excess water gets collected it is pumped out of the Bilge with the help of Bilge Eductors

Bilge Eductors are Liquid Eductors that operate on the basis of the jet venturi principle Bilge Eductors utilize the energy in pumped water to suck water from the Bilge and pump it out from the outlet.

Most importantly Bilge Eductors are self priming in nature and unlike Bilge Pumps do not require any sperate priming action. This enables Bilge Eductors to be started directly even in case of low water levels in Bilge Tanks.

Bilge lie at the lowermost region in the ship and an high suction lift is a general occurrence. Bilge Eductors are able to handle high suction lifts and often suck water even from a 8m suction lift. This is helpful in removing water from the Bilge even from the lowermost levels.

Typically the driving water requirement of the Bilge Eductor varies from 3 bar(a) to 12 bar(a) i.e a pump head of 20m to 110m. The required driving water can be easily provided from the onboard Ballast pumps and fire pumps thus requiring no additional infrastructure.

Benefits of Bilge Eductors in Ballasting Operation
• Capacity to provide high suction lifts helps in stripping the Bilge to the lowermost levels.
• Self-priming nature enables quick start-up.
• Bilge Eductors do not contain any moving parts and have large internal passage areas, hence are not vulnerable to clogging by solid particles.
• As they have no moving parts, maintenance requirements are very less. Also it reduces largely the risk of abrupt breakdowns, helps in maintaining the regular operating schedule
• Silent Operation