ballast tank

(redirected from Ballast tanks)

ballast tank

[′bal·əst ‚taŋk]
(naval architecture)
One of several tanks in the hold of a ship which may be pumped full of water as ballast.
One of the tanks in a submarine that are filled with water or air to submerge or surface.
References in periodicals archive ?
the gate consists of a riveted / screwed steel construction and has at a total height of about 19.0 m (ok grid level "e" to uk bark bars) 4 pieces horizontal bars, starting from the bottom, the designation "a" - "d" wear , between latches "b" and "c" there is a 7.94 m wide floating box (consisting of 16 swimming and ballast tanks) throughout the whole length of the gate, while the total width of the gates including the guide and sealing lumbers is 8.75 m , the overall length is 46.51 m.
and Canadian launch of PPG NOVAGUARD 810 ER, which protects fuel tanks, ballast tanks and the internal and external superstructures of tugs and barges.
This includes an inline gas separator which ensures the safe removal of hydrogen from the liquid stream before the treated water reaches any ballast tank thus eliminating any risk of trapped hydrogen gas in the head space of ballast tanks.
According to the announcement, underwater and above-water parts of the hull and deck of the tanker were cleaned and repainted, welding work carried out in cargo depots and ballast tanks, pipelines were repaired during the maintenance work.
Kimmayong said workers also had to remove almost 1,000 tons of water from the ship's ballast tanks using five portable pumps to lighten the vessel.
DC Wahla said the cocaine was found in a hidden compartment in the boat's ballast tanks after it was taken to Aberdeen harbour to be searched.
Hempel Quattro Photo IMO requires the use of a PSPC certified coating for water ballast tanks and this launch of a new range of pure epoxy coatings represents the latest state-of-the-art in pure epoxy technology which delivers optimized performance based on customer requirements.
Ballast water is seawater that ships carry to maintain balance, it is normally taken on in ballast tanks in the ship's bottom at the unloading port, and then discharged at the loading port.
The IPPIC Marine Coatings Technical Corn-mittee (MCTC) was formed in 2008 to address the International Maritime Organization's (IMO) program establishing uniform performance standards for anticorrosion protective coatings (PSPC) which are applied to ballast tanks, crude oil tanker cargo holds, and void spaces.
Zenobia was halfway to Athens from the port of Heraklion, Crete, when it started listing to port, as a result of excess water being pumped into the ballast tanks.
He put his 27-member crew's counter-piracy drill into practice by initiating a whole-ship lock-down, increasing vessel speed to the maximum, starting fire pumps and overflowing the ballast tanks to thwart potential boarding.
On September 16, rubber insulation and old paint inside the K-150 Tomsk nuclear-powered submarine's main ballast tanks started burning during welding operations, filling the inside compartments with smoke.