How vacuum drain is done in Framo pumps?
The vacuum drain line is equipped with a nozzle. The nozzle mixes the remaining liquid in the drain line with the internal tank atmosphere. This will reduce the weight of the liquid column. Consequently, the remaining liquid column can be emptied by means of a “vacuum” system on deck.
What is jockey pump in Framo system?
The framo hydraulic cargo pumping system is designed for a flexible and safe cargo and tank cleaning operation on ships. To prevent impurities from entering the hydraulic system, the system is also pressurized (2-6 bar) when not in operation. Depending on the installation, this is done by a jockey or feed pump.
What is the most important check to do on a Framo submerged cargo pump and why?
Purging of the cofferdam is one of the most important operations to be done when operating a submerged Framo Cargo Pump. This is because the only way to check the pumpTs seals, and thus the conditions of the pumps, is by purging possible leakages in the cofferdam.
What is high capacity mode in a framo hydraulic system?
When starting the first main power pack, two feed pumps will automatically start before the power pack is started. This is called high capacity mode of feed system. This is to keep the feed pressure on the suction side of the main hydraulic pump.
What is the stripping procedure in case of Framo pump?
When the cargo tank is empty, the speed of the cargo pump is reduced to perform the final stripping of tank: Close the cargo valve. Open the small ball valve on the stripping line. Pressurize the pipe stack by connecting the purging hose with compressed air or nitrogen.
What is high capacity mode in a Framo hydraulic system?
Who is the founder of Framo pump?
Frank Mohn
The organization known today as Framo was founded as Frank Mohn AS in Bergen, Norway in 1938.
When tank cleaning is done run the framo pump at?
6.2 Before tank cleaning is finished, close pump s cargo discharge valve and open stripping valve to allow an increase in water level. Run the pump at approximately 110 bar against closed cargo pump discharge valve for 1-2 minutes to clean the cargo pump.
What is high capacity mode in Framo hydraulic system?
Why power packs are used in Framo system?
Power Packs. For the Hydraulic motor to rotate the impeller, there need to be high pressure of hydraulic oil. Power packs supply this high pressure hydraulic oil to the Framo hydraulic motor. Power packs are either installed in the forecastle store or in the engine room of the ship.