Here at North Ridge Pumps , we ’ re not tied down to a single pump technology .
• Fuel quality and maintenance By storing a limited amount of fuel , day tanks turn fuel over more frequently , reducing the risk of fuel degrading or becoming contaminated . In addition , day tanks often have built-in filters and monitoring systems which clean the fuel and give an early warning of any potential issues - enabling quick troubleshooting and maintenance .
• Efficient use of space Where bulk fuel storage tanks usually need large amounts of space and infrastructure , day tanks are compact and can be fitted easily into small spaces . What ’ s more , their proximity to the main storage tank means there ’ s no need for long fuel lines , and less risk of fuel contamination or leaks .
Specific project requirements As part of the project brief , our client specified the use of rotary gear pumps as part of the light fuel transfer set for their power generation application . They also wanted a capacity of 20 to 30m ³ h without having to alter their existing
3-inch pipework , which we could achieve with a pump speed of just 350rpm .
Here at North Ridge Pumps , we ’ re not tied down to a single pump technology . We use our expertise to offer a tailor-made solution , not something picked off the shelf . This means we can always select the best pump for any particular client and application - at the lowest lifetime cost .
Using gear pumps for bulk fuel transfer to a day tank
The fuel transfer pump from the bulk tank to the day tank is generally a positive displacement gear pump positioned above the bulk tank .
When the pump is started , the air in the suction line is removed and a vacuum is created . This lifts the liquid in the bulk tank up into the suction pipe and into the day tank .
Our FIG90 internal gear pump with 90 ° flange connections
For this light fuel transfer set , we quoted and supplied two of our industrial long-coupled internal gear pumps - our FIG 90 model .
The casing was manufactured from cast iron and the gears from ductile iron . This ensured that we could achieve an outlet pressure of up to 12bar . Our light fuel oil pumps were completed and despatched to the client in 8 weeks .
Our internal gear pumps are designed to handle clean lubricating fluids of various viscosities – ranging from 2 to 7 times the thickness of water . To handle this variety of fluids , we specified and supplied the pumps with a relief valve which would ensure a consistent flow regardless of fluid viscosity .
For this particular application , the pumps would be transferring light fuel oil . Our internal gear pumps can also be used for pumping resins , adhesives and greases .
Excellent efficiency
Our straightforward design with only two rotating components , together with the exceptionally tight clearances of the internal moving parts means that there is almost zero slip while the internal gear pump is operating .
This means that our gear pumps are not only highly efficient , but they use very little energy . This makes them the perfect solution for applications which require 24 / 7 continuous operation .
If you have an application or operation which involves the transfer of fluids , solids or viscous liquids , and don ’ t know which pump to specify , speak to North Ridge Pumps on 01773 302 660 or visit www . northridgepumps . com to see how we can help .
For further information , please visit www . northridgepumps . com
Issue 68 PECM 103