running two fuel pumps in parallel

Two pumps set up with one pump as an installed spare. Putting your centrifugal pumps in series, or connected along a single line, will let you add the head from each together and meet your high head, low flow system requirements. A series design places two fuel pumps inline in a common fuel line. Ford used two pumps in sequence on the 80s Rangers and F-series. If we force running two pump in parallel, what could be the risk? The one in the tank was high volume low pressure, and the one on the fuel rail was high pressure. Series pumps shine at high pressures, they flow without dropping off. This is a bad idea because the stock wiring going to the fuel pump assembly isn't up to the task of running two pumps. Incorrectly, many operators expect that flow will double if two pumps are running in parallel. Not to mention that if you get stuck in a jam and cannot find the big pump you need to do the job; by applying parallel pumping you will be able to use two smaller stock pumps. Also there is no point to run two pumps all of the time, you just need it at WOT when you are flowing a lot of fuel. fuel pump I should think that running two pumps is better that one. How about flow and pressure?

In practice the combined head and volume flow moves along the system curve as indicated from 1 to 3. point 3 is where the system operates with both pumps … What is the best method of relieving some of the pressure from the intank pump? I Drilled and tapped the two -8 an fittings on my fuel cell to accept two stock style in tank 255 lph pumps. PUMPS IN PARALLEL - LOW HEAD / HIGH FLOW, OR LOW HEAD / VARIED FLOW APPLICATIONS . Incorrectly, many operators expect that flow will double if two pumps are running in parallel. The flowrate Qt is split between the inlet into Q1 and Q2. My tail pipe is showing signs of running rich and the idle is not so smooth. We plan to … Feb 23, 2010 #1 Thinking about running a 2 fuel pump system for redundancy and wanted to see if anyone has had luck both good or bad in doing so. Running two high pressure fuel pumps in series . For overall flow, you will want parallel pumps, as you can see from the chart you posted, parallel pumps flow more up to 100psi, so unless your running 50+lbs of boost, it's obviously the way to go. This is a bad idea because the stock wiring going to the fuel pump assembly isn't up to the task of running two pumps. Two pumps gives me … Pump in Parallel. Service is to provide fuel oil for 5 gas turbine, in normal operation only a pump run. Also there is no … When selected properly, each circulator will pump half of the total required flow rate at the design head loss. It seems like one would want both pumps running all the time. I'm going to need aprox 120psi at full boost. This cannot happen because, when added together, the combined pump curve intersects the system curve at a higher head due to increased frictional resistance and hence each …