Fuel Filter Water Seperator
Posted: 29 Feb 2016, 19:58
A subject which comes up on Rhibs FB is the subject of fuel filters and multi tank applications. I may be making a giant assumption here but this post may be of more use to the Rib owners than the sib and F-rib owners but anyone using multiple tanks may find this useful.
I have long been concerned about the risk of fuel contamination and whilst dirt is less of a problem these days with the widespread move to plastic tanks there is still a problem with condensation forming whilst tanks are in storage. On a recent trip to the USA I saw a set up on a commercial boat which apparently is a Coastguard requirement so installed the same on my boat.
The filter assembly is a Qwick View 10 micron fuel filter from Specialist Small Craft and has either the metal head unit or the cheaper option of a composite head which has the added advantage of no corrosion issues. This unit has a visible float which enables you to see any water in the system at a glance and the option of a drain off valve. There are two inlet points and two exit points and as I run two tanks I have fitted two SS ball valves to the inlets to these are added new Lloyds spec fuel line to the tanks using new all SS jubilee clips. One exit port is blanked off with the blanking plug supplied with the filter, the fuel line to the engine with the priming bulb is attached to the other exit point (again the barbed conecters are supplied). The filter should be positioned so that a suitable cup can be placed under it when draining off, in my case there wasn't room on the transom so it is fitted to the back of the bench seat.
The end result is a neat instal that enables me to switch tanks on the move without the risk of spills and the added benefit of being able to isolate the engine in event of a fire.
The valves are available from most agricultural machinery supliers or hydraulic pipe makers.
I hope this is of value to people ...safe seas
I have long been concerned about the risk of fuel contamination and whilst dirt is less of a problem these days with the widespread move to plastic tanks there is still a problem with condensation forming whilst tanks are in storage. On a recent trip to the USA I saw a set up on a commercial boat which apparently is a Coastguard requirement so installed the same on my boat.
The filter assembly is a Qwick View 10 micron fuel filter from Specialist Small Craft and has either the metal head unit or the cheaper option of a composite head which has the added advantage of no corrosion issues. This unit has a visible float which enables you to see any water in the system at a glance and the option of a drain off valve. There are two inlet points and two exit points and as I run two tanks I have fitted two SS ball valves to the inlets to these are added new Lloyds spec fuel line to the tanks using new all SS jubilee clips. One exit port is blanked off with the blanking plug supplied with the filter, the fuel line to the engine with the priming bulb is attached to the other exit point (again the barbed conecters are supplied). The filter should be positioned so that a suitable cup can be placed under it when draining off, in my case there wasn't room on the transom so it is fitted to the back of the bench seat.
The end result is a neat instal that enables me to switch tanks on the move without the risk of spills and the added benefit of being able to isolate the engine in event of a fire.
The valves are available from most agricultural machinery supliers or hydraulic pipe makers.
I hope this is of value to people ...safe seas