Perkins M190C, Installation Manual

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Chapter 7 N40475
Page 20
Thread details of the connections on the engines for fuel pipes
Fuel feed - 11/16” ORFS
Fuel return - 11/16” ORFS
It is strongly recommended that the flexible fuel pipes available as an option with the engine are used, which
are as follows:
Fuel feed
The free end of the flexible pipe has a 11/16” ORFS ended fitting, and is supplied with an connector to 1/4”
NPT.
Fuel return
The free end of the flexible pipe has a 11/16” ORFS ended fitting, and is supplied with an connector to 1/4”
NPT.
Fuel tanks should have the following features:
The filler neck should be raised so that water will not enter when filling.
The filler cap should seal effectively to prevent water entering when under way.
A vent pipe should be fitted, again in such a way as to avoid the entry of water.
The tank should have a sump or angled bottom with a drain tap so that water and sediment can be removed.
(This is not always possible).
Internal baffles may be required to prevent fuel surge.
The tank should have a removable panel to simplify cleaning.
The fuel pipe work should be as simple as possible with the minimum of valves and cross connections, so
that obscure fuel feed problems are minimised.
The tank should have at least two connections; a fuel feed connection, and a fuel return connection.
Whenever possible a tank should only supply one engine, but in any case each engine should have its own
fuel pipes, from tank to engine.
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