What is this?

[captpatrick211]

Yes....  we're still new to this sailing world and discovering things that puzzle us regularly.  This is located in the aft starboard cabin at the foot of the bunk.  It looks scary important.  Thanks!

[hidrotherapy]

Fuel valve

[Ricd]

Fuel isolation valve or Gas isolation valve/

[captpatrick211]

Thank you!!!

[Yngmar]

It's the gas one. You turn this off if your cooker is in flames. Should have a German/English sticker nearby . Ours reads "Gas shut-off valve in locker".

[tiger79]

Well, it's a shut-off valve, either for the fuel or for the gas (they're basically identical valves).  Based on the location, I'd guess it's the fuel valve.

[Yngmar]

Well, it's a shut-off valve, either for the fuel or for the gas (they're basically identical valves).  Based on the location, I'd guess it's the fuel valve.

Our diesel runs in hoses, only the gas is in copper pipe (and uses that exact valve).

[Spirit of Mary]

It is the fuel isolation valve. Bavaria uses a needle valve for it, the same as for the gas. This needle valve can create problems when the fuel is contaminated. Some people have changed this valve by a other type with larger opening.
 Ger.

[Salty]

It’s the shut off valve on the line from your fuel tank to your engine. Simple check to see what it is, is to lift the cushion off from the bunk in your starboard cabin and then lift off the portable wooden cover from the bunk base. This will expose your fuel tank and you can then follow the line from the valve back to the tank in one direction and from the valve to your primary fuel filter which is probably placed just inside the engine compartment immediately aft of the portable engine room access hatch located next to your right elbow as you face the valve in your photograph.

[captpatrick211]

Thank you will do......  appreciate all the comments.

[tiger79]

When the boat was new, there'd have been a label stuck next to it.

[captpatrick211]

Thanks!

[Mirror45184]

Easy to establish if it is fuel (Diesel) or gas... turn it off and see if it takes longer to boil the kettle!
Seriously from the location it looks more like the fuel isolation valve. Nice placement really, need to squeeze past a burning engine to isolate the fuel supply!

[Salty]

Easy to establish if it is fuel (Diesel) or gas... turn it off and see if it takes longer to boil the kettle!
Seriously from the location it looks more like the fuel isolation valve. Nice placement really, need to squeeze past a burning engine to isolate the fuel supply!

Unfortunately Mark, things aren’t always that easy. Several of us, as noted in other threads, have set off with our fuel valves left inadvertently shut, and the damn contrary engine has started and run continuously for many hours. Six of them on my boat, and someone else reported running for almost twenty four hours before the engine stopped and they found their fuel valve was shut. I got quite excited about it and hoped I’d stumbled upon a way of being able to make fuel without having to buy it first, but no such luck !!

[Irmascherkid]

Looks like the fuel shut off valve, But what is the wire bonded to? The bracket is insulated with rubber...

[dawntreader]

Looks like the fuel shut off valve, But what is the wire bonded to? The bracket is insulated with rubber...

....to stop the fuel pipe being damaged by vibration (metal-on-metal).

[tiger79]

Looks like the fuel shut off valve, But what is the wire bonded to? The bracket is insulated with rubber...

You'll see in my pic (reply 10) that the bonding wire is separately connected in recent times.