Orientation of silencer for wet exhaust

[ivisonm]

I am re-fitting the silencer to my yact and the previous owner had it mounted horizontally.

Would it cause a problem if I mounted it vertically to use the space in the bilge more effectively? (It's an encapsulated find keel so about 4 foot of vertical room).

Thanks

 

[rob2]

If it is just a silencer, then it should work in any orientation - mine is the vertical approach to the swanneck. If it is also a water trap, then it must be correctly oriented to perform that function (basically as it would be photographed for an advert).

Rob.

 

[ivisonm]

Yeah, it's a water trap as well. If it has to go in horizontally then it cuts down a lot of space in the bilge..

 

[philip_stevens]

What make and type of water-trap is it?

There are vertical and horizontal versions.

I had a horizontal Vetus trap, and changed it for vertical Vetus trap to a better location.

 

[ivisonm]

It's a custom made stainless one. A 8" round cylinder and about 2 foot long.

 

[Tranona]

If it was meant to be vertical, it would be short and fat. It is made long and thin so that it lies horizontally. If you want to change for a short fat one, then you can get them from either Vetus or Halyard Marine. Stainless is not the best material for this application - they are now plastic, GRP or rubber.

There are good schematics of exhaust sytems in the Vetus catalogue www.vetus.com

 

[ukmctc]

sounds like no is the answere, you would need to change it for another, Force 4 do then from £45, same as Vectus but much cheaper only problem is if they ever run dry they melt thats both F4 and Vectus. There are loads about I just fitted one made of fibreglass, a full range available from ASAP Marine Supplies ltd well priced too. You can have one made of mild steel there is nothing inside them no baffles just two tubes one inlet one out and the inlet is a couple of inches higher than the outlet.

 

[vyv_cox]

You can have one made of mild steel there is nothing inside them no baffles just two tubes one inlet one out and the inlet is a couple of inches higher than the outlet.

Hot seawater and exhaust gases! How long do they last? Two per season?

 

[rob2]

I'd have to disagree with the generalisation viz short and fat/ long and thin - particularly with a custom built water trap. On a friend's boat which had had a dry exhaust with the water fed into the trap, the trap was tall and thin and mounted vertically against a bulkhead. We fitted a changeover valve so that whilst starting the water fed directly to the trap as before, once the engine fired the changeover fed the water to the mixer elbow (before the hose melted). Water was agian sent direct to the trap before pulling the stop lever so as to leave the manifold dry. With a tall trap we had no need of a swanneck at the transom.

Rob.

 

[Tranona]

Sounds a complicated way of solving what is usually very easy with a water trap and a loop in the exhaust. Completely automatic and idiot proof if installed correctly.