BSS compliance - breather pipes meeting BS7840 specification

[pedroinlondon]

7 hours ago, David Mack said:

The fuel tank needs a vent pipe which runs from the top of the tank to the outside air,and which terminates above the tank filler level. This pipe allows air out when the tank is filled and back in as fuel is consumed. Details of what is required are on the BSS checklist.

Thanks David

6 hours ago, David Mack said:

It doesn't. The exemption is limited to historical firmer working canal craft, and doesn't apply to a relatively new lifeboat, now being refurbished as a canal boat.

I can see that for a lifeboat, having the filler and vent on the exterior, exposed to the wind and waves, would be a bad idea. The reverse is true on the canal.

These lifeboats are enclosed, and do go under water completely when dropped from an height. No holes anywhere!

[Momac]

8 minutes ago, magnetman said:

I don't think refuelling is at the top of the agenda with these craft. 

Agreed 

[pedroinlondon]

17 minutes ago, matty40s said:

Ok, most of the above arguments are typical between the guys involved. 😐

Basically, your fuel tank should have 2 externally fitted pipes other than the fuel to engine/diesel heater supply..., a filler, and a breather.

These can either be flexible, or solid piping.

If flexible, both the tank supply point, and the external fitting point must be visible and inspectable for sureness. ie, the examiner must be able to access the internal fittings to make sure they are sound and not perished.

The breather pipe must be fitted to the exterior with an air vent, which must have anti flash gauze fitted to those. 

Great. Thanks for that.

[blackrose]

12 hours ago, pedroinlondon said:

I've bought a decommissioned enclosed life boat, which I'm told will require a few changes and additions to be compliant with the canal world/BSS exam.

 

It probably won't take too much time and effort to get a decommissioned lifeboat to comply with the BSS, but I'm afraid it will never be compliant with the canal world. 😉

[pedroinlondon]

5 hours ago, blackrose said:

 

It probably won't take too much time and effort to get a decommissioned lifeboat to comply with the BSS, but I'm afraid it will never be compliant with the canal world. 😉

🤐

[Bee]

https://uk.images.search.yahoo.com/yhs/search?p=flush+fitting+fuel+breather+pipes&fr=yhs-fc-2377&type=fc_ABEB8F9E1DE_s69_g_e_d_n2004_c999&hspart=fc&hsimp=yhs-2377&imgurl=https%3A%2F%2Fwww.boataccessoriesaustralia.com.au%2Fassets%2Ffull%2F1130485.jpg%3F20200703031004#id=4&iurl=https%3A%2F%2Fwww.boataccessoriesaustralia.com.au%2Fassets%2Ffull%2F1130485.jpg%3F20200703031004&action=click

 

Something like this, the one on the left can be mounted on the side of the boat and fits flush with the surface, the link above is from Australia but you can get similar ones in the UK, the hose has to be compliant too - a bit chopped off the end of the hose in your garden will not do!

[pedroinlondon]

3 hours ago, Bee said:

https://uk.images.search.yahoo.com/yhs/search?p=flush+fitting+fuel+breather+pipes&fr=yhs-fc-2377&type=fc_ABEB8F9E1DE_s69_g_e_d_n2004_c999&hspart=fc&hsimp=yhs-2377&imgurl=https%3A%2F%2Fwww.boataccessoriesaustralia.com.au%2Fassets%2Ffull%2F1130485.jpg%3F20200703031004#id=4&iurl=https%3A%2F%2Fwww.boataccessoriesaustralia.com.au%2Fassets%2Ffull%2F1130485.jpg%3F20200703031004&action=click

 

Something like this, the one on the left can be mounted on the side of the boat and fits flush with the surface, the link above is from Australia but you can get similar ones in the UK, the hose has to be compliant too - a bit chopped off the end of the hose in your garden will not do!

Thanks Bee. I know about the hose now, and will have to decide on the best type of vent for my purposes. I don't know yet if it will be fitted horizontally or not.