Gas drain- Braided Gas hose

Caer Urfa

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Anyone know where I can purchase a 3/4" or 19 mm braided gas hose approximatly 12" (300mm long).

Or somewhere that can make one up?

Mike

Like this but to above size, or is above size to big for a braided hose???


ha0251.jpg
 
Caer Urfa,

I'm not sure exactly what you mean but beware 'armoured' gas hose, I had a fire on a boat because I coudn't see the flexible hose to the gimballed cooker was damaged.

Caravan shops supply flexible gas hose - it should only be long enough to let the cooker swing - with the date printed on it, I replace mine every year, it's quite cheap.

If you need actual gas pipe fittings and are not confident to do it yourself, you will need to ask around your locals at the mooring / marina ( if the latter, check they allow people in to work on boats, some don't ) and have a cheque book / card handy !
 
Surely

( yes I know, " don't call me Shirley ! ") any gas drain is not by pipe; gas bottles, where a leakage is most likely, should be in lockers with plenty of ventilation and open bottoms where spilled heavier than air gas can go overboard instead of into the bilges.
 
The BSS says

Best practice
We recommend you to fit, whenever possible, drain hose that
complies with a recognised standard such as ISO 7840 for fire
resistance or BS 3212 for LPG.​

BS 3212:1991 ‘Specification for flexible rubber tubing,
rubber hose and rubber hose assemblies for use in LPG
vapour phase and LPG/air installations​

BS EN ISO 7840:2004 ‘Small craft. Fire-resistant
fuel hoses’​

Dunno where you will find either in the required diameter. :(
 
Dunno where you will find either in the required diameter. :(

ISO 7840 hose is widely available in many diameters, including 19mm :)

Click


I've got ~ 300mm of it around somewhere, left over from the metre I bought some for a gas locker drain. The OP can have it if he's in N Wales.

No idea why it would have to be braided - it's not under pressure... :confused:

Andy
 
Try telephoning a Brake/hydraulic repair facility ( yellow pages, nearest industrial estate, more common than you might at first think....)
 
Gas drain :confused:

I am installing a total new gas installation and trying to conform with the BSC guid lines, whilst I have no intentions of motoring in 'inland waters' I do if possible want to get the new system certified.

Recommended BSC 'best practice' for a gas drain is 19mm dia gas locker to outside skin fitting, but the guy who certifies the system said it would be even better if its in copper pipe, I have purchased a GRP certified gas locker, and everything else to the ISO numbers specified, but when the gas locker is installed as in all boats access is the big problem, especially under the locker for the drain connections if using a rigid copper pipe, hence it would have been easier if the drain pipe was flexible.

I have already tried most of the gas pipe suppliers and I think a 19mm flexible is a none starter, so its back to plan 'B' for a fire Retardant rubber pipe.

Thanks all for your comments

Mike
 
I am installing a total new gas installation and trying to conform with the BSC guid lines, whilst I have no intentions of motoring in 'inland waters' I do if possible want to get the new system certified.

Recommended BSC 'best practice' for a gas drain is 19mm dia gas locker to outside skin fitting, but the guy who certifies the system said it would be even better if its in copper pipe, I have purchased a GRP certified gas locker, and everything else to the ISO numbers specified, but when the gas locker is installed as in all boats access is the big problem, especially under the locker for the drain connections if using a rigid copper pipe, hence it would have been easier if the drain pipe was flexible.

I have already tried most of the gas pipe suppliers and I think a 19mm flexible is a none starter, so its back to plan 'B' for a fire Retardant rubber pipe.

Thanks all for your comments

Mike

copper will be subject to vibration & hardening.
i have 15m/m reinforced flexi plastic pipe affixed to a short length of 12m/m copper pipe bonded into the transom.
 
copper will be subject to vibration & hardening.
i have 15m/m reinforced flexi plastic pipe affixed to a short length of 12m/m copper pipe bonded into the transom.

Interesting!

Although many boats have transom exhausts I looked into this for mounting the gas skin fitting on the transom and it is now not recommended due to possible impact/collision damage from another boat and deemed to be a higher risk than if it is fitted in the side.
See 'Best Practice' section 7.1.1/R http://www.boatsafetyscheme.com/downloads/BSS_Guide_chap7.pdf
 
Interesting!

Although many boats have transom exhausts I looked into this for mounting the gas skin fitting on the transom and it is now not recommended due to possible impact/collision damage from another boat and deemed to be a higher risk than if it is fitted in the side.
See 'Best Practice' section 7.1.1/R http://www.boatsafetyscheme.com/downloads/BSS_Guide_chap7.pdf

if the pipe gets knocked out of my transom that will be the least of my problems.
the transom is akin to a ski-slope :D
 
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