Gas drain- Braided Gas hose

[Caer Urfa]

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???

 

[sarabande]

Calor have some assemblies which might be large enough

http://www.calor.co.uk/search/?q=braided


or someone from the vehicle industry ?

http://www.hosesolutions.org.uk/


EDIT

Got it ! Motorsport

http://www.merlinmotorsport.co.uk/p...(19mm)-I.D.-(PER-1/2-METRE)/product_info.html

 

[Seajet]

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 !

 

[VicMallows]

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

Why do you want such a large diameter hose?? Surely it is the terminations that are relevant, not the hose diameter?

 

[Slowtack]

For draining locker overboard???

 

[sailorman]

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???

Gas drain

 

[Seajet]

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.

 

[sailorman]

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.

mine is via a pipe but not armored, it doesnt need to be

 

[VicS]

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.

 

[misterg]

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...

Andy

 

[Blueboatman]

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

 

[saltylegs]

Try here.
http://www.gasproducts.co.uk/acatalog/Caravan_Gas_Equipment.html
but I would not use braided hose for a drain, the diameter is too restricted, I would use at least 15mm internal dia. hose fitted to the gas locker with skin fitting or similar.

 

[VicMallows]

This thread is a perfect example of 'drift'. OP asks about a cooker connection hose.....answers soon drift to a discussion about size of hose for a gas locker drain

 

[sarabande]

umm, the word 'drain' is mentioned in the OP title....

But, yes , the debate on drain sizes is useful.

 

[VicMallows]

umm, the word 'drain' is mentioned in the OP title....

But, yes , the debate on drain sizes is useful.

OOPS! - must read post titles in future.

 

[Caer Urfa]

Gas drain

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

 

[sailorman]

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.

 

[Caer Urfa]

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

 

[sailorman]

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

 

[VicS]

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

That refers to storing gas cylinders on the transom !