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Old 17-12-2019, 19:25   #1
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Help Identifying Propane Fitting

We have a Hallberg-Rassy 352 , and want to change the propane flex hose between the rigid gas line, and a Force 10 stove.Click image for larger version

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ID:	205285

Does anyone recognize the pictured fitting? What is the size? I assume it is European.

All help appreciated,
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Old 17-12-2019, 19:51   #2
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Re: Help Identifying Propane Fitting

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Originally Posted by SVJOCO View Post
Does anyone recognize the pictured fitting? What is the size? I assume it is European.

All help appreciated,
What is the diameter of the fitting?

Is it just MNPT (US male national pipe thread)?
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Old 17-12-2019, 20:07   #3
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Re: Help Identifying Propane Fitting

I would get rid of that manual valve. That shouldn't be there. just replace with a single length of hose just 1 connection at the stove and the other connection at the regulator outside the boat.
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Old 17-12-2019, 21:18   #4
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Re: Help Identifying Propane Fitting

If there is a ferrel (brass sleeve piece) under that nut, and the threaded part is not tapered it is a compression fitting. Compression fittings are normally sized by the OD of the brass tubing used (and available in both metric and fraction of inch sizes).
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Old 17-12-2019, 21:31   #5
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Re: Help Identifying Propane Fitting

This looks like BSPP straight treading. MNPT is taper and the tread on the picture is straight.
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Old 17-12-2019, 21:32   #6
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Re: Help Identifying Propane Fitting

Compression fitting looks like this:

https://cdn.shopify.com/s/files/1/27...g?v=1550094232

The "sleeve" or ferrel can be plastic or brass.
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Old 18-12-2019, 02:50   #7
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Re: Help Identifying Propane Fitting

Looks like a BSPP compression fitting to me. Most European countries use versions of BSP for plumbing. Difficult to tell the size but at a guess either 3/8 or 1/2 inch. Our French built cat has 1/2 inch BSP compression fittings with rubber sealing washers connecting flexibles from the regulator to copper and from shut off valves to hob and oven.

Local gas shut off valves are allowed under European regulations. North American regs are different.
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Old 18-12-2019, 05:46   #8
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Re: Help Identifying Propane Fitting

Wow, you guys are very helpful - thank you.

I hope to now get an adapter to 3/8” male inverted flare (the Force 10 stove needs a hose with 3/8” inverted female flare, so might as well get that at both ends I guess).
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Old 18-12-2019, 06:08   #9
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Re: Help Identifying Propane Fitting

The easy way to be sure is to use a vernier caliper to measure the thread outside diameter and threads per inch
Nominal Size
(inches) T P I Major Diameter
(inches)





1/16 28 0.304



1/8 28 0.383



1/4 19 0.518



3/8 19 0.656



1/2 14 0.825
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Old 18-12-2019, 06:35   #10
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Re: Help Identifying Propane Fitting

Quote:
Originally Posted by SVJOCO View Post
Wow, you guys are very helpful - thank you.

I hope to now get an adapter to 3/8” male inverted flare (the Force 10 stove needs a hose with 3/8” inverted female flare, so might as well get that at both ends I guess).
these hoses are standard in europe ,i think now they also have an outer metal armoured braid.with compression fittings of your choice on the ends,and a date stamp on the assembly

https://www.marinesuperstore.com/gas...-hose-bs3212-2
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Old 18-12-2019, 07:43   #11
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Re: Help Identifying Propane Fitting

Quote:
Originally Posted by SVJOCO View Post
Wow, you guys are very helpful - thank you.

I hope to now get an adapter to 3/8” male inverted flare (the Force 10 stove needs a hose with 3/8” inverted female flare, so might as well get that at both ends I guess).


I don’t know were you are located but in North America, try Parker , Swagelock or any hydraulics Shop.
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Old 18-12-2019, 10:34   #12
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Re: Help Identifying Propane Fitting

I think the Europeans are nuts to require copper tubing for gas lines. Everytime the tubing passes through a bulkhead there has to be a fitting on the bulkhead. That fitting causes two leak possibilities. Plus, I would be concerned about metal fatigue on the tubing that is on a boat that has a lot of motion.

I installed my propane system to ABYC standards and used one hose from inside the gas bottle storage box to the heater and a second hose from the box to the oven. I used gas hose made for that purpose.

When I put my boat through a Post-Construction survey in The Netherlands to legally import the boat into the EU, the inspector passed my gas hoses even though it's not the way it's done in the EU.

...and then there's the regulations about changing seacocks every five years. If the yacht builders used quality bronze instead of brass, there would be no issue. My Wilcox-Crittenden seacocks are 46 years old and in perfect condition.
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Old 18-12-2019, 10:50   #13
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Re: Help Identifying Propane Fitting

Soft copper lines are fine if installed in a good way using Bulkhead fittings and holders. Approved rubber hoses is also a good practice, easier to install but should be replaced by expiration date prescribed by standards.
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Old 18-12-2019, 11:03   #14
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Re: Help Identifying Propane Fitting

Quote:
Originally Posted by SVJOCO View Post
We have a Hallberg-Rassy 352 , and want to change the propane flex hose between the rigid gas line, and a Force 10 stove.Attachment 205285

Does anyone recognize the pictured fitting? What is the size? I assume it is European.

All help appreciated,
I can't help with the fitting. I would suggest, if you can get it, armored hose.
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Old 18-12-2019, 11:53   #15
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Re: Help Identifying Propane Fitting

The part you are looking at is the required adapter from European (Hallberg Rassy) to US (Force 10) hose Fitting threads.
[IMG]https://www.yachtzubehoer24.eu/epages/61687833.sf/de_DE/?ObjectPath=/Shops/61687833/Products/RGA4805
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