LPG Hose and Fittings?

[balarila]

The LPG tank for my stove is outside the house in a small shed for safety reasons. I have a plastic conduit from the tank to our stove. Inside this conduit, I passed through the usual rubber hose used for LPG tanks.

Recently, I saw that the rubber hose is beginning to stiffen and hairline surface cracks started to appear. I would like to change them but is there a more durable material for the hose and fittings I can use?

Appreciate any advice.

[moji]

In our house what was used was copper pipe. The only rubber hose i see is a small section from the regulator to the copper pipe

[beebeenator]

same here, we used a copper pipe

[balarila]

Too late for me to do copper now. Was hoping someone could point me to one of those reinforced plastic hoses and corresponding fittings. Just don't know if the plastic, etc, reacts with LPG.

[rosy]

How far is your shed from your main house?.
NAKA expose ba hose mo sa sun?

I'm asking first this question to know muna ang situation and before giving my 2cents worth of tips.
kasi baka mali rin maibigay ko.

[jacorb]

Not to hijack the thread... would also be needing advice.

My conduit is not exposed to the sun as it is underground. But would like to ensure best material is used for this purpose. Copper might not be possible for me already as the conduit could have some bends on the way to the location of the tank and inserting the copper would not be possible.

Additional query, I'd like to install pressure gauge. The ones I see are attached directly to the regulator which might not be practical because our tank is the taller one and reading the gauge would not be easy. I'm thinking if there's a gauge that can be fixed to the wall or installed this way: LPG tank -> regulator -> rubber hose -> GI pipe (attached to the wall) -> meter gauge -> GI pipe -> hose (w/c runs to the house) -> cooktop.

[violaine]

our tank is the taller one

i believe those LPG tanks are high pressure ones used in restaurants...

i once inquired about this at a local shellane distributor as i wanted to change my tank for the very obvious reason but to my surprise the store owner claims these tall tanks are not intended for ordinary household cooktops..

then i wonder why you are using those tall tanks...

i maybe wrong but i will ask another time.

[balarila]

Sorry. Forgot to keep track of this thread.

My tank is in the garden but inside a shed. Shed is really just a GI roof and has no door. The hose goes straight int the conduit (thru the wall) so not exposed to the elements.

[rosy]

We used to have 18 of those tall LPG tanks but were not used for household consumption, they were used
rather to heat up or warm our day old chicks in their cages for a week or two 'till they develope feathers and would'nt feel cold anymore. , that's when our poultry farm was still in operation in the 80s. :p

Anyway going back to your querry, is your conduit pipe where you insert your hose made of light steel or GI pipe? The reason why I'm asking this is because if let's say your external conduit pipes are exposed to the sun ,umiinit din yuong steel pipe at mainit din sa loob ng pipe though the rubber hose may not be directly exposed to the sun, possible na yuong init sa loob makes the rubber hose brittle. Another thing when using GI or steal pipe is that when exposed to sun and rain it easily gets rusted specially the thin gauges. :eek:

Now if let's say I'm in your shoes so to speak, I'll inspect the entire connection, check the hose for more cracks and possibly replace them, then also change the external steal conduit pipe into a heavy duty PVC pipes much larger than the rubber hose, hindi kasi mainit ang pvc pipe at hindi pa kinakalawang. The only thing here in doing so will entail additional expence but at least I have peace of mind that my LPG connection is safe and I will not fear of any explosions or blast due to gas leaks. ;)

If I remember right during our poultry days, connections of the large LPGs were directly using the 1/2" thick gauge GI pipes with special gas gauge regulators. Connections of the pipes went straight to the heaters. But of course the GI pipes where under the poultry buildings so there's no exposure to the sun and rain. Pipes were all fitted properly with fittings,elbows and tees. :cool:

[jacorb]

our tank is the taller one

i believe those LPG tanks are high pressure ones used in restaurants...

i once inquired about this at a local shellane distributor as i wanted to change my tank for the very obvious reason but to my surprise the store owner claims these tall tanks are not intended for ordinary household cooktops..

then i wonder why you are using those tall tanks...

i maybe wrong but i will ask another time.



It's good that you mentioned it. I will have to do some more research on it while everything is still in the plan. Thats actually an advise from another local distributor. He said taking tank outside depending on how far the cooktop is from the tank will require more pressure. The smaller tanks might not have enough pressure to push the gas to the cooktop so he suggested the taller tank.

Thank you for the heads up!

[balarila]

My LPG tanks are the regular squat type. The conduit through which I passed the rubber hose into is made of PVC and much larger than the hose itself. The PVC pipe is embedded into the concrete at the coolest side of the house so there is really no risk of overheating.

Now, back to the question: what type of house would be best for this application?

[joey81]

Now, back to the question: what type of house would be best for this application?

Not so sure about this, but I would assume the hoses rated for automotive fuel would be the best. It can withstand being exposed to gasoline and extreme heat in the engine compartment.

[Horsepower]

You can try PPR3 (polypropylene random-3) for this purpose.

[bmac]

Gents

Rubber hose for LPG is limited to 1 meter as per NFPA. Otherwise use steel pipe or copper tube.

All tanks or vessel are high pressure since it is above 15psi as per ASME.

Tip. LPG tanks are better exposed in the outdoor this is to maximize the contents of the tank. Another advantage is for the leaked gas will disappear in the atmosphere. remember LPG is lighter than air.

Cheers

[Horsepower]

PPR3 pipes are fusion welded that's why they're 99% leak-proof. Good for very high pressure, hot or cold.

[balarila]

Where cam one source PPR3? I assume one needs special equipment for fusion welding?

[Horsepower]

Most metro-manila hardwares sell PPR3. Some of our suppliers here in Luzon (are you from Luzon sir?) are Benesco in EDSA Cubao and Dexterton in C3 (dexterton.com). We bought our own fusion welder (more or less 10k street price, depending on brand, quality and performance). You can, however, borrow from the store. We used to borrow from Benesco for a 5 or 10k cash bond (refundable upon return of unit) when we still didn't have our own machine (it's very small, like a shoebox).

[tinmuning]

Any recommendations on installers for LPG pipe fittings? Would this be better than just having the LPG inside the kitchen counter?

[balarila]

Darn. Forgot to keep track of this thread again!

Also forgot about the hose altogether! So far, the cracks on the rubber seem to be on the surface. And, to answer some old queries, my hose is inside a PVC pipe that is embedded in the wall. The tank is in a shed in the corner of a garden that is not in direct sunlight. So neither hose nor conduit is exposed to sunlight nor ambient/radiated heat.
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