PVC Exhaust

This thread is great fun to read. Thanks to all.
I deal mostly with commercial boats, all dry stack
but I have seen a plastic riser or two and have wondered.
Guess it dont get that hot. I was hoping someone would
take the bet. Oh well!

 

Hey--thats a good point. Those plastic dump exhausts and goose necks made by Vetus are made from what ---- bloody PVC.

Ha ha Oh well if Vetus do it --- then thats ok then.

Yeah I wish some one would have took the bet too. about 3 or 4 would have been a great day out.

Notice the loudest shut up immediately.

That is a good point all these Skeptics probably have Vetus PVC goose neck and risers,--- but it will melt!!!!! ha ha ha

 

Vetus --one of the largest world wide and respected marine accessories manufacturer uses PVC exhaust fittings.

Here we have professional engineers and boat builders who say it wont work and you wont get out of the dock or it wont even idle.


And look at the silly little drain that Vetus uses. Mine may be from the garden center but is far superior than a threaded cap.

Does this plant the hammer square on the nails head or what.

http://www.winchsolutions.com.au/vetus-marine-waterlock-muffler/

My pipes are 4mm wall far exceeding Vetus specifications. Boy do I feel good now!!! Thanks Afteryou

 

Are you certain these are the same plastic?

Other Vetus exhaust system components are rated for much higher temperatures than your system:

Vetus rubber hose:
In order to reduce back pressure in the engine, the inside of all VETUS exhaust hoses is completely flush and smooth. VETUS exhaust hoses have Lloyd’s Register of Shipping approval and also meet the requirements of the SAE J2006 R2 standard. They are temperature resistant between -30° (- 22 F) and + 100°C (+ 212 F), with brief peak temperatures of 115°C (239 F)

Vetus Silicone Hose:
It has a tremendous temperature range and can be used continuously from - 54° (- 65 F) to + 177°C (+ 350 F) (intermittently up to 250°C (482 F)). VETUS silicone hose fulfills all requirements of the ISO13363 type Class B and SAE J 2006 R1 standards.

These manufacturer rated temperature are substantially higher than your plumbing PVC pipe rating of 60°C (140 F)

 

I wa'snt aware that my pipes were rated. Im willing to accept that at 4mm wall they were made for heavy duty use --if thats the case then we have the answer.

Thing is i've handled these Vetus things, I even removed one form my last PVC fitting project. By feel alone it was just PVC.

Gentlemen --your just going to have to get your head round this. Water can not exceed boiling point and PVC is capable of handling it.

There is writing on the side of my pipes --Ille go and read what it says .. Perfectly legible ,----even after 10 years.


Edit HIGH QUALITY VINIDEX 100MM PVC DWV FC FOAM SN6 05092 11

It was bought a Bunnings an Australian hard ware shop.

 

That is not correct.
Water boils at 100 C / 212 F
Standard household PVC pipe is rated for only 60 C / 140 F
Much of this discussion could be pointless if the pipe used is not standard PVC.

 

I wonder why they need that? Do you have one, Frosty?

 

I give up. We've just done about a whole page on allarms.

Just go make your 50 kilo stainless pipe system --I hope you will be very happy with it. Then you can run the engine at full power with no water and alarms screeming as you sip your gin and tonic with your MP3 in your ear holes.

 

It's vodka.

 

I did not read the info before -- Seems Vinidex is a big company, lots of info but I dont care,-- they work . The reason for that maybe in the pages and pages of info.

I don't need to know!

Vetus water locks are the fist part of the system and will be pretty much the hottest part. They are made of plastic according to Vetus, Thats ridiculous --they will melt. Wont they.

Vetus makes serious stuff and if there are rules such as 2 minutes running with no water how much damage to the engine would occure let alone a plastic replacable pipe.

No link on that one yet

 

Think it was $1500,can support 2 people to a depth of 25' and came with a float.

Well spent as it paid for itself the first 2 weeks in retrieving a snagged anchor,bottom cleaning,and retrieved my cell phone..

For myself,I don't know enough of the dynamics so was happy to buy it and not have a chance of drowning myself.

 

Yeah well you can still drown yourself dead if your not careful even forgetting to breath out on the way up would do it. The world is so dangerous these days.

Mine is 1.5 meters tops I know what it can do and thats all I want it to do, clean the props.

 

Not drowning is usually a good thing .

 

Those temperature ratings also are considering that most PVC like this will have a fresh water internal PSI pipe pressure of upto 75psi.
You wont see that on an exhaust pipe.

My bringing up the backfire issue is if those with a gasoline engine might be tempted to do this, so dont do use it.
A backfire can blow out a steel muffler and I think hot PVC would be easier to breach.

fun video but this can happen if the engine misses badly.
http://www.youtube.com/watch?v=tDvmjk6LHYU&feature=related

 

Quote:
Originally Posted by Frosty
There is an MOT on cars to stop dangerous vehicles on the road. A Wharram needs taking away.

Quote FMS
This view is inconsistent with your engineering of your own exhaust system from
plumbing pipe not rated for high temperatures. Quote

I have brought you query over to the correct thread for you so as to respond.

We have been over this many times but for you it seems once more is required. NO-- the pipes have no specific temperature rating and if they did is exceeding that rating for discoloration , decay or turning brittle or just general deterioration?



Once more VINIDEX heavy duty polymer re enforced PVC is the material used


Again the pipes have been on test in the field run at high RPM over 10 years. Im sure anyone can see that --OBVIOUSLY they must be rated for high temps.

10 years is enough for me and for most tests. 4-5 hours would be enough for most people. I consider it 100% successful or would you think 20 or 30 years be more conclusive.

I have explained that I have dismantled them some 5 or 6 years ago to check the interior with no visible discoloration AT ALL.


Vetus does not even call their exhaust products PVC but the word plastic is used.

Your insistence in your opinion my pipes are in some way inferior shows some stubbornness in your grasp of simple testing procedure and it has'nt escaped my attention that your now the only one left confused and skeptical.

I came across another boat forum with similar arms up in the air by amateur engineers proclaiming disastrous consequences and to remove them immediately. It came to light at a later post that the boat was previously owned by a marine surveyor.

The problem lies not with the pipes but your inability to understand.