Hose Clamp wars

> 10 years ago
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Karsten
Karsten
NSW
331 posts
NSW, 331 posts
23 Dec 2012 12:30pm
I'm getting sick and tired of finding hose clamps with rusted or just rusty-looking bolts and threads, especially those in damp areas like the bilge and the engine wet exhaust line. Sadly, some of these clamps are made by Tridon Australia and labelled "all-stainless" (could be 302/4, definitely not 316). Also don't like the perforated bands on Tridon clamps. We're talking worm-drive rather than T-bolt style clamps here.

So, searching some web forums it seems that many boat owners swear by all-stainless clamps made in Sweden by AWAB. Bit confusing, but it appears possible that the related brand ABA is equally good. The problem with most clamps is they rust where the water accumulates inside the thread housing, but it seems that the Swedes' clamps survive better than others.

Now that's all hunky dory, if I could just get some of them in Australia. I know I can order them from the UK and probably the USA, but who wants to wait two weeks for a dozen hose clamps with shipping often costing quite a bit, especially if they use Fedex or DHL as some US stores prefer to do.

Anyone come across these AWAB/ABA clamps in Aus (size 25mm and up)?

Or know about equivalent quality, all 316, non-perforated band, hose clamps in Aus?

Alternatively, anyone know what the prof fishermen use, or have good long term experience with another brand of ss316 clamp in the bilge or in contact with seawater?
Ramona
Ramona
NSW
7757 posts
NSW, 7757 posts
23 Dec 2012 7:31pm
Just use the non perforated type and always use two on all hull fittings. Not much you can do about corrosion in the stainless clamps apart from arranging the clips so that water does not collect in the screw section. Two clamps are always needed for vessels in survey and is worth the extra insurance on amateur boats. Its fairly rare that both clamps will fail at the same time and the occasional inspection is worth the bother.
cisco
cisco
QLD
12365 posts
QLD, 12365 posts
24 Dec 2012 1:18am
Wot he said. There is no substitute for correct fitting and regular maintenance.

We would all like to set and forget but the marine environment don't let you do that.
Ramona
Ramona
NSW
7757 posts
NSW, 7757 posts
24 Dec 2012 8:21am
Yes a visual check every now and then never hurts. Rubber hose onto bronze skin fittings will tend to stick and seal after awhile even when both clips have broken. Good routine to get into is to check when you switch on the battery each day. Attach the engine key to a wooden tag and hang it on the inlet seacock so that you open it as you get the key.
garyk
garyk
QLD
277 posts
QLD, 277 posts
9 Jan 2013 2:07pm
Hi Karstan,
Titanium hose clamps are the go... but good luck on your search!
Wurth have good quality 316 hose clamps, a lot better then Trident and they don't cut into your hoses.
LooseChange
LooseChange
NSW
2140 posts
NSW, 2140 posts
9 Jan 2013 3:29pm
garyk said...
Hi Karstan,
Titanium hose clamps are the go... but good luck on your search!
Wurth have good quality 316 hose clamps, a lot better then Trident and they don't cut into your hoses.


Interesting, went looking and found www.titan-marine-hardware.com/titanium-hose-clamps.htm plus also have a look at their through hull fittings. Certainly are more than cost competitive.

Having read the blurb on the site about how great Titanium is ... next question, why not titanium chain plates because as I understand it if titanium has access to oxygen then it will never corrode.
garyk
garyk
QLD
277 posts
QLD, 277 posts
9 Jan 2013 2:41pm
The problem with titanium is limited supply and industries eat up the stock before it reaches the shelves. I also like the idea of uranium as ballast but try and find that stuff haha...
LooseChange
LooseChange
NSW
2140 posts
NSW, 2140 posts
9 Jan 2013 5:08pm
Yes, I imagine that most of the worlds supplies of depleted Uranium are being used as projectiles in Phalanx Close-In Weapons System.

However I do recall that a few years ago I think it was one Club Meds boats had a keel built from depleted Uranium, courtesy of the French Government.
Karsten
Karsten
NSW
331 posts
NSW, 331 posts
10 Jan 2013 1:50am

Titanium would be good; for me it would work out cheaper in the long run because I would not have to replace clamps in the bilge every few years. However, if you go to the Titanium web site you will note that they are "out of stock", and I have been told that this has been the case for well over six months.

Thanks Garyk for the tip about Hurth 316 clamps. My initial quick web search found some Hurth clamps from auto shops in Aus, but galv version only. Will keep looking.

Ramona
Ramona
NSW
7757 posts
NSW, 7757 posts
10 Jan 2013 8:28am
The titanium ones look nice but are perforated. I would want to hear from someone who has had some in service for awhile to see how they last. At that low a price and a perforated design I'm not confident.
LooseChange
LooseChange
NSW
2140 posts
NSW, 2140 posts
10 Jan 2013 2:27pm
Ramona said...
The titanium ones look nice but are perforated. I would want to hear from someone who has had some in service for awhile to see how they last. At that low a price and a perforated design I'm not confident.


I too thought that when I saw them but then thought why would you make something out of a very expensive strategic metal only to have it fail in a short time. But as you say, lets hear from someone that has used them.
Karsten
Karsten
NSW
331 posts
NSW, 331 posts
10 Jan 2013 7:17pm
Corrosion damages and weakens metal. I mostly get corrosion in the screw housing - it tends to seize up. I don't like the look of a hose clamp where the screw housing bleeds rust; how can you know what's going on inside there? And if you don't know, do you just hope it's not too bad?

If the clamp screw housing never corrodes (like titanium), I'll live with perforated bands even though I don't like them.
LooseChange
LooseChange
NSW
2140 posts
NSW, 2140 posts
10 Jan 2013 8:50pm
garyk said...
The problem with titanium is limited supply and industries eat up the stock before it reaches the shelves. I also like the idea of uranium as ballast but try and find that stuff haha...


books.google.com.au/books?id=aOIDAAAAMBAJ&pg=PA32&lpg=PA32&dq=club+med+sailing+ship+Uranium+keel&source=bl&ots=NyRPG61yZ7&sig=9OyZzvZekNpiH8q-Fxw5YFmdvxc&hl=en&sa=X&ei=9H3uUMXfJMGUiAK-q4DYDw

17 tons of the stuff to hold boat upright. Wonder where it is now.
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