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copain 
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Joined: 10 August 2007 Location: Netherlands Status: Offline Points: 182 |
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 Topic: WaterhosesPosted: 18 May 2008 at 16:15 |
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Hi all,
You probaly remember my previous post "This boat is haunted"
The bursted tubes ! I now have found the manufacturer of them and when you have a look at their site, all of you with hoses like this in a pressurised area. THESE ARE LOW TEMPERATURE VACUUM TUBES.
Yours will go to bits if you don't change them !
Have a look at the following info on:
The spiral is there to prevent them from collapsing and they cannot stand high temperature pressure at all.
I had an engineer on board to service my engine after the first 50 hours here last fryday who told me to get rid of those hoses and get something decent in stead. The engine coolingwaterhoses are of the same quality.
In the mean while I have send ralco-tubings the following mail:
"I would like to know if I can use your Armoflex 12 x 18 mm for a hot water pressure system and to what pressure I can go before failure ?
Could you also tell me the maximum bending radius and if the tubes are resistant to constant vibration?" Regards, Willem Edited by copain - 18 May 2008 at 16:49 |
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s/y Copain (Beneteau 281)
from march 2008 Hanse 350 # 061 Visit my BLOG op http://www.wsv-haringvliet.nl/blog/maatje/ |
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Peter-Blake
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Joined: 04 March 2008 Status: Offline Points: 2471 |
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Posted: 18 May 2008 at 17:56 |
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Thanks copain for sharing. Keep us updatet on that. I am worriing about the hoses too. I will have a look an mine, because as i remember (i am not on my boat) the hoses on my boat are blue and look a bit diffrent. May be i am wrong. But i will check it next weekend, where the transparent hoses go.. I found some pictures of my boat. They used diffrent ones. i will have to check, if these are heatet ones next time i use my boat.
I will report.
Motor You see diffrent hoses:
 Pumps in bathroom for Water and drainage of shower
 Bilgepumps
 Does it look the same on your boat copain?
And one more question: was it on your boat the hot water hose or cold water hose which burst?
 Because the hot water hoses on my boat starting froim the waterheater look white like this:
 Edited by Peter-Blake - 18 May 2008 at 18:23 |
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Blake 370
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panos
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Joined: 02 March 2008 Status: Offline Points: 1939 |
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Posted: 18 May 2008 at 19:11 |
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Hi Blake,
The hoses in your boat look OK. I can't read the label on the blue hoses connecting the engine coolant with the electric water heater. If they are certified for 100 degrees Celsius then everything is OK!
Did you add all those bilge pumps, or are they standard?
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Panos
Hanse 630e - selling her - |
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copain
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Joined: 10 August 2007 Location: Netherlands Status: Offline Points: 182 |
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Posted: 18 May 2008 at 19:15 |
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Hi Peter,
The blue hoses are the ones to your boiler and are the proper ones, although you would expect them to be red, while they become hot.
Where I live red is hot and blue is cold. I think they will be ok but it will be the next thing I will sort out.
As far as the transparent ones are concirned I think as long as they are on the suction side they will be ok ( being vacuum hoses) , but on the pressure side (cold or hot) they will not be ok since they are not ment for hot (over 60 degr C )pressure hoses. The pressure with these Jabscopumps is 3 bar at least. That needs a serious strong tube. I would suggest for you to wait on the answer from Ralco-tubings I send the mail to and we will talk again.
I think you should change all the transparent ones to better ones. Never had these questions on my previous boat a Beneteau 281. Although the Beneteau was a poor sailer, the quality of the used materials was without any question.
Regards, Willem
Edited by copain - 18 May 2008 at 19:23 |
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s/y Copain (Beneteau 281)
from march 2008 Hanse 350 # 061 Visit my BLOG op http://www.wsv-haringvliet.nl/blog/maatje/ |
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Peter-Blake
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Joined: 04 March 2008 Status: Offline Points: 2471 |
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Posted: 18 May 2008 at 19:19 |
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@panos
all you see is standart
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Blake 370
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Peter-Blake
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Posted: 18 May 2008 at 19:20 |
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@copain,
i will wait for your response. I postet the fotos to compare with your boat. ;-)
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Blake 370
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panos
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Joined: 02 March 2008 Status: Offline Points: 1939 |
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Posted: 18 May 2008 at 19:55 |
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Hi all,
Looking to the pictures is obvious that the transparent hoses -with the spiral metal inside- are used at the suction side of the bilge pumps(2nd and third picture) and the suction part of the wet exhaust system (1st picture)-looks correct to me. Also the pressure side of the bilge pumps is connected to something looking like a normal garden hose- which is also OK since they withstand pressures of about 6 bar. Edited by panos - 18 May 2008 at 20:03 |
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Panos
Hanse 630e - selling her - |
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Johan Hackman
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Joined: 24 August 2005 Location: Sweden Status: Offline Points: 4361 |
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Posted: 18 May 2008 at 21:18 |
I am curious about the electric bilge pump. I tried to Google the pump using what I could see of the make and model number on the pump, but got no useful hits. It looks a bit more robust than the others I have seen and I wonder if it also is of a different type. Johan Edited by Johan Hackman - 18 May 2008 at 21:18 |
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Peter-Blake
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Posted: 18 May 2008 at 21:25 |
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@Johann
It is a Vetus EBP 80. You will find it if you google
Or see this link
I think it is a good one. On other boats i saw smaller ones...
Edited by Peter-Blake - 18 May 2008 at 21:26 |
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Blake 370
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Richard108
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Joined: 02 October 2006 Status: Offline Points: 263 |
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Posted: 19 May 2008 at 01:16 |
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The spiral metal in my transparent hose that was connected to my water pump corroded and a hole was created in the hose as a result. My Hanse 540 is 9 months old.
I was lucky that I was there and heard the water pump working and pumping water into my bilge and was able to fix it before having to much of a mess.
I would recommended replacing ALL of these transparent hoses with spiral metal in them where ever they are. Edited by Richard108 - 19 May 2008 at 01:17 |
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Regards Richard
("Moksha" 540 #115 delivered Sept 2007) Pittwater, Sydney, Australia |
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panos wrote: