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Old 22 May 2015, 02:04   #1
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Country: UK - Scotland
Town: edinburgh
Make: seamax E Marine
Length: 3m +
Engine: mercury petrol
Join Date: Dec 2014
Posts: 14
Air Valve help please

I recently bought a tidy 3.3m Pro Marine dinghy second hand as a backup. I was told at the time that the valves would need replaced as he had broken the spring loaded valve stems on three of them,no problem I thought.
Popped along to the local chandlers to buy a few replacements and brought one of the valves from the dinghy with me to make sure they matched.
I found that the threads were different.
On my valves there are six rows of threads the ones in the shop had nine threads which were a lot finer but the dimensions seem to match

http://www.rib.net/forum/attachment....1&d=1432273129

so I got back home and phoned a couple of the more well known dealers and described the valve to them . Both had the nine threaded valve .
The dinghy holds air no problem once the caps are fitted but I do get a loss of pressure before I can get the caps on so the tubes are not as firm as they should be .
I don't fancy going out with dodgy valves so I thought I would ask the members here if they might know where I could get replacement valves.
I'm new to sibbing so my knowledge of whats available is limited in fact I'm still waiting for the weather to calm down to get my first fishing trip .
Someone did mention getting new valves and cutting out the old ones and using doublers but I would prefer to find replacements if possible as I'm not sure it's a job I would like to tackle.
Any help in finding replacements would be much appreciated
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Old 22 May 2015, 03:35   #2
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Country: UK - England
Town: Manchester
Boat name: Serenity,PuddleHound
Make: Avon R310,Prowave380
Length: 3m +
Engine: Johnson10,Mariner10
Join Date: Oct 2014
Posts: 209
I've just had to have one of mine replaced. took it to a tube refitter where we bought out 9 (yes 9!) almost identical valves which all have very slight changes in the thread pitch/size! and perhaps unsurprisingly it didn't fit any of them!

I ended up having both floor valves replaced with something I could easily get hold of again and would fit my existing pump adapter.

You could give North west ribs and inflatables a ring/email and send them the pictures. they might be able to identify it. That's where I took mine and they were fantastic. I know they're a bit far from you to visit but they can post you parts.
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Old 22 May 2015, 03:43   #3
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Country: UK - Scotland
Town: edinburgh
Make: seamax E Marine
Length: 3m +
Engine: mercury petrol
Join Date: Dec 2014
Posts: 14
I'll give them a try today, thanks.
It would be a lot easier if there was not as many different valves on the market!
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