What kind of fender valves is this?
- Thread starter dune16
- Start date
lustyd
Well-Known Member
Polyform?
fisherman
Well-Known Member
I used to use a shaved down tyre valve, but the average 12v tyre pump from Lidl or Halfords has tapered adapters that do a good job. Both have to be held in place.
rogerthebodger
Well-Known Member
I am looking for someone to fill my fenders with flexible foam rubber so no air , valves of punchers of finders any more
dune16
Well-Known Member
fisherman
Well-Known Member
Yerbut, it's the old problem. Is the filling going to absorb water when the fender is punctured? Heavy after that, and the squeezing and letting go will ensure water is sucked in.
Rope fenders?
Bran
Well-Known Member
remove the bung with a screwdriver, dont need a special adapter I just used an air blower directly on the fender. You do need to hold it against the fender with a fair amount of force to overcome the initial pressure to open the valve.
wonkywinch
Well-Known Member
Is it a Majoni as they say "the best way to inflate their fenders is to push air pressure from a compressor, with a flat head against the valve. Majoni warn that the use of a needle type adaptor will damage the valve".
Majoni Fender Guide | Majoni Inflation Guide | Jimmy Green Marine
Majoni Fender Guide | Majoni Inflation Guide | Jimmy Green Marine
fisherman
Well-Known Member
Yes, confirm that.
lustyd
Well-Known Member
It's not a Majoni, they are metal and have a thread inside. The Majoni needs a compressor, the valve is extremely stiff so a bike pump doesn't get through
fisherman
Well-Known Member
Yes, you need a car tyre inflator. used to stop at Tesco on the way to sea.
lustyd
Well-Known Member
Presumably that was before they charged a pound for the inflator.These days it's probably cheaper to ask a chandlery!
Gsailor
...
Measure it and 3D print an adapter?
fisherman
Well-Known Member
That's why I got the Lidl model, £9.99. And it could go on the boat.
I used to inflate toy footballs for pot floats. They proved surprisingly resilient.
I was on the quay one day, inflating one, hung it over the car door and stepped back, to see how big it would go. It went very big. I stepped back further. It went huge, I hid behind the car, couldn't get near to switch off. It went off with a huge bang, all the gulls took off, and the folk outside the pub across the harbour dropped their pints.
Fenders don't need to withstand that pressure, so a Halfords/Lidl/Aldi/ebay model should be fine, just use the thin tapered cone adaptor.
Screwfix:
RAC Compact Air Compressor 12V - Screwfix
has the cone adaptor far left