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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Elephant trunk breather
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<blockquote data-quote="timetraveller" data-source="post: 99878" data-attributes="member: 456"><p>Nothing much is being said about the 'duck bill' one way valves that were mentioned a year or so ago. Apparently these are supplied with some of the Indian made Enfields and consist of a thin rubber tube which is shaped as a flattened slit at one end. Exactly the same principal is used on most boat toilets where they are called 'joker valves'. In the toilet case they are larger, about 40 mm diameter to let waste pass through in the outwards direction and prevent sea water going in the other direction. Many thousands, possibly hundreds of thousands, of these are produced every year and they just work. Has anyone on this forum actually used one of the Enfield ones and did you find it useful?</p></blockquote><p></p>
[QUOTE="timetraveller, post: 99878, member: 456"] Nothing much is being said about the 'duck bill' one way valves that were mentioned a year or so ago. Apparently these are supplied with some of the Indian made Enfields and consist of a thin rubber tube which is shaped as a flattened slit at one end. Exactly the same principal is used on most boat toilets where they are called 'joker valves'. In the toilet case they are larger, about 40 mm diameter to let waste pass through in the outwards direction and prevent sea water going in the other direction. Many thousands, possibly hundreds of thousands, of these are produced every year and they just work. Has anyone on this forum actually used one of the Enfield ones and did you find it useful? [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Elephant trunk breather
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