What Year Did They Start Putting Anti Siphon Valves? [Solved]

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What Year Did They Start Putting Anti Siphon Valves? [Solved]

1929 The anti-siphon valve was patented in 1929, and it’s been one of our key products ever since. Even today, we utilize that valve in many applications and modify it for more modern components.22 Dec 2021

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Airvents (anti siphon valves) and yachts: how do they work and how do they protect your boat?

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