Pool School · Plumbing and Valves
Flapper Check Valves
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The flapper style check valve has a flapper that is hinged at the top and swings up and down. The rubber seal on the flapper
provides a positive seal. |
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When water goes forward through the valve, the flapper swings up and allows the water through the valve. |
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When water attempts to go backwards through the valve the flapper closes and prevents the water from going through the valve. |
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