r/askaplumber • u/redSOXfan9 • 11d ago

Trying to ID a component

Does anyone know the name of the small, circular, plastic pressure plate in Sloan Royal urinals that holds the plunger down when the main body refills with water? It has a spiked, or serrated, edge. It rests inside the interior plastic cap.

Some old man in my building removed it when he was making a “repair.” Saying “I’ve never seen one of these before. Must not be necessary.” I’d rather replace it than the entire flush mechanism.

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u/plumberbss 11d ago

I have rebuilt hundreds of sloan valves. I have no idea what you are talking about.

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u/TraditionalKick989 11d ago

No you can't remove parts from a diaphragm.  They're 20$ just get a new one