Frank Szmulowicz, Ph. D. Jan 20, 2022:

You have done an enormous amount of work, geopiet. It is a "dysk," for sure. It serves as a valve (zawór) and it consists of a single rotating assembly. Perhaps, "obrotowy" would also describe this valve.

geopiet Jan 20, 2022:

numer części 7199232 pozycja 25 - httt.ly/HAQQ - page 40

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pozycja 62 - https://www.viessmann-projektant.pl/baza-urzadzen/aquahome/p... - page 1

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pozycja 67 - https://cosmowater.pl/assets/Uploads/DTR-COSMOWATER-HOME-22.... - page 27

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pozycja 87 - https://www.hb-kotly.pl/files/337238059/imioaquahome20n30n01... - page 40

geopiet Jan 20, 2022:

3/4" Teflon Rotor Disc Valve Part # 7199232 https://www.thewaterguy.ca/catalog/view/34-teflon-rotor-disc...

geopiet Jan 20, 2022:

zawór sterujący https://cosmowater.pl/assets/Uploads/DTR-COSMOWATER-HOME-22.... - strony 26, 27

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REPAIR PARTS . . . VALVE ASSEMBLY - https://www.northstarwater.com/wp-content/uploads/2013/02/NS... - page 34

geopiet Jan 20, 2022:

control valves It may be necessary to re-build the valve assembly which, depending on softener model may be labelled in your parts explosion as "Valve Disc", "Rotor Disc", "Rotor Disc Valve", or "Piston Assembly".