Reply To: Are Heat Trap Nipples basically check-valves?

The Tank Are Heat Trap Nipples basically check-valves? Reply To: Are Heat Trap Nipples basically check-valves?

#22616
Larry Weingarten
Participant

Hello: To answer your heat trap question: they are really not at all like either swing or spring check valves. They, on purpose cannot close off tight. The ball type check valves have slots in the seat so they cannot make a positive shut off and the rubber flapper type has no seat for the rubber to seal to. It can be pushed either way. Either type can be blown through. A good swing or spring check is air tight. 😉

Yours, Larry

Water Heater Rescue

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