Talk:Double check valve
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Double Check Valve Assembly (DCVA) vs. Dual Check Valve (Duc)
[edit]This article is clearly about the former, but the latter also redirects here -- even though this article doesn't actually discuss the latter.
Despite the similar names and purposes, these are two distinct kinds of devices. They differ in features and in what applications they are suitable/permitted for.
Either this article needs to address both (comparing and contrasting them), or there need to be two separate articles (with one NOT redirecting to the other). — Preceding unsigned comment added by 2601:601:E03:EBC0:C8C:C7F7:DBEF:79E9 (talk) 20:48, 12 March 2019 (UTC)