flange union

flange union

[′flanj ‚yün·yən]
(engineering)
A pair of flanges that are screwed to the ends of pipes and then bolted or welded together to hold two pipes together.

flange union

flange union
In plumbing, a pair of flanges which hold two pipes together; the flanges are screwed onto the ends of the pipes and then are held together by bolts.
References in periodicals archive ?
The slotted DP plate can be placed between standard orifice flange unions. The orifice flange unions can be any size with pressure ratings up to 2,500 psi.