Can raised and recessed face flanges be used for flanges on low-pressure equipment?
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As the title suggests, it is a device designed for a pressure of 0.6 MPa, and the medium involved is highly hazardous. Is it acceptable to use male-female flanges in this case?
This post was last edited by SDHZZXM on 2016-9-6 at 11:46. Since the medium is highly hazardous, it is recommended to choose accordingly... If the pressure is not very high, raised face flanges can also be used.
Why use concave and convex surfaces? How difficult is it to install gaskets?
It can be used without problems; however, the relative cost is high and the economic viability is poor. A convex surface option will suffice, but it’s essential to choose a butt-weld flange along with gasketing strips equipped with reinforcement rings.
The type of sealing surface – whether it is a convex or concave surface – does not matter, but for installation, butt-welded flanges are the preferred choice; socket-welded and slip-welded flanges should be avoided as much as possible.