Blind Flange

Blind Flange 

The blindflange is a popular type of pipe flange. It has nobore in the middle and is primarily used to close the ends of piping systems. The blind flange permits easy access to a line once it has been sealed. It can sometimes be machined to accept a nominal sized pipe to which a threaded or weldedreduction is being made. Our blind flanges areavailable in various sizes and materials for you to choose from.

Production Size Range

Slip-On Weld Flange: 1/2”~80” 21.3~2032mm

Wall Thickness

Class150, class 300, class 400, class 600, class 900, class 1500

Technical Specifications and Steel Grade of the Blind Flange

Carbon Steel:ASTM/ASME A105

Alloy Steel: ASTM/ASME A182 F1, F2, F5, F9, F10, F91, F92, F911, F11, F12, F22

Stainless Steel: ASTM.ASME A182 304, 304L,304H, 304N 316, 316L, 316LN

SIANO is an experienced blind flange manufacturer based in China. We also provide hotdip galvanized welded steel pipe, cold drawn seamless steel pipe, spiral weldedsteel pipe, pipe tee, and pipe elbow, among others.