Spectacle Flange

Spectacle Flanges are generally applied to permanently separate pipe systems, or just to connect with each other. A spectacle blind is machined from a single piece of metal that is cut to match the pipe size, fit between two pipe flanges and requires an additional gasket when it is installed. Also, the bolts will need to be lengthened depending on what piping class and size blind is used. The thickness of the spectacle blind is specified based on the line pressure and pipe size.
One end of the blind will have an opening to allow flow through the pipe during operation and the other end is solid to block flow.
 

Products List

Spectacle Blind flange ASME B16.48, 20 Inch, Class 150, A516 GR70
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DW SPF-4

China Spectacle Blind flange ASME B16.48 manufacturer Duwa offers Spectacle Blind made acc.to ASME B16.48, 20inch, Class 150, Material A516 GR70.
Spacer Ring Flange A516 GR 60
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DW SPF-3

China Ring Spacer Flange Manufacturer Duwa supplies ASTM A516 GR60 Flat Face Ring Spacer Flange, ASME B16.48, 1/2-24 Inch
Paddle Blind Flange A516 GR60 GR70, CL150-2500, 1/2-24 Inch
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DW SPF-2

China Paddle Blind Flange Manufacturer Duwa Piping Supplies Paddle Blind Flange, ASME B16.48, A516 GR60, A516 GR70, CL150-2500, 1/2-24 Inch.
Spectacle Blind Flange A516 GR60, GR70, CL150-2500, 1/2-24 Inch
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DW SPF-2

China ASME B16.48 Spectacle Blind Flange Manufacturer Duwa offers ASME B16.48 Spectacle Blind Flange, A516 GR60, A516 GR70, CL150-2500, 1/2-24 Inch.