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DSAF Flange Thickness(mm)
2-1/16” X 5M To 3-1/8” X 5M 70
2-1/16” X 10M To 4-1/16” X 10M 80
3-1/16” X 10M To 4-1/16” X 10M 130
3-1/16” X 10M To 4-1/16” X 5M 80
4-1/16” X 5M To 2-1/16” X 5M 75
4-1/16” X 5M To 3-1/8” X 5M 83
4-1/16” X 2M To 4-1/16” X 5M 80
7-1/16” X 10M To 13-5/8” X10M 170
7-1/16” X 5M To 13-5/8” X 5M 150
11” X 15M To 18-3/4” X 15M 256
11” X 5M To 13-5/8” X 5M 144
13-5/8” X 10M To 11” X 10M 267
13-5/8” X 3M To 16-3/4” X 2M 150
13-5/8” X 10M To 18-3/4” X 15M 256
13-5/8” X 5M To 18-3/4” X 15M 256
18-3/4” X 15M To 20-3/4” X 3M 270
20-3/4” X 3M To 18-3/4” X 15M 256
21-3/4” X 2M To 18-3/4” X 15M 256
21-3/4” X 2M To 18-3/4” X 15M 200
26-3/4” X 3M To 21-3/4” X 2M 200
30” X 3M To 21-3/4” X 2M 175
30” X 1M To 26-3/4” X 3M 200

Other sizes and pressure ratings are available upon request.

Double Studded Adapter Flange (DSAF) or Double Studded Adapter (DSA) is a flange with a through bore and a ring groove on each side, drilled and tapped bolt hole sets on both sides and tapped end studs complete with nuts fitted on both sides. Unlike a spacer, the two sides are usually different in size and/or pressure rating. Double studded adapter flanges are commonly utilized to connect and adapt flanges with different nominal sizes, pressure ratings, and configurations. We also produce and supply other types API 6A flanges, such as threaded flanges, spacer spool flanges, blind flanges, companion flanges, target flanges, test flanges, and adapter spools for all client needs

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Please send us your inquiry with detail item description or with Model number. If there is no packing demand we take it as our regular exported standard packing. We will offer you an order form for filling. We will recommend you the most suitable model according to information you offered.

We can give you really high quality products with competitive price. We have a better understanding in Chinese market, with us your money will be safe.

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Lake Petro is located in Dongying City, which is famous for Shengli Oilfield and the largest manufacturing hub of petroleum equipment in China. Following the principle of “quality first, science and technology innovated, people oriented”, every Lake Petro person is sparing no effort to provide the customers with best products and services. Our products are based on advanced production line and testing equipment, our products are designed and manufactured according to certification of API, ISO, GOST, etc.