Double Studded Adapters

DOYLES stocks a wide variety of Double Studded Adapters (DSA). They enable the user to transition from one size and pressure to another. Most sizes and pressure rating configurations are in-stock for immediate shipment. When the required size and pressure combination is not in stock, it can be manufactured or re-manufactured to fit virtually any combination. All DSA meet API 6A requirements. Typically B7 all-thread studs are installed with grade 2H nuts, but tapped-end and plated studs can be installed when specified at the time of order.

Size & Pressure Rating
2 1/16” X 5M To 3 1/8” X 5M
2 1/16” X 10M To 4 1/16” X 10M
3 1/16” X 10M To 4 1/16” X 10M
3 1/16” X 10M To 4 1/16” X 5M
4” X 150# To 6” X 900#
4 1/16” X 5M To 2 1/16” X 5M
4 1/16” X 5M To 3 1/8” X 5M
4 1/16” X 2M To 4 1/16” X 5M
7 1/16” X 10M To 13 5/8” X 10M
7 1/16” X 5M To 13 5/8” X 5M
7 1/16” X 2M To 8” X 600#
11” X 15M To 18 3/4” X 15M
11” X 5M To 13 5/8” X 5M
13 5/8” X 10M To 11” X 10M
13 5/8” X 3M To 16 3/4” X 2M
13 5/8” X 10M To 18 3/4” X 15M
13 5/8” X 5M To 18 3/4” X 15M
18 3/4” X 15M To 20 3/4” X 3M
20 3/4” X 3M To 18 3/4” X 15M
21 1/4” X 2M To 18 3/4” X 15M
26 3/4” X 3M To 20 1/4” X 3M
26 3/4” X 3M To 21 1/4” X 2M
30” X 300# To 21 1/4” X 2M
30” X 1M To 26 3/4” X 3M