济宁东宏机械设备有限公司
Jining Donghong Machinery Co., Ltd
Quality supplier of drilling rig parts for Bomco,Lanzhou LS, Honghua, Sj petro, Rg Petro, Beijing BPM, Shenkai, Kingdream, CCDC

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Double Studded Adapters(D.S.A) 
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DSA - Double Studded Adapter flange is the part which is often used in the wellhead system, DSA is designed and manufactured in accordancewith API 6A standard,DSA usually has double studded flange connections. we haveall sizes and pressure ratings DSA used for oilfield applications.

Our customizable DSA allow customers to design their ideal DSA for reliable and consistent performance on their production system.

Avalability Specification

Working  pressure

2000PSI-20000PSI

Working  medium

oil,natural  gas,mud

Working  temperature

-46-121℃(L-U

Material  class

AA  –HH

Specification  class

PSL1-PSL4

Performance  class

PR1-PR2

DSA inquiry information

Customers may customize their purchase through the followingdata:
• Working Pressure
• Type of top & bottom Connection
• Material Class

Technical Specifications of DSAF (Double Studded AdapterFlange)

DSAF Description Flange thickness (T) (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” x 10M 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

21-1/4” x 2M To 18-3/4” x 15M 256