Oil Wellhead Double Studded Adapter Flange 21 1 / 4" X 5M -20 3 / 4" X 3M

Brand Name:JC Wellhead
Certification:API 6A
Model Number:21 1 / 4" x 5M -20 3 / 4" x 3M DSA
Minimum Order Quantity:1 set
Delivery Time:30-45 days
Payment Terms:T/T, L/C, D/P
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Address: No.25, Gaoxin 6th Road, Hi-tech zone, Xi'an, China
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Product Details

API 6A Wellhead Double Studded Adapter Flange 21 1 / 4" x 5M -20 3 / 4" x 3M


The Double Studded Adapter flange in 21 1/4" x 5M -20 3/4" x 3M is the connection wellhead part which is often used in the wellhead system. The DSA is designed and manufactured in accordance with API 6A standard. The 21 1/4" x 5M -20 3/4" x 3M DSA has double studded flange connections in different size or in different working pressure. JC petroleum equipment factory is able to manufacture all sizes and pressure ratings DSA used for oilfield applications as per the customers' requirement.


Technical information of the wellhead DSA


Product Name: Double Studded Adapter Flange (DSAF) or Double Studded Adapter (DSA)

Size: 1-13/16" - 30"

Working Pressure: 2000PSI, 3000PSI, 5000PSI, 10000PSI, 15000PSI

Material: AISI 4130(forged)/ SUS316/Inconel 625

Studs & Nuts Coating: Zinc Coated, Cadmium Coated, Xylan Coated

Temp Class: L-U

Material Class: AA, BB, CC, DD, EE, FF

Working Medium: Petroleum, Natural Gas, Mud etc

Product Specification Level: PSL1, PSL2, PSL3, PSL3G, PSL4

Performance Requirement: PR1, PR2


Specification of 21 1 / 4" x 5M -20 3 / 4" x 3M DSAF



1Top Conn.21-1/4"-5000 PSI
2Bottom Conn.20-3/4"-3000 PSI
3Test Pressure4500 PSI
4All Flanges Ring Groove inlaySS 316
5Ring GasketSBX-165 & RX-74
6PSL1
7TemperatureT
8Material classAA
9OALAS PER MANUFACTURER
10Studs (A193/Gr B7)2"x11-3/4"
11Studs Qty24
12Nuts (A-194/Gr 2H)3-1/8"
across FLATS
13Nut Qty24
10.1Studs (A193/Gr B7)2"x 10-1/8"
11.1Studs Qty20
12.1Nuts (A-194/Gr 2H)3-1/8"
across FLATS
13.1Nut Qty20
16Applicable API standard6A


About JC Wellhead


Jingcheng Petroleum Machinery Manufacturing Co.,Ltd was established in 2008, we are specialized in design and manufacturing of the oilfield wellhead equipment. We - YCJC are a registered supplier for CNPC, GWDC, CCDC in China.


YCJC also engaged in abroad marketing, through these years of efforts, our wellhead equipment is exported to many countries, such as Thailand, UAE, Iran, Brazil, Argentina, USA etc. and enjoyed good reputation from the customers.


The wellhead equipment we manufacture and supply include casing head, tubing head, casing spool, tubing spool, Gate valve, Choke valve, Check valve, X-mas tree, VR plug, Tubing hanger, casing hanger, Running tool, Wear bushing, spacer spool, flange adapter, union flange, Hammer union, Elbow, swivel joint, block cross, Block Tee, companion flange, instrument flange, weldneck flange, FC gate, FC seat, FC stem, API Clamp, API Clamp Hub


China Oil Wellhead Double Studded Adapter Flange 21 1 / 4 X 5M -20 3 / 4 X 3M supplier

Oil Wellhead Double Studded Adapter Flange 21 1 / 4" X 5M -20 3 / 4" X 3M

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