Companion flange, adaptor flange :
adaptor flange(forged flanges, blind flanges, threaded flanges) provided by JEFA
are field proven flanges which strictly designed and manufactured
according to API 6A and API Spec Q1 forged or casted.
1.Standard:API 6A ISO9001
2.Socket welding/Thread/Welding neck
4.Size:2-1/16" to 13-5/8"
All kinds of adaptor flange are delimited by API 6A as following:
1.Welding neck flange: is the flange with a neck on the side opposite the sealing face
prepared with a bevel to weld to corresponding pipe or transition
2.Threaded flange: is the flange having a sealing face on one side and a female
thread on the other for the purpose of joining flanged connections
to threaded connections.
3.Blind flange: is the flange with no centre bore, used to close off completely a
flanged end or outlet connection.
4.Forged flange :is a special configuration of blind flange used downstream,
facing upstream, to cushion and reduce the erosive affect of high
velocity abrasive fluid. This flange has a counter bore filled with
Shanghai Jefa Machinery Co.,Ltd mainly specialize in API 6A
products as below:
1) Wellheads (casing/tubing head, crosses ,flange adapter,etc)
2) Valve (FC/FLS gate valve, mud gate valve, chock valve, etc)
3) Fitting(union, manifold,elbows),Bop.
B2P adaptor flange
|Bottom Flange size||Working pressure||Top Flange size||Working pressure||Approx.Weight|
|7 1/16"||3000||2 3/8UP TBG"||3000||140|
|7 1/16"||3000||2 7/8UP TBG"||3000||130|
|7 1/16"||5000||2 3/8UP TBG"||5000||160|
|7 1/16"||5000||2 7/8UP TBG"||5000||150|