API Companion Flange,Companion Thread Flange,
AISI 4130 Companion Flange,
AISI 4140 Companion Flange(threaded flange)
C&N is a professional manufacturer of API flange in China,
API threaded Flange, API Companion threaded Flange ,API 5000PSI, 10000PSI,15000PSI flange,AISI 4130 Flange Nace MR 0175
A Companion Flange, sometimes referred to as a hub, is a flange that corresponds to another flange. It has bolt holes that align with another flange is a trait of this type of flange. Usually a companion flange features a Raised Face (RF) or Ring Joint (RTJ), with a threaded outlet. Also called a Threaded Flange by some people.
The companion flange is an important component of a pipeline, a plumbing system or wellhead christmas tree. In most situations, this flange is attached to the flange of another pipe and then the pipeline is assembled to fit tightly between the two flanges. A threaded companion flange is also used on a plastic pipe when adding a threaded iron pipe into the pipeline. Companion flanges can be used in the field or in a shop environment for various testing applications.
API Companion Flange Dimension
AISI 4130 Companion Flanges mostly used in Oil Field, Offshore etc.
We offer a wide variety of flanges, such as companion flange, union flange, threaded flange, crossover flange, weld neck flange, etc.
| Companion FLANGE | ||
| Companion FLANGE SPECIFICATION | CONNECTION THREAD | MATERIAL |
| 1-13/16″ 10000Psi | 2″LP | AISI4130 |
| 1-13/16″ 10000Psi | 2-3/8″EU | AISI4130 |
| 2-1/16″ 5000Psi | 2″LP | AISI4130 |
| 2-1/16″ 5000Psi | 2-3/8″EU | AISI4130 |
| 2- 9 /16″ 5000Psi | 2-7/8″EU | AISI4130 |
| 2- 9 /16″ 5000Psi | 2-1/2″LP | AISI4130 |
| 3 – 1 / 8 ” 5000Psi | 3 – 1 / 2 “EU | AISI4130 |
| 3 – 1 / 8 ” 5000Psi | 3 “LP | AISI4130 |
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.
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 pieces.
Blind flange is the flange with no centre bore, used to close off completely a flanged end or outlet connection.
| Flanges | Test flanges | K.L.P.R.S.T.U.V. | PR1 PR2 | DD,EE | PSL1~PSL3 |
| Weldneck flanges | K.L.P.R.S.T.U.V. | ||||
| Companion flanges | K.L.P.R.S.T.U.V. | ||||
| Blind flanges | K.L.P.R.S.T.U.V. | ||||
| Flange adapters | K.L.P.R.S.T.U.V. | ||||
| Spacer spools | K.L.P.R.S.T.U.V. |
Product Name: Companion Flange
Size: 1-13/16″ – 26-3/4″
Working Pressure: 2000PSI, 3000PSI, 5000PSI, 10000PSI, 15000PSI, 20000 PSI
Standard Material: AISI 4130(forged) 75K/ 410 Stainless Steel
Face Type: RTJ, FF, RF
Temp Class: K-V
Material Class: BB, CC, DD, EE, FF
PSL Rating: PSL1, PSL2, PSL3
PR Rating: PR1, PR2
Packing: Pallet/Plywood(Fumigation free)
Application: Oilfield Wellhead Christmas Tree, Pipelines etc
