Companion Flange
- Available with all common casing and tubing threads in all flange sizes, pressures and trims.
- Hot-dipped galvanized flanges conform to ASTM A153.
- Companion flanges threads conform to ASME B1.20.1.
- Technical Specification
- More Details
- Contact Us
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
Connection: Bolted or Studded
Surface Treatment: Anti-Rust Oil, Transparent/Yellow/Black Anti-Rust Paint, Zinc, Hot Dipped Galvanized.
Temp Class: K-V
Material Class: BB, CC, DD, EE, FF
PSL Rating: PSL1, PSL2, PSL3
PR Rating: PR1, PR2
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.
Learn More When Inquiring
Buyer’s Guide
Please send us your inquiry with detail item description or with Model number. If there is no packing demand we take it as our regular exported standard packing. We will offer you an order form for filling. We will recommend you the most suitable model according to information you offered.
We can give you really high quality products with competitive price. We have a better understanding in Chinese market, with us your money will be safe.
Get Quick Response
Lake Petro is located in Dongying City, which is famous for Shengli Oilfield and the largest manufacturing hub of petroleum equipment in China. Following the principle of “quality first, science and technology innovated, people oriented”, every Lake Petro person is sparing no effort to provide the customers with best products and services. Our products are based on advanced production line and testing equipment, our products are designed and manufactured according to certification of ISO, GOST, etc.