Forged WN Welded Neck Flanges DN20 150# class150 RF

Forged WN Welded Neck Flanges DN20 150# class150 RF

ANSI B16.5

Q235 Q355B C22.8 P250GH

Description

Weld neck flanges are the most popular flange type with a neck extension with a weld bevel at the end. This type of flange is designed to butt weld directly to pipe to provide a superior and relatively natural form connection. In larger sizes and higher pressure classes, this is almost exclusively the type of flange connection utilized. If only one bored flange style existed in modern applications, the weld neck would be your flange of choice.

The weld bevel joins to a pipe end with a similar bevel in a V-type connection which allows for a uniform circular weld around the perimeter to form a unified transition. This allows for the gas or liquid within the pipe assembly to flow with minimal restriction through the flange connection. This weld bevel connection is inspected after the weld procedure to ensure that the seal is uniform and lacking anomalies.

Product Parameter

Established in 1993 as a township enterprise

Cover an area of over 3 million square meters with staff of more than 5500.

Vice President Company of CANSI

(China Association of National Shipbuilding Industry)

Six main products series (4.3 million tons)
1. Welding Materials
2. Shipbuilding section
3. High-strength pre-stressed concrete steel bar
4. Forging ingot series
5. Steel ball series for bearing & mining industry
6. Flange & End Plate

As our develop strategy, we have been focusing on the complete production process mode which we deem will bring us synergy, so recently, another new product, i.e. welding consumables will be added to our catalog which will cover all series such as gas-shielded solid welding wire、flux cored wire、submerged arc wire、argon arc wire etc.

We have two main advantages for LT welding wires:
Fully integrated production process, i.e., with the support of upstream world class steel making facilities in house from same group company.
Newly developed production process with latest technology and know-how, i.e., fully automatic production which will be the assurance of quality control.