Brief introduction of large diameter flat welding flange with neck

Brief introduction of large diameter flat welding flange with neck

As the name implies, the large-diameter flat-welded neck flange is a flat-welded neck flange used on pipes with relatively large diameters;

Large-diameter flat-welded neck flanges are mainly processed by CNC lathes, semi-automatic lathes, and drilling machines;

Large diameter neck flat welding flange
Specifications

DN15-DN1000

Pressure Level

PN6-PN100

Sealing surface type

Raised face (RF), full face (FF), concave-convex face (MFM), concave face (FM), convex face (M), tongue and groove face (TG);

Among them, the concave-convex neck flat welding flange (MFM) belongs to supporting use;

Large diameter so the flange
Material of large diameter flat welding flange with neck

carbon steel, stainless steel, alloy steel

Executive standard

Flat Neck Flat Welding Steel Pipe Flange-GB9116

Raised face neck welded steel pipe flange-GB9116

Chemical standard: HG/T20592-2009

National standard: GB/T 9116-2010

Connection Type

Single-sided welding, double-sided bolt fastening, the same as the flat welding flange connection;

Large diameter so the flange
Production Process

Integral forging or rolling, if it is a particularly large flat-welded neck flange, can only be produced by rolling;

Introduction of manufacturers of large diameter flat welding flange with neck

Due to the large diameter of the large-diameter flat-welded neck flange, there are certain requirements for the equipment of the flange manufacturer, so not every flange manufacturer can produce the large-diameter flat-welded neck flange. Only experienced flange factories can produce. Hebei Yanhao is such a large-scale flange manufacturer with many years of experience in flange production. Our flanges guarantee the quality and complete product models and can produce national standards, American standards, etc., complete materials There are stainless steel, alloy steel and carbon steel. The flanges produced by Yanhao are sold at home and abroad and are well received by customers. Once they cooperate, they will be recognized by customers. The product is a strong statement. If you are worried, we can provide free samples for you. For reference, at the same time, you can visit our factory for free. We will arrange board and lodging. We sincerely look forward to your visit!

Application Fields of Large Diameter Neck Flat Welding Flange

The chemical industry, electric power, sewage, wind power, municipal, aerospace, and nuclear industries are all used. As long as there are large pipelines or large pressure vessels, large-diameter flat welding flanges are used.

Purchasing advice

1: The flange manufacturer needs to provide relevant information such as the material inspection report of the flange;

2: Flange pieces need to have corresponding specifications and models stamped and identified.