BS4504-1 TYPE 111 (Welding Neck) stainless
Steel Flange is a special kind of flange in the BS4504 flange standard, commonly known as high-diameter flange. Different from other
Flanges, it welds the pipe and the groove at the top of the flange and connects them, so it is also called butt welding flange. Bs4504 high diameter (Welding Neck) flanges are often used in pipe network systems, usually PN16 flanges, PN25, PN40 medium and low pressure flanges are the most conventional and widely used.
BS4504-1 TYPE 111 (Welding Neck)
Stainless Steel Flanges are pipe fittings that connect pipes,
Valves, pumps and other equipment to form a piping system. It provides convenience for the cleaning, inspection and maintenance of the pipeline.
When in use, the special welding rod is evenly welded on one end of the pipe to connect with the pipe, and the special welding rod is evenly welded on the two ends of the pipe, and then the connection is fastened with
Bolts to effectively connect the pipes, valves, pumps and other equipment accessories, so that the The whole pipeline came together and started to work properly.
The biggest features of BS4504 stainless steel flanges are good stability, strong corrosion resistance, acid and alkali resistance, and are widely used in pipeline systems in chemical, pharmaceutical, food, pharmaceutical and other special industries.
It is an indispensable pipe fitting that must be used in pipeline systems and equipment such as machinery, petroleum, chemical industry, water conservancy, medicine, food, and paper making.
Our BS4504-1 TYPE 111 (Welding Neck) stainless steel flanges are made of standard material, finely processed and priced in line with market demand. According to the needs of different markets and different customers, special shaped manufacturing can fully meet the requirements of customers and markets for different flanges. And we will inform customers of market needs so that they can quickly expand the market.
(Welding Neck) Flange Type:
According to the model can be divided into: BSEN TYPE 11, BS4504 TYPE 111, DIN2631-DIN2638,
According to the pressure can be divided into PN16, PN10, PN25, PN40, PN63
According to the process can be divided into: forging flange, casting flange
According to the material can be divided into: 304,304l,316,316l,321,201
BS4504 TYPE 111 (Welding Neck) carbon steel flange production process:
1) a: Forged flange
Cut stainless steel circular hacksaws of different specifications and models into cylindrical flange blanks, add them to a reverberatory furnace and heat them to 1300 degrees to take out, and then forge the flange blanks into gyro-shaped flanges by forging presses, air hammers and other forging machines.
b: cast flange
In view of the characteristics of stainless steel, cast stainless steel flanges are mostly made of precision casting. First, put high-quality stainless steel quasi waste into the intermediate frequency furnace for heating, and add non-ferrous metals such as Ni to ensure the stability of the material. When the molten steel melts to 1500-1800 degrees, pour it into the mold to form a gyro-shaped flange blank.
2) Put the formed gyro-shaped flange blank into the annealing furnace for annealing treatment to ensure the stability and consistency of the ring blank material
3) The annealed gyro-shaped flange blank is processed into a flange on a CNC machine tool according to the drawing, and then the flange is drilled with a CNC drilling machine according to the drawing requirements, and the finished product is completed.
4) For the finished flange, the thickness, hole diameter, center distance, inner and outer diameter of the flange shall be inspected according to the drawing requirements.
5) The flanges that have passed the inspection will be laser-printed on the flange end face according to the customer's requirements, and the flanges will be individually packaged according to the customer's requirements, and then put into wooden boxes for transportation.
Contact Now
