GOST fogged steel flanges 12820-80 12821-80 12836-67

GOST carbon steel forged Flanges are the most widely used flanges in the world. GOST flange standards are widely used in Eastern European countries including Russia, Belarus, Ukraine, Kazakhstan and the original CIS countries. The flanges of GOST12820 and GOST12821P are The most conventional, the most popular, are used universally.
   GOST carbon steel forged flanges are a kind of pipe fittings that connect pipes, Valves, pumps and other equipment to form a piping system. It facilitates the cleaning, inspection and maintenance of pipes. Reduced engineering costs.
   During construction and use, the GOST carbon steel forged flanges are evenly welded at both ends of the pipeline, and then bolted to connect the pipelines, valves, pumps and other equipment accessories effectively, so that the entire pipeline is integrated and starts to work normally. .
   GOST carbon steel forged flanges are the most widely used pipe fittings in the pipeline systems and equipment of machinery, petroleum, chemical industry, water conservancy, electric power, shipbuilding and other departments in Russia and the former CIS countries.
   Our GOST Carbon Steel Flanges are standardized in materials, 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.
Types of GOST Carbon Steel Forged Flanges:
According to the model can be divided into: GOST12820, GOST12821
According to the shape can be divided into: GOST Slip-on FLANGES GOSTWELDING-NECKFLANGES
               GOSTBLINDFLANGES
According to the pressure can be divided into: PN6, PN10, PN16, PN25, PN40, PN63
According to the process can be divided into: forged flange,
According to the material can be divided into: carbon Steel Flange, stainless steel flange, alloy steel flange
GOST carbon steel forged flange Carbon steel flange production process:
1) Saw billets of different specifications and models into flange blanks, add them to a reverberatory furnace and heat them to 1000 degrees and take them out, and then forge the flange blanks into annular flanges by forging machines such as forging presses and air hammers.
2) The formed ring flange blank is processed into a ring 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.
3) For the finished flange product, the thickness, hole diameter, center distance, inner and outer diameter of the flange shall be inspected according to the drawing requirements.
4) Type the flanges that have passed the inspection on the end face of the flange according to the customer's requirements, and do anti-rust treatment to the flange according to the customer's requirements, 1: paint, 2: anti-rust oil, 3: galvanized, and then install it.