ANSI B16.5 Class 150 Welding Neck Flanges

ANSI B16.5 150LB Welding neck American standard flange is made of high quality A105 (20Mn) material, forged by high pressure equipment. It is a special flange, commonly known as high-diameter flange, which has a welding groove at the top of its high-diameter. The use of WELDINGNECK flange is different from other flanges. And welding, connected, so it is also called butt welding flange. ANSI B16.5 A105 Welding Neck flange is the most widely used in the medium and high pressure system of industrial pipelines, especially in the pipeline systems of oil fields, natural gas, oil refineries, chemical plants and heavy industrial enterprises due to its excellent welding connection method. , the most commonly used.
   ANSI B16.5 150LB Welding neck American standard flange is a detachable connection. It is to fix two pipes, pipe fittings or equipment on a flange plate, and between the two flange plates, add a flange gasket and fasten them together with bolts to complete the connection. American standard flange connection is an important connection method for pipeline construction.
During construction and use, the American standard carbon steel flanges are evenly welded at both ends of the pipeline, and then fastened with bolts to effectively connect the pipelines, valves, pumps and other equipment accessories, so that the entire pipeline is integrated and starts to work normally. .
   ANSI B16.5 150LB Welding neck American standard carbon steel flange is the most widely used and most important pipe fittings in medium and high pressure piping systems and equipment such as machinery, petroleum, chemical industry, water conservancy, electric power, and shipbuilding.
    Our ANSI B16.5 150LB Welding neck American standard carbon steel flanges are made of standard 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 ANSI B16.5 150LB Welding neck American standard carbon steel flanges:
According to the model can be divided into: welding neck,
According to the pressure can be divided into: 150lbs,
According to the process, it can be divided into: forging flange, casting flange,
According to the material can be divided into: carbon steel flange, stainless steel flange, alloy steel flange
ANSI B16.5 150LB Welding neck American standard carbon steel flange production process:
1) a: Forged flange
Saw high-quality 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 gyro-shaped flanges by forging machines such as forging presses and air hammers.
b: cast flange
Put the high-quality low carbon steel standard waste into the intermediate frequency furnace and heat it to 1200-1500, and pour it into the mold to form the gyro-shaped flange blank.
2) The forging or casting gyro-shaped 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, 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) The flanges that have passed the inspection will be typed on the end face of the flange according to the customer's requirements, and the flange will be anti-rust treatment according to the customer's requirements, 1: black anti-rust paint, 2: anti-rust oil, 3: galvanized, Then put into wooden boxes for shipping.