Reducing Weld Neck Flange
Reducing weld neck flange is used in place of standard flanges to allow for changes in pipe size. This flange eliminates the need for a standard pipe reducer.The flange consists of one specified diameter and a smaller bore diameter.
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- Flange Manufacturer
- Flange standard
- Welding Neck Flange
- Stainless steel Flange
- Carbon & Alloy steel Flange
- Blind Flange
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- Orifice Flange
- Threaded Flange
- Swivel Ring Flange
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- 1/2" (24)
- 3/4" (24)
- 1" (24)
- 1-1/4" (24)
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- 2" (25)
- 2-1/2" (24)
- 3" (24)
- 4" (20)
- 4" (20)
- 304L (179)
- 316L (179)
Reducing Weld Neck Flange Models
Reducing Weld Neck Flange
Reducing weld neck flanges have the dimensions of a standard pipe flange size except for the bore and hub size and are considered an economical means of making pipe size conversions. Reducing weld neck flanges are an economical way to make transitions between different pipe sizes but is rarely used in piping due to the large pressure loss.
Product Features Of Reducing Weld Neck Flanges
Anti-corrosion, acid and alkali resistance, long service life, reasonable price calculation, smooth surface, acid and alkali resistance, high temperature resistance, beautiful appearance, strong texture performance.
Widely used in water conservancy, electricity, power stations, pipeline accessories, industry, pressure vessels, etc..
Reducing flanges are usually connected by flange nuts and bolts.
Strictly manufactured under relevant standards formulated by the state
Professional integral forging, forging manufacturing, middle plate cutting, middle plate rolling, etc
Purpose Of Reducing Weld Neck Flange
Reducing weld neck flanges are widely used in water conservancy, electricity, power stations, pipeline accessories, industry, pressure vessels, etc.
Reducing weld neck flanges are also called large and small flanges. Except for the pipe diameter, the flange size is the standard flat welding flange size of the larger diameter of the two diameters, but the pipe diameter is smaller than the normal diameter of the flange.
This type of flange is generally not recommended for use. It is only used when the diameter of the equipment, pump nozzle is larger than the pipe to be connected, and the installation size does not allow the installation of a reducer or it is unreasonable to install several reducers. At present, reducing flanges is limited to PN ≤ 2.5MPa, and only the former Ministry of Petroleum has this standard.
Processing Methods
High-precision CNC lathe turning, ordinary lathe fine turning, argon arc welding, etc.
Nominal pressure of reducing flanges sch5s, sch10s, sch20s, sch30s, sch40s, etc.
Manufacturing Standards
National standards, American standards, Russian standards, Japanese standards, etc.
Application Of Reducing Weld Neck Flange
Reducing weld neck flanges are also called sealing and fastening connectors. Reducing weld neck flanges are disc-shaped parts, which are most common in pipeline engineering, and flanges are also used in pairs.
Flanges are installed in various ways in the pipelines that need to be connected.Threaded flanges are suitable for low-pressure pipelines, while welding flanges are recommended for pipelines with pressure exceeding 4kg.
Place sealing points between the two flanges, and then use bolts to tighten them.Flanges with different pressures of course have different thicknesses, and the bolts used are also different. The equipment parts are also fabricated into matching flange shapes, commonly referred to as flange connections. It is widely used in large containers in the fields of aerospace, petroleum, and chemical industry.
Advantages Of Reducing Weld Neck Flange
Reducing weld neck flanges have multiple advantages: standard reducing weld neck flanges not only save space and reduce weight, but more importantly, it ensures that no leakage occurs at the joint. The reason for the reduced size of the compact flange is that the diameter of the seal is reduced, which will reduce the cross-section of the sealing surface.
Secondly, the flange gasket has been replaced by a sealing ring to ensure the matching of the sealing face to the sealing face. In this way, only a small amount of pressure is required to compress the cover tightly. With the reduction in the required pressure, the required bolt size and number can be reduced accordingly.
Processing Process Of Reducing Weld Neck Flange
Since the nominal diameter of the container cylinder of the reducing weld neck flange and the specific size indicated by the nominal diameter of the pipe are different, the sizes of the container flange and the pipe flange of the same nominal diameter are also different, and the two cannot be used interchangeably.
Usually, reducing weld neck flanges are always divided into several arc segments for processing. First, the blank is forged into a square billet and then cold-formed into an arc. After annealing and stress-relieving heat treatment, it is assembled into a complete circle and processed on a vertical lathe to the designed shape and size. Finally, it is transported to the construction site, and several arcs are combined. Welded into a complete reducing weld neck flange, and then assembled with the pressure vessel.
Reducing weld neck flanges have different production standards in use and production. According to the corresponding standards, the actual use value and role of reducing weld neck flanges can be guaranteed.
Elite Piping Manufacture is a very professional company and we will definitely have products that will satisfy you.You can be sure that the products you get are backing with our commitment to quality and customer satisfaction. We provide competitive prices, fast transportation time and excellent customer service to ensure that you get the best experience.
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Company:
bazhou elite s
d manufacture co.,ltd.
Factory Address：
Office # 805, Building No. 6 Poly Metropolitan, Yongshum Town, Tongzhou District, Beijing, China.
Contact Person：
Thomas
Contact Numbers：
+86 88888888888
Email:
sales@ematal.com
