Flange Products

  The flanges we manner and produce are mainly used in petroleum and creation machinery and device industries. the substances utilized in processing are flexible and can be solid consistent with the shape and size provided through customers.

 Our benefit inside the production of flanges is the seamless rolling process, that can shop charges and may be processed in batches.


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Product Details

The internal gear ring produced by our Baohua Company is mainly used in the equipment accessories of petroleum industry and construction machinery. Forging the size of the internal gear ring according to the requirements of customers for using round steel in product materials. Batch purchase can open molds for specialized supply and finishing production.

Flanges can be made of a variety of materials including but not limited to 4140, 4130, 35CrMo, 20CrMnMO, and can be forged and machined with a diameter of 200mm to 3000mm. All our forgings can go through hot die forging, rough machining, heat treatment and other processes, increasing the forging ratio and performance stability. Flange forgings can be finished to meet the final assembly conditions.


Frange Products

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Flange dimensions and common precautions

In addition to the functional design of the flange, its size is the most likely factor to affect the flange selection when designing, maintaining and updating the piping system. However, the interface between the flange and the pipe and the gasket used must be considered to ensure the correct size. In addition, some common precautions are as follows:

Outer diameter: the outer diameter refers to the distance between two opposite sides of the flange surface.

Thickness: The thickness is measured from the outside of the rim.

Bolt diameter: it refers to the distance between relative bolt holes measured from center to center.

Pipe size: the pipe size refers to the size corresponding to the flange.

Nominal inner diameter: The nominal inner diameter is the inner diameter of the flange joint.


Detailed product size and price agreement can be communicated online, and online or email consultation is welcome.


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