JIS B2311 Carbon Steel Butt Weld Stub End Lap Joint Flanging

Product Introduction

JIS B2311 Stub end is a pipe connection accessory that meets the Japanese Industrial Standard (JIS) and is typically used to connect carbon steel and stainless steel pipes. It consists of two parts: one is the "mother" (or main) end that is the same as the outer diameter of the pipeline, and the other is the "child" (or slave) end that is different from the outer diameter of the pipeline, usually shorter than the mother end.

The manufacturing material of JIS B2311 Stub end is usually carbon steel or stainless steel, such as SUS304, SUS316, etc. Its surface can be treated with methods such as galvanizing, painting, sandblasting, etc. to improve its corrosion resistance and aesthetics.
The installation method of JIS B2311 Stub end can be welding, threaded connection, flange connection, etc. Among them, welding connection is the most commonly used method, usually using butt welding to connect the Stub end with the pipeline, thus forming a complete pipeline system.

It should be noted that the material and specifications of JIS B2311 Stub end need to be selected based on the actual usage environment and pipeline requirements to ensure the safety and reliability of the pipeline system. In addition, sufficient inspection and testing are required before installation to ensure the quality and stability of the connection.

The dimensions, pressure rating, and scope of application of JIS B2311 Stub end are as follows:
Dimensions: From DN15 (1/2 inch) to DN600 (24 inch).
Pressure level: from 5K to 40K.
Scope of application: Mainly used in various pipeline systems in industries such as chemical, petroleum, natural gas, construction, machinery, medicine, metallurgy, food, and shipbuilding.

Comparison

Compared with other pipeline connection accessories, the main similarities and differences of JIS B2311 Stub end are as follows:
Similarities:
Like other pipe connection accessories, JIS B2311 Stub end is used to connect pipes of different sizes or materials.
JIS B2311 Stub end, like other pipeline connection accessories, has different connection methods such as welding, threading, and flanges.
Difference:
JIS B2311 Stub end adopts Japanese industrial standards, and there may be differences in size, specifications, and materials compared to other standards such as ASME, EN, DIN, etc.
The size and pressure rating range of JIS B2311 Stub end is relatively small, for example, its maximum size is DN600 and its maximum pressure rating is 40K.
The scope of application of JIS B2311 Stub end is also relatively limited, mainly applicable to various pipeline systems in industries such as chemical, petroleum, natural gas, construction, machinery, pharmaceuticals, metallurgy, food, and shipbuilding.

In summary, JIS B2311 Stub end is a pipeline connection fitting that meets Japanese industrial standards, with certain limitations on its size, pressure rating, and applicability. Compared with other pipeline connection accessories, they have some similarities and differences that need to be selected based on the actual usage environment and requirements.