Product Introduction

Size

NPS 1/2"-24" DN15-DN1200

Pressure

PN2.5~PN40; Class150~Class1500

Material

Carbon Steel A105 Q235B, etc.

Plate flange is a type of flange used to connect pipelines, which has a flat welding surface and is connected to the welding joint of the pipeline by welding. This type of flange is widely used in various industrial fields, including chemical, petroleum, natural gas, shipbuilding, power, etc.

1. Welding connection:

The design of plate type flat welding flange is mainly for welding connection. It is usually connected to the weld seam of the pipeline, and the flange is permanently connected to the pipeline through a welding process (usually butt welding).

2. Flat welding surface:

Compared with other types of flanges, the welding surface of plate type flat welding flanges is flat, rather than raised or recessed. This design makes the welding process simpler and easier to achieve good sealing performance.

3. Suitable for low-voltage systems:

As plate type flat welding flanges are generally used in low-voltage systems, they are usually suitable for some less stringent requirements. For high-pressure or high-temperature systems, other types of flanges are usually used, such as flange threaded connections or flange butt welding.

4. Standard specifications:

The manufacturing and use of plate type flat welding flanges usually need to follow some standard specifications, such as ASME B16.5 (American Society of Mechanical Engineers standard), to ensure that the quality and performance of the product meet industry standards.

Material:

Plate type flat welding flanges can be made of various materials, including carbon steel, stainless steel, alloy steel, etc. The specific selection depends on the requirements of the pipeline system and environmental conditions.

Usage:

Plate type flat welding flanges are suitable for many different application scenarios, such as the installation, maintenance, and repair work of pipeline systems. Its simple design makes the installation process relatively fast and the cost is low.

Yellow paint coating

Spraying yellow paint is a surface treatment method commonly used to improve the corrosion resistance of flanges and can be used for identification or to meet specific project requirements. Yellow is usually a prominent color that helps distinguish different types of flanges or piping systems.

Purpose:

One of the main purposes of applying yellow paint may be to provide additional corrosion protection, especially when exposed to harsh environmental conditions.

Identification:

Coating with yellow paint can also be used to identify specific uses, pressure ratings, or other characteristics of flanges. This helps to identify and manage different components in pipeline systems.

Decoration:

Yellow paint coatings may also be used for aesthetic or decorative purposes, especially in some industrial or construction projects, where appearance may also be a consideration.

In practical applications, the selection of coatings may depend on specific project requirements, engineering specifications, and environmental requirements. The best practice is to communicate with manufacturers or suppliers during the procurement or design phase to ensure that the selected coating meets the technical requirements and standards of specific applications.