Weldneck Flange (CL-600-20″)

Weldneck flange (WN), class 600, size 20 inches, manufacturing standard: ASME B16.5

The Weldneck Flange (CL-600-20″) is a 20″ diameter flange made for pipes with an inside diameter of 20″. Weldneck flanges (Class 600) are designed to withstand higher pressures than lower class flanges and are typically used in applications requiring high compressive strength.


1. Neck: The weld neck flange has a long neck or throat to connect to the pipe through welding.

2- Pressure: the working class of the flange is equal to 600 psi. In other words, it can withstand nominal pressure (PN) up to 100 bar.

3- Bore: Weldneck Flange (C-600-20″) has a central hole (Bore) to connect to the pipe.

4. Materials: carbon steel, stainless steel and alloy

5- Application: oil and gas, petrochemical, power plant and chemical industries

When choosing a flange, including a weldneck flange (Class 600), factors such as pipe size, material compatibility, temperature and pressure requirements should be considered. To ensure that the flange is suitable for your intended application, consult with experts and engineers in the field or relevant industry standards and guidelines such as ASME B16.5 are necessary.

Technical Specifications:

Dimensions: 20 inches

Class: 600

Dimensions: 20 inches

Disc Surface Type: Flat Face (FF)

Standard: ASME B16.5


Contact our specialists in the sales department for advice, order the weld neck flange (class 600 – size 20 inches) and inquire about its price.

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