Duplex Steel S31803 Blind Flanges

Zhejiang Dafugui Duplex Steel S31803 Blind Flanges Introduction

When using flanged blind plates in oil medium systems, they should not be galvanized. However, when used in other media systems, they should be hot-galvanized with a small zinc dipping layer of 610g/m2, and the quality inspection of hot-dipping zinc shall be according to CB*/Z343.

Pressure testing of flange blind plates has become a crucial step in the rapid development of long-distance pipeline construction. Typically, each section of pipeline requires 4-5 ball scans before and after pressure testing. After pressure testing, cleaning the water in the pipeline is difficult and requires numerous cleaning attempts. The construction method of repeatedly welding the head at the ball receiving place results in increased labor intensity for workers, high consumable materials, large equipment, and high costs.

To address the aforementioned issues, a new construction method using a simple and quick opening flange blind plate has been proposed. This construction method involves introducing the structure, working steps, and strength checks of the quick opening blind plate.

Zhejiang Dafugui Duplex Steel S31803 Blind Flanges Parameter (Specification)

Zhejiang Dafugui Duplex Steel S31803 Blind Flanges Feature And Application

Duplex Steel S31803 Blind Flanges: high-quality and affordable products offered by Zhejiang Dafugui. Suitable for a variety of applications including oil, gas, and water pipelines.

Zhejiang Dafugui Duplex Steel S31803 Blind Flanges Details

Zhejiang Dafugui Duplex Steel S31803 Blind Flanges PROCESS flow