Name: CGI Spiral Wound Gasket - China CGI Spiral Wound Gasket Manufacturers Suppliers Factory - Delan International
Brand: Delan
SKU: 274164618

Tianjin Delan International Co., Ltd is one of the most reliable manufacturers and suppliers of cgi spiral wound gasket in China. If you're going to wholesale customized cgi spiral wound gasket, welcome to get price list and quotation from our factory.

The inner and outer reinforced spiral wound gasket is usually made by spirally winding high-quality stainless steel winding strips such as SUS304 and SUS316 (in "V" or "W" shape) with soft materials like graphite, asbestos, polytetrafluoroethylene (PTFE), and non-asbestos in an alternating and overlapping manner. The metal strips are fixed by spot welding at the starting and ending ends. Basic type metal wound gaskets, without inner and outer rings, are generally used in medium and low-pressure flanges with tongue-and-groove faces, flat faces, or male and female faces. Technical standards:Foreign manufacturing standards for metal wound gaskets include: ASME B 16.20, ASME B 16.5, ASME B 16.47 A (B), BS EN1092, JIS, NF, etc.

Classification of Spiral Wound Gaskets

Style R ( A )

Style RTR ( B )

Style CG ( C)

Style cGI (D)

Performance Characteristics and Application Scenarios

Performance characteristics:
CGI gasket flexitallic have good compressibility and resilience, featuring multi-channel sealing and a certain degree of self-tightening function. They are not very sensitive to surface defects on flange pressing faces, do not adhere to flange sealing surfaces, and can partially eliminate the impact of pressure, temperature changes, and mechanical vibrations. They can maintain excellent sealing performance under various harsh cyclic conditions such as high temperature, low temperature, high vacuum, and impact vibration.

Application equipment:
It is used in static sealing parts at flange connections of pipes, valves, pressure vessels, condensers, heat exchangers, towers, manholes, handholes, etc., in industries such as petroleum, chemical industry, metallurgy, electric power, shipbuilding, gas, nuclear energy, aerospace, textiles, medicine, and machinery.

production process

The production of spiral wound gaskets involves multiple precision processes.

First, material preparation: Select stainless steel strips such as SUS304 and 316 (cut into "V" or "W" shapes) and soft materials like graphite and PTFE, then precisely cut them according to specifications to ensure dimensional matching.

Next is the core winding process: Metal strips and soft materials are stacked alternately and spirally wound by specialized equipment. The machine performs real-time tension control to ensure tight adhesion between layers and regular patterns, forming basic gasket blanks.

After winding, the starting and ending ends of the blanks are fixed by spot welding to prevent loosening or deformation under pressure. For reinforced gaskets, inner and outer rings need to be assembled simultaneously to enhance structural stability.

Finally, strict quality inspection is conducted: Dimensional accuracy, weld strength, and sealing performance (such as pressure testing) are tested. Qualified products are sorted, packaged, and stored in the warehouse. The entire process ensures compliance with industry standards.