Garlock Gylon 3500 Flat Gasket

The Garlock Gylon 3500 Flat Gasket, a paragon of high-performance non-metallic insulation gaskets under the esteemed Garlock brand, is ingeniously engineered to meet the exacting demands of arduous industrial environments. Utilizing a composite material of PTFE (polytetrafluoroethylene) and silica, the Garlock Gylon 3500 Flat Gasket offers exceptional chemical resistance, thermal stability, and mechanical strength, complying with the ASME B16.20 standard. Tailored for high-pressure systems up to a Class 300LB rating, it functions optimally within a temperature range from - 268°C to + 260°C, maintaining unwavering performance even under the most extreme conditions. Featuring an RF flange face design and a thickness of 3.2mm, this gasket provides comprehensive sealing and insulation protection, effectively preventing galvanic corrosion and extending equipment lifespan. Whether deployed in chemical, petrochemical, or other highly corrosive media applications, the Garlock Gylon 3500 Flat Gasket stands out as an exemplary choice for guaranteeing system safety and facilitating efficient operation.​

The Garlock Gylon 3500 Flat Gasket, featuring a distinctive PTFE-silica composite formulation, manifests preeminent resistance to chemicals, solvents, and hydrocarbons. It sustains exceptional sealing performance and unwavering long-term stability, even in the most severe chemical environments.

Key Performance Characteristics  

1. Chemical Resistance: Suitability for Strong Acid and Alkali Environments with pH 0 - 14 14 The Garlock Gylon 3500 Flat Gasket showcases extraordinary resilience to extremely acidic and alkaline media.  PTFE is highly chemically inert, reacting with almost no acids or bases. Adding silica further enhances the material’s mechanical strength and corrosion resistance. Experimental data show that the gasket maintains stable physical and chemical properties across the pH range of 0-14, including strong acids like sulfuric acid and hydrochloric acid and strong bases like sodium hydroxide, ensuring long-term reliable sealing.  

2. Solvent Resistance: Exceptional Tolerance to Most Organic Solvents 

The Garlock Gylon 3500 Flat Gasket exhibits remarkable resistance to an extensive array of organic solvents, including benzene, toluene, acetone, methanol, and ethanol. Owing to the non-polar characteristic of PTFE, it is rendered nearly impermeable to organic solvents, enabling it to uphold its structural integrity even under elevated temperature and pressure conditions. According to ASTM D543 testing, after 168 hours of immersion in these solvents, the gasket’s weight change rate is less than 1%, with no significant decline in mechanical performance. This verifies its broad-ranging applicability within the chemical and pharmaceutical industries. 

3. Hydrocarbon Resistance: Long-Term Stability in Petroleum, Natural Gas, and Other Hydrocarbon Media  

Within the milieu of petroleum, natural gas, and other hydrocarbon media, the Garlock Gylon 3500 Flat Gasket manifests remarkable long - term stability. PTFE has extremely low permeability to hydrocarbons and does not swell or degrade due to media exposure. Experimental data indicate that after 1000 hours of immersion in crude oil at 100°C, the gasket’s compression recovery rate remains above 90%. This ensures long-term, trustworthy sealing within oil and gas transportation and processing system 

The Garlock Gylon 3500 Flat Gasket, with its superior chemical resistance, solvent resistance, and hydrocarbon resistance, has become an indispensable sealing solution in industries such as chemical, petrochemical, pharmaceutical, and oil and gas. Its outstanding performance and unwavering long-term stability not only effectively forestall media leakage but also substantially curtail maintenance costs and elongate the equipment's service life.  Whether facing strong acids and bases, organic solvents, or hydrocarbons, the Garlock Gylon 3500 Flat Gasket provides reliable sealing assurance, meeting the most demanding industrial requirements.