Specification of Garlock WHITE GYLON ® 3540 Gasket
Garlock WHITE GYLON® 3540
Microcellular PTFE Gasketing for Glass-lined Equipment. The GYLON® Style 3540 gasket is a highly compressible, microcelluar PTFE gasketing material designed to compress and conform to irregular or damaged surfaces, making it suitable for flanges that produce lower compressive stresses, such as lined flanges and equipment.
FEATURES and BENEFITS Tight seal Highly compressible PTFE seals under low bolt load Compressible material conforms to surface irregularities, especially on warped, pitted, or scratched flanges Reduced cold flow and creep Pure PTFE withstands a wide range of chemicals PTFE Soft can be cut from larger sheets, reducing inventory costs and expensive downtime Will not support flame Will not support bacterial growth
SPECIFICATIONS Available in sheet or cut gasket form Color: White Microcellular PTFE Meets FDA specifications
Min. Temperature: -450 ° F / -268 ° C Max.
Temperature: 500 ° F / 260 ° C Max
. Pressure: 1200 PSI / 55 bar
Maximum PxT 1/16: 350,000 ° F x PSIG / 12,000 bar x ° C
Maximum PxT 1/8: 250,000 ° F x PSIG / 8,600 bar x ° C
APPLICATIONS Suitable for many non-metallic flanges *
Strong caustics Strong acids Hydrocarbons Chlorine Cryogenics Glass-lined equipment
* For flat face flanges, a minimum compressive stress of 1,500 psi is recommended on the contacted gasket area for 150 psig liquid service. Consult with the flange manufacturer to confirm that compressive stress is available.gasket
Rubber Gaskets and Gasket Materials
