Garlock PTFE Gaskets
GYLON® Style 3500 PTFE with Silica Filler Gasketing
The GYLON® Style 3500 is a high performance, silica filled PTFE sheet material designed for use with strong acids, solvents, hydrocarbons, and other aggressive media.
Application
- Strong acids (except hydrofluoric acid)
- Solvents
- Hydrocarbons
- Water
- Steam
- Chlorine
- Cryogenics
For oxygen service, specify “Style 3502 for oxygen service.”
Specifications
- Min. Temperature: -268°C (-450°F)
- Max. Temperature: 260°C (500°F)
- Max. Pressure: bar (psi) 83 (1200)
Spec Sheet: Garlock Gylon style 3500 spec sheet (pdf)
GYLON® Style 3504 PTFE with Aluminosilicate Microspheres Gasketing
Application
- Moderate concentrations of acids and some caustics
- Hydrocarbons
- Solvents
- Water
- Refrigerants
- Cryogenics
- Hydrogen peroxide
Specifications
- Min Temperature: -268°C (-450°F)
- Max Temperature: 260°C (500°F)
- Max Pressure: bar (psi) 55 (800)
Spec Sheet: Garlock Gylon Style 3504 Spec Sheet (pdf)
GYLON® Style 3505 NSF 61 Approved PTFE Gasketing
The GYLON® Style 3505 gasket is a high performance, aluminosilicate microsphere filled PTFE gasketing material that is designed for use in oxygen service. GYLON® 3505 is also NSF 61-approved for use in potable water service, and an excellent choice for water lines where electrical isolation properties are necessary.
Application
- Potable drinking water
- Hydrocarbons
- Solvents
- Moderate concentrations of acids and some caustics
- Refrigerants
- Cryogenics
- Hydrogen peroxide
- Oxygen service
Specifications
- Min Temperature: -268°C (-450°F)
- Max Temperature: 260°C (500°F)
- Max Pressure: bar (psi) 55 (1200)
Spec Sheet: Garlock PTFE GYLON Style-3505-Spec-Sheet (pdf)
GYLON® Style 3510 PTFE with Barium Sulfate Filler Gasketing
The GYLON® Style 3510 is a high performance, barium sulfate filled PTFE gasketing material. GYLON® 3510 PTFE gasket is designed for use in strong caustics and toxic chemicals, such as chlorine, ammonia, and phosgene, where initiating and maintaining an extremely tight seal is critical. In addition, the GYLON® 3510 provides exceptional performance in monomer services.
Application
- Strong caustics
- Moderate acids
- Chlorine
- Gases
- Monomers
- Steam
- Hydrocarbons
- Cryogenics and aluminum fluoride
Specifications
- Min Temperature: -268°C (-450°F)
- Max Temperature: 260°C (500°F)
- Max Pressure: bar (psi) 55 (1200)
Spec Sheet: Garlock PTFE Gylon Style 3510 spec sheet (pdf)
GYLON® Style 3530 PTFE with Graphite Filler Gasketing
The GYLON® Style 3530 is a high performance, graphite filled PTFE gasketing material designed to withstand high concentrations of hydrofluoric acid and volatile hazardous air pollutants.
Application
- Monomer service
- Cryogenics
- Highly concentrated hydrofluoric acid
- Volatile hazardous air pollutants (VHAP)
Specifications
- Min. Temperature: -268°C (-450°F)
- Max. Temperature: 260°C (500°F)
- Max. Pressure: bar (psi) 55 (1200)
Spec Sheet: Garlock Gylon Style 3530 (pdf)
GYLON® Style 3540 Microcellular PTFE Gasketing
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 generate lower compressive stresses, such lined flanges and equipment.
Application
- 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 adequate compressive stress is available.
Specifications
- Min Temperature: -268°C (-450°F)
- Max Temperature: 260°C (500°F)
- Max Pressure: bar (psi) 55 (1200)
Spec Sheet: Garlock Gylon Style 3540 (pdf)
GYLON® Style 3545 Microcellular PTFE Gasketing for Low Bolt Load Applications
The GYLON® Style 3545 is a highly compressible microcellular PTFE with a rigid PTFE core for improved handleability. The GYLON® 3545 designed to compress and conform to irregular or damaged surfaces, making it suitable for flanges that generate lower compressive stresses, such and glass-lined flanges and equipment.
Application
- Strong caustics
- Strong acids
- Hydrocarbons
- Chlorine
- Cryogenics
- Glass-lined equipment†
- Low bolt load applications*
* 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 adequate compressive stress is available.
† When sealing uneven flanges, gasket must be four times thicker than maximum gap between flanges.
Specifications
- Min Temperature: -268°C (-450°F)
- Max Temperature: 260°C (500°F)
- Max Pressure: bar (psi) 55 (1200)
Spec Sheet: Garlock Gylon Style 3545 (pdf)
GYLON® 3545 TUFF-RAIL®
Manufactured from 100% pure PTFE and utilizing our proprietary GYLON® process, the 3545 TUFF-RAIL® gasket is specifically designed to help address those difficult installation and sealing requirements of manways.
Features and Benefits
- Manufactured with 100% pure PTFE for universal chemical resistance
- Proprietary GYLON® 3545 and raised sealing ribs offer excellent creep resistance and long term bolt load retention
- Highly compressible for low load sealing on less than ideal flange surfaces
- Tough, reliable and reusable—ideal for heavy vibration, thermal cycling, and over-torqueing
- Engineered to a single size to fit the most common manways simplifying inventory (AAR-1, UTC-1, TRN-1)
- Unlimited shelf life and high crush resistance – issues commonly associated with rubber gaskets
- The TUFF-RAIL® patent pending technology relies on unique materials & advanced design for superior performance
Specifications
- Min Temperature: -268°C (-450°F)
- Max Temperature: 260°C (500°F)
Spec Sheet: Garlock Gylon 3545 Tuff-Rail Gasket (pdf)
GYLON® Style 3565 ENVELON® Gasketing
Tight seal on glass-lined and wavy flanges. High performance, aluminosilicate microsphere filled PTFE
Application
- Hydrocarbons
- Solvents
- Moderate concentrations of acids and caustics
- Cryogenics
- Glass-lined Equipment
- Hydrogen peroxide
- Refrigerants
Specifications
- Min Temperature: -268°C (-450°F)
- Max Temperature: 260°C (500°F)
- Max Pressure: bar (psi) 55 (1200)
Spec Sheet: Garlock GYLON® Style 3565 ENVELON® Gasketing (pdf)
GYLON BIO-ECO® – M1 / M2 collar DIN 11851 PTFE Gasket
Its combination of sealing stress and simultaneous recovery makes GYLON BIO-ECO® the ideal solution for couplings in accordance with DIN 11851 and SMS 1149. All of the disadvantages associated with current elastomeric seals regarding temperature, chemical resistance, and re-usability are eliminated by the modified PTFE material.
Application
- Dairy screw couplings
- Fluid foodstuffs
Specifications
- Min Temperature: -210°C (-346°F)
- Max Temperature: 260°C (500°F)
More info: GYLON BIO-ECO® – M1 / M2 collar DIN 11851 PTFE Gasket
GYLON® BIO-PRO PLUS™
Manufactured from our proprietary GYLON® style 3522 modified PTFE, GYLON® BIO-PRO PLUS™ delivers best in class performance across all critical factors such as compliance, chemical compatibility, sealability, creep and cold flow.
Application
- Min process Temperature: -268°C (-450°F)
- Max process Temperature: 260°C (500°F)
- Max Pressure: bar (psi) 55 (800)
More info: GYLON® BIO-PRO PLUS™
GYLON BIO-ASEPT® FDA DIN 11850 and ISO 1127 PTFE Gasket **
GYLON BIO-ASEPT® seals offer high stability and a specific elasticity. The seals are pre-formed and stress controlled to provide a solid seal when assembled in piping systems. Chemical degradation or brittleness will not occur under normal or even elevated process and sterilization conditions. GYLON BIO-ASEPT® gaskets conform to DIN 11853 (hygienic connections) and DIN 11864 (aseptic connections) and far exceed the performance characteristics of conventional elastomeric seals. FDA DIN 11850 and ISO 1127 PTFE Gasket.
Application
- Hygienic connections
- Aseptic connections
Specifications
- Min Temperature: -210°C (-346°F)
- Max Temperature: 260°C (500°F)
GYLON® Style HP 3561 High Pressure Gasketing
GYLON® Style HP 3561 High Pressure Gasketing
GYLON® Style HP 3561 is high performance, barium sulfate filled PTFE gasketing material that contains a perforated 316L stainless steel insert for improved pressure resistance (can withstand up to 2,500 PSI).
Application
- Caustics
- Chlorine
- Gases
- Water
- Steam
- Hydrocarbons
- Cryogenics
- Aluminum fluoride
Specifications
- Max Temperature: 260°C (500°F)
- Max Pressure: bar (psi)172 (2,500)
Spec Sheet: Garlock Gylon HP 3561 Spec Sheet (pdf)
STRESS SAVER® GYLON® Style 3504 Gasket Seals
100% GYLON® PTFE with aluminosilicate microspheres: GYLON® STRESS SAVER® Style 3504 combines the proven sealing advantages of molded, raised ribs with the performance characteristics of the industry recognized GYLON® 3504 PTFE gasketing material.
Application
Industries
- Chemical Processing
- Electronics, semiconductor
- Food
- Pharmaceutical
- Pulp and Paper
- Potable/Drinking water*
Flange Types
- PVC
- FRP
- PVDF
- CPVC
- Polypropylene
- Cast and ductile iron
Spec Sheet: Garlock Stress Saver 3504 (pdf)
TANDEM SEAL™ with PTFE Envelope **
TANDEM SEAL™ with PTFE Envelope
Dual sealing surface with PTFE envelope
Features and Benefits
- Chemical-resistant and fire-safe
- Passed API-6FB Fire Test
- PTFE envelope withstands aggressive chemicals and corrosive media
- Two sealing elements significantly reduce corrosion and possible erosion of the flange/pipe (NOTE: Pipe schedule must be specified at the time of order)
- Seals to the ID of the pipe bore
- Withstands high pressure