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USA Gylon 3500 Insulation Gasket
QS Gasket: USA Gylon 3500 Insulation Gasket
Name: USA Gylon 3500 Gasket
Standard: ASME B16.5
Material: Gylon 3500
Temperature: -268℃ to 260℃
Size: 16 Inch
Pressure: 150LB
Complete Set: with G10 Sleeve and Washers and ZPS
Compound: with High-performance modified polytetrafluoroethylene
Standard: ASME B16.5
Material: Gylon 3500
Temperature: -268℃ to 260℃
Size: 16 Inch
Pressure: 150LB
Complete Set: with G10 Sleeve and Washers and ZPS
Compound: with High-performance modified polytetrafluoroethylene
Quantity
USA Gylon 3500 Insulation Gasket is manufactured to ASME B16.5, 16-inch 150 LB, and guarantees zero leakage from –268 °C to +260 °C. The high-performance modified-PTFE composite Gylon 3500 is supplied complete with G10 insulating sleeves & washers and ZPS, resisting aggressive chemicals and creep while instantly breaking galvanic corrosion loops. It gives marine, chemical and LNG pipelines life-long reliable electrical isolation and sealing.
How much can you save in the long run?
Over its lifetime USA Gylon 3500 Insulation Gasket cuts total cost-of-ownership dramatically compared with ordinary insulating gaskets. Industry cases and performance data show the savings in five clear areas.
Over its lifetime USA Gylon 3500 Insulation Gasket cuts total cost-of-ownership dramatically compared with ordinary insulating gaskets. Industry cases and performance data show the savings in five clear areas.
I. Cost-saving matrix
| Dimension | Ordinary gasket | USA Gylon 3500 Insulation Gasket | Saving |
| Service life | Replace every 1–2 yr | 5–7 yr + | Fewer change-outs, less labour & downtime |
| Leak risk | High | Extremely low (anti-creep, anti-cold-flow) | No product loss, fines or incident cost |
| Maintenance | 1–2× per yr | Inspect every 3–5 yr | Lower labour & inspection cost |
| Energy loss | Higher heat/cold loss | Superior thermal insulation | Lower utility bill, especially in LNG/low-T systems |
| Inventory | Many sizes & materials | One versatile solution | Smaller, simpler stock; no mix-ups |
II. Field evidence
Case 1 – Middle-East petrochemicals, 2023
Plain PTFE insulating gaskets leaked hydrocarbons, USD 120 k lost product every year.
After fitting USA Gylon 3500 Insulation Gasket: three years leak-free, USD 360 k saved, zero unplanned shutdowns.
Case 1 – Middle-East petrochemicals, 2023
Plain PTFE insulating gaskets leaked hydrocarbons, USD 120 k lost product every year.
After fitting USA Gylon 3500 Insulation Gasket: three years leak-free, USD 360 k saved, zero unplanned shutdowns.
Case 2 – North-America LNG terminal, 2022
–160 °C flanges; previous gaskets cold-flowed and were replaced yearly.
With USA Gylon 3500 Insulation Gasket: no replacement for five years, USD 80 k maintenance saving per year and no supply interruption.
–160 °C flanges; previous gaskets cold-flowed and were replaced yearly.
With USA Gylon 3500 Insulation Gasket: no replacement for five years, USD 80 k maintenance saving per year and no supply interruption.
Case 3 – East-China chemical plant, 2024
Galvanic corrosion on ordinary gasket perforated the flange; repair CNY 200 k.
After upgrading to USA Gylon 3500 Insulation Gasket + G10 kit: no galvanic attack, projected ten-year saving > CNY 1 M.
Galvanic corrosion on ordinary gasket perforated the flange; repair CNY 200 k.
After upgrading to USA Gylon 3500 Insulation Gasket + G10 kit: no galvanic attack, projected ten-year saving > CNY 1 M.
III. 7-year cost comparison (16″ 150 LB flange)
| Item | Ordinary gasket (3-year cycle) | USA Gylon 3500 Insulation Gasket (7-year cycle) |
| Material | ~CNY 1 200 / set | ~CNY 3 500 / set |
| Change-outs | 3 | 1 |
| Labour + downtime | ~CNY 8 000 each | ~CNY 8 000 each |
| Total (7 yr) | CNY 27 600 | CNY 11 500 |
| Saving | — | ≈ 58 % |
Note: leak losses, energy and safety events not included; with them saving can exceed 70 %.
IV. Conclusion
Higher initial price is recovered in 3–5 years; over ten years USA Gylon 3500 Insulation Gasket lowers total cost by 50–70 %. It is the best choice for:
- Extreme temperatures (LNG, LOX, LIN)
- Aggressive chemicals (acids, alkalis, solvents)
- Critical sealing (subsea lines, nuclear plants)
Higher initial price is recovered in 3–5 years; over ten years USA Gylon 3500 Insulation Gasket lowers total cost by 50–70 %. It is the best choice for:
- Extreme temperatures (LNG, LOX, LIN)
- Aggressive chemicals (acids, alkalis, solvents)
- Critical sealing (subsea lines, nuclear plants)
Send your operating conditions (fluid, temperature, pressure, flange material) to Xiamen Qishine Industry Co., Ltd. and we will prepare a detailed cost-benefit/ROI report to support your project or purchasing decision.
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