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Xiamen 40inch Gasket Insulation Sets
QS Gasket: Xiamen 40inch Gasket Insulation Sets
Name: Xiamen 40inch Gasket Insulation Sets
Material: UNIFLUOR-7551
Size: 40 Inch
Pressure: 150#
Thickness: 1/8"
Type: F
Sleeve: G11
Washers: G11+ ZPS
Standard: For ASME B16.47B-WN-RF
Price: 1250 - 1450 USD
MOQ: 1 PCS
Delivery Date: 7 - 35 Days
Customization: Yes
Material: UNIFLUOR-7551
Size: 40 Inch
Pressure: 150#
Thickness: 1/8"
Type: F
Sleeve: G11
Washers: G11+ ZPS
Standard: For ASME B16.47B-WN-RF
Price: 1250 - 1450 USD
MOQ: 1 PCS
Delivery Date: 7 - 35 Days
Customization: Yes
Quantity
Designed specifically for large-bore flange insulation applications, the 40inch Gasket Insulation Sets strictly comply with ASME B16.47B WN-RF standards and are rated for Class 150# pressure. The core sealing layer is made of UNIFLUOR-7551 high-performance fluoroplastic, which offers excellent chemical resistance and extremely low creep relaxation. Combined with G11 epoxy fiberglass sleeves and G11+ZPS washers, this set forms a complete electrochemical insulation barrier that effectively blocks stray current in pipelines, protecting valves, heat exchangers, and flange connection faces.
The 40inch Gasket Insulation Sets feature a 1/8-inch thickness and an F-type structure for easy installation, making them suitable for harsh service conditions in oil & gas, chemical, marine engineering, and power plant applications. We support orders starting from 1 piece, with delivery in 7–35 days, and offer non-standard customization based on flange dimensions, pressure ratings, or special media requirements. Priced between 1,250–1,450 USD per set, these 40inch Gasket Insulation Sets deliver both high performance and cost-effectiveness, making them a trusted insulation solution for project sites in North America and the Middle East.
Comparative Analysis: UNIFLUOR-7551 vs. GYLON 3500
1. Material Composition & Manufacturing Process
Both materials are modified PTFE gasket compounds with silica additives, appearing yellowish-brown in color. The key difference lies in the manufacturing process:
- UNIFLUOR-7551: Utilizes biaxial orientation technology, where the PTFE molecules are stretched in two directions through a special process, significantly reducing the creep relaxation tendency common in traditional PTFE.
- GYLON 3500: Employs a molding/calendering process, where PTFE emulsion and silica are mixed at the molecular level via liquid stirring, followed by repeated calendering and high-temperature sintering to achieve an isotropic structure.
1. Material Composition & Manufacturing Process
Both materials are modified PTFE gasket compounds with silica additives, appearing yellowish-brown in color. The key difference lies in the manufacturing process:
- UNIFLUOR-7551: Utilizes biaxial orientation technology, where the PTFE molecules are stretched in two directions through a special process, significantly reducing the creep relaxation tendency common in traditional PTFE.
- GYLON 3500: Employs a molding/calendering process, where PTFE emulsion and silica are mixed at the molecular level via liquid stirring, followed by repeated calendering and high-temperature sintering to achieve an isotropic structure.
2. Performance Parameter Comparison
| Performance Indicator | UNIFLUOR-7551 | GYLON 3500 |
| Temperature Range | -200°C ~ +260°C | -268°C ~ +260°C |
| Maximum Pressure | 80 bar | 83 bar (1200 PSI) |
| Cold Flow Resistance | Excellent (biaxial orientation) | Excellent (industry benchmark) |
| Cryogenic Applicability | Suitable for LNG (-162°C) | Extendable to liquid hydrogen (-253°C) |
Both materials hold FDA food-grade certification and are not resistant to hydrofluoric acid (HF) due to their silica content. UNIFLUOR-7551 additionally holds BAM (oxygen/ethylene oxide) and Germanischer Lloyd classification society approvals, giving it advantages in explosive-media and marine applications. For project teams sourcing 40inch Gasket Insulation Sets, these certification differences serve as important reference points during selection.
3. Cost & Comprehensive Recommendations
As a patented product from Garlock, GYLON 3500 carries a significant brand premium, generally making it more expensive than UNIFLUOR-7551. Under most conventional service conditions (steam, hydrocarbons, strong acids, LNG), the performance gap between the two is minimal, making UNIFLUOR-7551 the more cost-effective choice. When evaluating the overall cost of 40inch Gasket Insulation Sets, UNIFLUOR-7551 helps you significantly reduce procurement budgets while meeting technical requirements.
As a patented product from Garlock, GYLON 3500 carries a significant brand premium, generally making it more expensive than UNIFLUOR-7551. Under most conventional service conditions (steam, hydrocarbons, strong acids, LNG), the performance gap between the two is minimal, making UNIFLUOR-7551 the more cost-effective choice. When evaluating the overall cost of 40inch Gasket Insulation Sets, UNIFLUOR-7551 helps you significantly reduce procurement budgets while meeting technical requirements.
Selection Suggestions: For routine petrochemical, chemical, and LNG projects, UNIFLUOR-7551 is recommended to balance cost and performance, especially when paired with 40inch Gasket Insulation Sets in large-bore flange applications. For scenarios involving liquid hydrogen (-253°C) or where the Garlock brand is mandatory, choose GYLON 3500. For oxygen or ethylene oxide service, prioritize UNIFLUOR-7551 with its BAM certification. Regardless of which option you choose, our 40inch Gasket Insulation Sets can be custom-tailored to match your flange specifications and operating conditions perfectly.
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