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RF Gylon 3500 Insulation Gasket
QS Gasket: RF Gylon 3500 Insulation Gasket
Name: RF Gylon 3500 Insulation Gasket
Standard: ASME B16.21
Material: Gylon3500
Size: 2 Inch
Pressure: 150LB
Type: F
Complete Set: with G11 Sleeve and Washers and ZPS
Price: 26 - 50 USD
MOQ: 2 PCS
Delivery Date: 7 - 35 Days
Customization: Yes
Standard: ASME B16.21
Material: Gylon3500
Size: 2 Inch
Pressure: 150LB
Type: F
Complete Set: with G11 Sleeve and Washers and ZPS
Price: 26 - 50 USD
MOQ: 2 PCS
Delivery Date: 7 - 35 Days
Customization: Yes
Quantity
This ASME B16.21 compliant RF Gylon 3500 Insulation Gasket is specifically designed for demanding sealing and electrical isolation requirements of 2-inch 150LB flanges. Manufactured from creep-resistant, highly corrosion-resistant (except to hydrofluoric acid) Gylon 3500 modified PTFE sheet, it offers a service temperature range of -210°C to +260°C. The kit integrates G11 insulating sleeves and washers, along with a unique ZPS anti-short-circuit sealing structure, effectively blocking electrochemical corrosion. It provides a reliable solution for ensuring the safe operation of piping systems under highly corrosive, cryogenic, or high-temperature conditions. As a high-performance RF Gylon 3500 Insulation Gasket, it is easy to customize, with a minimum order quantity of just 2 pieces, a lead time of 7 to 35 days, and a unit price between 26 and 50 USD, balancing high performance with small-batch purchasing flexibility.
Gylon 3500 insulation gasket is a high-performance modified PTFE sealing product that plays a key role in demanding conditions within the chemical, oil & gas, and pharmaceutical industries. Among them, the RF Gylon 3500 Insulation Gasket is widely used in flange connection scenarios requiring prevention of electrochemical corrosion due to its excellent electrical isolation properties.
Key Applications
The application scenarios for the RF Gylon 3500 Insulation Gasket are clearly defined, primarily in industrial sealing conditions involving strong corrosion, high purity, and extreme temperatures.
The application scenarios for the RF Gylon 3500 Insulation Gasket are clearly defined, primarily in industrial sealing conditions involving strong corrosion, high purity, and extreme temperatures.
- Strong Acid & Chlorine Service: It can withstand most strong acids (such as sulfuric and hydrochloric acid) except hydrofluoric acid, and is also suitable for media such as water, steam, solvents, hydrocarbons, and chlorine.
- Extreme Temperature Service: With a service temperature range covering -268°C to +260°C, it is an ideal choice for cryogenic applications (e.g., LNG plants, liquid nitrogen equipment) and high-temperature steam services.
- Insulation & Cathodic Protection: As an insulation gasket kit (including G11 sleeves, washers, and ZPS sealing components), the RF Gylon 3500 Insulation Gasket is specifically used at pipe flange connections requiring electrical isolation, blocking galvanic corrosion between dissimilar metals. It is widely used in oil & gas transmission, power substations, and superconducting equipment.
- Hygienic & Clean Industry: As it contains no asbestos, heavy metals, or other harmful substances, Gylon 3500 complies with FDA standards and can be safely used in food & beverage and pharmaceutical production lines, meeting strict sanitary requirements.
Horizontal Comparison with Other Gasket Materials
To more intuitively understand the advantages of the RF Gylon 3500 Insulation Gasket, a comparison with several common gasket materials is provided below:
To more intuitively understand the advantages of the RF Gylon 3500 Insulation Gasket, a comparison with several common gasket materials is provided below:
| Comparison Item | RF Gylon 3500 Insulation Gasket | Traditional Plain PTFE | Rubber Gasket | Asbestos Gasket |
| Temperature Resistance | -268°C ~ +260°C | Wide range, but prone to softening at high temperatures | Typically -40°C ~ +150°C | High temperature resistance, but prone to embrittlement |
| Chemical Resistance | Excellent, resists strong acids (except HF), alkalis, solvents, hydrocarbons | Excellent, but suffers from creep issues | Poor chemical resistance, prone to swelling and aging | Fair, but poses health risks |
| Creep Relaxation | Very Low, patented process solves cold flow problem, high torque retention | High, deforms and thins slowly under sustained load, leading to leaks | Moderate | Low |
| Sealing Reliability | High, especially suitable for applications with frequent temperature/pressure fluctuations | Fair, requires frequent bolt retorquing | Fair, prone to failure after long-term use | Fair |
| Insulation Performance | Excellent, high dielectric breakdown voltage, ideal insulating seal | Excellent | Some rubbers insulate, but heavily restricted by service conditions | Conductive or non-insulating |
| Safety | FDA compliant, asbestos-free, heavy metal-free | Food-grade available, safe | Possible additive leaching | Carcinogenic risk to humans, banned in many countries |
The RF Gylon 3500 Insulation Gasket combines the chemical inertness of PTFE, a temperature range far exceeding rubber, and mechanical stability overcoming traditional PTFE's cold flow defect, making it a comprehensive and high-performance upgrade solution.
FAQ
Q1: What is the difference between Gylon 3500 and Gylon 3504?
A: Both are modified PTFE, but formulations and target applications differ. 3500 (light tan) is silica-filled, specifically designed for strong acids. 3504 (blue) targets medium-concentration acids and some alkalis, offering higher compressibility suitable for low-load flanges. Simply put, choose 3500 for strong acid conditions, and 3504 for medium-strength acids/alkalis or when flexible sealing needs are higher.
Q1: What is the difference between Gylon 3500 and Gylon 3504?
A: Both are modified PTFE, but formulations and target applications differ. 3500 (light tan) is silica-filled, specifically designed for strong acids. 3504 (blue) targets medium-concentration acids and some alkalis, offering higher compressibility suitable for low-load flanges. Simply put, choose 3500 for strong acid conditions, and 3504 for medium-strength acids/alkalis or when flexible sealing needs are higher.
Q2: Why can the RF Gylon 3500 Insulation Gasket function as an"insulation gasket"?
A: PTFE material inherently possesses very high electrical resistivity and dielectric strength, making it a naturally excellent insulator. GYLON series materials have undergone specific testing for dielectric breakdown voltage, confirming their high resistance to electrical breakdown among non-carbon-filled sheets. Together with safe insulating sleeves and washers, it forms a complete flange electrical isolation solution.
A: PTFE material inherently possesses very high electrical resistivity and dielectric strength, making it a naturally excellent insulator. GYLON series materials have undergone specific testing for dielectric breakdown voltage, confirming their high resistance to electrical breakdown among non-carbon-filled sheets. Together with safe insulating sleeves and washers, it forms a complete flange electrical isolation solution.
Q3: Is Gylon 3500 suitable for all media?
A: No. It has specific forbidden media, primarily hydrofluoric acid (HF), molten alkali metals, and free fluorine atoms, which can corrode or degrade the PTFE molecular structure. Additionally, for pure oxygen service, a specially certified type, GYLON 3502, must be used to ensure safety.
A: No. It has specific forbidden media, primarily hydrofluoric acid (HF), molten alkali metals, and free fluorine atoms, which can corrode or degrade the PTFE molecular structure. Additionally, for pure oxygen service, a specially certified type, GYLON 3502, must be used to ensure safety.
Q4: Is the RF Gylon 3500 Insulation Gasket difficult to install and seal?
A: No, quite the opposite. The RF Gylon 3500 Insulation Gasket is easier to seal than traditional PTFE. It solves the cold flow issue, meaning the bolt torque applied during installation is maintained over the long term, resisting relaxation. This greatly reduces maintenance work caused by torque decay requiring frequent retorquing. For flanges with poor surface conditions, selecting the version with EPIX surface protrusions provides even better sealing performance.
A: No, quite the opposite. The RF Gylon 3500 Insulation Gasket is easier to seal than traditional PTFE. It solves the cold flow issue, meaning the bolt torque applied during installation is maintained over the long term, resisting relaxation. This greatly reduces maintenance work caused by torque decay requiring frequent retorquing. For flanges with poor surface conditions, selecting the version with EPIX surface protrusions provides even better sealing performance.
💡 Procurement & Selection Suggestions
1. Brand Consistency: There are many imitation Gylon 3500 products on the market. Third-party comparative tests have shown that performance (e.g., FDA extractables) of some imitations can significantly differ from genuine products. It is recommended to purchase authentic RF Gylon 3500 Insulation Gasket from authorized channels. Typically, prices are relatively high; do not try to save money by purchasing products severely underpriced compared to the market average.
2. Specification Clarity: Confirm the required gasket standard (e.g., ASME B16.21), dimensions, pressure rating (e.g., 150LB), and type (e.g., RF for raised face) to ensure the selected RF Gylon 3500 Insulation Gasket matches your flanges.
3. Complete Kit: For insulation applications, be sure to purchase a complete RF Gylon 3500 Insulation Gasket kit that includes G11 insulating sleeves, insulating washers, and ZPS anti-short-circuit sealing components to achieve reliable electrical isolation.
1. Brand Consistency: There are many imitation Gylon 3500 products on the market. Third-party comparative tests have shown that performance (e.g., FDA extractables) of some imitations can significantly differ from genuine products. It is recommended to purchase authentic RF Gylon 3500 Insulation Gasket from authorized channels. Typically, prices are relatively high; do not try to save money by purchasing products severely underpriced compared to the market average.
2. Specification Clarity: Confirm the required gasket standard (e.g., ASME B16.21), dimensions, pressure rating (e.g., 150LB), and type (e.g., RF for raised face) to ensure the selected RF Gylon 3500 Insulation Gasket matches your flanges.
3. Complete Kit: For insulation applications, be sure to purchase a complete RF Gylon 3500 Insulation Gasket kit that includes G11 insulating sleeves, insulating washers, and ZPS anti-short-circuit sealing components to achieve reliable electrical isolation.
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