Super Quality PTFE Bonded EPDM Flange Sealing Pipe Gasket Excellent Resistance Long Service Life High Quality
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Product Highlights
- Dual Sealing Rings: Primary and secondary rings ensure broad chemical resistance and non-contamination.
- High Chemical Resistance: Resists oils, gases, and chemicals, preventing fluid pollution in ultra-pure applications.
- Low Bolt Torque: Design allows secure sealing with low bolt torque, simplifying installation and maintenance.
- Durable EPDM Memory: EPDM's memory characteristic ensures long-lasting sealing performance and leak prevention.
- 100% Virgin PTFE: Constructed from 100% virgin PTFE bonded with EPDM rubber for robust strength.
- Multi-Certification: Certified by RoHS, UR, ISO, and CE for quality and safety standards.
- Customizable Options: Color, temperature range, density, and pressure ratings can be customized per requirements.
Product Attributes
- Customization
- Available
- Standard
- Standard
- Material
- PTFE
- Model NO.
- 7700
- Usage
- Pump, Compressor, Valve, Piping
- Application
- Machinery
- Certification
- RoHS, UR, ISO, CE
- Color
- White
- Temperature
- -50 to +130℃
- Density
- 1.25g/cm3
- Pressure in Rotary
- 20bar
- Speed in Rotary
- 20m/S
- Classification
- Pure PTFE Packing
- Transport Package
- Cartons
- Specification
- 3mm-50mm
- Trademark
- TOP SEALING
- Origin
- Zhejiang, China
- Production Capacity
- 60 Tons One Month
Product Images of Super Quality PTFE Bonded EPDM Flange Sealing Pipe Gasket Excellent Resistance Long Service Life High Quality
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Product Description
The SunPass EPDM PTFE Envelope Gasket is constructed from Teflon, imparting it with high temperature resistance and robust strength. It is fabricated using 100% virgin PTFE, bonded with EPDM rubber, making it suitable for applications requiring substantial pressure. The EPDM PTFE flange gasket leverages the strengths of both EPDM and PTFE. It comprises two sealing rings - a primary and a secondary - ensuring broad chemical resistance and non-contamination for ultra-pure applications. Additionally, the EPDM's memory characteristic ensures a long-lasting sealing performance.
Application:
It is a versatile solution employed across a wide range of chemical processing applications, including solutions involving oils, gases, and various chemical products where fluid pollution is a significant concern. Particularly valued in the chemical carrier industry, these gaskets provide an effective barrier against leaks and contamination. Their design allows for a secure seal with the added benefit of requiring low bolt torque, which simplifies installation and maintenance while ensuring the integrity of the joint in demanding operational conditions. This makes the EPDM PTFE ENVELOPE GASKET an ideal choice for industries where both chemical resistance and ease of use are critical factors.
Advantages:
High temperature resistant, heat preservation and heat insulation;
Exelient chemical resistance;
Low friction resistance;
Corrosion resistance, ageing resistance and climate resistance;
High tensile strength resistance.
Application Data:
| Material | PTFE |
| Workable Low Temperature(ºC) | -40ºC/'-104ºF |
| Workable High Temperature() | 150ºC/302ºF |








Established in 1979, TENGLONG is a professional manufacturer and exporter of many styles of high-grade and top quality gland packing, ceramic fiber products, fiberglass products, asbestos products, shipping container parts and accessories, PTFE products, and sealing gasket and sheet.
SUNPASS, as a part of TENGLONG, established in 2001, takes charge of export business for TENGLONG, which also has subsidiaries in H.K.- ECHO INDUSTRY LIMITED. Meanwhile, SUNPASS is a leading manufactory, developer, and supplier of quality ISO tank container spare parts
for tank container operators, service, agents, and trading companies SINCE 2001.
Our products have won the leading position in domestic market. And our products have also been exporting to Europe, South America, Australia, Africa, Middle of East and More than Fifty Countries and regions.

1. What is your MOQ?
MOQ may vary by customer's special requirement; we try our best to meet your business requirement.
2. What's your payment terms?
We normally do T/T, and we can also offer western union account for transfer money.
And more flexible payment terms, welcome to have a discuss.
3. Can you provide samples?
A: Yes, we can offer samples, and some samples are free
4. Can you delivery by express?
Yes, we can delivery by any express.
5. When will the sample be ready?
Normally, the sample can be ready in 3 days.
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASI213802". Items marked "" are certified.
Company Profile
Sunpass Sealing Tech, specializes in the production of industrial sealing and thermal insulation materials.
· Founded in 1979
· 50 years of mature technology and experience
· 178 employees
· 12000M2 Modern professional workshop
· 20 + production lines such as sealing gland packing, sealing gasket, glass fiber products, PTFE products, graphite products, ceramic fiber products, rubber products and so on.
Customers are located in more than 200 countries and regions such as China, Russia, South Korea, Japan, Thailand, Saudi Arabia, Egypt, Spain, Germany, France, the Netherlands, Belgium, the United States, Mexico, Brazil, Australia, etc. Sunpass global supply, serving world-renowned enterprises. SUNPASS has a high reputation and influence in the sealing industry at home and abroad.
Mission: Produce High Quality Sealings Innovatively to Protect Industrial Safety.
Vision: Grow to the Most Professional Technology Sealing Manufacturer.
Core Values: Sincere, Focus, Responsibility, Excellence, Innovation Create Maximum Value for Customers, Employees and Partners.
Sunpass Sealing Tech Advantages:
1. Quality guaranteed
2. Competitive Price: Advanced production line & Efficient manufacturing
3. Support Customization: Customized products, customized services
4. Fast Delivery: Full stock, high capacity
5. Qualification certificate: ISO certificate, ECM certificate, etc.
6. Strict internal control, professional team:
6 senior technical experts with more than 20 years experience,
87% professional customer service staff with more than 3 years experience,
8 quality inspectors with more than 5 years experience
7. Product Diversity: One-stop solution to meet the needs of customers for Sealing&Insulation Product
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- 78 Zhenxing West Road, Lianghui Industrial Park, Yuyao City, Ningbo, Zhejiang, China
-
Plant Area
- 6100 square meters
-
Number of Employees
- 86
-
Registered Capital
- 10,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: one month -
Nearest Port
- Ningbo Port
Our Production Capability & Technical Expertise
-
Main Products
- Gland Packing, Graphite Products, Glass Fiber Products, Ceramic Fiber Products, ISO Tank Container Accessories
-
Production Machines
- Braiding Machine, Vacuum Machine, Oven, Forming Machine, CNC Lathe, Cutting Machine, Shearing Machine, Vulcanizing Machine, Compound Machine
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 4 people
-
Own Brand
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2018-07-27
- Export Year
- 1979-01-01
-
Main Markets
- North America, Europe, Southeast Asia/ Mideast, Africa, East Asia(Japan/ South Korea), Australia
-
Number of Foreign Trading Staff
- 10
-
Overseas Agent/Branch
- No
Our Certifications, Standards & Industry Recognition
-
Management System Certification
- Others
FAQ
- What is your MOQ?
- MOQ may vary by customer's special requirement; we try our best to meet your business requirement.
- What's your payment terms?
- We normally do T/T, and we can also offer western union account for transfer money. And more flexible payment terms, welcome to have a discuss.
- Can you provide samples?
- Yes, we can offer samples, and some samples are free
- Can you delivery by express?
- Yes, we can delivery by any express.
- When will the sample be ready?
- Normally, the sample can be ready in 3 days.
Send your message to this supplier
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