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| Structure: | Single End |
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| Pressure: | Low Mechanical Seal |
| Speed: | High-Speed Mechanical Seal |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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PTFE GASKETS
come in all shapes and sizes,Gaskets are an integral component of any device which requires the confinement of a gas or liquid. They compensate for the unconformity of mating surfaces. These surface irregularities may be minute or large depending on the purpose of the device but in all cases, the gasket is required to compensate for the difference while limiting the flow of fluid in either direction. Gaskets differ from seals in that gaskets are normally cut from sheets or rolls while seals are formed individually in their own configuration. A flat cut gasket is derived from material of specific thickness and to a configuration that is designed for a specific application.
CATEGORIES:
Fill different materials according to customers' requirement, such as carbon powder, polystyrene, glass fiber, graphite, copper powder, etc.| Glass Fiber | Increases compressible strength, rigidity and wear. Reduces creep and cold flow Minimal effect on chemical and electrical properties |
| Carbon | Increases compressible strength, hardness, wear, and load properties. Good chemical resistance Various types and amounts of carbon can be added to alter conductivity |
| Graphite | Reduces coefficient of friction Reduces initial wear Increases strength |
Molybdenum Disulfide |
Increases hardness, stiffness, and wear Minimal effect on chemical and electrical properties |
Polybenzoate |
Improve the creep resistance, dimensional stability,high temperature; |
| Bronze | Increases hardness and wear resistance Increases dimensional stability and compressive strength Not suitable for corrosive or electrical applications |
| Property | Unit | Pure PTFE Result |
| Apparent density | g/cm3 | 2.10~2.30 |
| Tensile strength | MPa | ≥15 |
| Ultimate elongation | % | ≥150 |
Chunhuan Group (Zhenjiang Chunhuan Sealing Group Co., Ltd.), established in 1985, is a leading manufacturer of fluoroplastic products, chemical semiconductor linings, and new energy sealing gaskets. The company primarily focuses on the research, development, and production of fluoroplastic series sealing products (for hydrogen energy and nuclear power applications) and chemical semiconductor linings. With subsidiaries in South Korea and Shanghai, the group has also established a joint venture with South Korea's Houcheng Group for semiconductor lining equipment. Main production: PTFE products, metal seals series, steel lining anti-corrosion series, engineering plastics series,rubber products series,it is the leading enterprise in the national fluoroplastics industry. The company supplies more than 300 varieties of PTFE composite modified materials,ranging from standard composite modified materials (bronze,glass fiber,carbon,graphite,etc.) to customized solutions to meet different production needs of customers.The company provides flexible quantity and fast delivery service. The engineers have 35 years working experience in the field of PTFE,serving customers in more than 30 countries.
1. Q: Are your PTFE gaskets made from virgin material? Do you use any recycled content?
A: We use 100% virgin PTFE with no regrind or recycled material added, ensuring consistent material properties, chemical stability, and purity for demanding applications.
2. Q: Can the gasket dimensions be fully customized according to my drawings? What is the size range?
A: Yes, we offer full custom sizes, from micro precision gaskets to large flange gaskets. The range is flexible and based on your drawing requirements with no strict limitations.
3. Q: Besides pure PTFE, what reinforced filler options do you provide?
A: We offer various fillers such as glass fiber, carbon fiber, graphite, molybdenum disulfide, and bronze powder to optimize performance for temperature, wear resistance, conductivity, etc.
4. Q: What is the minimum order quantity for custom gaskets? Do you charge for prototyping?
A: MOQ is flexible; we support small batch orders and prototyping. A sample fee may apply depending on complexity, but it can be refunded upon formal order placement. Please contact our sales team for details.
5. Q: What temperature and pressure ranges can these gaskets withstand?
A: Pure PTFE gaskets have a long-term service temperature range of -196ºC to +260ºC. Filled grades offer improved dimensional stability at high temperatures. Pressure capability depends on gasket design and flange conditions, typically suitable for low to medium pressure applications.
6. Q: What dimensional tolerances can you achieve? Can they meet precision equipment requirements?
A: We adhere to strict tolerance control and can achieve ±0.05mm or tighter based on your requirements, suitable for semiconductor, medical, and precision machinery applications.
7. Q: Are your products compliant with certifications such as FDA and RoHS?
A: Our virgin PTFE raw materials meet FDA food contact requirements and comply with RoHS standards. Specific certification reports are available upon request with shipment.
8. Q: What is the lead time and supply stability for large volume orders?
A: We have a stable raw material supply chain and efficient production capacity. Standard sizes typically deliver within 7-15 days; custom sizes depend on complexity. Long-term orders ensure consistent and reliable supply.
9. Q: My application involves highly corrosive media. Can your material guarantee corrosion resistance?
A: PTFE offers excellent chemical resistance to almost all strong acids, alkalis, and organic solvents. Using virgin material without regrind eliminates the risk of media penetration or corrosion due to material defects.
10. Q: How can I be sure the gaskets I receive match my custom specifications? Is there traceability?
A: Each batch comes with an inspection report. Critical dimensions are fully inspected, and material lots are traceable. We can provide photos or videos before shipment to ensure conformance to your drawings.
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