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Inward Cross-section Blue Modified PTFE Spring Energized Seal
- Category：Spring Energized Seals / PTFE Seals
- Temperature：-60℃ ~ +250℃
- Material：Glass Filled Modified PTFE + Stainless Steel Spring
- Color：Blue
- Hardness：Shore D 55~65
- Product description：Inward U cross-section design blue modified PTFE spring energized seal, equipped with built-in V-type stainless steel spring. Adopts glass fiber filled PTFE material, featured with excellent anti-creep, wear resistance, chemical corrosion resistance and self-lubricating performance. Reliable sealing under zero pressure and high pressure, automatic compensation for wear and misalignment. Widely applied in valves, pressure vessels, flanges, refrigeration compressors, hydraulic and vacuum equipment for internal pressure static and low-speed dynamic sealing.
5.0
design customization
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Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
1. Product Advantages
- Inward U-shaped cross-section, specially designed for internal pressure sealing
- Blue glass filled modified PTFE, outstanding anti-creep and wear resistance
- Built-in stainless steel V-spring, constant preload and automatic wear compensation
- Wide temperature tolerance from -40℃ ~+260℃
- Excellent chemical corrosion resistance and self-lubricating property
- Reliable sealing performance under vacuum, low pressure and high pressure
- Long service life, low friction and no crawling during operation
2. Working Principle
The seal adopts inward profile structure with built-in V-type stainless steel spring. The spring provides initial pre-tightening force to fit the sealing surface tightly. With the increase of medium pressure, the seal lip expands outward to achieve self-tightening effect. It can automatically compensate for wear, assembly deviation and thermal deformation, maintaining stable sealing performance all the time.
3. Product Details
This is an inward cross-section spring energized seal made of high-quality blue glass fiber modified PTFE. Equipped with 304 or 316L stainless steel spring, it features stable dimension, high hardness and good pressure resistance. The special inward section structure perfectly matches internal pressure working conditions, suitable for static sealing and low-speed dynamic sealing scenarios. Custom sizes and special material grades are available upon request.
4. Application Range
- Petrochemical industry: Valves, pipelines and pressure vessels
- Refrigeration & HVAC: Compressors and heat exchangers
- Hydraulic & Pneumatic: Cylinder end covers and hydraulic components
- Vacuum equipment: Vacuum chambers and flange connections
- Machinery equipment: General industrial static and low-speed dynamic sealing
5. FAQ
Q1: What is the main material of this seal?
A1: Glass fiber modified PTFE body with stainless steel energized spring.
A1: Glass fiber modified PTFE body with stainless steel energized spring.
Q2: What is the temperature working range?
A2: -40℃ ~+260℃
A2: -40℃ ~+260℃
Q3: Is it suitable for internal pressure condition?
A3: Yes, inward cross-section is specially designed for internal pressure sealing.
A3: Yes, inward cross-section is specially designed for internal pressure sealing.
Q4: Can you provide customized sizes?
A4: Custom dimensions and special materials are available according to drawings or samples.
A4: Custom dimensions and special materials are available according to drawings or samples.
6. Company Selling Points
- Professional manufacturer focused on PTFE seals and spring energized seals
- Strict raw material inspection and full production quality control
- Support standard sizes and non-standard custom processing
- Stable supply capacity and fast delivery time
- Professional technical team provides sealing solution support
- Competitive factory direct price and reliable after-sales service
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