说明
### **Product Features of PTFE Sealing Gaskets (Food-Grade Applications)**
—
#### **Core Product Features**
1. **High Purity & Food-Grade Certifications**
– Material: **Pure PTFE (Polytetrafluoroethylene)**, non-toxic and odorless, compliant with **FDA, EU 10/2011, EHEDG**, and other international food-contact standards.
– Smooth surface (Ra ≤0.8μm) with non-porous structure prevents bacterial growth, compatible with **CIP/SIP cleaning and sterilization**.
2. **Temperature & Pressure Resistance**
– **Temperature range**: **-200°C to +260°C** (short-term tolerance up to +300°C), suitable for steam sterilization (e.g., SIP at 121°C–135°C) and cryogenic environments.
– **Pressure range**: **0.1–10 MPa** (adjustable based on thickness and design), ideal for high-pressure sealing in food-grade pipelines and valves.
3. **Chemical Inertness & Non-Stick Properties**
– Resistant to strong acids, alkalis, organic solvents, and oxidizers; no degradation from prolonged exposure to corrosive cleaners (e.g., NaOH, H₂O₂).
– Ultra-low surface energy prevents material adhesion (e.g., jams, dairy products), ensuring easy cleaning.
4. **Custom & Standard Production**
– **Standard components**: Available in common sizes (DN10–DN500) and thicknesses (1–10mm), compatible with sanitary flanges and valves (e.g., Tri-Clamp, DIN standards).
– **Custom non-standard designs**: Supports specialized shapes, lip/groove seals, and multi-layer composites (e.g., PTFE+elastomer) for complex applications.
5. **Longevity & Low Maintenance**
– Excellent creep resistance and resilience (compression deformation <5%), reducing replacement frequency.
– Lubrication-free design eliminates contamination risks.
—
#### **Comparison with FKM (Fluorocarbon Rubber) & EPDM Seals**
| **Property** | **PTFE** | **FKM (Fluorocarbon Rubber)** | **EPDM** |
|—————————-|————————————|—————————————|————————————|
| **Temperature Range** | -200°C to +260°C | -20°C to +200°C | -50°C to +150°C |
| **Chemical Resistance** | Superior (acids, alkalis, solvents)| Excellent (oils, fuels, aromatics) | Good (water, steam, mild chemicals)|
| **Pressure Tolerance** | Up to 10 MPa | Up to 5 MPa | Up to 3 MPa |
| **Non-Stick Performance** | Excellent | Moderate | Poor |
| **Hygiene & Cleanability** | Best (smooth, non-porous surface) | Good (requires surface treatment) | Moderate (porous structure) |
| **Cost & Lifespan** | Higher upfront cost, longer lifespan | Moderate cost, shorter lifespan | Lower cost, moderate lifespan |
**Key Applications**:
– **PTFE**: High-temperature sterilization, corrosive media, and ultra-clean environments (e.g., pharmaceutical CIP systems).
– **FKM**: Fuel/oil-resistant seals in non-food industries (e.g., automotive).
– **EPDM**: Water/steam systems and low-cost food-grade applications (e.g., beverage bottling).
—
#### **Primary Applications**
1. **Food Processing Equipment**
– **Sanitary valve sealing**: Static seals for pumps, butterfly valves, and ball valves (e.g., Tri-Clamp valve gaskets).
– **Pipeline connections**: Flange sealing for tanks, reactors, and transfer lines (e.g., fermentation tanks, concentrators).
2. **Dairy & Beverage Industry**
– **Aseptic filling systems**: Seals for fillers and CIP circuits, resistant to high-temperature sterilization and acidic media.
– **Dairy storage tanks**: Prevents microbial contamination in milk/yogurt storage.
3. **Pharmaceutical & Biotech**
– **Lyophilizers & autoclaves**: Seals for high-vacuum, high-temperature environments (e.g., freeze-dryer doors).
– **Bioreactors**: Chemical and steam-resistant pipeline seals.
4. **Special Fluid Handling**
– **High-viscosity media**: Anti-stick seals for chocolate or jam pipelines.
– **Corrosive cleaners**: Long-term sealing in CIP systems using NaOH/HNO₃.
—
#### **Product Models & Specifications**
| **Type** | **Standard Model** | **Temp./Pressure Range** | **Applications** |
|———————|——————–|————————–|—————————————|
| **Flat Gasket** | PTFE-FS-DN50 | -200°C~+260°C / 0.1–6MPa | Sanitary flange sealing (e.g., beverage lines) |
| **Lip Seal** | PTFE-LIP-20mm | -50°C~+200°C / 0.1–4MPa | Dynamic pump seals (e.g., juice transfer) |
| **Composite Gasket**| PTFE-EPDM-DN80 | -40°C~+150°C / 0.1–3MPa | Cryogenic equipment (e.g., ice cream production) |
| **Custom Gasket** | PTFE-Custom-01 | Customizable | Specialized equipment (e.g., bioreactor flanges) |
—
#### **Industry & Product Keywords**
– **Industry Keywords**: Food-grade seals, sanitary valves, pharmaceutical equipment, dairy processing, aseptic filling, CIP/SIP systems, biotech, EHEDG compliance.
– **Product Keywords**: PTFE gaskets, fluoropolymer seals, FDA-certified gaskets, non-stick seals, high-temperature gaskets, custom PTFE components, Tri-Clamp seals.
—
**Summary**: PTFE sealing gaskets dominate **food and pharmaceutical industries** due to their **chemical inertness**, **extreme temperature resistance**, and **hygienic performance**. While FKM and EPDM are cost-effective for specific scenarios (e.g., fuel resistance or steam systems), PTFE excels in **high-purity, corrosive, or high-temperature environments**. Custom designs further enhance adaptability, ensuring reliable sealing for both standard and specialized equipment.
关于我们
宏泰专业生产高品质的卫生级阀门和不锈钢管件，主要服务于制药、食品加工和化工等行业。我们的产品采用优质 304、316 和 316L 不锈钢制成，具有出色的耐腐蚀性，并采用激光切割和精密焊接等先进制造技术精心制作而成。HongTai 的阀门专为卫生和流体完整性而设计，是要求最佳清洁度和持久性能的行业的理想选择。
为什么选择我们
质量保证： 我们严格控制从原材料到成品的每个生产阶段，确保符合 ISO9001 和国际认证，包括 3A、DIN 和 ISO 标准。
行业专长： 数十年为食品、饮料和制药等关键行业提供解决方案的经验。
先进技术： 我们拥有最先进的设备，包括定期更新的数控车床和精密工具，确保每件产品都具有较高的表面精度和较小的公差。
100% 检验： 每件产品在出厂前都要经过严格的测试，包括尺寸和阀门泄漏检测，以确保质量完美无瑕。
覆盖全球： 我们以始终如一的质量和准时交货赢得了全球企业的信赖。
选择 HongTai，您将在阀门和管件解决方案方面获得无与伦比的可靠性、性能和创新性。
联系我们
如需了解更多信息或讨论您的要求，请通过以下方式联系我们：
电子邮件：ht@htcdf.com
whatsapp：(86)18875809195
您还可以访问我们的 联系我们 页面获取更多联系方式。
评论
目前尚无评论。