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China Sintered PE Cap Suppliers & Factory: High-Quality UHMW-PE Filtration Elements for Gas and Liquid Applications
Parameters of Sintered PE cap
| Parameter Category | Specific Specification |
|---|---|
| Material | Ultra-high molecular weight polyethylene (UHMW-PE) or HDPE |
| Dimensions (OD×ID×Length) | Commonly used: Φ31×15×1000, Φ38×20×1000, Φ50×20×1000 (support customization) |
| Filtration precision | 0.2-140μm (can be customized 0.3μm, 0.45μm and other high-precision models) |
| Working Pressure | ≤0.6MPa |
| Temperature Range | -0.6MPa |
| Temperature range | -40 ℃ to 80 ℃ (long-term); short-term up to 100 ℃ |
| Fitting Specifications | M12, M14, M20, M22, M30, M36, etc. (Flat Pressure / Insertion) |
| Porosity | 30%-50% |
| Certifications | FDA (food grade), ISO 9001/14001, GMP (pharmaceutical grade) |
Product features
✓ Corrosion resistance
resistant to strong acids, alkalis and organic solvents (except strong oxidizing agents such as concentrated sulfuric acid).
✓ Temperature resistance
continuous working temperature up to 80℃, short-term can withstand 100℃.
✓ Mechanical properties
compressive strength 0.3-0.6MPa, good toughness, not easy to break.
✓ Reusable
support physical backblowing (0.6MPa compressed air) or chemical cleaning (acid/alkali soaking) regeneration.
Production Process of Sintered PE cap
1. Raw material processing
UHMWPE powder is selected and mixed with plasticizers, stabilizers and other auxiliary materials.
2. Mold filling and pre-pressing
The mixture is filled into the mold and pre-pressurized mechanically to form a preliminary shape.
3. High temperature sintering molding
Heating in three stages (low-temperature pre-molding → medium-temperature sintering → high-temperature strengthening), the temperature is controlled at 110-130 ℃ (lower than the melting point of PE), so that the powder particles are fused and bonded to form a porous structure.
4. Post-treatment and processing
After demolding, cut to the required length and install the joints (e.g. M20, M30 thread).
5. Quality Inspection
Conduct bubble uniformity test, compressive strength test and chemical compatibility test.
Advantages of Sintered PE cap
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1. High efficiency filtration: high porosity (50%) and uniform pore size design, high flow rate and not easy to be clogged.
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2. Economical and durable: can be repeatedly cleaned and regenerated, life expectancy of 1-3 years, the cost is lower than the ceramic cartridge.
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3. Safe and environmentally friendly: non-toxic and odorless, in line with the hygiene standards of the food and pharmaceutical industry.
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4. Strong adaptability: support customized shaped structure (piece, tube, rod, cap, etc.) and special precision requirements.
Application of Sintered PE cap
Pharmaceutical/Medical
Decarburization Filtration, Oral Liquid Clarification, Biologics Purification
Chemical
Acid filtration (e.g. barium sulfate, aluminum hydroxide), catalyst recovery
Food & Beverage
Beer/Wine Clarification, Edible Oil Filtration, Dairy Line Filtration
Environmental Water Treatment
Electroplating wastewater heavy metal retention, oilfield well water filtration, reverse osmosis pretreatment
Electronics/Semiconductor
Ultra-pure water preparation, gas purification (compressed air oil mist removal)
Gas Treatment
Industrial Exhaust Dust Recovery, Ozone Sterilization System Air Distribution
Frequently Asked Questions
Q: What materials are Sintered PE caps made of?
They are manufactured from Ultra-high molecular weight polyethylene (UHMW-PE) or High-Density Polyethylene (HDPE).
Q: What is the temperature limit for Sintered PE caps?
The continuous working temperature range is from -40 ℃ to 80 ℃, and they can withstand temperatures up to 100 ℃ for short-term operations.
Q: How do you clean and regenerate Sintered PE caps?
They support physical backblowing using 0.6MPa compressed air or chemical cleaning via acid/alkali soaking regeneration.
Q: What filtration precisions can be customized?
The standard filtration precision ranges from 0.2 to 140μm, and high-precision models like 0.3μm and 0.45μm can also be customized.
Q: Are Sintered PE caps safe for food and medical industries?
Yes, they are non-toxic, odorless, and meet the hygiene standards of both the food and pharmaceutical industries with FDA and GMP certifications.