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غرف الأبحاث معدات قطع الغيار
FFU فلتر HEPA
A compact mini-pleat final filter that restores high-efficiency particle filtration in an existing cleanroom fan filter unit.
- Dense Mini-Pleat Media
- Low-Profile FFU Frame
- Sealed Perimeter Pack
- Matched Gasket Interface
مقدمة المنتج
The FFU HEPA filter is the final air-cleaning element installed beneath the fan section of a fan filter unit. Fine glass-fiber media is formed into closely spaced mini-pleats and stabilized with hot-melt separators to provide a large filtration area within a shallow frame. Perimeter potting prevents bypass between the media pack and aluminum frame, while a compression gasket seals the filter against its supporting surface. Replacement size, efficiency class, pressure drop, gasket side and airflow direction must match the original FFU design.
الخصائص الرئيسية
Continuous perimeter potting closes the leakage path between media and frame.
A fitted compression gasket seals the filter to the FFU housing or ceiling interface.
Protective face grids reduce accidental pleat damage during handling and installation.
مخاوف المنتج للعملاء
A replacement HEPA panel must fit the FFU precisely while preserving airflow and eliminating bypass around the media pack.
A frame with incorrect dimensions leaves gaps or cannot enter the FFU housing.Face size, depth and corner tolerances are matched to the original filter envelope.
An unsuitable pressure drop reduces delivered cleanroom airflow.Media area and pleat geometry are selected for the FFU operating face velocity.
Air bypasses the media through an incompatible gasket arrangement.Gasket material, width, thickness and upstream or downstream position are matched to the sealing surface.
Pleats are damaged during overhead handling and replacement.Optional upstream and downstream protective grids shield the media without blocking its open area.
تطبيقات نموذجية
Cleanroom fan filter unitsLaminar-flow ceiling modulesMini-environment final filtrationFFU filter replacement programs
المعلمات الفنية
Typical construction ranges for replacement FFU mini-pleat HEPA filters are shown below.
| المواد الأساسية | Water-resistant micro-glass-fiber HEPA media with hot-melt mini-pleat separators |
|---|---|
| سمك اللوحة | 50-120 mm nominal filter depth |
| العرض الفعال | 305-610 mm nominal face width |
| الحد الأقصى الطول | ما يصل إلى 1220 مم طول الوجه الاسمي |
| الصلب يواجه سمك | 0.4-0.8 mm optional galvanized-steel protective grid wire or sheet |
| الكثافة الأساسية | Approximately 80-150 kg/m³ nominal pleated media-pack bulk density |
| الموصلية الحرارية | Approximately 0.035-0.050 W/(m·K) for the dry glass-fiber media pack |
| إنهاء السطح | Natural anodized-aluminum frame with white media and dark-gray closed-cell gasket |
| نوع المشترك | Mini-pleat pack continuously potted into a mitered frame with compression-gasket seal |
| التخصيص | متوفر على أساس التطبيق المقصود وبيئة التشغيل. |
الخيارات المتاحة
Matched HEPA efficiency classUpstream or downstream gasketSingle or double protective gridCustom FFU face size and depth
Planning a FFU HEPA Filter specification?
أرسل لنا الأبعاد الخاصة بك، شروط التثبيت، أهداف الأداء والتشطيب السطحي المطلوب.
