Three-quarter view of ePTFE membrane HEPA filter in an anodized-aluminium frame

Воздушные фильтры и химическая фильтрация

ePTFE мембрана HEPA фильтр

A cleanroom HEPA panel using expanded PTFE membrane media for low pressure drop, moisture resistance and reduced fibre shedding in sensitive processes.

Expanded PTFE Membrane
Low Fibre Shedding
Moisture Resistant
Chemical-Tolerant Media

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Введение продукции

The ePTFE membrane HEPA filter uses a microporous expanded-polytetrafluoroethylene layer supported by a stable nonwoven substrate and formed into a mini-pleat pack. The membrane's smooth hydrophobic surface resists wetting and does not release glass fibres into downstream process air. Low-outgassing polyurethane potting secures the pack inside an anodized-aluminium frame, while polymer separators maintain even pleat spacing. The design is suited to pharmaceutical decontamination cycles, semiconductor mini-environments and other processes sensitive to moisture, chemical exposure or fibre release.

Основные характеристики

Microporous ePTFE membrane provides HEPA capture with a lower fibre-shedding risk than exposed microglass media.

Hydrophobic filter media withstands brief moisture exposure and recovers without absorbing water into the fibre matrix.

Low-outgassing frame, separator and potting materials suit sensitive manufacturing environments.

The thin membrane pack can provide low initial resistance when matched to the required airflow and efficiency class.

Обеспокоенность клиентов продуктами

Sensitive clean processes need final filtration that limits fibre release and remains stable when exposed to humidity or periodic decontamination agents.

Glass fibres released from a damaged filter can contaminate a critical process.The supported ePTFE membrane presents a non-fibrous downstream filtration surface.

Condensation temporarily raises the resistance of conventional fibrous media.Hydrophobic membrane media resists liquid-water wetting and supports quicker recovery after moisture exposure.

Cleaning agents attack media binders or pack adhesives.Compatible PTFE, polyurethane and aluminium components are selected for the planned decontamination chemistry.

Molecular emissions from filter materials interfere with a sensitive process.Low-outgassing substrates, separators and potting compounds reduce avoidable material emissions.

Типичные приложения

Semiconductor cleanroom ceilingsPharmaceutical aseptic areasWet-decontamination cleanroom terminalsLithography and optics mini-environmentsSensitive laboratory isolators

Технические параметры

Typical construction ranges for an ePTFE membrane HEPA cleanroom panel are shown below.

Основной материал	Supported expanded-PTFE membrane HEPA media with polymer mini-pleat separators
Толщина панели	66–90 mm aluminium-frame depth
эффективная ширина	305–610 mm nominal face width
Максимальная длина	Up to 1220 mm nominal face length
Толщина линий стали	0.4–0.6 mm powder-coated or stainless-steel protective faceguard
Плотность ядра	Approximately 18–32 kg/m³ equivalent supported ePTFE media-pack density
Теплопроводимость	Approximately 0.030–0.040 W/(m·K) for the dry supported ePTFE media pack
Поверхностная отделка	Natural anodized aluminium with low-outgassing white or stainless faceguards
Объединенный тип	Continuous PU gel channel, EPDM gasket or extruded knife-edge seal
Customization	Доступно в зависимости от предполагаемого применения и операционной среды.

Доступные варианты

H13 or H14 membrane gradeGel, gasket or knife-edge perimeter sealOne-sided or two-sided protective gridLow-outgassing cleanroom component package

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