고성능 급기구(HEPA 디퓨저 박스)

제품 개요

고성능 급기구는 HEPA 필터, 정압 챔버, 확산판을 하나로 통합한 천장 매입형 급기 말단으로, 덕트에 연결해 청정실의 마지막 여과 단을 담당합니다. FFU와의 차이는 자체 송풍기가 없다는 점이며, 동력을 중앙 공조기에서 받으므로 구조가 단순하고 모터 소음이나 모터 수명 문제가 없습니다. 필터는 아래에서 끼우는 설계라 천장 속으로 올라가지 않고 실내에서 교체할 수 있습니다. 상부 흡입과 측면 흡입 두 가지 접관 방향을 고를 수 있으며, 보 아래 높이가 부족할 때 측면 흡입형을 쓰면 설치 공간을 한 단계 더 아낄 수 있습니다.

제품 특성

►**Filtration efficiency**: ≥99.99% (particles ≥0.3μm) ►**Initial resistance**: ≤230Pa ►**Duct connection**: I = top entry, II = side entry ►**Rated airflow notation**: model number ×100 m³/h ►**Diffusion**: standard diffuser plate; perforated diffusion mesh optional (suffix GKF) ►**Filter replacement**: bottom-loaded, changed from within the room

Specifications

Top-entry model	Side-entry model	Rated airflow m³/h	Filter size mm	Overall K×L×H/h mm	Duct flange A×B mm	Ceiling opening mm	Weight kg
c.05 I	c.02 II	500	320×320×90	370×370×360/480	200×200	380×380	20
c.10 I	c.10 II	1000	610×610×69	660×660×360/480	320×200	670×670	36
c.15 I	c.15 II	1500	915×610×69	965×660×360/480	500×250	975×670	43
c.20 I	c.20 II	2000	1220×610×69	1270×660×360/480	630×250	1280×670	53
c.25 I	c.25 II	2500	1220×610×80	1270×660×360/480	630×250	1280×670	60
c.30 I	c.30 II	3000	1260×630×90	1310×680×360/480	630×250	1320×690	65

견적 문의

LINE @baisheng

Email：sales@baisheng-tech.com

전화：+886-2-2598-1958

상세 설명

When to use a diffuser box and when to use an FFU

Both are cleanroom supply terminals; the difference is where the fan sits. A diffuser box is fed by the central air handler, so the terminal contains only a filter and a diffuser plate. Fewer devices, fewer moving parts, and no hundreds of motors above the ceiling to maintain, which keeps long-term maintenance cost low. The trade-off is that airflow distribution depends on ducts and dampers, so layout changes mean duct work. An FFU distributes fans to every terminal, making layout changes easy at the price of a motor at each point. For turbulent-flow cleanrooms, localised clean zones, or existing plants where AHU static pressure is already stretched, the diffuser box is usually the more sensible choice.

Choosing top entry or side entry

The top-entry type (I) connects above the box, giving the shortest air path and the lowest resistance. It is the default, provided the ceiling void is deep enough for the duct elbow. The side-entry type (II) connects from the side and needs no elbow clearance above the box, which suits retrofits with tight headroom below beams. At the same airflow the air makes one more turn inside the box, so uniformity is slightly below the top-entry version and depends more on the diffuser plate to spread the flow.

Initial resistance and when to change the filter

Initial resistance as supplied is ≤230Pa. Common practice is to replace at twice the initial value — that is, when the differential pressure reaches roughly 460Pa. Fit a differential pressure gauge or leave a measuring port at the terminal and judge by measured pressure rather than months in service. The same filter may reach final resistance within six months in a dusty environment and still show little rise after two years in a clean one. Replacing on a calendar produces both kinds of waste at once: filters discarded with life left, and filters left in long past their limit.

선정 참고자료

주문 전에 등급 사양, 여재 특성, 운전 환경이 요구 조건에 맞는지 먼저 확인하시기 바랍니다.

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