Negative-pressure pharmaceutical weighing booth in complete three-quarter view

層流 · 封じ込め装置

負圧計量ブース

A powder weighing enclosure operated below the surrounding room pressure so air moves inward through the access opening and airborne material stays within the controlled filtration path.

Negative-Pressure Boundary
Inward Access-Opening Capture
Staged Containment Filtration
Monitored Exhaust Balance

見積もりリクエスト製品案内

商品紹介

This booth adds a controlled negative-pressure relationship to the normal downflow weighing layout. Air enters through the open access face, joins the filtered vertical supply and returns through low-level extraction grilles. A monitored exhaust branch maintains the inward boundary while staged filters retain airborne powder. The booth pressure, airflow and building exhaust connection are selected for the material hazard and room arrangement rather than assigned one universal containment value.

主要な特徴

A controlled exhaust branch keeps the booth below the adjacent room pressure.

Inward air at the access opening opposes powder migration into the corridor.

Low-level returns capture powder without directing a strong stream across the balance pan.

Differential-pressure monitoring distinguishes booth pressure from filter loading.

Contained filter-change options reduce contact with collected powder during maintenance.

お客様の製品に関する懸念事項

Higher-risk powder weighing needs an inward containment boundary without making the balance unstable or exhausting uncontrolled dust downstream.

Powder can escape through the open booth face during container handling.Monitored inward face air carries released dust into the controlled return path.

Strong extraction creates unstable balance readings.A low-turbulence supply and remote low return grilles keep high velocity away from the pan.

Filter loading changes the room-to-booth pressure relationship.Separate pressure sensing tracks filter resistance and the containment boundary.

Maintenance opens contaminated filter compartments to the room.Bag-in/bag-out or other contained change arrangements isolate the loaded filters.

典型的な用途

Potent compound weighingSensitizing powder subdivisionHazardous formulation dispensingContained sample preparation

技術的なパラメータ

Typical configurable construction ranges for a negative-pressure weighing booth are listed below.

コア材料	Mineral-wool insulated steel enclosure with SUS316L work-zone liner and staged HEPA filtration housings
パネルの厚さ	75-100 mm insulated containment panels
有効幅	1500-4000 mm clear working width
最大長さ	Up to 6000 mm booth depth
鋼鉄の厚さを直面する	1.2-1.5 mm SUS316L internal facing; 1.0-1.2 mm outer steel
コア密度	100-140 kg/m³ high-density mineral-wool core
熱伝導率	ミネラルウールコアのための 0.035 — 0.045 W / （ m · K ）
表面仕上げ	Fine-brushed or electropolished SUS316L internal surfaces with sealed external coating
ジョイントタイプ	Pressure-sealed flush panel joints with welded return ducts and contained filter-change collars
カスタマイズ	意図したアプリケーションと動作環境に基づいて利用できます。

利用可能なオプション

Recirculating or once-through exhaustBag-in/bag-out filter housingsIntegrated drum lift and weigh tableRoom pressure and airflow display

Planning a Negative-Pressure Weighing Booth specification?

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