Three-quarter view of constant air volume terminal box with round inlet and control enclosure

クリーンルーム空気分配システム

一定の空気容積ターミナルボックス

A single-duct terminal that measures primary airflow and positions an internal damper to maintain a fixed supply or extract volume as upstream pressure changes.

Pressure-Independent Air Volume
Integrated Flow Pickup
Low-Leakage Damper
Accessible Control Enclosure

見積もりリクエスト製品案内

商品紹介

The constant air volume terminal box provides a defined air quantity to a cleanroom branch without requiring the main duct pressure to remain perfectly steady. A multi-point inlet sensor reads velocity pressure across the round connection, while a calibrated controller drives the internal damper to the scheduled setpoint. The rectangular galvanized-steel casing transitions directly to downstream ductwork and keeps the actuator, tubing and controller outside the primary airstream for inspection. Optional acoustic lining and discharge attenuator sections can control breakout and regenerated sound in ceiling voids.

主要な特徴

A multi-point inlet pickup averages velocity across the branch instead of relying on a single local pressure reading.

Closed-loop damper control maintains the selected air quantity through normal variations in system static pressure.

The external control enclosure leaves the actuator and pressure tubing reachable without opening the supply duct.

A rectangular slip-and-drive discharge connection simplifies transition to branch ductwork or a downstream reheat section.

お客様の製品に関する懸念事項

A constant-volume branch must hold its scheduled flow despite filter loading and upstream pressure movement while remaining quiet and serviceable above the ceiling.

Branch airflow rises whenever the main supply fan increases static pressure.The flow sensor and modulating damper continuously correct the terminal opening to retain the programmed volume.

A poorly selected inlet size produces unstable readings at low cleanroom airflow.Multiple inlet diameters and calibrated pickup factors allow the sensor velocity to stay within a useful control range.

Damper-generated noise travels directly to a ceiling diffuser.A lined casing or downstream attenuator section absorbs regenerated sound before the branch enters the occupied space.

Controls cannot be inspected after adjacent ceiling services are installed.A side-mounted removable enclosure groups the actuator, controller and tubing in one visible service location.

典型的な用途

Constant supply airflow to clean production roomsFixed extract volume from pressure-controlled support spacesGowning-room ventilation branchesLaboratory make-up air terminalsMedical-device assembly HVAC zones

技術的なパラメータ

Representative construction ranges for a single-duct cleanroom constant-volume terminal are shown below.

コア材料	Galvanized-steel casing with steel damper blade, aluminum flow pickup and external control assembly
パネルの厚さ	0.8–1.2 mm galvanized casing panels
有効幅	200–800 mm rectangular discharge width
最大長さ	Up to 1200 mm including optional attenuator or reheat section
鋼鉄の厚さを直面する	0.8–1.2 mm galvanized sheet-steel casing
コア密度	Approximately 7850 kg/m³ for the steel casing and damper components
熱伝導率	Approximately 45–60 W/(m·K) for the steel casing and damper components
表面仕上げ	Clean mill-galvanized casing with optional white powder-coated exterior
ジョイントタイプ	Round beaded inlet collar and rectangular slip-and-drive discharge connection
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

Pressure-independent digital or analog controlsFactory-set constant-volume mechanical controlInternal acoustic liner or integral silencerHot-water or electric reheat section

Planning a Constant Air Volume Terminal Box specification?

寸法、設置条件、性能目標、必要な表面仕上げをお送りください。

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