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

클린룸 공기 분배 시스템

일정 공기량 터미널 박스

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

견적 요청 제품 찾아보기

상품 소개

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.

주요 기능

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.

고객 제품 관심사

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.

일반적인 응용 프로그램

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

기술 매개변수

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

핵심 재료	Galvanized-steel casing with steel damper blade, aluminum flow pickup and external control assembly
패널 두께	0.8–1.2 mm galvanized casing panels
유효 폭	200–800 mm rectangular discharge width
최대 길이	Up to 1200 mm including optional attenuator or reheat section
강철 면면 두께	0.8–1.2 mm galvanized sheet-steel casing
코어 밀도	Approximately 7850 kg/m³ for the steel casing and damper components
열전도도 (Thermal Conductivity)	Approximately 45–60 W/(m·K) for the steel casing and damper components
표면 마무리	Clean mill-galvanized casing with optional white powder-coated exterior
접합 유형	Round beaded inlet collar and rectangular slip-and-drive discharge connection
사용자 정의	의도된 응용 프로그램 및 운영 환경에 따라 사용할 수 있습니다.

사용 가능한 옵션

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?

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