Plate‑type Smoke Exhaust Outlet

1. Overview of Plate‑type Smoke Exhaust Outlet

1.1

Plate‑type smoke exhaust outlet is fire‑safety smoke‑vent component, mainly installed on ceiling or upper side‑wall of corridors, windowless rooms and smoke‑prevention antechambers. Adopting single flip‑plate structure, normally closed under normal condition. Upon fire emergency, it opens automatically by receiving DC24V fire‑control signal, and can also be manually opened by remote pull‑cable to extract high‑temperature smoke. It outputs position signal after opening for interlock with smoke exhaust fan. Standard version has no built‑in 280 ℃ thermal closing mechanism, optional 280 ℃ thermal fusible link is available. Manual reset is required after fire emergency. Full‑open flip‑plate provides large effective airflow area with low air resistance and good sealing performance. Mainly rectangular shape, face panel can be powder‑coated.

‑ Standard Plate‑type Smoke Exhaust Outlet: DC24V electric opening, remote manual opening, manual reset, without 280 ℃ thermal fuse, for ceiling or wall‑mounted smoke‑exhaust terminal. ‑ Signal‑feedback Plate‑type Smoke Exhaust Outlet: Outputs electric opening signal to fire control panel for smoke‑fan interlock. ‑ Thermal‑fuse Plate‑type Smoke Exhaust Outlet: Optional 280 ℃ thermal fusible link for auto shut‑off under high‑temperature condition for smoke & fire isolation.

1.2 Product Classification

‑ By structural shape: Rectangular type. ‑ By functional configuration: ‑ Standard Type: DC24V electric opening, remote manual opening, manual reset. ‑ Signal‑feedback Type: Electric opening with position feedback signal for fan interlock. ‑ Thermal‑fuse Type: Equipped with 280 ℃ thermal fusible link for high‑temperature auto‑closure.

2. Operating Conditions for Plate‑type Smoke Exhaust Outlet

Operating temperature: ‑20 ℃ ~ +80 ℃; thermal‑fuse version short‑term resistant to 280 ℃ high‑temperature flue gas. Relative humidity: less than 90%. Medium condition: High‑temperature fire flue gas.

Power supply: DC24V.

3. Plate‑type Smoke Exhaust Outlet Configuration

3.1 Standard Components

‑ Damper body ‑ Flip‑plate blade ‑ Actuator ‑ Decorative face panel ‑ Connecting flange

3.2 Optional Accessories (please specify requirements upon order)

‑ Position feedback device ‑ Remote‑control pull‑cable actuator ‑ 280 ℃ thermal fusible link ‑ Sealing gasket

4. Manufacturing Process of Plate‑type Smoke Exhaust Outlet

4.1

Damper body, flip‑plate and face panel are fabricated from galvanized steel sheet with fire‑compliant plate thickness. Sealing gaskets fitted on flip‑plate for tight closure. Rotating shafts adopt wear‑resistant bushings for smooth flip movement. Actuator and optional 280 ℃ fusible link are calibrated per fire‑protection standards for reliable operation. Face panel supports powder‑coated finish.

4.2

Damper flange is integrally bent to form flat mating surface for easy smoke‑exhaust duct connection.