STjh 770 cubic-metre high-static-pressure FFU with deep narrow plenum and twin duct connections

STJH-HIGH-STATIC-PRESSURE-FFU-770-400PA

Fan Filter Unit 770 m³/h 400 Pa High-Static-Pressure

A low-flow, high-pressure FFU operating point for clean-air systems with substantial external resistance.

770 m³/h airflow duty
Up to 400 Pa external pressure
1132 x 532 x 440 mm cabinet

Введение продукции

This high-performance EC fan filter unit is configured around a 770 m³/h duty and the highest cited external differential pressure in the accepted series: 400 Pa. The 1132 x 532 x 440 mm cabinet is intended for systems where ductwork, prefiltration or dense terminal filtration creates more resistance than a standard ceiling FFU can overcome. The lower airflow point preserves pressure reserve, distinguishing it from the higher-volume models in the group.

Основные характеристики

Maximum pressure reserve

The 400 Pa duty is selected for restrictive air paths rather than for maximum free-air volume.

High-performance EC drive

An EC fan supports controllable operation as system resistance changes with filter loading.

Selectable final filtration

H14, U15 or U16 filter options allow the terminal stage to be matched to the clean-air requirement.

Технические параметры

Rated Airflow	770 m³/h
Maximum External Differential Pressure	400 Pa
External Dimensions	1132 x 532 x 440 mm
Fan Drive	High-performance EC fan
Final Filter Options	H14, U15 or U16
Operating Strategy	Pressure-priority duty for high-resistance systems
Управление воздушным потоком	EC speed adjustment to the commissioned system point
Installation	Ceiling, plenum or duct-connected clean-air module
Service Access	Access arrangement selected for the installed housing orientation
Customization	Доступно в зависимости от предполагаемого применения и операционной среды.

Applications

Intended for duct-connected cleanrooms, terminal systems with prefilters, high-grade final filters and ceiling networks with substantial pressure loss. The 770 m³/h point should be used where maintaining pressure reserve is more important than maximizing supply volume.

Solutions for Your Application

A conventional FFU loses airflow when connected to a restrictive duct or dense filter stage.Select the 400 Pa operating point and commission the EC fan against the measured resistance of the complete air path.

Choosing a larger airflow model could reduce available pressure where it is needed most.Prioritize this 770 m³/h configuration when pressure margin is the governing design requirement.

Доступные варианты

Specify H14, U15 or U16 filtration, the duct or plenum connection, control interface and service orientation. Final fan speed must be set from measured system resistance rather than cabinet rating alone.

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