STjh 1160 cubic-metre high-static-pressure FFU with twin EC fan cartridges and broad top grille

STJH-HIGH-STATIC-PRESSURE-FFU-1160-375PA

Fan Filter Unit 1160 m³/h 375 Pa High-Static-Pressure

A medium-flow high-pressure FFU balancing 1160 m³/h supply volume with 375 Pa external capability.

1160 m³/h airflow
375 Pa external pressure capability
Backward-curved EC fan

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Product Introduction

The 1160 m³/h configuration increases air delivery while retaining 375 Pa of available external differential pressure. A backward-curved EC fan provides the controllable drive needed for cleanroom systems containing ducts, prefilters or high-efficiency terminal stages. This model serves the middle duty between the 400 Pa pressure-priority unit and the larger 1555 m³/h square module.

Key Features

Balanced pressure and volume

The operating point raises airflow above the 770 m³/h model while keeping substantial reserve for system losses.

Backward-curved impeller

The EC fan architecture supports efficient controllable duty across a demanding clean-air network.

Resistance-ready supply

The module is suited to installations where a prefilter, duct connection or loaded final filter adds measurable pressure drop.

Technical Parameters

Rated Airflow	1160 m³/h
Maximum External Differential Pressure	375 Pa
External Dimensions	1132 x 532 x 440 mm
Fan Drive	Backward-curved EC fan
Final Filter Selection	High-efficiency filter selected for the cleanroom duty
Operating Strategy	Balanced airflow and pressure duty
Airflow Control	Variable EC fan speed
Installation	Ceiling, plenum or duct-connected clean-air module
Service Access	Configured to suit the ceiling or plenum layout
Customization	Available based on the intended application and operating environment.

Applications

Suitable for high-air-change production rooms, ducted mini-environments and clean ceilings carrying additional prefilter or terminal resistance. It is the practical middle point where both supply volume and pressure reserve remain important.

Solutions for Your Application

The system needs more airflow than the pressure-priority model can provide.Use the 1160 m³/h duty while retaining up to 375 Pa for the connected air path.

Filter loading changes the fan operating point over time.Use EC speed adjustment and verify airflow during scheduled filter-condition checks.

Available Options

Define the required final filter, connection arrangement, EC control signal and service direction. Confirm the actual duty from the combined pressure losses of filters, ducts and room terminals.

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