STjh 1455 CFM centrifugal exhaust fan unit with an elongated square casing and aluminum impeller on white.

STJH-CENTRIFUGAL-CLEANROOM-EXHAUST-FAN-1455CFM

Centrifugal Cleanroom Exhaust-Air Fan Unit 1455 CFM

A medium square inline fan with an 11 inch aluminum impeller, 1/4 hp motor and published 831-1455 CFM range.

831-1455 CFM performance
11 in aluminum impeller
1/4 hp direct-drive motor

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Product Introduction

The 1455 CFM model is a defined medium-duty inline fan rather than a scaled label change. Its 17 x 17 x 21 inch casing contains an 11 inch aluminum impeller driven by a 1/4 hp motor, giving it a distinct size and service range for general cleanroom exhaust or return air.

Key Features

Defined medium hardware

The documented wheel, motor and enclosure dimensions simplify replacement and duct-layout coordination.

Aluminum rotating assembly

The 11 inch impeller combines low rotating mass with corrosion resistance for general air service.

Inline service access

The square enclosure keeps the motor and wheel accessible without adding an external scroll casing.

Technical Parameters

Airflow Range	831-1455 CFM
Motor Power	1/4 hp
Impeller Diameter	11 in
Impeller Material	Aluminum
Unit Dimensions	17 x 17 x 21 in
Drive Type	Direct
Casing Shape	Square inline
Mounting	Horizontal or vertical duct
Service	General exhaust, return or makeup air
Customization	Motor voltage, coatings, controls and accessories can be selected for the intended application and operating environment.

Applications

Medium cleanroom return systems, general exhaust headers, makeup-air transfer and non-corrosive process support ventilation.

Solutions for Your Application

An undersized local fan cannot overcome the medium branch resistance at peak airflow.Select the operating point within the 831-1455 CFM range and verify available pressure against the duct calculation.

Maintenance staff need known dimensions for a planned fan replacement.Use the 17 x 17 x 21 inch envelope and 11 inch wheel specification to coordinate the opening and service clearance.

Available Options

Motor voltage, speed control, factory disconnect, backdraft damper, isolators and corrosion-resistant finish can be selected.

Planning a Centrifugal Cleanroom Exhaust-Air Fan Unit 1455 CFM specification?

Send us your dimensions, installation conditions, performance targets and required surface finish.

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