Construction Features

Drive Side View of Belt Driven Tubeaxial Fan

Die cast aluminum blades and hubs.

Continuously-welded, heavy-gauge, corrosion resistant, TGIC polyester powder coated steel housing.

Heavy-gauge steel motor and bearing supports provide maximum strength with minimal resistance to airflow

Flanged housings with prepunched mounting holes can easily be connected to ductwork.

Dynamically balanced impellers for quiet, limited vibration operation.

Designed for continuous-duty.

Available with a wide variety of ODP, TEFC and explosion proof ball bearing motors.

Extended lube lines are standard on Tubeaxial Commercial Fan.

Externally mounted conduit box standard on Tubeaxial Commercial Fan.

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Horizontal Construction

Horizontal Base Mounted (HBM) — Support legs are provided at each end of the fan for floor mounting.
Horizontal Ceiling Hung (HCH) — For duct mounted fans, four suspension clips are welded to the fan casing to allow ceiling suspension using rod hangers.
Horizontal (HOR) — For mounting configurations where support legs and suspension clips are not required.

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HCH

Horizontal Ceiling Hung

HBM

Horizontal Base Mounted

Vertical Construction

Floor or Ceiling Mounted (VUI/VUO/VDI/VDO) — Four vertical brackets are welded to either end of the fan housing. Bracket location is determined by airflow direction and support details (see below).
Vertical (VUN/VDN) — For mounting configurations where support brackets are not required.

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VUI

Vertical Discharge Up,
Floor Mount Support
Brackets On Inlet

VUO

Vertical Discharge Up,
Ceiling Hung Support
Brackets On Outlet

VUN

Vertical Up
No Brackets

VDI

Vertical Discharge Down,
Ceiling Hung Support
Brackets On Inlet

VDO

Vertical Discharge Down, Floor
Mount Support
Brackets On Outlet

VDN

Vertical Down
No Brackets

Options/Accessories

Motor Cover

A weatherproof motor cover is available on belt driven models to protect the motor and drive components. Motor covers also serve as an OSHA guard to protect personnel from rotating parts and can easily be removed for inspection. (Model BSTAB fans only.)

Extended Lube Lines

Allow for easy lubrication of bearings on belt driven units without disassembly by extending polyethylene lines from fan bearings to exterior of base.

Shaft Seal

Shaft seal consists of a rubbing ring at the impeller end of the inner cylinder. A shaft seal is recommended when the fan is exposed to wet, corrosive or dirty contaminants. The shaft seal does not make the fan gas tight. (Model BSTAB fans only.)

Mounting Brackets

Mounted to fan housing. Location varies with discharge orientation and mounting option.

Access Door

A bolted access door allows for inspection and maintenance of internal fan components.

Hanging Spring Isolators

Spring type isolators are available to damper vibration and noise transmission in ceiling suspended installations. Also available in rubber-in-shear construction.

Material Specifications

FAN SIZE	HOUSING (GAUGE)	IMPELLERS (GAUGES)	SHAFT SIZE (IN.)	APPROX. SHIP WT. (LB)
14	14	DIE CAST ALUM.	3/4	40
16	14	DIE CAST ALUM.	3/4	67
18	14	DIE CAST ALUM.	3/4	75
21	14	DIE CAST ALUM.	3/4	104
24	14	DIE CAST ALUM.	1	118
30	12	DIE CAST ALUM.	1	183
36	12	DIE CAST ALUM.	13/16	288
42	12	DIE CAST ALUM.	17/16	375
48	12	DIE CAST ALUM.	17/16	664
54	12	DIE CAST ALUM.	17/16	803

Mounting Brackets

FAN SIZE	A	B	C	D
14	15.35	16.60	21.34	10.93
16	16.68	17.93	21.34	11.59
18	18.18	19.43	21.34	12.34
21	20.30	21.55	23.03	13.40
24	22.42	23.67	23.03	14.46
30	26.75	28.00	28.34	18.63
36	31.13	32.38	29.28	22.81
42	35.55	36.80	33.28	25.03
48	39.70	40.95	37.28	28.60
54	43.94	45.20	42.28	30.72
60	48.18	49.43	42.28	34.34