Page 170 - Practical Machinery Management for Process Plants Major Process Equipment Maintenance and Repair

152 Major Process Equipment Maintenance and Repair
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DWDl FANS

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fk$ -K;17'FAN+
HORIZONTAL
HORIZONTAL
RIQHT INTAKE
TOP INTAKE
BOrrOM INTAKE
LEFT INTAKE
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BOTTOM INTAKE HORIZONTAL TOP INTAKE HORIZONTAL
LEFT INTAKE RIOHT INTAKE
Figure 4-7. Standard inlet box positions. (Courtesy CWCP Ltd.)

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SIDE LINER At

Flgure 4-8. Side and scroll liners. (Courtesy CBEP LM.)

Wheels
Heavy duty fan wheels are shipped as a single, assembled unit with all
surfaces either painted or coated with rust preventive. Each wheel has
been both statically and dynamically balanced. Standard wheel designs
and direction of rotation are shown in Figure 4-9,
When specified for abrasive conditions, wear strips constructed of at
least 1/4 in. floor plate are shipped as shown in Figure 4-10.