DeVillbiss Air Power Company SP-100-F Troubleshooting Guide download pdf (Page 9)

NOTE

Where a remote air intake is used, enlarge

the side of the air intake piping by one pipe

size for each t0 feet of length.

Stationary outfits must be bolted or lagged to the floor

to prevent movement. When lagging down, leave a mini-

mum of 1/8 inch between the bolt and support feet.

The use of vibration pads at each support foot is re-

quired to eliminate the possibility of tank rupture.

The flywheel sideof the outfitshouldbe placed toward

the wall and protected with a totally enclosed belt

guard. In no case should the flywheel be closer than

12 to 18 inches from the wall or other obstruction that

will interferewith the flow of air through the fan blade

flywheel. See Table 1for recommended distances. The

area should allow space on all sides for air circulation

and for ease of normal maintenance.

The compressor outfit must not be op-

erated in any confined area where

heat from the outfit can not readily es-

cape. Damage to the outfit may result.

The compressor crankcase and head are designed

with fins which allow for proper cooling. Clean or blow

offthe fins and any other parts of the compressor out-

fit that collect dust or dirt. A clean compressor runs

cooler and provides longer service. Do not place rags,

containers, or other matedal in or against the belt guard

which will obstruct ventilation openings necessary for

proper compressor operating temperatures.

Pipe thread sealant must be used onall threads, and

alljoints are to be made up tight,since smallleaks in

the pipingsystemare the largestsinglecause of high

operatingcosts.

All piping should be slopedto an accessible drain

pointand alloutlets should be takenfrom the top of

the main distributionair line so thatmoisturecannot

enter the outlet.

The main distribution air line should notbe smaller

than the compressorair dischargevalve outlet.A

smaller linewill restrictthe flow of air. For longair

lines,refer to Table 2, Pipe Sizes for Compressed

Air Lines,for recommended pipesizes. It is recom-

mended that a flexible couplingbe installedbetween

the air dischargevalve outlet and mainairdistribu-

tion lineto allowfor vibration.

To remove entrained dirt, oil andwater, installsepara-

tor in the main distribution line, a sufficientdistance

from the compressor.This will allowthe air to cool to

room temperature before passing through the separa-

tor.

Additional separatorsorfilter may be useddepend-

ing on the application.

NOTE

For underground installation, bury air

lines below the frost line and avoid

pockets where condensation can

gather and freeze. Apply pressure be-

fore underground lines are covered

to make sure all pipe joints are free

from leaks.

AIR LINE PIPING

(STATIONARY COMPRESSOR OUTFITS)

Table 2 Pipe Sizes for Compressed Air Lines

The use of plastic pipe, soldered joint,

or failure to insure system capability

of flex joints and flexible hose can

result in mechanical failure, property

damage, and serious injury.

Plastic or PVC pipe is not designed for

usewith compressed air. Regardless

of its indicated pressure rating, plastic

pipe can burst from air pressure. Use

only metal pipe for air distribution lines.

A typical compressedairdistribution systemasshown

in Figu re 4, page 10 should be of sufficientpipe size

to keep the pressure drop between the supply and

point of use to a minimum. All pipes and fittings used

must be certifiedsafefor the pressures involved.

AIR LENGTH OF PIPE LINES IN FEET

cfm 25 50 75 100 150 200 250 300

1-5 1/2 1/2 1/2 1/2 1/2 1/2 1/2 142

10 1/2 1/2 1/2 1/2 1/2 1/2 1/2 142

15 1/2 3/4 3/4 3/4 3/4 3/4 3/4 3/4

20 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4

25 3/4 3/4 3/4 3/4 1 1 1 1

30 3/4 3/4 3/4 1 1 1 1 1

35 3/4 3/4 1 1 1 1 1 1

40 3/4 1 1 1 1 1 1

50 1 1 1 1 1 1 1 1

60-70 1 1 1 1 1-1A 1-1/ 1-1A 1-_A

80-100 1-IA 1-I/_ I-I,_I-1/_I-Ih 1-Y.,1-V21-I/2

Pipe sizes are in inches

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DeVillbiss Air Power Company SP-100-F Troubleshooting Guide Page 9

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