©Copyright 2008 Dwyer Instruments, Inc. Printed in U.S.A. 11/08 FR# R5-443674-00
MAINTENANCE
Upon final installation of the Series BAP Bin Aerator Pad, no
routine maintenance is required. A periodic check of system
calibration is recommended. The Series BAP is not field
serviceable and should be returned if repair is needed (field repair
should not be attempted and may void warranty). Be sure to
include a brief description of the problem plus any relevant
application notes. Contact customer service to receive a return
goods authorization number before shipping.
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057 e-mail: info@dwyer-inst.com
Bin Aerator Pad Selection
For best results, locate lower bin aerator pads as close to the
discharge outlet as possible. If material is held in the bin for long
periods and/or compacted in transport, we recommend bin
aerator pads be installed on 12˝ centers.
Generally, four rows of bin aerator pads on 12˝ or 15˝ centers are
recommended. On conical bins, these rows are spaced equally.
On pyramidal bins, rows are spaced equally on sloping sides or in
valleys if material tends to hang up in these valleys.
Air Supply
Air supply must be clean and dry. We recommend positive
displacement, low pressure blowers. Plant air can be used, but the
pressure must be reduced to 3-5 psi, and a filter or moisture trap
used on the low pressure side. The volume of air needed is a
limiting factor on the use of plant air.
Installation
Drill 7/16˝ holes through bin wall on predetermined centers (12˝ or
15˝ or customer’s preference). Insert special tank nipple through
hole and lock into place with locknut. Rubber gasket and spacer
washers are furnished.
If using BAP-K external mounting kit see bulletin PC-BAP-K.
Length of
Sloping
Bin Wall
1´ 8˝- 2´ 7˝
2´ 8˝- 3´ 7˝
3´ 8˝- 4´ 7˝
4´ 8˝- 5´ 7˝
5´ 8˝- 6´ 7˝
6´ 8˝- 7´ 7˝
7´ 8˝- 8´ 7˝
8´ 8˝- 9´ 7˝
9´ 8˝- 10´ 7˝
Number of Bin
Aerator Pads
Per Row
2
3
4
5
6
7
8
9
10
Length of
Sloping
Bin Wall
1´ 11˝- 3´ 1˝
3´ 2˝- 4´ 4˝
4´ 5˝- 5´ 7˝
5´ 8˝- 6´ 10˝
6´ 11˝- 8´ 1˝
8´ 2˝- 9´ 4˝
9´ 5˝- 10´ 7˝
10´ 8˝- 11´ 10˝
11´ 11˝- 13´ 1˝
Number of Bin
Aerator Pads
Per Row
2
3
4
5
6
7
8
9
10
Bin Aerator Pads
Aerators on 12˝ Centers
Bin Aerator Pads
Aerators on 15˝ Centers
Piping Size
3/4˝
1˝
1-1/4˝
Number of
Aerators
in a Row
1-5
6-9
10-12
Air Pressure,
psi (bar)
1 (0.07)
2 (0.14)
*3 (0.21)
4 (0.28)
5 (0.34)
Cubic Feet
Per Minute
(lpm)
4.2 (118.9)
5.7 (161.4)
6.5 (184.1)
7.1 (201.0)
7.6 (215.2)
Manifold Piping
Size Guide
Air Consumption Guide
Per Bin Aerator Pad
Figure 1: Typical Layouts
Figure 2: Series BAP Bin Aerator Pad Installed
CONICAL HOPPER PYRAMIDAL HOPPER
TYPICAL
INSTALLATION
ALTERNATE
INSTALLATION
3-3/4˝
7-1/2˝
SPACER
WASHERS
1/8˝ NPT X 2˝
TANK NIPPLE
LOCKNUT
RUBBER
GASKET
11/16˝
PC-BAP:TEMPLATE 11/14/08 3:49 PM Page 2
(20 pages)
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