Tapco Elevator Buckets and Bolts GoodyearBelting.com 866-711-4673

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SPOUTING CAPACITY TABLE
Approximate Bushels Per Hour, Unlined Downspouting
ROUND SPOUTING SQUARE SPOUTING
HEAD SHAFT DIAMETER
PER HORSEPOWER RATING
Estimated on 65 bushels per hour per square inch of spout. 45˚ fall of free flowing material,
with a minimum number of elbows.
1.244 cu. ft. = 1 bushel 1 bushel = 1 cu. ft.
.8038
NOTE: Above suggested data should serve as a guideline, Tapco Inc. assumes no liability from their use.
SIZE
DIA.
SQUARE
INCHES BPH
6”
7”
8”
9”
10”
11”
12”
13”
14”
15”
16”
17”
18”
19”
20”
21”
22”
23”
24”
28.27
38.49
50.27
63.62
78.54
95.03
113.1
132.7
153.9
176.7
201.1
226.9
254.5
283.5
314.2
346.4
380.1
415.5
452.4
1,837
2,501
3,267
4,135
5,105
6,177
7,351
8,625
10,003
11,485
13,071
14,748
16,542
18,427
20,423
22,516
24,706
27,007
29,406
SIZE
DIA.
SQUARE
INCHES BPH
6”
7”
8”
9”
10”
11”
12”
13”
14”
15”
16”
17”
18”
19”
20”
21”
22”
23”
24”
36
49
64
81
100
121
144
169
196
225
256
289
324
361
400
441
484
529
576
2,340
3,185
4,160
5,265
6,500
7,865
9,360
10,985
12,740
14,625
16,640
18,785
21,060
23,465
26,000
28,665
31,460
34,385
37,440
1-7/16”
1-15/16”
2-3/16”
2-7/16”
2-15/16”
3-3/16”
3-7/16”
1 - 2
3
5
7-1/2 - 10
15
20
25 - 30
HORSE-
POWER
SHAFT
DIA.
HORSE-
POWER
SHAFT
DIA.
40
50 - 60
75 - 100
125
150
200
250
3-15/16”
4-7/16”
4-15/16”
5-7/16”
5-15/16”
7”
7”