Table 2.2 Exhaust Pipe Length
1. 5 Hp pump model RA0100. Incorporated into horizontal tank mount system designs.
2. 5 Hp pump model RA0155. Incorporated into base mount system designs.
3. All pipe sizes are based on the following: copper pipe (Type L), 14.7 psia.
4. The minimum pipe size must be maintained for the total length of the exhaust pipe. Use next larger size pipe in
the event the minimum size is not available.
5. When determining the total pipe length, add all the straight lengths of pipe together in addition to the number
of elbows times the e
ff
ective pipe length for that pipe size. (See Table 2.3 and following example.)
Notes:
Laboratory
Units
Pump
Connection
System Exhaust Pipe Length (ft) - See Notes
25
50
75
100
150
200
250
300
350
400
450
500
SIMPLEX
1.5 Hp
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
2 Hp
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.5
1.5
1.5
3 Hp
1.25
1.25
1.25
1.25
1.25
1.25
1.5
1.5
1.5
1.5
1.5
2
2
5 Hp
1
1.25
1.25
1.25
1.25
1.5
1.5
2
2
2
2
2
2
2
5 Hp
2
2
2
2
2
2
2
2
2
2
2
3
3
3
7.5 Hp
2
2
2
2
2
2
2
3
3
3
3
3
3
10 Hp
2
2
2
2
3
3
3
3
3
3
3
3
3
15 Hp
3
3
3
3
3
3
3
3
3
4
4
4
4
20 Hp
3
3
3
3
3
3
3
3
4
4
4
4
4
25 Hp
3
3
3
3
3
3
4
4
4
4
4
4
4
DUPLEX
1.5 Hp
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.5
1.5
1.5
1.5
1.5
1.5
2 Hp
1.25
1.5
1.5
1.5
1.5
1.5
1.5
2
2
2
2
2
2
3 Hp
1.25
1.5
1.5
1.5
1.5
2
2
2
2
2
2
3
3
5 Hp
1
1.25
2
2
2
2
2
3
3
3
3
3
3
3
5 Hp
2
2
2
2
2
3
3
3
3
3
3
3
3
3
7.5 Hp
2
3
3
3
3
3
3
3
3
3
3
4
4
10 Hp
2
3
3
3
3
3
4
4
4
4
4
4
4
15 Hp
3
3
3
4
4
4
4
4
4
4
4
4
5
20 Hp
3
4
4
4
4
4
4
4
5
5
5
5
5
25 Hp
3
4
4
4
4
4
5
5
5
5
5
5
5
TRIPLEX
5 Hp
2
2
3
3
3
3
3
3
3
3
4
4
4
4
7.5 Hp
2
3
3
3
3
3
4
4
4
4
4
4
4
10 Hp
2
4
4
4
4
4
4
4
4
4
5
5
5
15 Hp
3
4
4
4
4
4
5
5
5
5
5
5
5
20 Hp
3
5
5
5
5
5
5
5
5
5
6
6
6
25 Hp
3
5
5
5
5
5
5
6
6
6
6
6
6
QUADRUPLEX
5 Hp
2
2
3
3
3
3
3
4
4
4
4
4
4
4
7.5 Hp
2
3
3
3
3
4
4
4
4
4
4
4
4
10 Hp
2
4
4
4
4
4
4
5
5
5
5
5
5
15 Hp
3
5
5
5
5
5
5
5
5
6
6
6
6
20 Hp
3
6
6
6
6
6
6
6
6
6
6
6
6
25 Hp
3
6
6
6
6
6
6
6
6
8
8
8
8
Lubricated Rotary Vane Laboratory Vacuum Systems
4107 9021 88.01
2-5