17 
Commercial sizes of pneumatic tajiks 
Diame- 
ter. 
Length. 
Weight. 
Capacity. 
D ^ Length. 
Weight. 
1 
Capacity. 
Inches. 
Feet. 
Pounds. 
Gallons-. 
Inches. 
Feet. 
Pounds. 
Gallons. 
24 
6 
445 
140 
42 
10 
1.650 
720 
24 
8 
560 
195 
42 
12 
1,900 
865 
24 
10 
675 
245 
42 
14 
2,200 
1.000 
30 
6 
560 
220 
42 16 
2.400 
1,150 
30 
8 
700 
295 
48 10 
2, 066 
1.000 
30 
to 
S70 
365 
48 12 
2.320 
1,130 
30 
12 
900 
440 
48 14 
2.610 
1,300 
36 
6 
750 
315 
48 16 
2,900 
1,500 
36 
8 
900 
420 
48 IS 
3,600 
1,700 
36 
10 
1.050 
525 
4S 20 
3,950 
1,880 
36 
12 
1,200 
630 
48 24 
4,650 
2,260 
42 
5 
1,450 
0,0 
60 20 
5,900 
2.940 
WASTS COCf 
Fig. 14. — Pneumatic tank supply system with tank in basement supplied by hand force pump. 
Each, tank is equipped with a pressure gauge which will show the 
internal pressure at any time. If water is pumped into the tank 
until the pressure gauge registers 25 pounds, water can be forced 
about 60 feet above the tank. If a discharge cock 20 feet above the 
tank is opened, water is discharged until the pressure falls to 8.6 
19611°— 14 3 
