These water operated Jet Pumps are used for evacuating chambers or moving gases and vapours.
To maintain the water seal, the discharge piping must be arranged with a bend or other slight restriction to ensure that the motive water completely fills it.
|
Size No. |
Size of motive water pipe B.S.P. |
Size of suction and discharge pipes B.S.P. |
Motive Water consumption gallons/minute at 40 psi |
Using Motive Water at 40 psi |
|
|
Cu. ft. of closed space evacuated to 20” HG. in 1 minute |
Cu. ft. of pumped volume to be primed to 20” HG. in 1 minute |
||||
|
4WE |
½ |
¾ |
4 |
0.75 |
0.35 |
|
6WE |
½ |
1 |
6 |
1.25 |
0.6 |
|
8WE |
¾ |
1¼ |
10 |
2.0 |
0.9 |
|
10WE |
1 |
1½ |
15 |
3.0 |
1.3 |
|
12WE |
1 |
2 |
22 |
4.5 |
2.0 |
|
16WE |
2 |
3 |
87 |
18.0 |
8.0 |