Ejectors transfer the fluids required for ion-exchange filter regeneration and/or solution dilution by drawing concentrated acid or alkali solutions (HCl; NaOH; NaCl; FeCl3) from dosing and measuring tanks using motive water, then discharging the diluted solution.
Fasteners (bolts and nuts) are made of carbon steel.
Designation example: Ej NaOH 4 (Ejector – aspirated solution type – flow rate): ejector for NaOH solution with a flow rate of 4 m3/h.
Installation can be vertical or horizontal.
Technical characteristics:
| Characteristic | Unit | Value | ||
| Working fluid | - motive | - | water | |
| - suction | - | HCl
NaOH NaCl FeCl3 |
36%
36% 24% saturated |
|
| - discharge | - | HCl
NaOH NaCl FeCl3 |
2 ÷ 10 %
2 ÷ 6% 2 ÷ 10 % max 50% of suction flow Q |
|
| Operating pressure | - motive | bar | 4,5 ÷ 6 | |
| - suction | bar | > 0,2 | ||
| - discharge | bar | 1,5 ÷ 2,5 | ||
| Operating temperature | °C | 5 ÷ 55 / 80 | ||
Ejectors are manufactured in 16 sizes according to discharge flow rate.
| Flow rate | Construction dimensions | Connection flange dimensions Pn10 | ||||||||||||
| Q | L
[mm] |
l
[mm] |
X
[mm] |
H
[mm] |
Motive DN = discharge DN
ØDg / ng x Ødg |
Suction DN
ØDa / ng x Ødg |
||||||||
| m3/h | HCl / FeCl3 | NaOH | NaCl | HCl / FeCl3 | NaOH | NaCl | HCl / FeCl3 | NaOH | NaCl | HCl / FeCl3 | NaOH | NaCl | ||
| 0,25 | 161 | 60 | 16 | 95 | DN 25
Ø85 / 4 x Ø14 |
DN 20
Ø75 / 4 x Ø14 |
||||||||
| 0,4 | 160 | |||||||||||||
| 0,6 | 187 | 188 | 60 | 65 | 105 | DN 32
Ø100 / 4 x Ø18 |
DN 20
Ø75 / 4 x Ø14 |
DN 25
Ø85 / 4 x Ø14 |
||||||
| 1 | 184 | 186 | ||||||||||||
| 1,6 | 246 | 255 | 254 | 70 | 75 | 110 | DN 40
Ø110 / 4 x Ø18 |
DN 25
Ø85 / 4 x Ø14 |
DN 32
Ø100 / 4 x Ø18 |
|||||
| 2,5 | 243 | 256 | 252 | |||||||||||
| 4 | 308 | 321 | 80 | 85 | 120 | DN 50
Ø125 / 4 x Ø18 |
DN 32
Ø100 / 4 x Ø18 |
DN 40
Ø110 / 4 x Ø18 |
||||||
| 6 | 304 | 320 | ||||||||||||
| 8 | 396 | 416 | 412 | 90 | 95 | 130 | DN 65
Ø145 / 4 x Ø18 |
DN 40
Ø110 / 4 x Ø18 |
DN 50
Ø125 / 4 x Ø18 |
|||||
| 10 | 394 | 414 | 410 | |||||||||||
| 12 | 474 | 500 | 490 | 100 | 105 | 140 | DN 80
Ø160 / 8 x Ø18 |
DN 50
Ø125 / 4 x Ø18 |
DN 65
Ø145 / 4 x Ø18 |
|||||
| 16 | 468 | 495 | 489 | |||||||||||
| 20 | 464 | 492 | 481 | |||||||||||
| 25 | 460 | 491 | 476 | |||||||||||
| 32 | 572 | 610 | 586 | 120 | 130 | 19 | 150 | DN 100
Ø180 / 8 x Ø18 |
DN 65
Ø145 / 4 x Ø18 |
DN 80
Ø160 / 8 x Ø18 |
||||
The ejector consists of:
- Ejector body containing the converging nozzle, cylindrical mixing chamber and diffuser, with flanged connections (1);
- Ejector nozzle (2);
- Adjustment and sealing gaskets (3).
Materials used for components (1, 2, 3):
- High-density polypropylene (PPH) for acid solutions (1 + 2)
- PPH or PVC for alkali solutions (1 + 2)
- Rubber (3)
6-450x451.jpg)
4-450x451.jpg)
