Hawle Air Release Valves, No. 9876 and No. 9842
No. 9876 Design features:
Automatic, dynamic air release valve
PE shield for UV protection
The internal thread inlet is reinforced with a stainless steel ring
Connection variants: Internal thread or flange
Insect protective grid (2" valve)
Installation: upright, preferably at the highest point in the pipeline together with isolating valves
Air valve for releasing air only: on request (minimum pressure of 0,3 bar needed)
No. 9842 Design features
Automatic 3-way air release valve with cylindrical floats
Ventilation outlet in nominal size (large opening cross-section according to the flange size)
Flange pursuant to EN 1092-2 (DN 50 can also be shipped with threaded connection 2")
Efficient, high performance ventilation protects pipeline from vacuum related damages
High velocity air discharge prevents premature closure, thus safeguarding optimum ventilation during filling process of pipe lines or containers
2-level ventilation system provides effective protection against pressure shocks during high ventilation speeds through a small opening
Continuously reliable ventilation of air inlets under normal operating conditions
Compact construction, low volume and weight
Robust and reliable technology
Hawle Air Release Valves Range
Automatic, dynamic air release valve
PE shield for UV protection
The internal thread inlet is reinforced with a stainless steel ring
Connection variants: Internal thread or flange
Insect protective grid (2" valve)
Installation: upright, preferably at the highest point in the pipeline together with isolating valves
Air valve for releasing air only: on request (minimum pressure of 0,3 bar needed)
| DN |
MOP (PN) |
Working pressure bar |
Size of the opening |
Ø A |
Ø A1 |
H |
H1 |
Weight |
| 2" |
6 |
0,1 - 6 |
900/2 mm2 |
160 |
175 |
305 |
320 |
2,90 |
| 16 |
1 - 16 |
3,40 |
Automatic 3-way air release valve with cylindrical floats
Ventilation outlet in nominal size (large opening cross-section according to the flange size)
Flange pursuant to EN 1092-2 (DN 50 can also be shipped with threaded connection 2")
Efficient, high performance ventilation protects pipeline from vacuum related damages
High velocity air discharge prevents premature closure, thus safeguarding optimum ventilation during filling process of pipe lines or containers
2-level ventilation system provides effective protection against pressure shocks during high ventilation speeds through a small opening
Continuously reliable ventilation of air inlets under normal operating conditions
Compact construction, low volume and weight
Robust and reliable technology
| DN |
MOP (PN) |
Ø D |
Ø K |
C |
Bolts |
Ø B |
H |
Weight |
| Quantity |
Ø d2 |
| 50 |
10/16 |
165 |
125 |
19 |
4 |
19 |
200 |
355 |
20 |
| 80 |
200 |
160 |
19 |
8 |
19 |
240 |
420 |
26 |
| 100 |
220 |
180 |
19 |
8 |
19 |
255 |
420 |
28 |
| 150 |
285 |
240 |
19 |
8 |
23 |
365 |
580 |
90 |
| 200 |
10 |
340 |
295 |
20 |
8 |
23 |
410 |
630 |
98 |
| 200 |
16 |
340 |
295 |
20 |
12 |
23 |
410 |
630 |
98 |
| 250 |
10 |
405 |
355 |
22 |
12 |
23 |
540 |
820 |
160 |
| 250 |
16 |
405 |
355 |
22 |
12 |
28 |
540 |
820 |
160 |
| 300 |
16 |
460 |
410 |
24,5 |
12 |
28 |
650 |
927 |
180 |
| DN |
MOP (PN) |
Ø D |
Ø K |
C |
Bolts |
Ø B |
H |
Weight |
| Quantity |
Ø d2 |
| 50 |
25 |
165 |
125 |
19 |
4 |
19 |
200 |
355 |
22 |
| 80 |
200 |
160 |
19 |
8 |
19 |
240 |
420 |
28 |
| 100 |
235 |
190 |
19 |
8 |
23 |
255 |
420 |
30 |
| 150 |
300 |
250 |
20 |
8 |
28 |
365 |
580 |
95 |
| DN |
MOP (PN) |
Ø D |
Ø K |
C |
Bolts |
Ø B |
H |
Weight |
| Quantity |
Ø d2 |
| 100 |
40 |
235 |
190 |
19 |
8 |
23 |
255 |
420 |
30 |
