Automatic air valves, with double orifice and integrated valve, flanged PN 16, 25
- Air valves
Article: 706-712
Flanges: UNI EN 1092-2 PN 16-25
Installation: at the high part of pipelines
APPLICATIONS • Aqueducts • Irrigation plants
– Fig. 706: flanges drilling PN 16
– Fig 712: Flanges drilling PN 25
Epoxy paiting suitable for drinking water applications.
The double orifice automatic air valves with integrated valve are used for applications related to troubles with air in the pipelines. The double air valves with integrated valve working as isolating valve allow maintenance or replacement of balls in line.
The minimum pressure on seat is 0,3 bar.
The double ball air valves have three functions:
- Discharge large amount of air during filling operations
- Discharge small amount of air during working operations
- Let air in during piping emptying operations
Materials
body
ductile iron GGG40/50, EN-GJS-400/500
cover
ductile iron GGG40/50, EN-GJS-400/500
floating ball
ABS / NBR / st.st. AISI 304
gasket
EPDM
painting
epoxy
| DN | L mm. | H mm. | D mm. | Weight kg. |
|---|---|---|---|---|
| 50 | 290 | 415 | 165 | 22 |
| 65 | 290 | 415 | 185 | 30 |
| 80 | 290 | 425 | 200 | 30 |
| 100 | 530 | 480 | 220 | 52 |
| 150 | 656 | 515 | 285 | 109 |
| 200 | 790 | 615 | 340 | 196 |
DN
Nominal pressure
Test pressure MPA
Max working pressure Mpa
mm
mm
Bar
Body
Seat
50-200
16
2,4
1,76
1,6
50-200
25
4,0
2,75
2,5
DN of pipeline
DN of air valve
< 200 mm
DN 50
200 mm - 250 mm
DN 80
300 mm - 500 mm
DN 100
600 mm - 900 mm
DN 150
1000 mm - 1200 mm
DN 200
> 1200 mm
DN 250 o 2 x DN 200