AIR RELEASE VALVE
| No. |
part name |
material |
standards |
|
No. |
part name |
material |
standards |
|
| 1 |
body |
ductile iron |
EN1563-GJS-450 |
bs2789 |
12 |
O-ring |
EPDM |
EN681-1 |
BS2494 |
| 2 |
float guide |
ABS |
|
|
13 |
side body |
ductile iron |
|
|
| 3 |
float |
ABS |
|
|
14 |
CAP |
Nylon/brass |
|
|
| 4 |
support |
ABS |
|
|
15 |
gasket |
EPDM |
EN681-1 |
BS2494 |
| 5 |
Seat ring |
EPDM |
EN681-1 |
BS2494 |
16 |
bracket |
Nylon |
|
|
| 6 |
seat support |
ABS |
|
|
17 |
Adjusting screw |
stainless steel |
EN ISO15481 |
BS4174 |
| 7 |
COVER |
ductile iron |
EN1563-GJS-450 |
|
18 |
seat |
EPDM |
EN681-1 |
BS2494 |
| 8 |
washer |
carbon steel |
EN ISO7089 |
BS4320 |
19 |
Hinge pin |
stainless steel |
EN ISO1234 |
BS1574 |
| 9 |
Nut |
carbon steel |
EN ISO4032 |
BS3692 |
20 |
Side float |
ABS |
|
|
Double Orifice Air Release Valve
1. Desgin according to EN1074-4:2000
2. Flange according to EN 1092-2:1997
3. Test according to EN 12266-1:2012, working pressure:16kg/cm3
shell test pressure: 25kg/cm
3 seat test pressure: 18kg/cm3
4. Media: water, neutral oil
5. External and intenal coating:100% fusion-bonded epoxy
6. SS304, 316 bolts/nuts/washers are available on request


Demension DN40, DN50, DN40-65, DN65, DN80, DN100, DN150, DN200, DN250, DN300
Material for main parts
Hebei Yongqian Trading Co.,ltd is specialized in air release valve designing & manufacturing. We are the manufacturer of air release valve in China, all of air valve are for export only, our air valve are sold quite well all over the world.