Description
Combination Air Release Valve which is self-operating float type and can be fitted to any peak on a pipeline, capable of fulfilling the venting requirement of the pipeline and release any air or gas under pressure accumulated in the pipe system automatically.
Triple Functions & Anti-Shock Design
▪ discharge large air flow from water pipeline
▪ admit large air flow into water pipeline
▪ purge entrapped air from pipeline under pressure
Main Design Features
▪ Stainless steel float, SS304/SS316
▪ Smooth cage outside of the float,
▪ Keep float moving in specified guide rail.
▪ Inside&outside fusion bond epoxy coating
▪ WRAS paint and rubber upon request
▪ Optional outlet for submerged applications
▪ Hydrostatic tests to EN-12266-1, class A.
▪ Designed to EN-1074/4 and AWWA C-512
▪ Flanges to EN-1092/2 or ANSI-150
▪ Anti water hammer system
▪ Anti-insects screen (SS304)
▪ Full bore body design
▪ 100% water tightness
▪ low pressure sealing at 0.2bar
▪ water distribution system
▪ main transmission pipeline
▪ irrigation system
▪ fire fighting
Technical Details
|
No. |
Component | Standard Material | Optional upon request |
|
1 |
Body | ductile cast iron GJS 500-7 | |
|
2 |
Bushing | stainless steel AISI 304 | stainless steel AISI 316 |
|
3 |
Floating Ball | stainless steel AISI 304 | stainless steel AISI 316 |
|
4 |
Disc | stainless steel AISI 304 | stainless steel AISI 316 |
|
5 |
Sealing Ring | NBR | EPDM |
|
6 |
O-Ring | NBR | EPDM |
|
7 |
Seat | ductile cast iron GJS 500-7 | |
|
8 |
Screen | stainless steel AISI 304 | stainless steel AISI 316 |
|
9 |
Cap | ductile cast iron GJS 500-7 | |
|
10 |
Stud | stainless steel AISI 304 | stainless steel AISI 316 |
|
11 |
Bolt | stainless steel AISI 304 | stainless steel AISI 316 |
|
12 |
Washer | stainless steel AISI 304 | stainless steel AISI 316 |
|
13 |
Guide shaft | CuZn39Pb1 Brass | stainless steel AISI 304/316 |
|
14 |
Shaft Nut | stainless steel AISI 304 | stainless steel AISI 316 |
|
15 |
O-Ring | NBR | EPDM |
|
16 |
Lock Nut | CuZn39Pb1 Brass | |
|
17 |
Sealing plug | Silcon rubber | |
|
18 |
Sealing sleeve | CuZn39Pb1 Brass | |
|
19 |
Screw | stainless steel AISI 304 | stainless steel AISI 316 |
|
20 |
Drain valve | stainless steel AISI 304 | stainless steel AISI 316 |
Dimensions
|
SIZE |
Height |
FlangetoEN1092-2/BS4504 (mm) |
||||||||
|
EndFlangePN10/16 |
EndFlangePN25 |
|||||||||
|
DN |
inch |
H |
D |
K |
n-d |
B |
D |
K |
n-d |
B |
|
DN50 |
2” |
305 |
165 |
125 |
4-φ19 |
19 |
165 |
125 |
4-φ19 |
19 |
|
DN65 |
2.5” |
305 |
185 |
145 |
4-φ19 |
19 |
185 |
145 |
8-φ19 |
19 |
|
DN80 |
3” |
330 |
200 |
160 |
8-φ19 |
19 |
200 |
160 |
8-φ19 |
19 |
|
DN100 |
4” |
370 |
220 |
180 |
8-φ19 |
19 |
235 |
190 |
8-φ23 |
19 |
|
DN150 |
6” |
450 |
285 |
240 |
8-φ23 |
19 |
300 |
220 |
8-φ28 |
20 |
|
DN200 |
8” |
500 |
340 |
295 |
8-φ23 12-φ23 |
20 |
360 |
310 |
12-φ28 |
22 |
Parameter
Flow Diagram
Air release during working conditions
