Description
Combination air release valve constructed from durable ductile iron, designed to efficiently release trapped air and prevent vacuum conditions in pipeline systems. Automatically vents air during filling and operation, while allowing air intake during drainage or pressure drops to maintain system integrity. Rated PN25 for pressures up to 25 bar — ideal for high-pressure applications. Equipped with threaded ends for secure, leak-tight connections, ensuring easy installation and maintenance.
Features
FEATURES / CHARACTERSTICS
Design : BS EN1074-4, AWWA C512
Rating : PN25
Connections : BS EN 10226-2 BSPT Threaded(EX. BS21)
Working Medium : Clean Water
Ductile Iron body, Stainless Steel Float Ball
Provides 3 functions:
1.Large air release during filling of the pipeline.
2.Small air venting under pressurized pipeline.
3.Large air intake during draining of the piieline.
WORKING TEMPERATURE :
25 bar -10° C to 80° C water
MAXIMUM OPERATING PRESSURE :
Shell- 37.5 bar
ON REQUEST :
ANSI Standard Flange (subject to minimum order quantities)
Specification
| Parts | Material |
|---|---|
|
Body |
Ductile Iron |
|
Float |
Stainless Steel |
|
Sealing Arc |
Stainless Steel |
|
Hex Bolt |
Carbon Steel/SS |
|
Cover |
Carbon Steel |
|
Screen |
Stainless Steel |
|
Buffer |
NBR/EPDM |
|
Guide Barrel |
Stainless Steel |
|
Nozzle Seat |
NBR/EPDM |
|
Seat |
NBR/EPDM |
|
O-ring |
NBR/EPDM |
|
Bonnet |
Ductile Iron |
|
Pillar |
Aluminium |
|
Hex Bolt |
Carbon Steel/SS |
|
Washer |
Stainless Steel |
|
Small Nozzle |
Stainless Steel |
