Suzhou Alpine Flow Control Co., Ltd
Suzhou Alpine Flow Control Co., Ltd Be The Market Leader In Water Flow Control Valve
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EN1074-4 Combination Air Release Valve Single Body Full Flow Area Triple Function
Feature:
AFC's air release valve conforms to International standard EN1074-4 and AWWA C512.
Compared with other plant air valve, ours have not only large air exhausting and large air intake under invacuum,but also one more function of small air releasing. As we know normally there is 2% air in water system,our av does not stop small air venting untill all air in valve is completely released while the top seal arc in closed status.
Our air valve is 100% full bore(inlet-outlet),simple components,valve body and bonnet, float,seal arc, guide barrel etc,most of them can be recycled-evironmental. Single valve chamber,unlike many connected bodies are easy to break up during transportation. All internal accessories are of AISI 304SS, hardness and quality are quaranteed.
There is a seal gasket in the valve above big float and it helps orifice make better sealing effect. With rubber seal gasket above float, it can absorb water hammar to avoid crash with seal arc and valve body and protect air valve from hurting.
Anti-shock accessories is available.
Size Selection Table:
| Water flow rate range Max CMH | 760 | 1360 | 4160 | 8500 | 19100 | 33400 | 76300 |
| Main pipeline size mm | 80-300 | 200-400 | 400-700 | 750-1000 | 1050-1500 | 1500-2000 | 2100-3000 |
| Inlet size of KARX mm | 25 | 50 | 80 | 100 | 150 | 200 | 300 |
| bore of outlet mm | 50 | 75 | 95 | 130 | 170 | 230 | 330 |
| small orifice size mm | 1.6 | 1.6 | 2 | 2.5 | 3 | 4 | 4 |
Material List:
KARS ( Thread Type DN25-DN50)
KARX ( Flange Type DN50-DN300)
Dimension:
KARS ( Thread Type DN25-DN50)
KARX ( Flange Type DN50-DN300)
Air Flow Characteristic
Large Air Exhausting
Air Intake
Small air venting