Description:

Sewage Combination air release valve provide 3 functions:

1. Large air release

1-1. During water filling the pipeline, float will stay at its original position. (open)

1-2. Let large air out of valve thru big nozzle.

2. Small air release

2-1.When the water level comes up to the top, float will be up to its close position and close the sealing arc- big orifice and small orifice.

2-2.The air (2% of solved air in water ) are continuously coming out from water and gather at the top of the valve.

2-3.The float will be driven down and let small pocket out thru small orifice.

2-4.The sealing arc will still be in close position until empty of water

3. Large air intake during draining of the pipeline.

3-1.Float will drop down when empty of pipeline.

3-2.Large air will come into the pipeline thru valve.

3-3.Preventing from collapse of pipeline and break vacuum.

3-4.Protect the sealing o-ring from clogging in the pipeline.

Features:

. Advanced design: Simple mechanism and strong float to prevent cracking during sudden water hammer& quick closure.

. Drain boss at the top & bottom for cleaning.

. No arms or levers to prevent vibrating, bending, direct closure of the fl oat.
. Fully fusion epoxy coated inside and outside of valve body for long term services.
. Manufacturing standard : BS EN1074-4, AWWA C512
. Flange drilling and dimension : BS EN 1092 and BS EN 558 and ANSI flange.

Service Fields:

For sewage water system.

Technical Data:

Size range: DN 50-200MM
Pressure ratings:1.0Mpa,1.6Mp (Flange)
Working temperature: -10°-80°C.
Flow media: sewage water.
Please consult factory for PN25 and antishock device whenever there is waterhammer issue.

Material:

Dimension:

Alpine Flow Control (SuZhou) Co.,Ltd with major focus in the water valve design and manufacturing. The Management staff have over 30 years experience in the water valve design and manufacturing, combined with the high-tech electronics manufacturing experience of multi-national listed companies. This unique combination of traditional and high-tech industry management experience and skills have given us an advantage over the traditional valve manufacturer. More than 40% of our staff are technical staff with knowledge and experience in valve and mechanical design/manufacturing...

Proven and supported by on-going quality and reliability test. AFC has built it’s own in house reliability test laboratory to ensure that our products not only meet the international quality and reliability test specification such as the EN-1074-1/2 T-key and R-key test, but also comply to various international valves standards and specifications.
 

We already achieved WRAS certificate in 2011, and obtained FM approval in early of 2012,
and UL for gate valve. Today, we have got many international famous certificate for drinking water such as WRAS, NSF, AS, CE on certain products, and our product range has expended to double eccentric butterfly valve, rubber disc check valve ,non-slam check valve, both clean water & sewage water air valve, hydraulic control valve and penstock and we always focus on water system valves.
 

In 2018 year, our big plan is developing pressure management valves which has been proved to be a very helpful tool and economic way to save the leakage rate with limited investment and get a fast return in couple months and power savings

In addition, we have a special project team to focus on custom design and special requirement
 

Our Mission :
Be the market leader in Water Valve Flow Control
Company culture :
Technology through Innovation
Quality product and service through Quality people
Business growth through Cohesive partnership