Anti - Shock Combination Air Release Valve Vacuum Breaker Available Small Air Venting

Triple function, large air exhausting, small air venting, vacuum breaker, Anti-shock, Combination air release valve​

Features:

. Advanced design with simple mechanism, strong fl oat to prevent cracking during sudden water hammer& quick closure.
. Aerokinetic mechanism to resist blow shut under higher air velocity even up to sonic velocity of air.
. No arms or levers to prevent vibrating, bending, direct closure of the fl oat.
. Smooth cage outside of the fl oat, keep float moving in specifi ed guide rail.
. Bottom rubber buffer for collision prevention, and drain easy with proper holes around the cage during vacuum.
. Outside screen will be an option for safety and prevent insects or birds in.
. Fully fusion epoxy coated inside and outside of valve body for long term services.
. Manufacturing standard meets BS EN1074-4, AWWA C512
. Flange drilling and dimension meets BS EN 1092 and BS EN 558 and ANSI flange.

Function:

Combination kinetic air release valve provide 3 functions:

1. Large air release

1-1. During 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.

Service Fields:
For water system, fire fighting, irrigation system.

Technical Data:
Size range:DN 25-300MM
Pressure ratings:1.0Mpa, 1.6Mpa(Thread)
1.0Mpa,1.6Mp,2.5 Mpa(Flange)
Working temperature: -10°-80°C.
Flow media: clean water

Size Selection Table:

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