Valves

TKV Automatic Air Valves (With Combination of Air Release Valve) Available Sizes - 50mm to 200mmPressure Ratings - PN10 & PN16Automatic Air Valve Material of Construction Body, Cover, Cowl & Plate Ductile Iron, BS EN1563 Grade 420/12 Float Ball, Guide Screw, Float Guide, Bolt & Protection Grid: Stainless Steel,BS 970:Part 1 304 Seals EPDM BS EN1563 WA or NBR ASTMD 2000 70o IRHD Coating: Fusion Bonded Epoxy Corro-Coat EP-R, AWWA C213-96/NZ4158.1 Part 1 Air Release Valve:Body & Cap Ductile Iron, BS EN1563 Grade 420/12 Float Ball, Spring Pin, Float Pivot Arm,Nozzle & Bonnet: Stainless Steel,BS 970:Part 1 304 O-Ring Seal & Orifice button EPDM BS EN1563 WA or NBR ASTMD 2000 70o IRHD Coating: Fusion Bonded Epoxy Corro-Coat EP-R, AWWA C213-96/NZ4158.1 Part 1 Unique Features: TKV Automatic Air Valve is a Single Orifice Air Valve and can be combined with small Air Release Valve to make a Double Orifice Air Release Valve Assembly. During the exhausting sequence, the air flowing around the float ball produces a resultant downward force, which maintains the ball in the open position. The kinetic design of TKV Air Valve prevents premature valve closure/blow shut while exhausting air up to sonic speed, therefore can be operated at higher differential pressure or exhausting a greater volume of air than those conventional air valve. Full length guide bush ensure proper seating even when the air valve is not perfectly vertical. Built-in protection grid on the air valve prevents anything larger than 5mm in diameter from entering the system during draining or when the system is empty. Rubber cushion protects the float ball from damage during sudden vacuum. During operation the small air release valve is capable of venting out air pockets that is trapped in water thereby increasing the system efficiency. Specially designed pivot arm link of air release valve is able to amplify the buoyant force upto 15 times thus enables the orifice button to seal the orifice more tightly Spherical Stainless Steel Float Ball is tested upto 70 bar. Fusion Bonded Epoxy Powder coating body is able to withstand mostly all harsh conditions and is suitable for drinking water application. TKV 3-in-1 In-Line Strainer