Triple Function Combination Air Release Valve Anti Shock EN1074-4 And AWWA C512
Features:
Anti-shock combination air release valve can prevent water hammer. It decreased the water velocity and restrict the velocity of air flow. This type of valve is generally used in long water transmission pipeline where may occur a water hammer. If the air exhaust out the valve too quick, the water will comes in very fast, too. The water will prevent the float go up which caused the valve leaking.
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:
KARX ( Flange Type DN50-DN300)
No. | Part Names | Material | Standard |
1 | Body | Ductile Iron | EN GJS500-7+EPDM |
2 | Float | Stainless Steel | AISI304 |
3 | Sealing Arc | Stainless Steel | AISI304 |
4 | In Hex Bolt | Carbon Steel/Stainless Steel | G.I/AISI304 |
5 | Bonnet | Ductile Iron | EN GJS500-7+EPDM |
6 | Cover | Carbon Steel | AISI304 |
7 | Screen | Stainless Steel | AISI304 |
8 | Hex Bolt | Carbon Steel/Stainless Steel | G.I/AISI304 |
9 | Washer | Stainless Steel | AISI304 |
10 | Pillar | Alunminum | Commercial |
11 | O-ring | Rubber | NBR/EDPM |
12 | Seat | Rubber | NBR/EDPM |
13 | Nozzle Seat | Rubber | NBR/EDPM |
14 | Guide Barrel | Stainless Steel | AISI304 |
15 | Buffer | Rubber | NBR/EDPM |
16 | Small Nozzle | Stainless Steel | AISI304 |
Dimension:
KARS ( Thread Type DN25-DN50)
KARX ( Flange Type DN50-DN300)
Air Flow Characteristic
Air Intake - Vacuum
Small air venting