Irrigation Direct Canada
Unit 17- 5100 South Service Road, Burlington, Ontario, L7L 6A5, Canada
info@irrigationdirect.ca 905-631-9797
Monday - Thursday 9 AM - 3 PM
Fridays 9 AM - 2 PM
Weight | 1.00 lbs | |
SKU | DT-ARV100 | |
Our Price: | $CAD13.95 |
Air Release & Vacuum Relief Valves are installed on the highest point of a drip irrigation or drip tape watering system to minimize the collapse of mainline and submain pipes, and reduce back siphonage of dirt into drip emitters and drip tape. A rapid drop in line pressure can cause tubes to collapse or flatten. In a newly installed system, loose soil may settle around a collapsed tube, making it difficult for the tube to regain its shape when the next irrigation cycle begins.
Air release valves also reduce the chance of water hammer caused by a sudden reversal of water flows. They allow air to escape during system start-up and prevent air restrictions. Trapped air bubbles can damage pumps (via cavitation) and disrupt flow rates and pressure.
Metric Conversion Table for 1" & 3/4" Air Release - Vacuum Relief Valves | ||||||
---|---|---|---|---|---|---|
Air Action | Pressure | |||||
CFM | CMM | PSI 1" | KPa 1" | PSI 3/4" | KPa 3/4" | |
-45 | -1.274 | -6.56 | -45.230 | - | - | |
-40 | -1.133 | -4.81 | -33.164 | - | - | |
-35 | -0.991 | -3.39 | -23.373 | - | - | |
-30 | -0.850 | -2.26 | -15.582 | -4.8 | -33.095 | |
-25 | -0.708 | -1.40 | -9.653 | -2.95 | -20.340 | |
-20 | -0.566 | -0.78 | -5.378 | -1.75 | -12.066 | |
-15 | -0.425 | -0.37 | -2.551 | -0.80 | -5.516 | |
-10 | -0.283 | -0.13 | -0.896 | -0.30 | -2.068 | |
-5 | -0.142 | -0.02 | -0.138 | .0.10 | -0.689 | |
0 | 0 | 0 | 0 | 0 | 0 | |
5 | 0.142 | 0.04 | 0.276 | 0.20 | 1.379 | |
10 | 0.283 | 0.18 | 1.241 | 0.25 | 1.724 | |
15 | 0.425 | 0.38 | 2.62 | 0.50 | 3.447 | |
20 | 0.566 | 0.65 | 4.482 | 0.95 | 6.550 | |
25 | 0.708 | 0.88 | 6.067 | - |
B5-VBK1