The Automatic Continuous Acting Air Vent has a 0.0233 in 2 orifice enabling a discharge of 89.5 cfm of air withstanding 232 PSI pressure. The 1” Automatic Continuous Acting Air Vent has the small orifice feature with orifice dimensions of 1/16” x 3/8”. While the system is pressurized, air accumulates in the body systematically dropping the rolling seal mechanism releasing the trapped air. After air is expelled, water rises in the body and forces the float to close the vent.
Combination Air/Vacuum Relief and Continuous Acting Air Vent
The 2” Combination Air/Vacuum Relief and Continuous Acting Air Vent has a 0.0186 in 2 small orifice and a 1.25 in 2 large orifice. The 2” Combination has a unique and innovative feature which improves its efficiency even further. The combination of a large and small orifice in one orifice creates a self-cleaning mechanism. This important design impeded clogging and stops the cleaning of particles to sealing surfaces preventing leakage. This process efficient air discharge and inflow capabilities, surpassing the performances of much larger and much heavier air valves that shut at much lower differential pressures. The 1” Combination Air/Vacuum Relief and Continuous Acting Air Vent’s dynamic float design allows air release under pressure differential of up to 10 PSI. Its durable reinforced nylon body makes it a high impact, corrosion free air vent. The introduction of the 1” Combination Air Vent allows more flexibility for irrigation design as this less costly vent can replace the 2” size in pipes with diameters up to 4”.