Air Valves perform two important functions in a piping system. They maintain system design efficiency and provide system protection. System efficiency is maintained by venting air via the air valves from the system that can restrict flow and increase pumping costs.
Protection is provided by exhausting and admitting air through the air valves during system operations including start-up, shutdown, and critical conditions such as power failures or line breaks. The exhausting and admitting of air during these conditions will reduce the potential for destructive surges and water hammer normally associated with uncontrolled air or a vacuum condition within the piping system.
Val-Matic manufactures the most comprehensive Air Valve product line offered today. From the smallest simple lever air release valve to the largest surge-suppression combination air valve, all are provided standard with Type 316 stainless steel trim and floats. All Val-Matic Air Valve floats are unconditionally guaranteed. Val-Matic Clean Water Air Valves are certified to NSF/ANSI Standard 61 for drinking water components. All air valves meet AWWA C512 requirements. Two papers on air valves, as well as our sizing software are available by request or on our Software page.