Pressure control for water pump 1. Max. Temperature: 140F 2. Max. Pressure: 150PSI 3. Water Tank: 120 gallons 4. Model: AV-30 5. Coverage: Air Volume Controls are designed to insure the proper balance of air and water in a water pressure system. They prolong pump life by reducing the cycling frequency and cab be used onjet, centrifugal and rotary pumps. 6. Instructions for installation.