Dezurik – AAVR Vacuum Relief Air Inlet Valves
Vacuum Relief/Air Inlet Valves are normally closed valves. When the system pressure becomes negative, the valve opens, allowing air into the system to prevent a vacuum from the building.
Dezurik – AAVR Vacuum Relief Air Inlet Valves Specifications
- Body Material
- Cast iron, ductile iron, carbon steel, 316 stainless steel
- Body Styles
- Series 1500
- Pressure Rating
- ASME 125 and 250 class
- Size Range
- 3-36” (80-900 mm)
Features & Benefits
- Vacuum Relief/Air Inlet Valves are normally closed valves. When the system pressure becomes negative, the valve opens, allowing air into the system to prevent a vacuum from building. When system pressure returns to positive, the Vacuum Relief/Air Inlet Valve closes air tight. Standard Vacuum Relief/Air Inlet Valves are designed to open with a minimal, 1/4 psi pressure differential across the orifice. Higher or lower relief settings are available to suit the application