Vacuum Relief/Air Inlet Valves (AVR)
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1500

APCO Vacuum Relief/Air Inlet Valves (AVR)

Design Features:

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.

Vacuum Relief/Air Inlet Valves (AVR) 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)

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