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APCO Air/Vacuum Valves & Combination Air Valves (AVV) - DeZURIK

APCO Air/Vacuum Valves & Combination Air Valves (AVV)

APCO AVV Air/Vacuum Valves allow large volumes of air to be exhausted from or admitted into a pipeline as it is being filled or drained. They are float operated and have a large discharge orifice equal in size to the valve’s inlet. When filling a pipeline, the Air/Vacuum Valve is open. As the pipeline fills, fluid enters the valve, raises the float and shuts-off. Once the pipeline is filled, the Air/Vacuum Valve closes and remains closed during normal operation.When draining the pipeline, the float drops and allows air to enter, preventing a vacuum and possible pipeline collapse or damaging water column separation. In this way, the large venting orifice protects against vacuum and water column separation or pipeline collapse.

The AVV can also be configured as a Dual Body Combination Air Valve with an ARV Air Release Valve. The dual body style allows use of a wide variety of Air Release Valves with a range of orifices and higher operating pressures. Combination Air Valves combine the functions of both an Air/Vacuum Valve to expel large volumes of air during filling or draining of the pipeline, along with an Air Release Valve to emit small quantities of air during normal operation. Combination Air Valves are typically installed on all high points of a system where both an Air/Vacuum Valve and an Air Release Valve are needed to vent and protect a pipeline.

DeZURIK also offers two styles of APCO Single Body Combination Air Valves: the APCO AVC Single Body Combination Air Valves for clean fluids, or ASU High Performance Single Body Combination Air Valves for use with either clean and dirty fluids. Single body styles are used where compactness is preferred, and/or where risk of tampering exists due to accessibility of the installation.

Snapshot

SIZE RANGE: 1/2-18″ (15-450mm) BODY STYLES: Body Style 140, in sizes .5-3” (15-80mm), ductile iron bodies with a threaded NPT inlet and outlet as standard. ASME 125/150 or 250/300 flanged outlets are available as an option. Body Style 140H are designed for higher pressure service and are available in sizes 1-3” (25-80mm). Body Style 150, in sizes 4-18” (100-450mm), with ASME 125/150 or 250/300 flanged inlets and a plain outlet with steel protector hood as standard. Threaded or flanged outlets are available for valves used inside a pump house. Combination Valve Body Styles 1800, 1800K include an Air/Vacuum Valve piped with a shutoff valve to an Air Release Valve. BODY MATERIAL: Ductile iron, cast iron, carbon steel, 316 stainless steel

APCO AVV Air/Vacuum Valve & Dual Body Combination Air Valves 601

APCO Valves for Vertical Turbine Pumps 586

APCO Air Valve Selection and Sizing Guide 610

Valve Solutions for Pump Stations

Valve Selection for the Safe Operation & Protection of the Pump Station

Defining Expectations During Valve Selection

Material Selection Guide

DeZURIK’s Material Selection Guide program makes it quick and easy to determine which metals or elastomers are suggested as suitable for application in a specific corrosive media.

APCO Air/Vacuum Valves (AVV) Suggested Specification 140.01-1

Air Valves at DeZURIK

Optimizing Pump Stations: A DeZURIK Valve Solution Showcase

APCO Air/Vacuum Valves & Combination Air Valves (AVV)

APCO Dual Body Combination Air Valves

APCO Air Vacuum Valves

D12014 – APCO AVV-140/150 AIR/VACUUM VALVES

D12021 – APCO AVV-140/150 AIR/VACUUM VALVE WITH OPTIONAL CSV SURGE CHECK VALVE

D12025 – APCO AVV-1800/1800K DUAL BODY COMBINATION AIR VALVES WITH CSV SURGE CHECK VALVE

D12024 – APCO AVV-1800/1800K DUAL BODY COMBINATION AIR VALVES