VB-060
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Disc-Type Spring-Loaded Vacuum Breaker Description The VB-060 is a normally closed full bore vacuum breaker which is designed to open fully to allow the intake of air into the pipeline or system when vacuum conditions occur, thus protecting the pipeline. Negative pressure (vacuum) conditions are caused by sudden shutoff of the pumps, pipe ruptures or the rapid draining of the pipeline. The VB-060 can be installed both on potable water lines and on wastewater lines. - Pump stations for sewage, waste water & water treatment plants. - Wastewater and effluent water transmission lines. The VB-060 valve is normally closed. The valve is designed to prevent vacuum conditions from occurring in pipelines and piping systems. After a power failure at the pump or a rapid draining of the pipeline, vacuum occurs. If the pressure differential across the orifice is greater than -0.02 bar, the disc will automatically start to open, allowing air into the pipeline to eliminate negative pressure. At -0.05 bar, the orifice will be fully open, allowing for maximum air intake. When the system returns to positive pressure, the disc will automatically close to tightly seal the valve. The VB-060 Vacuum Breaker & Air/Vacuum, Automatic Air Release Valve operates similar to the VB-060 Vacuum Breaker with the addition of three other functions: 1- The air/vacuum component of the AV will discharge air, essential during pipe filling. 2- The vacuum breaker, installed at points where water column separation is anticipated, will open to intake air, then, close quickly to trap the air in the pipeline. The air/vacuum component of the air valve will slowly discharge this trapped air ahead of the returning water column. This will allow the air in the pipeline to act as a buffer against pressure surges and will also, by slowing down the air discharge, slow down the returning water column, prevent upsurges in the pipeline. 3- The air release component will release air continuously while the pipeline is operating under pressure, removing entrapped air from the line. The VB-060 Disc-Type Spring-Loaded Vacuum Breaker should be installed on wastewater transmission lines at the points where it is determined that vacuum or water column separation will occur. Main Features - Size Range: 8” – 24” - Sealing at low pressure: VB-060: 0.01 bar / VB-060 + AV: 0.2 bar - Opening pressure: VB-060: -0.02 bar / VB-060 + AV: -0.02 bar - Maximum Working Pressure: VB-060 8”-10”, 14”-24” - 16 bar / VB-060 12” - 25 bar - Testing Pressure: VB-060 8”-10”, 14”-24” - 25 bar / VB-060 12” - 40 bar - The VB-060 series is available on both potable water and wastewater applications - All internal parts made from non-corrosive materials - Special orifice design, a combination of stainless steel and EDPM, assures long term maintenance-free operation - The VB-060 is designed in accordance with the AWWA standard C512 and the European standard EN 1704-4 - Valve coating: fusion bonded epoxy in accordance with standard DIN 30677-2 Valve Selection The VB-060 Vacuum Breaker & Air/Vacuum, Automatic Air Release Valve has the option of adding an air valve to the basic vacuum breaker valve. The type and size of the additional air valve will be dependent on application (water or wastewater) and valve size required. Please see the table below for all the additional air valve options available. - Thes air valves are intended for use with raw wastewater. For use with aggressive liquids, please consult with our application engineers or with the marketing dept. - For best suitability, it is recommended to send the fluid chemical properties along with the valve request. - Upon ordering, please specify: model, size, working pressure, thread and flange stand

Vacuum Breaker

DIMENSIONS AND WEIGHTS AIR INTAKE Nominal A Size mm PARTS LIST AND SPECIFICATION No 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. Part Material Screen Cover Nut Spring Lock Spring Guide Pin Cover Bearing Retainer Disc Circlip Domed Nut & Washer Threaded Rod Screen Bolt, Nut & Washer Cover O-Ring Body Rubber Seal Bolt Ductile Iron Stainless Steel Stainless Steel Stainless Steel Stainless Steel Bronze Stainless Steel Ductile Iron Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Ductile Iron EPDM Ductile Iron EPDM Stainless Steel

A.R.I. FLOW CONTROL ACCESSORIES Ltd. www.arivalves.com ari@ari.co.il Tel: 972-4-6761988 A.R.I. FLOW CONTROL ACCESSORIES Ltd. reserves the right to make product changes without prior notice. To insure receiving updated information on parts specifications, please call the export dept. at the A.R.I. factory. A.R.I. FLOW CONTROL ACCESSORIES Ltd. shall not be held liable for any errors. All rights reserved.