VACUUM INTERFACE VALVE AVV100 - 2 Pages

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VACUUM INTERFACE VALVE AVV100
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Catalogue excerpts

Wartsila Water Systems has supplied wastewater treatment systems to the marine & offshore market for over 40 years. Our operational experience and market-led innovation and technology means that we can deliver a range of unrivalled wastewater treatment products. Mindful of the environment, we work to ensure that all our products meet the highest standards of compliance. Wartsila Hamworthy has developed an enviable reputation for reliable equipment, backed up by an efficient spares and service capability. The Wartsila Hamworthy Vacuum Interface Valve (VIV) is the interface between a Wartsila Hamworthy sewage collection system and conventional greywater drains and urinals. The VIV makes it easy for showers, wash basins, laundry and galley drains to enjoy the cost savings and benefits of vacuum system piping. Vacuum system piping is smaller and lighter than conventional gravity pipework, and can be run in any convenient orientation and around obstacles. This means lower material cost, installation labour savings, considerable design flexibility, and water savings of up to 85%. In addition, the performance of a vacuum system is unaffected by ship motions. FEATURES • Many years of proven service • Lightweight unit • Simple to install • Reliable operation • Easy to maintain • Quiet operation    ■ ■ ■

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Typical sink installation (urinals, showers, etc.) OPERATION The VIV is installed next to a drain or bank of drains. Waste gravity flows to the inlet of the VIV. The AVV 100 operates automatically by sensing the water pressure on the inlet side of the valve (300mm H2O) and opening. The differential air pressure (atmospheric on one side, vacuum on the other) drives the waste water through the valve to the vacuum collection system. The initial water pressure is relieved, and the valve closes. The cycle repeats when waste water has again filled the inlet. In the case of a urinal operation, the VIV...

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