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Vacuum Catalogue - Edwards

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Technical DataValveGV gate valvesPVPK pipelinevalves soft startBRV backing/roughing valveQSB63/100/160quarter swingbutterfly valves,Diffstak isolationvalvesValve TypeRecommendControl ValveConfigurationSchematicDouble-actingcylinder with no 1 x 5-port 3spring returnSingle-actingcylinder with 1 x 3-port 1spring returnDouble-actingcylinder withspring return tothe midposition(thatis, isolatedposition)Double-actingcylinder with nospring return2 x 5-port or (1x 5-port)1 x 5-port 42*(4†)Supply pressure 3-port 5-portbar gauge 2.1 - 8 3.4 – 4.8Psig 30 – 115 50 - 70* This configuration allows the use of the isolated position of thevacuum valve.† This configuration only allows the use of the roughing andbacking positions of the vacuum valve.5Page203Shop online at www.edwardsvacuum.com

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