fisher377过滤减压阀FisherType377TripValvesThe377Seriespressure-sensingtripvalveisusedforcontrolapplicati***whereaspecificvalve/actuatoractionisrequiredwhensupplypressurefallsbelowaspecificpoint.Whensupplypressurefallsbelowthetrippointthetripvalvecausestheactuatortofailup,lockinthelastposition,orfaildown.Whenthesupplypressurerisesabovethetrippoint,the377Seriestripvalveautomaticallyresets,allowingthesystemtoreturntonormaloperation.Thetripvalvecanbetop-mountedonamanifold,yoke-mounted,orbracket-mountedtomatchtheapplicationrequirements.现货。)