b'SLP/SW SERIESWA F E R C H E C K S I N G L E F L A P LO N GPAT T E R N L A R G E P O R T S L P / S W S E R I E STheSLPandSWUnicheckSwingCheckValveisavailable RESILIENT O RING SEAT FEATURES SLP/SWupto700mminvariousbodymaterialsanddimensions.TheSWSeriesisretainerless.TheSLPandSLP-Tisnon Resilient, Soft Seatcoupledwithretainerlessdesignandlendsitselftoapplicationsrequiring precisionencapsulatedmachinedsealingsurfacesensureabubbletightseallimit/microswitches,counterweightsetc.TheSLPandSW (Metalseatavailable)flapperhasspringassistedclosing,suitableforhorizontalorupwardsverticalservice(downwardsrequiresanexternalclosingspring,whichisanavailableoptiononlyinSLPand Economical Design provides a highly SLP-TSeries).DesignistoAPI594facetofacedimension efficientcheckvalvewithalargerportgenerallyinaccordancewithASMEB16.10shortpattern/ thandualflapvalvesthatisinexpensiveAPI6DlongpatternandtestedtoAPI598/ISO5208.The and has a short laying length.SLP/SWserieshasalargeboreprovidingalargerflowwhen 1. Atrulydynamicseal,mechanicallycontainedinaspeciallycomparedtodualflapstyleorslimlineuniflapchecks.The designed groove.2. Uniqueindesignandapplication.SLPandSW125Classisidealforwaterworks&chemical 3. Aspressureisappliedtothevalvedisc,thesealiscompressedservice,whilstthe150upto1500Classrangeissuitable intothegroove,ensuringaconsistentanduniformseal.foroilandgasservice&hasanintrinsicallyfiresafedesign. 4. Theloadonthesealiscontrolledreducingwearforlongerlife. Metalseatedisalsoavailable. Light and strongSLP SERIES SupercheckSLP/SWseriesvalvesarelight,solinestressisreduced (Throughpinned) to a minimum.Yettheinstalledvalveassemblyismorerigidthananequivalentlengthofheavy-walledpipe.Smooth, fully automatic operationTheSLP/SWseriesvalvesaredesignedtobefullyautomaticinfunction. Thesmoothopeningandclosingactionreduceslinehammertoa minimum.SLP/SWseriesvalvesareengineeredtopresentanessentially unobstructedorifice.Simplified designTheSLP/SWseriesaremadewithaminimumofparts.ThestainlesssteeltrimandresilientORingseat(softseatversion)ensureslonglife.ThesingleORingensuresacompleteleak-freeseal.SLP SERIES LARGE PORT SIZE(RetainerType)Inletportsanddischavebeenshape optimizedtoachieveafullyopenpositionatlowflowrates.Therefore,theSLP/SWseriesoperatesexceptionallywellintheflowratestypicallyfoundinpipeline containingcontrolvalvesandlineswithvaryingmediaflows.ComparetheSLP/SWseriestotypical SWINGSTYLE(SLP) TILTSTYLE(SLP-T) full-sizedswingcheckvalves.Dueinpart totheiroversized,heavierdiscs,theseSW SERIESvalvesonlyfullyopenatlargerflowrates.(Retainerless) Whenactivatedatalowerflowrate,thesevalveslosetruecontrollabilityanddonotfullyopen.Apartiallyopendisccreatesanobstructionthatproducesahigherpressuredropandflutteringofthediscvalve- disturbingtheflow&increasingthechanceofwaterhammer.SLP/SWSerieswilleliminateorreducetheseproblems.SWINGSTYLE(SW) TILTSTYLE(SW-T)SUPERCHECK - Check Valves - Wafer Style 33'