Basic Documentation

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Two-Way Flanged Iron Globe Valves
2-1/2to6",EqualPercentageorLinearFlow
NormallyOpenorNormallyClosed
ANSIClass125or250
Description
Designedtoworkwitheitherpneumaticorelectronicactuators,
theFlowriteTwo-wayValvesareavailableinbothANSIClass125
and250fornormallyclosedornormallyopenaction.
Features
• Valveangeface-to-facedimensionsmeetISA75.03standards
• Direct-coupled,universalbonnet
• Bronzeorstainlesssteeltrim
• Standard-orhigh-temperaturepacking
• Close-offupto250psi
• Fullyserviceable
• Greaterthan100:1rangeability
• Equalpercentageorlinearowcharacteristics
• 2-1/2and3-inchsizesavailablewith3/4-inchstrokeonly
• 4-,5-,6-inchareavailablewitha1-1/2-inchstroke
• ANSILeakageClassIV(0.01%ofCv)
• Cartridge-typepackingforeasyservice
• Orderableasavalveonlyorasacomplete
valve/actuatorassembly
Applications
TheFlowriteTwo-wayvalvesarerecommendedforwater,steam,
andglycolsolutionsupto50percent.Additionalspecications
includethefollowing:
• WaterinletpressuresuptoANSI125andANSI250castiron
bodyrating
• Watermodulatingdifferentialpressureupto25psi(172kPa)
forbronzetrimand50psi(345kPa)forstainlesssteeltrim
• Steaminletto100psigwithmodulatingdifferentialpressureup
to50psi(345kPa)
Specications
Valve Size .........................................................2-1/2to6”(65to150mm)
Body Style .....................................................................................Flanged
Seat Style ................................................................................. SingleSeat
Action ..................................... NormallyClosed(NC);NormallyOpen(NO)
Valve Body Rating ................................................... ANSIClass125or250
Stem Travel (Stroke)
2-1/2and3” ....................................................................... 3/4”(20mm)
 4,5and6” ...................................................................... 1-1/2”(40mm)
Materials
Body ............................................................CastIronASTMA126ClassB
 Trim ................................................................... BronzeorStainlessSteel
 Stem ................................................ StainlessSteelASTMA582Type303
Packing
 NormalDutyPacking .......................................................... EPDMO-rings
 SteamPacking ........................................... PTFEV-ringsandEPDMO-ring
Operating
ControlledMedium ............................................ SaturatedSteam,Water,
 GlycolSolutionsupto50%
Medium Temperature Range
 NormalDutyPacking .........................................20to250°F(-7to120°C)
 SteamPacking ...........................................................337°F(170°C)max.
Max. Inlet Pressure
 Water .............................................................. RefertoReferenceSection
 Steam ........................................................................ 100psig(690kPa)
Max. Recommended Differential Pressure for Modulating Service
 BronzeTrim
  Liquid ......................................................................... 25psi(173kPa)
  Steam ........................................................................ 15psi(103kPa)
 StainlessSteelTrim
  Liquid ......................................................................... 50psi(345kPa)
  Steam ........................................................................ 50psi(345kPa)
Rangeability ..................................................................................>100:1
Close-off Ratings .............................................AccordingtoANSI/FCI70-2
Close-off Pressure ....................................... RefertotheReferenceSection
Leakage Rate ...........................................................ClassIV(0.01%ofCv)
Flow Characteristics ........................................ EqualPercentageorLinear
Dimensions
 Face-to-face .....................................................................ANSI/ISA75.03