User Manual

4
2600 Emrick Blvd • Bethlehem, PA 18020 • USA •800-922-0085 • www.warrencontrols.com
OPERATION – 377 FLOAT CAGE AND 326L OR 322L LEVER VALVE
• Arisingorfallingliquidlevelinatankraisesorlowersthefloatballinthe377FloatCage.Thismotionisconverted
to force through the rotation of the float rod and lever arm (lever) about the float shaft assembly. The force is
transmitted through the turnbuckle assembly to the lever actuator of a 326L or 322L Lever Valve where it is
used to open or close the valve. Fully immersed in water the float can exert approximately 150 inch-pounds of
torque onto the float arm shaft. The maximum rotation of the float arm shaft is 23
o
.
INSTALLATION – 377 FLOAT CAGE AND 326L OR 322L LEVER VALVE
• Todeterminewhichlevervalveyouhavelocatethepartnumber(configuration)onthefactoryserialnumber
label (See Information Present on 326L Lever Valves section or Information Present on 322L Lever Valves
section for location of important information on valve). Then see 326L Lever Valve Specification section or
322L Lever Valve Specification section to determine the performance and physical characteristics of the valve
(configuration). See the 377 Float Cage Specification section to determine the performance and physical
characteristics of the 377 Float Cage.
• Be surethatthe flow medium,pressure,and temperaturewill notexceed the limitsof the377FloatCage.
Information can be found in the product specifications (See 377 Float Cage Specification section).
• Besurethattheflowmedium,pressure,andtemperaturewillnotexceedthelimitsofthe326Lor322LLever
Valve. Information can be found in the product specifications (See 326L Lever Valve Specification section or
322L Lever Valve Specification section) and on the flow diagram plate regarding these limits (See Information
Present on 326L Lever Valves section for location of important information on valve).
• Eliminatevibrationinpiping.377FloatCagesand326Lor322LLeverValvesarenotsuitableininstallations
where vibration exists.
• Followgoodpipingpractices.Installabypassaroundthe326Lor322LLeverValve.Installstopvalvesinthe
inlet and outlet piping to provide a means to isolate the lever valve.
• Astraightrunofpipeisrecommendedfor10pipediametersupstreamofthe326Lor322LLeverValveand20
pipe diameters downstream of the 326L or 322L Lever Valve.
• Protect326Lor322LLeverValveanddownstreamequipmentwithaself-cleaningstrainer.
• Installgaugesininletandoutletpipingof326Lor322LLeverValvetoprovidemeansforcheckingadjustment
and operation.
• Beforeinstalling,besurethe377FloatCage,326Lor322LLeverValveandpipingarecleaninsideandfreeof
scale, chips, welding spatter, and foreign material. Thoroughly blow out or flush pipe lines.
• Pipesmustbealignedsquarelywiththe377FloatCageand326Lor322LLeverValveateachconnection.
• Ifthelevervalvehasscrewedends,donotapplypipedopetothethreadsofthevalvebodyortothefirsttwo
threads of the pipe.
• Ifthelevervalvehasflangedends,tightenflangeboltsevenlytopreventexcessivestressandthepossibilityof
cracking.
• Donotobscurefactoryserialnumberlabelswithpaint.Ifflowdiagramplatesorinletmarkingswillbecovered
with insulation, it is recommended the information on the plates and markings be transcribed on the outside
of the insulation in the same location as the plate or marking