b'LINED BUTTERFLY VALVESMODEL 2014 / 2016 - (PINNED STEM)SEAL CONSTRUCTION & FEATURESShaftweatherseal Strong precision key gives positiveattachmentfor ISO 5211 Actuatormanualleveror flangeaccommodates actuator (Square or all types of operators:Double D).handle, gear, electric andpneumatic actuators. Luberizedbushingsgivestemsupportat actuatormountingandPressure surge seals*immediatelyoutwardaremouldedof seat.integrally inside the seat shaft hole area.These ringsPrecision taper pins belowdiscareensure positive,materiallycompatible vibrationproof,stemtowiththeseattodisc connection.Easily provide failsafe sealingfieldreplaceable. aroundstem,(Pinless design available)eliminating possible leakage.The phenolic backed*Valvesavailablewithseat is non-collapsible,bothwaferandlugstretch resistant andtype bodies.Fully lined blowoutproof.Easily body in a broad range fieldreplaceable. ofmaterials-includingTeflon.Onepiecethru-stemPolisheddiscflats design ensuresmatewithseatflats dependability andto give a highlypositive disc control.efficientseal:preventsleakageintothestem Alignmentfeaturesarea. alloweasyinstallationbetweenpipelineflan-ges; a realPrecisionprofiledisc installation cost saver. provides bubble-tight(model2014AHP2&shutoffwithminimal 2016HP2)disc/seat interference, assuringminimumtorque and longer seat lift.Axialbearingpreventsshaft overload.Supportedstemsealprotects against distortion,acommoncauseofstem leakage. Precisionmachineddiscedge&shaftflats.SUPERSEALCONSTRUCTIONThe disc is precisionThemodernseatanddisc The superseal seat design* has aBonded distortion proof seat, close manufacturedtoclose design insures positive sealingmuchsmallermassofelastomer tolerances.tolerances on the O.D.whilemaintaininglowseating whichcanswell,inturntorqueis andtheflats.Seating torque. The superseal designcontrolled to a reasonable degree. Positive shaft seals.edge is a polished halfextendsseatlifebyeliminatingLowpotentialofseatswell.ball for torque control. any bunching or tearing.Controlled torque by design superiority.The conventional design reliesElastomersaresubjecttoswellingNon-precisiondiscdimensions.TRADITIONAL CONSTRUCTIONThe conventional discon distortion and bunching offromfluidabsorptionwhichcan Seat distorts during installation and has been sanded tothe seat to achieve a bubble tightincreasethemassoftheseat.operation.removerougharea,shutoff.Seat life is decreasedThis increase can and often does precisedimensionsare causinghighermaintenancecost causeexcessivelyhighseating Shorter seat life.notmaintained. andincreaseddowntime. torque. Seat life is shortened. Higher torque due to bunching and potentialswelling.*Design varies according to size, rating and material specifications.Thisbrochureisgeneralinitsnatureanddesignissubjecttochangeatanytimewithoutnotice.22 SUPERSEAL - Butterfly Valves'