WILLAMETTE BALL AND CONE VALVES - Aftinc

List 26 Series 2600 Ball ValvesCost/Performance CharacteristicsVenturi Allows Smaller-Than-Line-SizeValve UseThe venturi-type installation allows effective use ofthe List 26 in small er-than-line-size applications, suchas distribution systems, pressure reducing serviceand gravity mains. The List 26 is ideal for theseap pli ca tions because of its unobstructed waterway.In many venturi in stal la tions, it can be specified oneor two sizes smaller than normal line size.The user benefits from the su pe ri or operatingand maintenance features of the List 26 at a costcompetitive with the larger ob struct ed-waterwayvalves. In some cases, headloss resulting from theventuri-List 26 com bi na tion is actually less thanfrom the larger obstructed-waterway valves. Testshave shown a 24" (600mm) venturi, for example, toproduce less head loss than a 30" (750mm) gate orbutterfly valve in certain applications.24" (600mm) Ball ValveFlow30" Diameter(762mm)21 24" Diameter(610mm)8 Reducer30" Diameter(762mm)IncreaserImproved Valve Flow CoefficientsAPPROXIMATE CV VALUESAPCO Willamette Cone Valve for Closed Loop System Plug Anglein Degrees from 99322,57148,367104,257752,300CV values are based on the amount of flow througha full ported ball valve in a closed loop system at1.0 psig (6.9 kpa) constant pres sure drop.CV calculations based on:CVQ Flow in U.S. gallons per minute(GPM)P Pressure drop (PSI)SG Specific gravity of fluid(Water 1.0)CV Valve flow coefficientNote:For more specific flow in for ma tion, please contact yourDeZURIK APCO Willamette rep re sen ta tive.InchMillimeter9

List 26 Series 2600 Ball ValvesMetal to Metal SeatsSpring Seat DesignClosing ActionThe ball is fully rotated and positioned for final sealing using positivemechanical stops in the valve actuating mechanism. (Figure A)A.004"-.010" Gap(.1-.3mm)Closed and SeatedThe differential pressure (high pressure/low pressure) acting onthe back side of the ball seat ring causes the outer rim to deflectslightly, causing the ball and ball seat ring to move forward andmake contact with the body seat ring. (Figure B)Opening ActionThe ball is rotated to open the valve by the valve actuatingmechanism. After the ball rotates approximately one half degree,the offset ec cen tric action is sufficient to pull the ball seat backfar enough to overcome the ball seat ring de flec tion. Seats neveragain make contact during rotation of the ball. The ball stays in theopen position using positive me chan i cal stops in the valve actuatingmechanism to form a smooth, un ob struct ed water passage.High Pressure SideBLow PressureSideBack Side Of Ball Seat RingHigh Pressure SideMetal to Metal Seats Last Decades Longer Than Rubber SeatsRubber seated valves that are initially less expensive, can become very costly and inconvenientwhen your system is shut down due to in ev i ta ble rubber seat repair and/or re place ment. Ourdesign has resulted in metal-to-metal seats that can handle tough applications and provide longmain te nance-free life without wedg ing, galling, scraping or seat replacement.Metal to Metal Seats Are Designed For Severe ThrottlingService. Rubber Seats Are Not!48" (1200mm) 300# Class Turbine Guard Valve with High Pressure Accumulator Installed in Northern California.Hydro Electric Project Emergency Shut-Off Valve10

List 26 Series 2600 Ball Valve FeaturesPrecise Flow RegulationList 26 Ball Valves will control pressure differentials and flow rates toextremely close limits without hunting, vibrating or excessive noise.List 26 valves act as an energy absorber in any throttled position dueto the back pressure inside the valve body and around the ball. This,together with durable metal to metal seats which allow line velocities inexcess of 100 ft./sec. (30 m/sec.), make Willamette Ball Valves ideal forthrot tling applications.Virtually Maintenance FreeThousands of Willamette Ball Valves have been in service forover a 40 year period almost completely trouble-free.Self Cleaning, Non-Clogging DesignEngineering Reminders1. Metal seated ball valves andadjacent pipe must be in de pen dent lysupported.2. Valve supports are not in tend ed foruse as anchors.3. Due to the fact that alignmentbetween the valve and adjacentpipe should be stress free, it isrecommended that a flexibleconnection be in stalled on the valveseat side.When the valve is opening or closing, flow goes through and around theball, flushing out debris. This makes the List 26 ideally suited for rawsewage service, assuring complete closing of the valve.Drop-Tight ShutoffMetal to metal seats mate precisely, maintaining a drop-tight seal.The seal lasts the life of the valve because of the durability of the metaland the eccentric motion of the seats. (Standard leakage is defined as1oz. (29.57 mL) per nominal inch size per hour.)No Measurable Head LossTrue full port opening results in no more head loss than an equivalentlength of pipe.Trunnion MountedThe trunnion mounted ball allows the majority of the hydraulic loadto be supported by the trunnions, resulting in low bearing pressureand no shaft fatigue.Longer Bearing LifeBearing materials are made of different degrees of hardness preventinggalling and extending life. Bearing pressures are low compared tosimilar valves (900 psig (6205kpa) for 150# class and 1500 psig(10342kpa) for 250# class). Solid bronze con struc tion means longer,trou ble-free service, and like our metal seats, the bearings will last thelife of the valve.Coastal Water Authority, Houston, TXLynchburg Pump StationAir/Oil Tandem CylindersLifetime SeatsOur competitors say their seats are easily replaceable because theyhave to replace their seats. Under normal operating conditions youwon't have to replace List 26 metal seats.Hydraulic Water Cylinder ActuatedList 2611

List 26 Series 2600 Ball ValvesValve and Operating Mechanism DimensionsList 26 – AWWA Metal Seated Ball ValveDia.BCAEnvelope dimensions of the ball valve assembly (valve andop er at ing mech a nism) are shown below.For more specific dimensions, please contact your DeZURIKAPCO Willamette rep re sen ta tive.Dimensions and specifications given in this pub li ca tion werecorrect at time of printing, but should not be used in lieu ofcertified drawings.Note: A ll Dimensions For Class 250# ValvesAlso Apply to Class 300# Valves.APCO Willamette List 26 Ball valves are man u fac tured to AWWAC-507 standard for ball valves 6" - 48" (150 - 1200mm) 150, 250and 300psi pressure classes. 54" - 60" (1400 - 1500mm) rox. raulic Cylinder OperatorList 26 – Hydraulic Cylinder OperatorDia.BOPENSHUTCATorque unit (valve operating mechanism) com plete withap pro pri ate operator is shown in its cus tom ary verticalori en ta tion, (per pen dic u lar to pipeline), however, torqueunit complete with operator may be rotated in any of 90 increments (parallel with pipe-line) if so desired to suitinstallation re quire ments.Valve accessories such as control piping, limit switches,etc., not shown.12ABCWeight(Length)(Height)(Width)(Approx. 0131543260014787InchMillimeter

List 26 Series 2600 Ball ValvesValve and Operating Mechanism DimensionsAir/Oil Tandem Cylinder OperatorList 26 – Air/Oil Tandem Cylinder idth)(Approx. otor OperatorList 26 – Motor idth)(Approx. 43260014787InchMillimeter13

List 26 Series 2600 Ball ValvesValve and Operating Mechanism DimensionsElectric Motor Operator with90 Direct DriveList 26 – Motor Operator with 90º Direct x. 5321624292110192789212652InchMillimeterManual OperatorList 26 – Manual rox. 012973InchMillimeter14A(Length)

List 26 Ball Valves and List 22 Cone ValvesOperator CharacteristicsOperatorsWillamette List 26 Ball Valves canbe sup plied with stan dard man u al,electric motor or cylinder op er a tors for most ap pli ca tions. Otheroperator control accessories canbe supplied that allow the user totailor the List 26 to specificper for mance requirements.Manual OperatorThe manual operator is usedfor any stop service wherede pend abil i ty is critical andwhere au to ma tion is notnecessary. Since the valve canbe easily operated by oneperson, no bypass is nec es sary.The op er a tor is supplied with astan dard AWWA handwheel or2" (50mm) square operating nut.These same op er a tors are usedwith the List 22 Cone Valvesdescribed in the second part ofthis brochure.Cylinder OperatorsCylinder operators are specifiedfor automatic operations.Motor OperatorAir/Oil Tandem CylinderHydraulic CylinderThis operator uses a doubleacting piston which opens andcloses the valve when pressureis in troduced. This is a standardcylinder pow ered by water or oil,designed per AWWA C540.The tandem cylinder above is ourpreferred operator. This air/oilsystem elim i nates the in stal la tionof a costly hy drau lic accumulatorsystem by using a com pressedair supply for a power source.This supply of compressed airalso furnishes an accumulatedsource of energy to provide anemer gen cy closure of the valveduring power failure or otherunexpected conditions.A clean reliable source of air (forbest results, 85-125 psig (586 862kpa) is pro vid ed to the uppercylinder to power the valve. Thelower cylinder is oil filled and isused to provide control of theopening and closing times withthe smooth operation of oil.For all valves, emergency fastclosing func tion can be providedfor rapid closure in the event ofloss of power.For applications requiring motoroperated valves, we will gladlymake rec om men da tions andsupply the dimensions andcharacteristics for the valve,operator and controls required.On the List 26, the electric motoroperator is also available with a90 direct drive unit (instead ofour standard link and lever torqueunit) for remote modulating, flowcontrol applications re quir ing amore direct 1 to 1 ratio of openingand closing.Buried and SubmersibleServiceThe operating mech a nism isper ma nent ly lubricated and canbe sealed making it suitable forsubmersible service to ap prox i mate ly 20 feet (6m) for ex tend edperiods of time. A com pleterange of stem extensions, valvestreet boxes complete withindicators as well as floor standsare also available.15

List 26 Ball Valves And List 22 Cone ValvesSchematic/Standard ControlsHydraulic Cylinder (Oil or Water) forMod u lat ing ControlClose Solenoid4 Way - 3 PositionSolenoid ValveShown De-energized1Open Speed ControlValveOperation:1. Normal Opening of ValveA. Open solenoid valve (1) (4 way/3 position) is energizedB. Pressure (P) to port BC. Port A exhausts to EHydraulicCylinder2. Normal Closing of ValveA. Close solenoid valve (1) (4 way/3 position) is energizedB. Pressure (P) to port AC. Port B exhausts to EOperation:EPBEPressureExhaustClose Speed ControlValveCloseManual Override — Push in and rotate knob fully clockwise.There is a manual operator for both opening and closing functions.Both must be rotated fully counterclockwise for normalelec tri cal operation.Hydraulic Cylinder (Oil or Wa ter) with2 Fast Close So le noidsAOpenSolenoidManualOperatorValveNormally Open Fast Close2 Way Solenoid ValveHydraulicCylinder4 Way Solenoid ValveShown De-EnergizedPosition3241. Normal Opening of ValveA. Solenoid valve (2) (4 way/2 position) is energized.Pressure (P) to port B and A exhausts to E.B. Solenoid valves (3) (2 way normally open)are energized. No flow.OpenSpeedControlValve2. Normal Closing of ValveA. Solenoid valve (2) (4 way/2 position) is de-energized.Pressure (P) to port A and B exhausts to E.B. Solenoid valves (3) (2 way normally open)are energized. No flow.PressureABEPCloseSpeedControlValveIsolation ValveClose For ManualControlv 4Close3. Emergency CloseA. Solenoid valve (2) (4 way/2 position) is de-energized.Pressure (P) to port A and B exhausts to E.B. Solenoid valves (3) (2 way normally open) are de-energized. Cylinder extends to close valve at highspeed rate.ManualOperatorValve3ExhaustNormally Open Fast Close2 Way Solenoid ValveSpeed Control Optional/Emergency Fast CloseManual Override

a full ported ball valve in a closed loop system at 1.0 psig (6.9 kpa) constant pressure drop. Note: For more specific flow information, please contact your DeZURIK APCO Willamette representative. APCO Willamette Cone Valve for Closed Loop System Plug Angle . List 26 Series 2600 Ball Valves A. List 26. A 2200. 2600.