FlowTop Control Valves - Nooney Controls Corp.

1 FlowTop Control Valves0025-(V-3000) FlowTop 2/7/03 4:43 PM Page 12 Flowserve Corporation, Valtek Control Products, Tel. USA 801 489 8611 The FlowTop Control valve is a high-performance, general-service valve coupled with the high-thrustFlowAct pneumatic diaphragm Logix 500 positioner is mounted standard onFlowTop Control Valves . The Logix 500 simplifies andreduces calibration time to 20-seconds or less bypushing two buttons. The easily installed HART compatible positioner make the FlowTop /Logix 500combination the best choice for general service valveapplications. There is no need for additional expensivesoftware or software support and upgrades.

2 Handhelddevices are not needed to calibrate this valve, makingit the highest performing, low-cost solution for generalservice Pop-belly shaped gallery gives the FlowTop moreCvthan all other Globe Valves on the for use in ANSI Class 150 or 300 serviceapplications, the FlowTop Control valve is capable ofoperating within temperatures ranging from -50 to 800 F (-46 to 427 C).The FlowTop Control valve is available in sizes to 4-inch with a carbon steel or stainless steel features flow-under, single-seated trim with a post-guided valve stem to eliminate cage-guiding parts constructed of corrosion-resistantmaterials provide extended valve AssemblyFigure 1: FlowTop Control Valve Body AssemblySimple, easy, field retrofitablelive loading options available:Minimal additional parts (seeFigures 15,17 & 18)Highest globe valveCv's on the market.

3 The pop belly shapedgallery enables FlowTopto have higher Cv's pertrim size, and valve sizethan all other globevalves on the marketRobust high quality bonnetflange:Flange integral to bonnetZero external leakage at the body to bonnet joint:Graphite gasket eliminates leakage and minimizes torquerequirements. Multiple equallyspaced body bolts insure optimal gasket low seat leakage:A solid graphite seatgasket provides excellent lapping or grindingrequired to achieveclass 4 more messy lapping high quality packing systems available:IncludingUltraGuard environmental packing which exceeds EPA for up to 5 years;no maintenance required (see Figure 18) FlowTop Control ValvesStable plug travelover entire stroke of the valve:Solid, sturdy post styleguide minimizesvibration and wearUp to 10 Cvvaluesavailable per valvesize:No need to lapthe plug and seat 0025-(V-3000) FlowTop 2/7/03 4:44 PM Page 2 Flowserve Corporation, Valtek Control Products, Tel.

4 USA 801 489 86113 FlowTop Control ValvesActuator AssemblyThe FlowAct actuator is compact, reversible and capable of accepting air supply pressures up to 90 psi ( bar) allowing the valve to shutoff againsthigh pressure FlowTop actuator comes standard with a directmounted Logix 500 positioner. In all air to open applications, no external tubing is required. The directmount positioner ports air through passages integral tothe yoke as illustrated in Figure 2. When the directmounted positioner is used, the external supply port isplugged. Air to close applications require externaltubing to the top of the actuator.

5 NAMUR positionermounting is also very simple and easy with FlowTop (IEC ). When this mounting standard is used the internal passageway in the yoke is plugged andexternal tubing is pneumatic diaphragm actuator can operate in tem-peratures ranging from -40 to 176 F (-40 to 80 C).Analog or digital positioners ensure high positioningaccuracy proportional to the valve instrument FlowTop Control valve with the FlowTop pneumaticdiaphragm actuator is the solution for most typicalgeneral-service valve 2: FlowAct 252 ATO/FC Diaphragm ActuatorDirect air supply:Air is portedthrough the internal passage inthe yoke.

6 Available only withdirect mount positioners on air to open applications. No tubing is required. The external supplyport is plugged in these casesHigh quality powder paintedcarbon steel actuator cases:Very corrosion resistant. Paint is durable, resistant to chipping or stem clamp:The horizontal split simplifies assembly and alignmentduring maintenanceCompact design with many springranges available for use with orwithout a positioner:High qualitylong life springs properly aligned bydiaphragm platesHigh quality ductile iron yoke:A high quality durable solid ductile iron yokeEqually spaced springcompression bolts:For use if a press is not available to unload springsDiaphragm capable of 90 psi:Long life rolling assembly is capable of air supplies up to 90 psi, which minimizes actuator size saving money and installed stem leakage.

7 Durable,robust, long life actuator stem stem travel and preventsside loading of seals increasing lifeover all other diaphragm actuatorson the marketZero leakage from thediaphragm case joint:Optimally spaced casebolts insures propersqueeze on the diaphragmat the flange. No air leakage from the caseflanged air supply:AllNAMUR mounted positionersuse external tubing. The internalpassage to the yoke is pluggedin these response times:Due to low volume of airbetween the diaphragmand the caseRadial spring arrangementallows low mounting heightStable guiding systemUninterrupted linear travel,or loss of operating force:Due to fabric reinforced rollingtype diaphragm with minimumarea variation during stem travel0025-(V-3000) FlowTop 2/7/03 4:44 PM Page 34 Flowserve Corporation, Valtek Control Products, Tel.

8 USA 801 489 8611 FlowTop Control Valves4 Flowserve Corporation, Valtek Control Products, Tel. USA 801 489 8611 Body and Actuator AssemblyFigure 3: FlowTop Control Valve AssemblyPacking Studs Bonnet Flange(Integral to Bonnet)BonnetBonnet GasketSeat RingBodyPlugStem GuidePacking SystemSeat GasketSprings3 Spring CompressionBoltsThread CoversDiaphragmDiaphragm PlateExternal Air SupplyStem NutStem Seal Assembly andGuide AssemblySplit Stem ClampActuator NutPacking FollowerYoke Nut Upper and LowerDiaphragm CasesCase BoltsActuator StemVentYokeName PlatePlug StemBody Bolting 0025-(V-3000) FlowTop 2/7/03 4:44 PM Page 4 Flowserve Corporation, Valtek Control Products, Tel.

9 USA 801 489 86115 FlowTop Control ValvesFeaturesAdvantagesLogix 500 Digital PositionerLogix 500 digital positioner reduces calibration time to 20-seconds by pushing one buttonEither standard direct or NAMUR (IEC ) positioner mounting available Easy to install, HART compatible positioners make the FlowTop /Logix 500the best valve/positioner combination for general service needs No software or handheld device is required and can be configured locallyGood Shut-offFlowTop Control Valves offers class 4 shut off with out the need for lapping theseating surfaces. Unlike most conventional Valves , the FlowTop seat ring has aseat gasket, providing very good shut GuidingEliminates cage guiding problemsOne solid sturdy guide stabilizes the stem and plug during entire travel and minimizes vibration and Noise TrimSilent Pac Low Noise baffle can reduce noise levels generated by vapors and gasesEconomical Stainless SteelBellows assembly used for tough sealing applications, like Dowtherm,Bellows Assemblysteam and othersCompactEngineered for applications with limited available installation clearanceANSI BodyDesigned for use in ANSI Class 150 and 300 service.

10 Flanged applicationsEasy MaintenanceBonnet design allows for quick, top-entry service. The valve body canremain in line while trim is changed or Packing ConfigurationAvailable sets include single PTFE V-ring, PTFE braid and loading kits are available (see Figures 13 to 20).Fugitive Emission PackingHigh quality "Ultra seal" environmental packing is available: Exceeds EPA standards of 500 ppm (see Figure 18).Long-life OperationHeavy-duty parts provide extended life, corrosion-resistant constructionMany Positioning Options The valve can be equipped with a high-performance analog or digital positioneror function without a positioner on air signal Variety of Trim Sizes Up to 10 Cvvalues per valve size and many material optionsand MaterialsHigh-thrust Diaphragm ActuatorCompact, light weight, capable of 90 psi ( bar) air supply; multiple springcombinations.