Limitorque Valve Actuation Systems
Limitorque Valve Actuation Systems Electric and Fluid PowerActuators and Control SystemsExperience In Motion
Flowserve: Solutions to Keep You MovingFlowserve is one of the world’s leading providersof fluid motion and control products and services.Globally, we produce engineered and industrialpumps, valves, seals, systems and automationequipment, and provide a range of related flowmanagement services. Our solutions move eventhe most volatile and corrosive fluids safely andsecurely through some of the most extremetemperatures, terrain and challenging operatingenvironments on the planet. Flowserve marketsare large, diverse and worldwide. Our productsand services are specified for use in a vast rangeof industries, including oil and gas, chemical,power generation and various general industries.SMBMXChanging the Valve Control IndustryIn the 1920s, Payne Dean, an emigré inventorfrom England, was issued a U.S. patent for amachine with the unique ability to sense andsubsequently limit output torque in a controlledmanner. This “limit the torque device,” orLimitorque, fundamentally changed the valvecontrol industry. Today, all heavy-duty electricactuators employ some method that limitstorque in order to safely operate automatedvalves while protecting people and property.In 2012 Flowserve established the LimitorqueFluid Power Systems team with the expressedmission to develop a comprehensive line of fluidpower valve actuators that meet the oil and gasindustry’s most current and stringent standardsfor safety, performance and reliability. Unlikethe modified or re-purposed actuators offeredby competitive manufacturers, the engineersspecifically designed and built heavy-duty,fluid-power, piston-type Scotch yoke actuationfor rotary and linear valve operation.L120HBC WormGearboxLPSV Series GearboxCEAQXSR Spur GearboxWG Worm Gearbox2LPCMaster Station IIILHS
flowserve.comLimitorque Timeline1940s Limitorqueelectric actuators aidedthe Allied WWII effortPayne Dean receivedpatent for torquelimiting device19291930s2000s Flowserve acquires Limitorque1940s1930s Torque limitingpatent was purchased byPhiladelphia Gear Works1950s1960s Introduced SMBelectric, pneumaticand high-pressure gasSMBG products1960s1950s Introduced theSMA electric actuator andpneumatic, high-pressuregas HMGTable of ContentsFlowserve: Solutions to Keep You Moving. 2Limitorque Timeline. 3World-class Actuators and More. 4Limitorque Electric Actuators. 5–10Gearboxes. 11–12Limitorque NetworkProtocols and Controls. 13–16Limitorque Fluid Power Systems. 17–19Fluid Power Actuators Key Certifications. 20Global Support . 211970s1980s IntroducedL120 modular electricactuator and networkprotocols; developedpneumatic L270 andSY hydraulic poweractuators1980s1970s Developed andtested SMB electricactuators for nuclearcontainment service1990s2000s Introduced first type of actuatorwith brushless DCV motor (BLDC) andabsolute encoder — QX non-intrusive,quarter-turn actuator2000s Global offices andmanufacturing centers opened inChina, India and UK QRCs2000s2010s1990s Introducedfirst actuator withabsolute encoder —MX non-intrusive,multi-turn actuator2010 Spirit of Flowserve CEO Awardfor Outstanding Performance in 20111990s Expandednetwork protocolswith additionof Profibus andFoundation Fieldbus2010 Introduced LB (linear base),QXM (QX multi-turn for choke and controlvalves) actuators, and HART protocol2010 Launched Limitorque FluidPower Systems operations in Italy2010 Introduced MX single phaseACV with brushless DCV motor (BLDC)and absolute encoderIn 2013 Limitorque introduced LPSPneumatic Scotch Yoke Heavy-Duty ActuatorIn 2014 Limitorque introduced LPCPneumatic Compact Scotch Yoke ActuatorIn 2014 Limitorque introduced LHSHydraulic Scotch Yoke Heavy-Duty ActuatorIn 2014 Limitorque introducedMaster Station IIIIn 2014 Limitorque introducedCompact Electric Actuator (CEA)3
World-class Actuators and MoreFlowserve Limitorque ProductsFlowserve Limitorque products help make valve controleasier in ways as diverse as the applications in whichthey are used. Whether you need an electric actuatorwith the strength to handle 2224 kN (500 000 lb) ofthrust, a fluid power actuator to deliver 250 kNm(184 000 ft-lb) or more of torque or a sophisticatedcontrol network to precisely orchestrate hundreds ofvalves, you will find that Limitorque products makethe task easier. With almost 90 years of experiencein the field of valve control, Flowserve Limitorqueunderstands the particular needs of customers inevery major industrial segment. Limitorque actuatorsare at work in hundreds of thousands of sites aroundthe world, reliably automating valves in some of theharshest conditions imaginable: from scorching desertsands to frozen tundra, from rainforest humidity tothe stormy salt spray of offshore oil rigs. Automatingindustrial valves can help increase safety, raiseproductivity and reduce operating costs. You can relyon Flowserve Limitorque for extraordinary electric orfluid power actuated valve control.4A Comprehensive Range of Actuatorsand ControlsFlowserve Limitorque offers its customers acomplete menu of proven automation products: The unexcelled Limitorque range of heavy-dutyelectric actuators along with fluid power actuators,designed to meet the arduous demands of the oiland gas industry Excellent operating efficiencies for applicationsfrom control room performance sequencing andcontinuous process optimization to configurationfor ESD (emergency shutdown) and SIL-rated safetyrequirements A full suite of digital network protocols deliveringvisibility of diagnostics and configurations
flowserve.comLimitorque Electric ActuatorsLimitorque’s range of electric products leadsthe valve automation industry with innovativeproducts and state-of-the-art solutions. They areavailable for both multi-turn and quarter-turnoperation in the most demanding environmentalconditions, with non-intrusive designs offering afull complement of network controls and options,or basic intrusive actuation for simplified controlapplications.State-of-the-art, Non-intrusive ActuationThe Flowserve Limitorque QX quarter-turn and MXmulti-turn electronic valve actuators lead the industryin quality, safety and ease of use. Both models providethe user with predictable, reliable and safe operationplus extended service life, in the most rigorousapplications and extreme environments.Upon its introduction the MX includedinnovations that were “market firsts.” The latestMX and QX generations have improved on theseversions by adding: Non-intrusive design employing selectionknobs with solid state Hall-effect devicesinstead of electro-mechanical reed switches Non-contacting, optical and “system on achip” absolute encoders for accurate positionsensing Batteries-not-required design for the absoluteencoder to retain position data in the event ofloss of main power, thus eliminating the needfor costly battery maintenance programs orthe potential loss of equipment availability dueto battery failure BIST (BUILT-IN-SELF-TEST) absolute encodersincluding redundant position sensors andcomparator logic for increased reliability andsafety LimiGard technology featuring internal logicthat validates the bandwidth of incomingexternal commands to prevent actuatormalfunctions. LimiGard ensures a Fail/NoAction operation. Graphical display for access to operationaldata in 11 languages Optional Bluetooth wireless connectivity5
Limitorque Electric ActuatorsMX Multi-turn, Non-intrusive ActuatorFlowserve Limitorque introduced the MX electricactuator in 1997 as the first smart actuator providinguncompromised reliability and performance in an easyto-use design.The next generation MX improves on its market-firstinnovations: a unique absolute encoder that does notrequire battery backup; LimiGard technology; easy-touse menus in 11 languages; and the use of Hall-effectdevices to eliminate potentially troublesome reedswitches. Altogether, these enhancements providepredictable, reliable and safe operation in the mostextreme applications.The MX includes an absolute encoder with increasedspan, improved diagnostics capability and built-in selftest (BIST), which verifies and validates the integrity ofits components. The reliability of an absolute encoderalong with BIST is a major reason that the MX iscertified by exida Certification as capable for use in upto SIL 3 applications. No additional hardware is neededto make the MX SIL capable. Another MX feature, MXQuik, provides an uninterrupted power transfer optionduring main power losses. This further strengthensthe MX position as the only smart actuator with “nobatteries required.”HART protocol is now a communication optionto complement Modbus, Foundation Fieldbus H1,PROFIBUS DP V1 with redundancy, PROFIBUS PA andDeviceNet. Eleven languages are supported, includingEnglish, Spanish, French, Italian, German, Portuguese,Japanese (Katakana), Mandarin, Russian, Malay andTurkish. A Device Type Manager (DTM) is also availablefor Profibus, HART and Foundation Fieldbus.6The MX can be directly mounted to any risingor non-rising stem valve. When combined witha Limitorque WG or HBC series worm gearbox,it can be used to control butterfly, ball and plugvalves, as well as damper drives, flop gates orsimilar devices. MX actuators can also be coupledwith Limitorque V series bevel gearboxes or SRseries spur gearboxes for motorized operation ofmulti-turn valves when extended operating timesor reduced motor current requirementsare required.The MX uses synthetic oil lubrication, and issuitable for service in temperatures rangingfrom -60 C (-76 F) to 65 C (150 F). MX actuatorsare submersible to 15 m (49 ft) for 96 hours underthe IP68 standard and are certified for installationinto global hazardous environments by FactoryMutual, Canadian Standards Association ATEXand IECEx requirements.These features, along with an improved graphicaldot-matrix display, optional Bluetooth wirelessconnectivity and the Dashboard Software suite,truly make the MX the next generation in smartactuation.Max TorqueMax ThrustOutput ��200MX-1012517015 0006615–200MX-2022530525 00011115–200MX-4044059736 00016015–200MX-851225166250 00022222–170MX-1401700230775 00033322–170MX-1501500203675 000333165–200
flowserve.comLimitorque Electric ActuatorsQX Quarter-turn Actuator and QXM LimitedMulti-turn, Non-intrusive ActuatorsQXThe Flowserve Limitorque QX quarter-turn, smartelectronic valve actuator mimics the state-of-the-art,multi-turn MX actuator by including a unique absoluteencoder for tracking position without the use ofbatteries.The QX design provides enhanced safety and reduceddowntime through improved diagnostics, built-in selftest (BIST) features and LimiGard fault protection.The QX design builds on almost 20 years of experiencewith proven Limitorque MX technology — the firstgeneration, double-sealed electronic valve actuatorfrom Flowserve designed to provide control, easeof use and accuracy. The QX includes all the userpreferred features of the MX in a quarter-turn, smartactuator package.ActuatorModelMax TorqueOperating 20QXMThe industry-leading feature set of the QX hasbeen extended to a multi-turn version, the QXM.The QXM is available for up to 20 drive sleeveturns, with speed ranges from 6–24 RPM.When combined with faster speeds, the torqueranges are consistent with the speed requiredfor limited linear travel. All of the MX and QXfeatures are included in the QXM. An optionalA1 base can be attached to the QXM to acceptmulti-turn valve thrust. A linear base is alsoavailable for mounting to valves that requiremore precise process control. It is designed inconjunction with EN 15714, Electric Actuatorsfor Industrial Valves. The QXM has been testedto the Class D, continuous duty modulatingrequirements of EN 15714 and is capable ofmodulating up to 1800 starts per hour.Max TorqueMax ThrustOutput 02077916–5024Continued on next page7
Limitorque Electric ActuatorsQX Quarter-turn Actuator and QXM LimitedMulti-turn, Non-intrusive ActuatorsContinued from previous pageBrushless DC MotorsThe QX family of actuators was the first non-intrusiveactuator to employ advanced brushless DC motors.BLDC motors eliminate sparks, reduce mechanical andelectrical noise, and dissipate heat better than motorswith brushes. The brushless actuator design lastslonger than conventional motors and allows for moreaccurate positioning while permitting a global range ofvoltages (single-phase and three-phase ACV and DCV)to be connected without modification.Other features include a graphical dot-matrix displayallowing 180-degree rotation and supporting 11languages: English, Spanish, French, Italian, German,Portuguese, Japanese (Katakana), Mandarin, Russian,Malay and Turkish.8Optional Bluetooth wireless connectivity witha range up to 10 meters enables easy transferof diagnostic information to a PDA or laptopcomputer when used with Flowserve LimitorqueDashboard Windows -based software.Network communications such as Modbus,Foundation Fieldbus H1, DeviceNet, HART,Profibus DP V1 redundancy and Profibus PA offerthe user remote accessibility to a vast array ofstatus alarm and diagnostic data that is embeddedin the QX. A Device Type Manager (DTM) is alsoavailable for Profibus, HART and FoundationFieldbus.
flowserve.comLimitorque Electric ActuatorsLimitorque Intrusive Electric ActuatorsL120 Multi-turn ActuatorThe Flowserve Limitorque L120 series, with more than25 years of field-proven reliability, is a long-standingproduct of choice for any valve requiring either rotaryor linear actuation. Regardless of the valve design,the L120 performs consistently and predictably in anysituation demanding positive, dependable control.The L120 can be directly mounted to any risingor non-rising stem valve. When combined with aLimitorque WG or HBC series worm gearbox, it can beused to control butterfly, ball and plug valves, as wellas damper drives, flop gates or similar devices. Formotorized operation of multi-turn valves when extendedoperating times or reduced motor current requirementsare required, L120 actuators can be coupled withLimitorque V series bevel gearboxes or SR series spurgearboxes.The L120 is factory-lubricated, suitable forweatherproof service in temperatures rangingfrom -40 C (-40 F) to 65 C (150 F), as wellas explosion proof and temporary submersionapplications. Weatherproof enclosures meetNEMA 4 standards, as well as NEMA 6, IP67,and IP68 submersible standards. Explosionproofactuators meet Factory Mutual and CanadianStandards Association requirements.For high-speed or high-temperature applications, theL120-190, 420 and 800, covering thrust requirementsfrom 334 to 1112 kN (75 000 to 250 000 lb) and torquerequirements from 2584 to 10 846 Nm (1900 to8000 ft-lb), are available with spring compensationpackages for high-speed temperature applications.Basic integral control packages and the UEXelectronic control package with MX-stylefunctionality are also available. The UEX offersoptional digital communication boards for thefive supported network protocols available withthe MX and QX.Max TorqueMax ThrustOutput SpeedActuatorModelft-lbNmlbkNRPML120-1010013610 0004510–250L120-2020027220 0009010–250L120-4040054430 00013520–250L120-85850115645 00020320–192L120-1901900258475 00033820–196L120-42042005712140 00063016–196L120-800800010 880250 000112510–168L120-200020 00027 200500 000225010–609
Limitorque Electric ActuatorsSMB Multi-turn ActuatorWith more than 50 years of proven performance andreliability, the eight models in the Flowserve LimitorqueSMB series offer rugged dependability from thesmaller SMB-000 through the industry’s largestelectric valve actuator, the SMB-5XT. An extensivegearing selection for each actuator size deliversunmatched versatility for meeting exacting operatingspeed requirements. Three-phase, single-phase,pneumatic and DC motors are available to meet wideranges of power and speed. Optional controls includean integral reversing starter and control voltagetransformer package, an actuator-mounted controlstation, and position indication feedback.The SMB is well suited to applications involving gateand globe valves, sluice gates and other applicationswhere long-term, uncompromised, reliable operationis critical. Fully qualified for use in nuclear powergenerating plants, the SMB is the recognized veteran ofthe nuclear power industry. The SB, a high-speed, hightemperature version of the SMB, is also available. TheSMB, when coupled to the V or SR series gearboxesfor multi-turn applications, or with the HBC or WG forquarter-turn valve applications, can be counted on toprovide long-lasting performance.Actuator Model10For critical and/or severe service, the decadeslong history of reliable and dependableperformance clearly demonstrates the lastingvalue of SMB and SB actuators.The more severe the service, the more ruggedthe electric actuator required to withstand andreliably work in that environment. The SMB hasa long-standing and well known reputation forperformance in harsh environments like thosein refinery coker units. The SMB has decades ofproven performance in these types of difficultapplications.Max TorqueMax ThrustOutput 00026035314 0006210–250SMB-00070094924 00010710–250SMB-11100149145 00020010–250SMB-21950264470 00031110–250SMB-342005694140 00062310–250SMB-4830011 253250 000111210–250SMB-520 00027 116500 000222412–55SMB-5XT60 00081 350N/AN/A12–55
flowserve.comLimitorque Electric ActuatorsLimitorque Compact Electric Actuator(CEA) SeriesFlowserve Limitorque now offers the CEA electricactuator, which brings new levels of performance andreliability when automating small- to medium-sizedvalves. The CEA features a multitude of user benefitswhich are combined in one unit to provide a genuinebreakthrough in capability for compact, single-phaseACV (to 250 V) or 24–48 DCV electric actuators.Designed for on/off or modulating duty, the CEA isideally suited for numerous applications, includingchemical and water/wastewater treatment industries.Use of intelligent technologies, the range of valveapplications and extended service life mean that, forthe first time, industrial OEMs and end users specifyingsingle-phase electric actuators can now benefit fromenhanced cycle performance and advanced diagnosticcapabilities. It is available in seven torque sizes from17 Nm to 1695 Nm (1500 to 15 000 in-lb).Max TorqueOperating Timein-lbNmSeconds15 00016955–10The CEA is equipped with an absolute encoderpatterned after the QX encoder, sensing valveposition to less than 1.0% in some applications.Valve torque is sensed from motor current,providing a tried and true method of torquecontrol similar to the method use in the QX. TheCEA is available for modulating control and canbe outfitted with a full suite of network protocols.11
GearboxesLimitorque Worm Gear, BevelGear and Spur GearboxesWG Worm GearboxesWG gearboxes are designed to meet the performancerequirements and environmental challenges formanual and motorized applications. When combinedwith Limitorque electric actuators such as the MX,L120 or SMB, the WG quarter-turn, 90-degree andmulti-turn, 360-degree gearboxes provide the userwith dependable, efficient and economical solutionsfor valve and damper applications. T
The Flowserve Limitorque QX quarter-turn and MX multi-turn electronic valve actuators lead the industry in quality, safety and ease of use. Both models provide the user with predictable, reliable and safe operation plus extended service life, in the most rigorous applications and extreme environments. Limitorque Electric Actuators
Flowserve Limitorque is a global leader in quality manufacturing. All Limitorque plants are certified to ISO 9001 standards, the recognized benchmark for quality all over the world. The same unexcelled use of certified materials is found in the QX as in Limitorque’s naval and nuclear-qualified electric actuators. The MX has used
VA Series Valve: Cv 0.75 VG Series Valve: Cv 2.0 Low Actuation Pressure Range 60 psig / 4.1 bar Maximum Actuation Pressure VA Series Valve: 125 psig / 8.6 bar VG Series Valve: 150 psig / 10.3 bar Actuation Times with 80 psig / 5.5 bar Actuation Pressure VA Series Valve: 50 milliseconds VG Series Valve: 75 milliseconds MEDIA CONTACT .
Limitorque is an operating unit of Flowserve, a 4 billion-plus/year company strongly focused on automation and support of the valve industry. Flowserve is the world's premier provider of flow management services. Limitorque has evolved over 80 years since its strategic introduction of a "torque-limiting" design that changed an industry.
the flow rate and pressure. To select the correct valve to fulfill these functions properly, an outline of the different types of valves and their features is given below. Butterfly valve Butterfly valve and globe valve Butterfly valve and ball valve Butterfly valve and gate valve Check valve Gate valve Globe valve Ball valve Valve shaped like a
L120 Installation & Maintenance Manual 120-11000 Revision E September 2002 1-1 Flow Control Division Limitorque Actuation Systems 1 Introduction 1.1 Purpose This Installation and Maintenance Manual explains how to install and maintain the L120-10, L120-20, and L120-40 actuators.
9 Hex Nut Carbon Steel Spring Rod 10 End Flange Carbon Steel Spring 11 Guide Ring PTFE Graphite 12 O-Ring NBR 13 Split collar Alloy steel. LHS Standard aterials of Construction. Hex Nut 15 O-Ring. Anatomy of Limitorque LDG Actuator. The LDG range of Limitorque Gas Powered actuators is a robust, modular Scotch yoke design, available in both
G- Autoflow Valve 2.0 GPM H- Autoflow Valve 2.5 GPM I- Autoflow Valve 2.8 GPM J- Autoflow Valve 3.0 GPM K- Autoflow Valve 3.3 GPM L- Autoflow Valve 3.5 GPM M- Autoflow Valve 4.0 GPM N- Autoflow Valve 4.5 GPM O- Autoflow Valve 5.0 GPM P- Autoflow Valve 5.5 GPM Q- Autoflow Valve 6.0 GPM R- Autoflow Valve
to the entire field of artificial intelligence. Humans, it seems, know things and do reasoning. Knowledge and reasoning are also important for artificial agents because they enable successful behaviors that would be very hard to achieve otherwise. We have seen that knowledge of action outcomes enables problem-solving agents to perform well in complex environments. A reflex agents could onl
