GE Severe Service Valves masoneilan vlog trim Brochure
Contents
1. on investment High rangeability satisfies varying process demands The two valves in one approach reduces life cycle maintenance costs Performance reliability of integrated smart engineered control solutions results in faster startups and accelerated time to revenue Trim integrity and reliability minimizes maintenance and overall life cycle costs Diagnostic information enables preventive maintenance and provides substantial life cycle cost savings due to less process downtime Reliable tight shutoff minimizes loss of revenue generating process fluid steam natural gas etc GE s Masoneilan V LOG Energy Management Trim for Severe Service Applications 5 Typical V LOG Trim Applications Liquified Natural Gas V LOG trim technology can be applied throughout the entire Liquefied Natural Gas LNG process From the gas production and receiving stage through the compression and processing stages V LOG trim technology can help keep the plant running in a stable and continuous mode of operation In addition fast and precise control with actuator stroke speeds measured in milliseconds makes V LOG trim suitable for compressor surge control With expanded outlets extension bonnets and energy management trim V LOG trim technology often is a solution for the high fluid energy applications in LNG liquefaction and re gasification processes Vent to Flare As an LNG train comes online it is essential to achie2. Diagram for Methane Single Stage Valve The 49000 series with V LOG trim is capable of bidirectional operation making it well suited for gas injection and withdrawal Furthermore V LOG trim can be characterized to effectively manage both storage and withdrawal operations this capability offers savings by limiting the number of valves and complexity of the control scheme During the non peak season gas travels through valving with a small pressure drop and a very large Cy to fill the storage area As the gas is later withdrawn from storage it flows with a high pressure drop and a low Cy A Better Fit solution for this application is a combination trim V LOG trim at low lift and drilled hole or ported cage at high lift Similar design principles are applied for wellhead reinjection applications making the NACE compliant 49000 Series an ideal fit for performance and control Constant Pau Lure Har Al bal ba eye Curv Raiden Kj Yali Maps Fri SL i Drop T amp E Diagram for Methane Multi Stage V LOG Valve GE s Masoneilan V LOG Energy Management Trim for Severe Service Applications 9 Typical V LOG Trim Applications Power Generation Power plants are home to a variety of severe service control valve applications with high pressure drop ratios that may result in excessive levels of noise and vibration Older power plants were outfitted with available severe service technology namely drilled hole cage valve
3. and liquefied natural gas LNG These industries present many of the toughest control valve applications particularly those involving large mass flow rate and high differential pressure such as compressor anti surge high pressure vents and turbine bypass Severe service applications present technical challenges associated with the high energy of the flow stream V LOG Energy Management trim meets these challenges including the energy related issues of noise and vibration and stringent demands for control performance Benefiting from a very scalable trim design architecture V LOG trim offers a customized solution for a broad set of severe compressible fluid and liquid applications Each V LOG trim solution is designed to meet customer requirements including tight shutoff fast opening speeds operational Stability and precision control over a wide range of operating conditions V LOG Trim Stack Energy Management Principles 3 Dimensional Tortuous Path Flow The three dimensional tortuous path design of GE Oil amp Gas Masoneilan V LOG trim controls pressure reduction through the management of process fluid energy This is accomplished by directing the fluid through discrete flow channels which alternate across two adjacent planes to create a labyrinth effect These flow channels contain multiple stages defined by 90 degree turns with intermediate contractions and expansions in the flow path Staged Pressure Drop The
4. flare stack Long lasting tight shutoff is essential in turbine bypass and compressor surge applications to help protect critical equipment To promote overall long term trim integrity V LOG trim technology takes full advantage of hardened materials such as stellite and tungsten carbide 49000 Series with V LOG Trim Stack 4 GE Oil amp Gas Features e 3 D Tortuous Path Patented Flow Contractions Multiple Stages Exit Flow Jet Spacing Expanded Outlet e Laser Cut Disk e Precision Alignment e Flow Channel Characterization e Trim Technology Combinations e GE s Masoneilan SVI II AP Valve Positioner Sensitivity and Accuracy e ValVue OVD Online Valve Diagnostics e Maximum Brazing Surface e Seating Geometry and Materials Hardened Trim Materials SVI II AP Valve Positioner Diagnostics Benefits Efficient scalable solution for high pressure drop applications Trim technology can be packaged in a variety of valve sizes and designs to offer the cost benefit of standardization and the reduced downtime associated with easy retrofit Minimum system noise and vibration results in longer product life lower life cycle maintenance costs and reduced risk of critical equipment downtime Trim integrity yields high control resolution and unequaled control accuracy for optimum process efficiency Exceptional digital positioner control performance offers higher yield of on spec product for maximized return
5. of pressure drops Because of the wide range of pressure drop ratios no one valve or trim design is best suited to serve all possible variations of soot blower and auxiliary steam process applications Depending on the severity of the application globe or forged bodies single stage drilled hole cages Lo dB Trim or V LOG trims may be applied 10 GE Oil amp Gas GE s cost effective valve and trim solutions for high pressure steam include e 21000 Cast globe or angle control valve to ANSI 2500 with single or double stage Lo dB trim e 49000 Cast globe or angle control valve to ANSI 2500 with single or double stage Lo dB and V LOG trim e SE 20 Forged globe or angle control valve ANSI 4500 with single or double stage Lo dB and V LOG trim Liquid V LOG Trim Technology Liquid V LOG labyrinth trim technology is offered in many high turndown liquid applications where special trim characterization is required to meet the full range of operating conditions Within a liquid V LOG trim stack each 90 degree turn in flow direction acts as a step reduction in pressure simulating the gradual pressure reduction effect caused by head loss through a long radius pipe elbow The gradual pressure reduction produces less pressure recovery per stage thus eliminating the potential for cavitation A comparison between one step and gradual multistep pressure reduction solutions is shown in Figures 1 amp 2 The direct pressure reduc
6. 904 9000 33 1 4904 9010 49 2102 108 0 49 2102 108 111 91 22 8354790 91 22 8354791 91 11 2 6164175 91 11 5 1659635 ITALY Phone 39 081 7892 111 Fax 39 081 7892 208 JAPAN Chiba Phone 81 43 297 9222 Fax 81 43 299 1115 KOREA Phone 82 2 22 74 0748 Fax 82 2 2274 0794 MALAYSIA Phone 60 3 2161 0322 Fax 60 3 21635 6312 MEXICO Phone 52 55 5640 5060 THE NETHERLANDS Phone 0031 15 3808666 Fax 0031 18 1641438 RUSSIA Veliky Novgorod Phone 8162 55 7898 Fax 7 8162 55 7921 Moscow Phone 7 495 585 1276 Fax 7 495 585 1279 SAUDI ARABIA Phone 966 3 341 0278 Fax 966 3 341 7624 SINGAPORE Phone 65 6861 6100 Fax 65 6861 7172 SOUTH AFRICA Phone 27 11 452 1550 Fax 27 11 452 6542 SOUTH amp CENTRAL AMERICA AND THE CARIBBEAN Phone 55 12 2134 1201 Fax 55 12 2134 1238 SPAIN Phone 34 93 652 6430 Fax 34 93 652 6444 UNITED ARAB EMIRATES Phone 971 4 8991 777 Fax 971 4 8991 778 UNITED KINGDOM Wooburn Green Phone 44 1628 536300 Fax 44 1628 536319 UNITED STATES Massachusetts Phone 1 508 586 4600 Fax 1 508 427 8971 Corpus Christi Texas Phone 1 361 881 8182 Fax 1 361 881 8246 Deer Park Texas Phone 1 281 884 1000 Fax 1 281 884 1010 Houston Texas Phone 1 281 671 1640 Fax 1 281 671 1735 Masoneilan V LOG Lo dB LincolnLog SVI FVP ValVue ValvKeep and SteamForm are registered trademarks of the General Electric Com
7. GE Oil amp Gas Masonetlan Products V LOG Energy Management Trim Integrated smart engineered solutions for severe service applications e Scalable trim design e Operational stability e Precision control l a __ g z _ a i g D S a a A gt 8 gt a e E 5 E R ineme V LOG Trim Technology GE Oil amp Gas offers a broad portfolio of Masoneilan products consisting of general service and severe service control valves actuators pressure regulators and valve mounted smart instrumentation and accessories all supported by an integrated network of sales offices The breadth of our offerings enables us to help customers meet the demanding requirements of process control applications Masoneilan valve solutions which include leading designs such as the LincolnLog liquid letdown control valve range from regulators to customized solutions including the patented V LOG labyrinth trim technology We offer custom tailored solutions configured for control performance shut off reliability and life cycle cost effectiveness Leading product technology coupled with application expertise are the keys to our ability to meet customers specifications Cost Effective Engineered Solutions We offer leading microprocessor based field instrumentation technology Award winning HART communicati
8. arated into discrete flow jets upon exiting the V LOG trim channels The proper sizing and spacing of these channels prevents the exiting flow jets from reconverging thus producing lower amplitude sound waves with higher peak frequencies These lower sound pressure and higher frequency waves result in lower acoustical coincidence with the surrounding system and downstream piping This reduces both the overall noise level and vibration effect of the throttling process Overall System Noise Reduction As a gas experiences a large reduction in pressure its volume expands This phenomenon will yield a higher downstream velocity if the piping is configured without considering this volumetric expansion Our angle body valve designs feature expanded outlet areas to accommodate this expansion and minimize the overall system noise level we consider both Outlet Mach Number and the Outlet Expansion Ratio for system noise calculation per the IEC International Noise Prediction Standard IEC 60534 8 3 GE s Masoneilan V LOG Energy Management Trim for Severe Service Applications 3 V LOG Trim Features amp Benefits Laser Cut Technology The V LOG trim s disks are laser cut resulting in the tight tolerances and smooth surfaces which are required for throttling control Precision trim part cutting supports throttling area integrity that is necessary for fine control resolution and accuracy Prior to being secured through vacuum tight b
9. im for ease of maintenance e Precision control using GE s Masoneilan SVI Il AP Valve Positioner High turndown characterized trim Multi stage anti cavitation V LOG trim at low lift for high resistance Drilled hole or ported cage at full opening for high capacity 49000 Series Globe Control Valve GE Oil amp Gas Masoneilan 84000 Series SteamForm steam conditioning control valve uses patented desuperheating technology to meet the demands of turbine bypass e Expanded outlet to accommodate the change in steam density and minimize valve outlet noise Low noise V LOG trim to reduce the pressure across stages e Class IV Class V and MSS SP 61 tight shutoff Fast stoking actuation package to prevent safety valves from lifting 84000 Series SteamForm Steam Conditioning Control Valve GE s Masoneilan V LOG Energy Management Trim for Severe Service Applications 11 AUSTRALIA Brisbane Phone Fax Perth Phone Fax Melbourne Phone Fax BELGIUM Phone Fax BRAZIL Phone Fax CHINA Phone Fax FRANCE Courbevoie Phone Fax GERMANY Ratingen Phone Fax INDIA Mumbai Phone Fax New Delhi Phone Fax DIRECT SALES OFFICE LOCATIONS 61 7 3001 4319 61 7 3001 4399 61 8 6595 7018 61 8 6595 7299 61 3 8807 6002 61 3 8807 6577 32 2 344 0970 32 2 344 1123 55 11 2146 3600 55 11 2146 3610 86 10 5689 3600 86 10 5689 3800 33 1 4
10. labyrinth flow path of the V LOG trim subjects the gas to a high level of friction as it is redirected through each turn in the flow path V LOG trim s patented flow contractions produce predictable and repeatable flow resistance that differentiates its design and performance from competing products The V LOG trim s design offers a unique flow path shape which maximizes valve efficiency and performance versus more traditional tortuous path trim technologies The enhanced flow geometry of the V LOG trim creates a series of kinetic energy losses followed by partial energy recoveries at each stage The staged reduction of the fluid pressure makes the gradual letdown process highly effective for noise attenuation The V LOG Trim s Labyrinth Flow Path Fluid Velocity Control Each stage of the V LOG trim is designed with an expansion in flow area which is essential for managing fluid velocity that would otherwise increase as the pressure is reduced across each stage The expanding area can compensate for the volumetric expansion of the gas reducing any increase in the kinetic energy as the pressure is reduced Trim velocity control is important for maintaining low aerodynamic noise levels within the valve body and trim High velocity trim exit flow will yield high magnitude sound waves which lead to valve body vibration in high pressure letdown applications Exit Flow Jet Spacing By design the process fluid is precisely sep
11. m for Severe Service Applications 7 Typical V LOG Trim Applications Gas Production Oil and gas applications often involve extremely erosive flow streams which dictate the proper trim design and material selection Many hardened materials including full tungsten carbide trim in extreme cases are used as a rugged barrier on critical surfaces for extended protection against entrained particles traveling within the flow stream V LOG trim technology is well suited for the challenges of highly erosive service Stellite or equivalent clad guiding for corrosion and vibration resistance Trim integrity extends valve life and minimizes life cycle costs Inconel clad valve bodies offer long lasting reliability Tungsten carbide trim and seat help protect against wear Wellhead choke applications often are an ideal use for V LOG trim technology These valves are available as both ANSI or API rated designs with enlarged and expanding flow orifices to reduce blockage caused from loose debris picked up from the inside of the well When enhanced with the hardness and ruggedness of tungsten carbide disks V LOG labyrinth trim yields extended life in these typically high wear applications A compact valve package can be a big benefit in offshore production facilities V LOG trim can be fitted into a lightweight globe or angle style body for easy installation We also offer a range of actuation options including a very compact self co
12. ng SVI and FVP digital positioners help improve your asset s effectiveness resulting in higher returns on investment By using patented tuning algorithms that optimize valve control performance our digital positioners deliver improved process yields and lower maintenance cost Flexibility is built into each of GE Oil amp Gas digital instrumentation offerings SVI II AP and FVP valve positioners mount on any control valve actuator and interface effectively with HART and Foundation Fieldbus distributed control schemes respectively since SVI is only Hart and FVP is only EEI You can further increase flexibility and functionality with GE s smart instrument companion software such as ValVue a tool that monitors real time device status In addition ValvKeep valve database management and AMS Snap on asset management software provide a comprehensive view into valve asset maintenance history and performance trends These software support tools in conjunction with the advanced diagnostic capabilities of smart devices help significantly reduce operating costs 2 GE Oil amp Gas Innovative V LOG Design Our valve design innovation is at the foundation of our extensive portfolio of field proven severe service products configured for the most challenging applications GE Oil amp Gas Masoneilan products have long been benchmarks for severe service innovation in industries such as power generation oil and gas production
13. ntained electro hydraulic option that is ideal for tight installations between platform decks as well as a wide range of packing designs to reduce the release of fugitive emissions in sour applications 8 GE Oil amp Gas SE 20 Forged Body Control Valve 49000 Series with V LOG Trim in a Gas Storage Field Gas Storage amp Well Re Injection Gas delivery companies can quickly run out of capacity during peak seasons due to spikes in demand To limit the risk of interrupted supply gas reserves are typically stockpiled in underground salt caverns mines aquifers depleted reservoirs and other natural storage facilities Natural gas is compressed for delivery to these storage areas This process is regulated by control valves which must also limit the formation of hydrates or fluid icing that can block small flow passages To prevent this icing formation gas companies must invest in large and expensive heaters to elevate and maintain the gas temperature above the hydrate level unless they use multi stage V LOG trim technology By reducing gas pressure gradually across a smooth and controlled process V LOG trim keeps gas temperature above the hydrate level without the assistance of additional heaters When peak season arrives these storage reservoirs must be depleted to return gas to the pipelines for distribution Lonsianl Presser Cure Bar A Ce Bil Enthal pre ry i IK gfdeg K T amp E
14. ology is configured to manage and control process fluid energy over this wide range of operation This involves characterizing the trim design to match the characteristic of the feedwater pump s operating curve with the low travel range to include multiple stages of anti cavitation stacked disk while drilled holes on the high range of travel provide for the large flow capacities required Turbine Bypass Systems Steam turbine generators create power by passing high pressure steam through a series of stages that propel the turbine blades at high speeds At high pressure drop ratios the turbine design is a very effective model for the multi stage pressure letdown process During startup or upset conditions the turbine bypass system Is used to divert steam around the turbine which maintains stability in the closed loop system For high pressure bypass the V LOG trim follows the same principles of pressure letdown as the steam turbine i e letdown across multiple stages of expanding area to reduce damage resulting from sudden and severe pressure reduction The V LOG trim is ideal for supercritical and conventional power applications where there is no reheat section in the boiler Both of these applications take steam at very high pressure down to condenser Regardless of whether the bypass system involves desuperheating or not V LOG trim technology can be integrated into the right valve solution 49000 Series with quick change tr
15. pany Other company names and product names used in this document are the registered trademarks or trademarks of their respective owners 2014 General Electric Company All rights reserved GEA19359A 07 2014 Formerly Masoneilan BP49000 72000 0611
16. razing the V LOG trim s disks are stacked together and aligned using precision tooling Each disk is designed with maximum surface area to promote a secure bond between disks during the brazing process Customized Flow Characterization The laser manufacturing process gives each disk in the V LOG trim the necessary geometry to provide desired control In addition the V LOG trim s stack can be configured with tiered capacities in each disk to produce specific flow characteristic across the entire range of travel For example the stack design may be configured with a highly resistant flow path up to 40 stages at low lift and then progressively less resistant flow paths as the valve opens to its full capacity Some designs may also combine V LOG trim s stacked disk technology with drilled hole or ported cage technology These combination trim configurations offer rangeability with excellent control This is especially important for applications requiring the control valve to throttle during plant startup and at full load production Tight Shutoff The full line of GE s Masoneilan V LOG trim products achieve tight shutoff through seating surface geometry and material selection Shutoff performance consistent with ANSI FCI Class IV and Class V leakage as well as MSS SP 61 is available Tight shutoff performance is critical for preventing product loss especially in applications that vent to atmosphere or burn off in a
17. rge package offers reliability for not The technology offered with the low vibration V LOG trim only LNG plant operation but all compressor applications combined with the precision control and fast response of The V LOG Trim manages the fluid energy as pressure is the SVI II AP valve positioner offer the security needed for drastically reduced across as many as 40 stages while the this critical service application Coupling this technology with valve is fully stroked in as little as a half second ValVue OVD Online Valve Diagnostics for real time asset management helps to protect your system 49000 Series Severe Service Increases efficiency Control Valve Class V and MSS SP 61 tight by reducing leakage shutoff to latter stages of the compressor system Prevents the compressor from going into a surge Fast response less than one l P which prevents down second time and increases production SVI II AP precision positioning and quick response 1 3 Increases profitability by seconds through complete reducing wasted process range of travel during recycle energy operation Reduces initial cost by High turndown characterized allowing single valve V LOG trim control over the entire range of operation Reduces the pressure drop across multiple Low noise V LOG trim stages which lessens noise vibration and maintenance cost 72000 Series Severe Service Control Valve GE s Masoneilan V LOG Energy Management Tri
18. tion scheme Figure 1 results in a single dramatic pressure drop and recovery which can lead to cavitation if the initial drop falls below the fluid vapor pressure In contrast the high flow resistance of V LOG trim tortuous path trim creates a multi step pressure drop profile similar to that shown in Figure 2 By managing the energy throughout the pressure reduction process V LOG trim technology can address cavitation problems at the source ENERGY PROFILE single Stage Valve Trim Ton Figure 2 10 Stage Pressure Reduction Figure 1 Single Stage Pressure Reduction Boiler Feedwater Start up and Regulator Valves Conventional power plants often are designed with feedwater systems using two separate control valves The first control valve is used for startup as the conditions yield a low amount of flow with severe pressure drop This startup condition exhibits high cavitation risk and requires a very rugged valve solution Typically a second control valve is used to regulate the feedwater conditions when the plant operates at full capacity This valve experiences a much higher flow rate but across a very moderate pressure drop This main feedwater regulator valve does not experience cavitation In many of today s power plants specifically the combined cycle plants engineers often prefer to combine these two valves into a single control valve to make maintenance easy and the control scheme simple Liquid V LOG trim techn
19. trim In many of the most severe applications this trim technology only lessened the noise or vibration problem Using the latest control valve technology V LOG trim can help eliminate the problems associated with the most demanding services in both new and old power plant designs Today GE s Masoneilan Lo dB or V LOG trim technology is helping to solve noise and vibration problems in the most demanding applications Vent to Atmosphere Similar to the Vent to Flare application the Vent to Atmosphere valve must contend with the problems of high pressure high noise and gas expansion In most vent applications the process pressure is so extreme that conventional drilled hole cage control valves are not suitable Reduces noise through staged pressure reduction and minimizes velocity e Large valve body gallery minimizes trim exit velocity e Expanded valve outlet accommodates the volumetric expansion of steam e V LOG trim reduces the high pressure drop across multiple stages GE Oil amp Gas engineered solution for this application is the Masoneilan 72000 Series control valve with V LOG trim in series with a downstream silencer The 72000 series valve is a rugged reliable solution that reduces inherent problems extends valve life and minimizes costly process downtime Soot Blower amp Auxiliary Steam Depending on the power plant design soot blower and auxiliary steam process applications can exhibit a wide range
20. ve a stable and controllable gas flow before the gas is passed into the separators strippers compressors and other critical process equipment The gas flow is passed through a vent to flare valve until the unit reaches the desired level of capacity 72000 Series Severe Service Control Valve GE s Masoneilan 72000 series is available with single or double stage Lo dB trim as well as V LOG trim i Reliable gas venting in less Protects costly downstream for higher pressure drop applications These valves than one second equipment and reduces downtime are available with a number of different instrument packages to meet various specifications including a Class V and MSS SP 61 tight Grows revenue by preventing loss fast stroke of one second or less or precise control shutoff of process flow with resolution to 1 10 000th of an inch Lo dB and V LOG trims Reduces noise through staged reduce the pressure drop pressure reduction and minimizes across multiple stages velocity 6 GE Oil amp Gas Compressor Recycle amp Anti Surge To achieve maximum efficiency compressors are challenged GE Oil amp Gas Masoneilan 49000 Series and 72000 Series to operate as close as possible to their surge limits The risk control valves are available with several features that help of control loop instability is magnified with reduced surge meet the demands of these severe service applications operating margins Our compressor anti su
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