Control Valves for General Applications

1 Control Valves for General Applications CCI Control Valves for General Applications The series 840 cage-guided valve is specially designed using recent advancements in Control valve technology. It is used to Control a wide variety of relatively clean liquids and gases at high pressure differentials. Configured with either flow-to-open or flow-to-close trims, the valve is well suited for steam, gas or liquids, where flow-to-close is typically used for liquid service and flow-to-open for steam and gas. The series 840 valve is flexible, allowing a variety of trim types to be installed in the body.

2 In addition, its cage-guided construction reduces plug vibration and provides stable performance throughout travel. All 840 trims have a quick change design to guarantee convenient repair and easy trim design of the 840H (drilled-hole-cage) valve is primarily used for severe service Applications requiring anti-cavitation or low- noise trim. In most cases, high pressure drop in process conditions may cause erosion, noise or vibration , which can affect process Control . The 840H is a good solution to this severe flanged body design is configured to meet ISA face-to-face dimensions.

3 Weld end body configurations are available with socket weld ends through 2 size and buttweld ends through 16 .The CCI MSD-II spring-diaphragm actuator is standard for this product and is pre-selected by valve size. Built in reverse (spring close) or direct (spring open) acting configurations, this unit provides Control and seat loading in line with industry values. Refer to the CCI MSD-II actuator catalog for more detailed information. Standard materials allow compliance with NACE MR0175 and are also suitable for power plant and refinery Applications . The soft seat option meets FCI 70-2 Class VI seat s 840G/840H delivers superior Control performance and reliabilityFigure 1.

4 840G Typical valve with diaphragm and handwheel or manual shutoffeziSevlaV"02hguorht"1sgnitaR)elba liavaSIJdnaNID(0052-051ssalCISNA2elbaTsn oitcennoCdnE)WSdnaWB(sdnEdleW,egnalFecaF desiaRslairetaM1elbaTerutarepmeT3elbaTno itaziretcarahCwolFnoitacilpparuoytiusote gatnecreplauqenoraeniLtneiciffeoCwolF4el baTegakaeLtaeSIVroVssalCISNA-noitpO,VIss alCISNA dradnatSsnoisnemiD6dna5selbaTmirT-delirD ,egaC-wodniW,troPelgniS(mirTegnahCkciuQ) egaC-eloHSpecificationsCCI Control Valves for General Applications 3 Table 1: MaterialstraPlairetaM&ydoBtennoBsselniat S,leetSnobraC,lenoM,leetSyollA,leetS,02y ollA,C/ByolletsaH,eznorB-lA,eznorB,muina tiTrehtO,lekciNxelpuDlairetaMdegroF,gnit saCmirT,SS014,02A,L613,SS613,C/Byolletsa H,30813 SNU,lenoM,HP4-71,eznorB-lA,yollA-iNmuina tiTteksaGSS613ro403:dnuoWlaripSliofarG,n olfeThtiwtfoS,liofarG,nolfeT:talFsretliF ecnalaBlaeS,MDPE,EFTdelliFssalG,lenocnI, etihparG,notiVnobraCgnikcaP,nolfeTdelliF ssalG,EFT-VlaeSswolleB,etihparGWide choice of design and material meet wide application requirementsWide ApplicationPower: NPP, TPP, CCPP, Co-Gen, DHOil & Gas.

5 Onshore, Offshore, RefineryPetro-chem: NCC, Ethylene, BTX, PS, SM, VCM, PVC, LDPE, HDPEFine-Chem: HCL, H2SO4, NHO3, Acetit Acid, PTA, AN, NH3, Pulp & PaperChemical: Dyes, Cosmetics, CaprolaktamCryogenic: LNG Table 2: Range of Supply: Series 840 Valve End Connections: RF, RTJ, BW (if required, SW connections can be supplied in sizes marked with*)evlaVeziSsgnitaRssalCISNA051#003#0 06#009#0051#0052#"1~**"2/11**"2**"3"4"6" 8"01"21"61~"41"02~"81 CCI Control Valves for General Applications 4 Series 840 Valve FeaturesQuick Change TrimAll internal parts can be inspected easily by removing bonnet and cageFail ModeFail-to-close on loss of air is standard.

6 Fail-to-open on loss of air is also availableDiaphragm, piston, hydraulic, and electric actuation is availableRolling Diaphragm ActuatorRolling diaphragm design minimizes variance of effective pressure area and increases accuracyMulti-springMulti-spring design allows very low hysteresis and dead bandProven Trim DesignSingle P-port, multi-step, V-notch type cageAccessoriesAll types are available to meet requirementsValve Performance Characteristics (% Cv vs. % Stroke) Valves are custom characterized to accommodate a wide range of Equal PercentageEqual PercentageCCI Control Valves for General Applications 5 All the benefits of CCI s proven technology combined with a full compliment of featuresFeatures Simple to change capacity and characteristics: A simple cage change is all that is required to change between reduced and full-sized capacity trims or between linear and equal percentage characteristics.

7 Tight shutoff: A variety of shutoff classes from ANSI IV through VI are available to meet application requirements. Sour gas/corrosive fluid capable: The wide choice of body and trim materials allows the series 840 Valves to be applied to corrosive/sour gas services with full compliance to NACE requirements. Easy maintenance: Top-entry design and a cage-retained seat ring allow for quick inspection or trim 3: Temperature Range Series 840 ValvesevlaVmirTISNA ssalCtaeSepyTepyTtennoBtaeSegakaeLdradna tSdednetxE"4~"2/1051#hguorht009#tfoS~C03 -C032~C691-C032IV051#hguorht0052#lateM~C 03-C003~C691-C565V,VI"02~"6051#hguorht00 6#tfoS~C03-C032~C691-C032IV051#hguorht00 52#lateM~C03-C003~C691-C565V,VIFor more detail of models, please contact your authorized CCI ,ediuGegaC068elgnAHegaCeloHdellirD038yaW 3T)

8 GnixiM,gnitreviD(yaW3008ebolGereveSDGARD dradnatS SBTssapyBenibruTSeries 840 Valves Model ClassificationCCI Control Valves for General Applications Quick Change TrimUnbalanced Design, Multi-step, (Cascade) Trim, EQ%Quick Change TrimCage Guide Design, Balanced Trim, Metal/Soft SeatFigure 2: Quick Change TrimQuick Change Trim Quick Change Trim is now a popular and basic requirement for all types of Control Valves . According to the Practical Guide to Control Valves edited by Instrument Society of America (ISA), Valve Trim shall be of the Quick Change type for ease of maintenance, no internal components shall be screwed or welded into the valve bodies or bonnets.)

9 Trim shall be designed to provide equal pressurization around the plug in order to minimize vibration and prevent any potential problem from binding. Series 840 valve quick change trim for ease of maintenance6 CCI Control Valves for General Applications Drilled-Hole-Cage/ 840 HThe 840H Drilled-Hole-Cage trim provides proven performance in high pressure drop Applications without cavitation, noise , erosion and vibration common problems associated with General trim design. The Drilled-Hole-Cage trim design is suitable for most pressure drop services except very severe services with very high pressure drop.

10 Anti-CavitationCavitation occurs in liquid process when local pressure fluctuations near the liquid vapor pressure result in the sudden growth and collapse of vapor bubbles (cavities) in downstream liquid. Cavitation often produces high levels of noise and vibration in the system. To avoid this cavitation problem, the right number of multi-stage and multi-path trim design should be mass flow and/or pressure drop in compressible fluids like gas or steam is a major source of noise and accompanies vibration in the system. The right source treatment depends on the right multi-path, multi-stage trim.