Tufline Sleeved Plug Valves - Superiorvalves

1 Tufline SleevedPlug Valves2 Design more economical, flexible, and compact fluid handling systems. Bi-directional flow, simple actuation, lightweight, compact design,and multiport configurations all facilitate improved system design. Superior, longer-lasting in-line sealing. The inert PTFE sleeve completely surrounds the plug. Thesleeve provides a large, circumferential sealing surface from portto port. Open, closed, or rotating, the seal is assured. No ball orgate valve can match this sealing power. Secure sealing with no cold-flow, deformation, orrotation of the sleeve. The sleeve is securely nestled in the valve body. High pressureribs, top and bottom retention, and 360 port lips all assuresleeve containment. No seizing. No sticking. As the plug rotates, the 360 port lips provide a self-cleaningaction to remove scaling and adhering / Contents 2-4 Unique and patented features5 Multiport Valves 6-11 Special application configurations 12 Pressure-temperature ratings 13 Cv factors, dimen-sions, and weights Page / Contents 16 Manual operators and actuators 17 Actuator mounting hole configurations 18 Quick reference selection table 19 How to order High Pressure sealing ribsTop retention of sleeve Sleeve relief area No cavities.

2 No contamination. There are no body cavities where flowmedia can accumulate and contaminatefuture processing. This cavity-freedesign also prevents sticking. Copyright Xomox Corporation 1965, rights reserved. Xomox , Tufline . Tufline XP and Matryx are registered trademarks of Xomox XRP is a trademark of Xomox retentionof the sleeve360 lips 3 Eliminate unscheduled downtime and plus get greatly extended service processors experience dramatic cost reductions when theyswitch from ball and gate Valves . A simple turn of the top adjustmentbolts keeps the sleeve sealing tight-ly and the valve in service far Two independent sealing systemsprovide double protection againstatmospheric the page for detailsabout this valve s superiordouble stem seal. Trouble-free sealing is provided bythe large, full-circumferential PTFE sleeve. No ball or gate valve canmatch this sealing capacity. The PTFE sleeve has a low coefficient of friction. It acts as alubricant. Ease of operation isassured, even when the valve is leftopen or closed for extended cost and greatly extendedservice life assure exceptionally low,long-term ball or gate valveoffers this Tufline Sleeved plug valve pays foritself many times over with more up-timeand greatly extended service s a fully adjustable in-line seal and dual stem seal.

3 Bolts in the top cover provide quick and easy adjustment. Adjust out in-line leakage between shutdowns. Adjust out potential stem leakage. Stem Seal primary stem seal is around thecircumference of the plug. Flowmedia is prevented from reachingthe stem. Stem Seal 2. The secondary backup seal systemprovides a wide comprehensivebackup seal along the top edge ofthe plug and the stem. Unmatched stem sealing. The Tufline standard dual stem sealis clearly superior to those of gatevalves, ball Valves , other plugvalves, and many expensive valveswith extended auxiliary packing. 360 lips. Port defining lips were developed and patented by Tufline . The lipssurround the ports. The lips improve valve performanceand extend service life by: Preventing sleeve cold flow anddeformation. Eliminating sleeve rotation. Breaking up and removingadhering, scaly deposits from theouter surface of the plug as are two independent environmental seals. You get double seal protection at no extra cost.

4 5 Multiport Valves Tufline Multiport Sleeved PlugValves bring economy and morecompact system design to thousands of applications. Bi-directional flow for moreflexibility. In the diagrams the color indicatesthe path of fluid flow. Bi-directionalflow permits more system designoptions. 3-way arrangements. Only the Type A plug will shut offthe flow. With the Type AX, C, and D plugs, there is always flow between the bottom port and one of the side ports. 0 positionTypeATypeAXTypeCTypeC position 180 position4-way and 5-way Valves . For optimum system flexibility 4-wayand 5-way multiported Valves areavailable. For details such as sizes available and dimensionalinformation visit orcontact the TestedValves API-607 Standards. Tufline Fire Tested Sleeved PlugValves have been tested in accordance with API-607 - FourthEdition - Section - SpecificationsFor External Leakage. Thesevalves exceed the sealing require-ments specified in those tight external seal was maintainedeven after the PTFE sleeve andsealing parts were totally destroyedby fire.

5 Fire tested stem seal. A metal diaphragm overlays thePTFE diaphragm. If the PTFE diaphragm and wedge ring aredestroyed by fire, the metaldiaphragm maintains the seal. Fire tested cover seal. In the standard valve, if the PTFE sleeve and diaphragm aredestroyed by fire, leakage wouldoccur at the cover joint. The flexiblegraphite cover seal prevents this. Itis fitted into a machined counter -bore in the valve body. The coverbolts compress the graphite ring betweenthe valve body and cover. Even iffire occurs, this seal is maintained. Vented plug. In fire tested Valves , the plug isvented on the upstream side. Thisrelieves the expansive pressurecaused by the heat of the with vented plugs are unidirectional. An arrow stampedon the valve body indicates the flowdirection. Sizes: - 6 .For larger sizes use the Tertiary TopSeal shown on the next : 2, 3, 4, and partially and fully jacketed. End connections:Screwed, flanged, weld. Pressure ratings:ANSI 150, 300, and 600.

6 WedgeRingPTFED iaphragmMetalDiaphragmThrustCollarFlexib le Graphite Cover Seal7 Tertiary Top Seal Valves Control fugitive emissions. This optional top seal package provides exceptional control of fugitive emissions. It meets orexceeds the most stringent currentregulatory requirements. Triple sealed for extra protection. Under normal conditions, there arethree active seals between the flowmedia and the atmosphere. Primarysealing is provided by the interactionof the plug, sleeve, and body. Secondary sealing is provided bythe PTFE and metal diaphragms. Tertiary sealing is provided at thestem by the encapsulated, flexiblegraphite stem seal and at thebody/cover joint by the graphitecover seal ring. This simple system assures stem sealing. This simple, compact, patenteddesign harnesses complex dynamicforces to assure effective sealing toatmosphere. The metallic cartridge totally encapsulates the flexible graphitetertiary dynamic stem seal. At its outer edge, the metaldiaphragm overlaps the graphitestatic seal ring to reinforce the tertiary seal at the body-to-coverjoint.

7 The PTFE wedge ring concentratesthe sealing force of the PTFE diaphragm radially against the valvestem for more reliable prevention ofexternal leakage at this secondaryseal. API-607 Standards. Like the fire tested valve, the TuflineTertiary Top Seal Sleeved Plugvalve also exceeds API-607 - FourthEdition - Section - SpecificationsFor External Leakage. It is avail-able in a broader range of sizesthan the standard fire tested model. Vented plug. If this valve is intended for use in a fire tested application, a vented plug is :1/2inch - 24 inch. Configurations:2, 3, 4, and partially and fully jacketed. End connections:Screwed, flanged, socket weld, and butt weld. Pressure ratings: ANSI 150, 300, and 600. MetaldiaphragmValvebodyPTFE sleevePlugFlexible graphitecover seal ValvecoverCartridgeouter ringEncapsulated, flexiblegraphite stem seal PTFE diaphragmCartridge inner ringPTFE wedge ringAdjustingbolt8 The cage is contained within theplug. It is fixed in place by pins thatare welded in the bottom of thevalve body.

8 Bearings on the cageprovide clearance between the plugand the cage, so the plug rotatesfreely. Metal-to-metal throttling. With caged plugs, there is metal-to-metal throttling and metal-to-softseat shutoff. In throttling applications, the cage protects theseat from erosion by shielding thesoft seat from direct flow impingement at the valve ports. High velocity fluids. With high velocity fluids, the cagereduces turbulence and cuttingaction. The cage provides a moredirect, contoured flow path throughthe valve. Sizes: 1 - 8 . Materials: WCB body with CD4 MCu plug body with CD4 MCu plug andcage. (Other materials upon your Tufline SalesEngineer.) Caged PlugValves PTFE sleeve protection. Tufline Sleeved Plug Valves can befurnished with caged plugs. Thisprovides soft seat protection in throttling applications and in services with high pressure dropthrough the valve. Typical applications: Waste sludge Calcium carbonate slurry Alum Brine Green liquor Raw river water Lime mud Sulfuric acid with zinc powderPhosphoric acid slurry Soda ash.

9 And many others 9 Sampling Valves Fluid analysis, equipment evaluation, problem solving, andquality control all depend on convenient sampling. Safe, simple sampling. open - normal flow. the valve is rotated and passes the intermediate position,flow is shut off. A specificamount of media is trapped within the plug. There is no trans-flow. the valve in the fully closedposition, the trapped sample canbe transferred into an appropriate container by operating sample and vent valving. Infrequent use. In many applications, samplingvalves are cycled Sampling Valves provideexcellent operating reliability, evenafter being left open for long periodsof time. Tufline Sampling Valves are available in a full range of classes,sizes, and materials. You can alsochoose from several levels of fugitive emissions control. Gravity Sampling System. Material drops from the tank or hopper into the plug cavity. Themodified plug has an opening onone side only. The plug is rotated180 and the plug contents are fedinto the gravity or vacuum systempipe.

10 The plug rotates 180 to its originalposition and refills. The valve canbe manually or automatically operated. A typical application ismetered injection of a pelletized orliquid catalyst. Plug Cavity Volume - Cubic inches(approximate)Gravity Plug Cavity Volume - Cubic inches (approximate)1 11/2 2 21/2 3 4 6 1/2 1 11/2 2 21/2 3 4 6 8 configurations Separate descriptive brochures andtechnical data are available forthese Valves . Ask your SalesEngineer for details. Severe service Tufline Severe Service Valves provide outstanding protectionagainst external leakage, even withextreme thermal cycling. Class 600 Available in sizes 1/2 thru 24 in awide variety of also XP Sleeved Plug Valveshave a patented shrink seal thermal cycling, when fugitive emissions are most likely toescape, this patented shrink-seal liptightens the seal. To enhance protection against leakage to atmosphere, the PTFE chevron rings provide a secondary(completely redundant) pressure-assisted stem seal.