Valtek Severe Service Equipment

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Valtek Severe Service EquipmentTiger-Tooth TrimMaintenanceAll Flowserve trims are designedfor easy maintenance and Tiger-Tooth is no exception. Clearancebetween the stack and plug isdesigned for an optimum combinationof stability and smoothoperation. The clamped-in seat,top-entry trim design permits quickdisassembly. The Tiger-Toothstack is easily removed for inspectionor cleaning. The Tiger-Toothstack design is ideal for fluids withentrained particles. Fine andmedium-sized particles easily passthrough the discs because thedesign does not include anyhorizontal boundaries within thestack.Flow CapacityThe required flow capacity for anapplication can be determinedthrough the standard ISA sizingequations. The main difference insizing a standard globe valve anda Tiger-Tooth valve is that theTiger-Tooth valve is far less likelyto choke in either a gas or liquidapplication.In choosing a valve for a particularapplication, the user should considernot only the C V, but also thevelocity and the Sigma value orpressure ratio that must be accommodated.The typical Tiger-toothtrim information given in the tableson page 9 is not intended to providea complete listing of all availabledesigns. Rather, it can beuseful in estimating capabilities ofa particular valve size and pressureclass.Trim PartTable 3: Tiger-Tooth Materials of ConstructionExpanding Tiger-ToothSudden ExpansionFLOWAvailable MaterialsS tack Aluminum-Bronze, 410 stainless steel, 316 stainless steel,316 stainless steel with Alloy 6 overlay, other alloys asrequiredP lug 316 stainless steel, 316 stainless steel with Alloy 6 overlay,other alloys as requiredS eat Ring 316 stainless steel, 316 stainless steel with Alloy 6 overlay,other alloys as requiredSudden ContractionFigure 12: Sudden Expansion and ContractionCaused by Tiger-Tooth Design2 Teeth3 Teeth4 Teeth7 Teeth6 Teeth5 TeethFigure 13: Noise Reduction vs. Number of Tiger-Tooth Teeth8Flowserve Corporation, Valtek Control Products, Tel. USA 801 489 8611
Valtek Severe Service EquipmentTiger-Tooth TrimClass 150 - 600: Mark One GlobeBody Trim No. C VStroke P 1/P 2Sigma No. ofSize (Seat Dia.) Max. Min. Teeth1.5 1.50 24 2.0 4.0 0.28 2to 1.12 12 2.0 9.0 0.052 2 - 32 1.12 7 2.0 16.0 0.016 3 - 41.00 4 2.0 30.0 0.0046 4 - 53 2.25 44 2.5 5.0 0.17 21.75 22 2.5 10.0 0.042 3 - 41.25 12 2.5 17.0 0.014 5 - 61.25 7 2.5 31.0 0.0043 6 - 74 3.00 80 3.0 4.7 0.20 22.25 36 3.0 10.0 0.042 3 - 41.50 18 3.0 20.0 0.010 5 - 61.50 9 3.0 42.0 0.0023 6 - 86 4.00 150 4.0 4.4 0.22 23.25 75 4.0 10.0 0.042 3 - 42.25 37 4.0 20.0 0.010 5 - 62.25 18 4.0 34.0 0.0036 6 - 78 5.38 270 6.0 5.0 0.17 24.00 130 6.0 10.0 0.042 2 - 32.75 65 6.0 20.0 0.010 4 - 62.75 32 6.0 40.0 0.0026 6 - 710 7.50 500 7.5 5.0 0.17 25.50 250 7.5 10.0 0.042 3 - 44.00 125 7.5 20.0 0.010 5 - 63.50 65 7.5 40.0 0.0026 6 - 712 8.50 600 8.0 5.0 0.17 26.00 300 8.0 10.0 0.042 3 - 44.50 150 8.0 20.0 0.010 5 - 64.00 75 8.0 40.0 0.0026 6 - 714 9.00 700 8.00 5.0 0.17 26.25 350 8.00 10.0 0.052 44.00 175 8.00 20.0 0.013 64.00 80 8.00 40.0 0.003 816 12.00 1100 12.00 5.0 0.17 28.00 550 12.00 10.0 0.042 45.50 225 12.00 20.0 0.010 64.00 110 12.00 40.0 0.0026 8Class 150 - 600: Fabricated Angle BodyBody* Trim No. C VStroke P 1/P 2Sigma No. ofSize (Seat Dia.) Max. Min. Teeth16 9.50 750 12.0 5.5 0.14 27.00 375 12.0 11.0 0.034 3 - 45.00 200 12.0 20.0 0.010 5 - 618 9.50 900 12.0 5.0 0.17 27.50 450 12.0 10.0 0.042 3 - 45.50 225 12.0 20.0 0.010 5 - 620 10.75 1100 12.0 4.7 0.20 28.25 550 12.0 9.0 0.052 3 - 46.00 275 12.0 19.0 0.011 5 - 624 12.50 1500 18.0 5.5 0.14 29.50 750 18.0 11.0 0.034 3 - 47.00 375 18.0 22.0 0.0085 5 - 630 18.50 2800 24.0 5.0 0.17 213.00 1400 24.0 10.0 0.042 3 - 49.50 700 24.0 20.0 0.010 5 - 636 22.00 4000 24.0 5.0 0.17 216.00 2000 24.0 10.0 0.042 3 - 411.25 1000 24.0 20.0 0.010 5 - 6*Outlet body size; inlet sizes can vary depending on application.Table 4: Tiger-Tooth Trim DataFlowserve Corporation, Valtek Control Products, Tel. USA 801 489 8611Class 900 - 1500: Mark One GlobeBody Trim No. C VStroke P 1/P 2Sigma No. ofSize (Seat Dia.) Max. Min. Teeth1.5 1.38 22 2.0 5.0 0.17 2to 1.12 13 2.0 9.0 0.052 2 - 32 1.12 7 2.0 18.0 0.013 3 - 41.12 4 2.0 34.0 0.004 4 - 53 2.25 40 3.0 6.5 0.10 21.75 22 2.5 9.0 0.052 3 - 41.25 12 2.5 17.0 0.014 5 - 61.25 7 2.5 31.0 0.004 6 - 74 3.00 72 3.0 5.0 0.17 22.25 36 3.0 13.0 0.025 3 - 41.62 18 3.0 20.0 0.010 5 - 61.62 9 3.0 40.0 0.0026 6 - 76 3.50 130 4.0 5.0 0.17 23.00 75 4.0 9.0 0.052 3 - 42.50 37 4.0 19.0 0.012 5 - 62.12 18 4.0 35.0 0.003 6 - 78 5.50 250 6.0 5.0 0.17 24.00 125 6.0 10.0 0.042 3 - 42.75 60 6.0 21.0 0.009 5 - 62.75 30 6.0 36.0 0.003 6 - 710 6.50 410 7.5 5.0 0.17 25.00 200 7.5 10.0 0.042 3 - 43.50 100 7.5 20.0 0.010 5 - 63.50 50 7.5 40.0 0.0025 6 - 712 7.50 500 8.0 5.0 0.17 25.50 250 8.0 9.0 0.052 3 - 44.00 125 8.0 20.0 0.010 5 - 64.00 60 8.0 40.0 0.0025 6 - 7Class 2500: Mark One GlobeBody Trim No. C VStroke P 1/P 2Sigma No. ofSize (Seat Dia.) Max. Min. Teeth1.5 1.38 22 2.0 5.0 0.17 2to 1.12 13 2.0 9.0 0.052 2 - 32 1.12 7 2.0 18.0 0.013 3 - 41.12 4 2.0 34.0 0.004 4 - 53 2.00 35 2.5 5.0 0.17 21.50 18 2.5 10.0 0.042 3 - 41.25 9 2.5 20.0 0.010 5 - 64 2.50 55 3.0 5.0 0.17 21.75 28 3.0 12.0 0.029 3 - 41.75 14 3.0 24.0 0.007 5 - 66 3.50 100 4.0 5.0 0.17 22.50 50 4.0 10.0 0.042 3 - 42.25 25 4.0 20.0 0.010 5 - 68 4.75 200 6.0 5.0 0.17 23.50 100 6.0 10.0 0.042 3 - 42.62 50 6.0 20.0 0.010 5 - 6NOTE: Body size, trim number and stroke are in inches.9
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