Hancock Series 5505

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Válvulas Hancock
  Features ãRated to ASME/ANSI 800 LimitedClass for use in all applicationsrequiring 800 Limited Class ratings or below.ãAvailable in 1 nominal pipe size with 1  /  8 , 3  /  16 , 1  /  4 or 5  /  16 orifice,depending on desired flow capacities.ãA micrometer dial position indicatorallows fast, precise and repeatablesettings.ãSocket weld end connections.ãBoth disc and disc seat are hard facedwith Stellite for erosion resistance.ãSeating surfaces are ground andlapped for tight shut off, eliminatingdouble valving requirements.ãThe integral stem disc is faced withStellite, then ground and lapped foraccurate,leakfree sealing.ãThe disc is tapered for maximumcontrollability over the full strokeof the valve.ãStandard material is carbon steel(ASME SA 105) body with 13%chrome stainless steel trim.ãOne-piece drop forged bodyãGraphite packing, complete withbraided graphite filament yarn anti-extrusion rings, is standard.ãAll Hancock 5505 series valvescomply with ASME/ANSI B 16.34 andthe ASME Boiler and Pressure VesselCode, Section 1. Applications In addition to continuous blowdownservice, the Hancock High PressureDrop valve is also used on feedwaterbypass relief,sampling systems,drainsand other services where erosion isextremely severe. Available Types ã5505WAngle Body, Socket Weld toASME B16.11 Size 1 Hancock Series 5505 Continuous Blowdown Globe Valve Copyright ©2008 Tyco Flow Control.All rights reserved.HANMC-0357-US-0808 Total Flow Control Solutions™  ®  Hancock is either a trademark or registered trademark of Tyco International Services AG or its affiliatesin the United States and/or other countries.All other brand names, product names, or trademarks belongto their respectiveholders. Flow Control  Advanced construction features of this high pressuredrop angle globe valve provide quality and long service life,Class 800 ANSI.  Micrometer Dial Indicator -fast, accuratepositioning and repeatable flow controlsettings. Standard Hex Gland Nuts -can be adjustedwith standard tools. Swing Bolts Hardened Pins -for ease ofrepacking.Pins are retained on both ends formaximum strength and safety. Graphite Packing -with built in corrosioninhibitor for leak tight sealing at high and lowpressures and temperatures. Non-extrusion Rings -prevent packingmigration and ensure long service life in highpressure and temperature service. Graphite Filled Stainless Gasket -withcontrolled compression for maximumcorrosion resistance and zero leakage. End Connections -in accordance withASME/ANSI B16.34 and are available insocket weld configurations. Large Spoked Handwheel -for ease ofoperation and locking. Acme Stem Thread -for maximum strength,smooth, quick operation. Stainless Steel Thread Bushing -preventswear and corrosion. Gland Flange -forged steel, gland flange andseparate gland are self aligning for straight linethrust against packing.No special toolsrequired for packing adjustment. High Strength Bonnet Bolting -extra heavyhex head cap screws use standard tools foreasy maintenance. Integral Bonnet and Yoke -one-piece forgingis made from ASME Boiler and PressureVessel Code,Section I listed materials. Body-Bonnet Joint -metal-to-metal surfacecontact for automatic control of gasketcompression and elimination of flangeoverstressing. Forged Bodyand Bonnet -in full accordancewith ASME Boiler and Pressure Vessel Code,Section 1 design and material requirements. Fixed Back Seat -positive, leak proof, packingchamber isolation.Fully machined for accurateseating. Rugged One-Piece Stem/Disc -precisionground and heat treated for maximum wear life. HardFaced Needle Disc -precision ground for tight shutoff and maximum wear life. Renewable,Solid Stellite Seats -arestandard. Diverging Delivery Tube -precision ground and heat treated for maximum wear lifeinmultiphase-flow and under cavitatingconditions. Specifically designed to withstand the deleterious effects of continuous blowdownservice so damaging to conventional valves.The high velocity stream of boiler water,flashing into steam, is forced to expend its kinetic energy within the confines of thediverging hardened stainless steel delivery tube, thus eliminating damage to the valvebody wall and downstream piping. Hancock Series 5505 Continuous Blowdown Globe Valve Copyright ©2008 Tyco Flow Control.All rights reserved.HANMC-03572 Features  Materials of Construction No.PartMaterial Specification 1Body Forged Carbon Steel ASME SA1052Bonnet Forged Carbon Steel ASME SA1053Stem Stainless Steel410 Condition T4Stem Facing Hard Facing Stellite or Equal5Seat Solid Stellite Stellite or Equal6Tube Stainless Steel 3477Thread Bushing Stainless Steel 410 Condition T8Packing Gland Flange Carbon Steel ASTM A1059Packing Gland Stainless Steel 410 Condition T10 Packing Gland Bolt Stainless Steel 410 HT11 Packing GIand Nut Carbon Steel ASTM A194-2H12 Pin Stainless Steel410 HT13 Packing Ring Compressed Graphite Corrosion Inhibited14 Bonnet Bolt Alloy Steel ASTM A193 Gr.B-716 Gasket 304 Stainless Steel Spiral Wound Graphite Filled17 Handwheel Ductile Iron18 Handwheel Nut Carbon Steel Lock-Type19 Marker Plate Etched Aluminum -20 Dial Brass -21 Dial Plate Brass -22 Indicator Brass -23 Indicator Bracket Aluminum -24 Indicator Plate Aluminum -25 Indicator Plate Screw Brass - Socket Weld Ends to ANSI 816.11Type 5505W Hancock Series 5505 Continuous Blowdown Globe Valve Copyright ©2008 Tyco Flow Control.All rights reserved.HANMC-03573 Weight 8.2 pounds Note 1.Dimensions in inches [mm]. C v Values Based on Percent ofOpening Flow CoefficientPercentC v OpenOrifice Size % 1  /  83  /  161  /  45  /  16 10 0.060.11 0.17 0.2820 0.13 0.24 0.36 0.6030 0.19 0.35 0.56 0.9440 0.240.430.731.2250 0.29 0.52 0.90 1.5060 0.34 0.62 1.05 1.7570 0.40 0.72 1.20 2.0080 0.43 0.78 1.30 2.1890 0.46 0.83 1.40 2.32100 0.48 0.87 1.50 2.50 258101314121632172018192221723241191456     D    i   a    1     7     /     8     [    4    7 .    6    ] Dia1 7  /  8 [47.6]2 1  /  4 [57.2]     3     1     /     4     [    8    2 .    6    ]    5     1    5     /     1    6     [    1    5    0 .    8    ]    C    l   o   s   e    d    6     1     /     4     [    1    5    8 .    8    ]    O   p   e   n Dia 1  /  2 [12.7]     D    i   a    1     7     /     8     [    4    7 .    6    ]    D    i   a    1 .    3    3    [    3    3 .    8    ] 1  /  2 [12.7]Dia3 1  /  2 [88.9]  Example 1: To determine the correct sizeorifice for an 800 Class Continuous BlowdownValve which will flow 3500 lbs/hr at 800 psiginlet pressure.A.On the Continuous Blowdown-Wide Openchart to the right, locate 3,500 on theBlowdown Capacity scale and draw ahorizontal line (a) across the chart fromthat point (see example below).B.Draw a vertical line (b) from 800 on theBoiler Pressure scale to intersect with the horizontal line (a).C.Continue the vertical line (c) until itintersects with the next higher orifice curve(in this case, 3  /  16 ).D.Draw a horizontal line (d) from theintersection of the 3  /  16 orifice curve to the Blowdown Capacity line and read the maximum capacity of the 3  /  16 orificevalve (3800 lbs/hr).E.Check to ensure that the selected orificewill result in the correct valve position toallow for proper control without throttlingtoo close to the seat (see steps F- H).F.On the Handwheel Turns vs Percent ofWide Open Capacities chart (see page 5),locate the 3  /  16 orifice curve and draw avertical line (e) from where it intersects with the 100% open line down to theHandwheel Turns scale.Read the numberof turns to reach maximum capacity of thevalve (2 turns).G.Determine what percent of the full opencapacity is required to attain the Normalrequired flow rate (Divide the NormalRequired Flow Rate by the Maximum FlowRate and multiply by 100 to obtain thecorrect percentage.) 3500/3800 x 100 = 92%.H.Verify that the required flowrate will beobtained when the valve is between 1  /  3 and 2  /  3 open (in this case, between 0.66 and1.33 full turns) by drawing a horizontal line(g) from the 92% point on the capacityscale to intersect with the 3  /  16 orificecurve.Then draw a vertical line (f) from thatintersection to the Handwheel Turns scaleand read the number of turns open (1.7)required to attain the specified flow (3500lbs/hr).Since 1.7 turns is much greater than thedesired 1.33 and will result in little or nocontrollability,the next larger sizeorifice ( 1  /  4 )should be utilized and the flow rate versusvalve disc position reverified by repeatingsteps A through H. Hancock Series 5505 Continuous Blowdown Globe Valve Copyright ©2008 Tyco Flow Control.All rights reserved.HANMC-03574 Continuous Blowdown Chart - Wide Open1 Figure Numbers 5505W Wide Open Capacities vs.Boiler Pressures (Reference #MM332) 151098765432.521.510. 5  /  161  /  43  /  161  /  8 432 3  /  163  /  16 and 1  /  8 1009080gedbca80000.511.52345 Boiler Pressure psi     B    l   o   w    d   o   w   n    C   a   p   a   c    i    t   y  -    T    h   o   u   s   a   n    d   s   o    f    L    b   s .    P   e   r    H   r . Boiler PressureHandwheel Turns     B    l   o   w    d   o   w   n    C   a   p   a   c    i    t   y    P   e   r   c   e   n    t   o    f    W    i    d   e    O   p   e   n    C   a   p   a   c    i    t    i   e   s
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