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Model 380 Control Valve 

(8 Inch Only)

Dyna-Flo Control Valve Services Ltd.

 

Phone: 780 

•

 469 

•

 4000       Toll Free: 1 

•

 866 

•

 396 

•

 2356       Fax: 780 

•

 469 

•

 4035       Website: www.dyna

fl

 o.com  

P-388M0319A

3

Operation, Parts, and Instruction Manual

SPECIFICATIONS

Confi gurations

  Refer to Table 1 of the Sales Bulletin.

  Consult your Dyna-Flo sales of

fi

 ce for other available

 con

fi

 gurations.

Sizes and End Connection Styles

  Models            380 & 381

  Size:             8”

  Rating:           ASME 900 & 1500

  Connections:   RF / RTJ / BWE

Maximum Inlet Temperatures and Pressures

  In accordance with ASME B16.34 Class 1500 unless limited 
  by material selection shown in Tables 4 to 7, and Figure 9 
  of the Sales Bulletin.

Maximum Pressure Drops

  Same as maximum inlet pressure unless limited by speci

fi

 c 

  trim construction. For valve assembly shut off pressure drops 
  refer to Table 8 and Figure 9 of the Sales Bulletin.

Shutoff Classifi cations
 

Refer to Table 1 of the Sales Bulletin.

Dimensions

 

 Valve 

Dimensions

    Refer to Table 3 and Figure 2 of the Sales Bulletin.

Approximate Valve Body Weights

  Refer to Table 2 of the Sales Bulletin.

Valve Body to Bonnet Bolting

  Refer to Table 5 of the Sales Bulletin.

Characteristics

 

•

  Equal Percentage (Standard)

 

•

 Modi

fi

 ed Equal Percentage

 

•

 Linear

 

•

  Contact factory for Low-Noise and Anti-Cavitation options.

Flow Direction
 

Flow down through seat ring except when using Low-Noise 

 trim.

Packing Type and Examples

  The standard packing is PTFE V-Ring. Live loaded low 
  emission, graphite and other packing arrangements are 
  also available. Refer to Figure 8.

Flow Coeffi cients

  For standard coef

fi

 cients at maximum travel, refer to Table 7 

  of the Sales Bulletin.
  For full list of coef

fi

 cients refer to document P-CVSM.

Valve Travel

  Refer to Table 7 of the Sales Bulletin.

Trim Materials

  Refer to Table 6 of the Sales Bulletin.

Materials

  Body and bonnet material options include:

  LCC (A350-LF2 optional* bonnet material) 

  WCC (A350-LF2 optional* bonnet material)  

  CF8M (A182-F316 optional* bonnet material)

 

*NOTE:

 Dyna-Flo reserves the right to substitute a cast 

  material with the forged bar equivalent in the event a casting 
  is not available.

  Refer to Figure 8 of the Sales Bulletin. Refer to Tables 4 & 5  
  of the Sales Bulletin for typical construction materials. Refer 
  to Table 6 of the Sales Bulletin for trim selections.

For more information and other options contact your Dyna-Flo 
sales of

fi

 ce.

Содержание 380

Страница 1: ... 4 Body to Bonnet Stud Torque Table 2 11 Periodic Inspection 5 Valve Stem Connection Details Table 3 11 Maintenance 5 Seat Ring Cap Screw Torque Table 4 11 Removing Actuator 5 Packing Nut Torque Table 5 11 Needle Valve Setup Figure 2 5 Packing Diagrams Figure 8 12 Rigging Setup Figure 3 6 Valve Cross Section Figure 9 13 Actuator Mounting Nuts and Bolts Figure 4 6 Seat Ring Seal Detail Figure 10 14...

Страница 2: ...mbinations are limited in their pressure and temperature ranges Do not apply any other conditions to the valve without first contacting your Dyna Flo sales office This manual is written to be a practical and useful guide maintaining the Dyna Flo 380 Control Valve CAUTION To avoid personal injury or installation damage as a result of the sudden release of process pressure or the breaking of parts d...

Страница 3: ... to Bonnet Bolting Refer to Table 5 of the Sales Bulletin Characteristics Equal Percentage Standard Modified Equal Percentage Linear Contact factory for Low Noise and Anti Cavitation options Flow Direction Flow down through seat ring except when using Low Noise trim Packing Type and Examples The standard packing is PTFE V Ring Live loaded low emission graphite and other packing arrangements are al...

Страница 4: ...ect flange gasket surfaces for damage Check packing box bolting for proper tightness Packing nuts should be slightly over finger tight however tighten only as necessary to prevent stem leakage If the valve has small internal flow passages such as anti cavitation or low noise trim the installation of an upstream strainer should be considered to prevent clogging of these small passages CAUTION Do no...

Страница 5: ...or damage caused by corrosive fumes or process drippings 4 Clean the valve and repaint areas of severe oxidation 5 Make sure positioner linkage if equipped and stem connector are securely fastened If the stem connector is loose check plug thread engagement and retighten Refer to the Actuator Manual for detailed instructions 6 Ensure all accessories mounting brackets and fasteners are secure 7 Clea...

Страница 6: ...g instructions refer to the P LLPS Instruction Manual For single spring loaded packing A Spring loaded packing has constant force applied to the packing set Key 2 through a spring Key 5 in the packing bore Ensure that the packing follower Key 8 is in contact with the bonnet Key 1 if not tighten the packing nuts Key 12 until the packing follower comes in contact with the bonnet If this does not sto...

Страница 7: ...spring loaded To remove the seal ring Key 29 first pry the retaining ring Key 27 out of the groove then remove the metal backup ring Key 28 Finally remove the seal ring from the plug Piston ring Piston rings Key 30 were broken in half simply pull apart the sections of piston ring and remove 2 Inspect the valve stem Key 17 for any deep scratching or corrosion also inspect the threads for any damage...

Страница 8: ...s cannot be reused 2 Inspect all gasket surfaces for damage 3 Inspect the internal body surfaces for any signs of corrosion erosion or irregular wear ASSEMBLY Ensure that all parts have been cleaned and inspected as per disassembly section NOTE For instructions on Anti Cavitation and Low Noise Trims contact the Dyna Flo Sales Office NOTE Use an anti seize compound that is approved for the service ...

Страница 9: ...g into two pieces Do not saw or cut piston rings Use extreme caution when breaking piston rings as they can be easily damaged Vise break Refer to Figures 6 7 Piston rings can be broken into two pieces using a vise with smooth jaws or softeners Wrap electrical tape once around the outside diameter of the piston ring to contain it while it is being snapped in half Place the unbroken piston ring into...

Страница 10: ...to rings and not split as the graphite filament ring is Install packing follower Key 8 and flange Key 10 and torque as per Table 5 CAUTION Graphite ribbon packing damages easily care is to be taken when installing it into the packing bore ASSEMBLY Continued Trim Parts Assembly 1 Install two eyebolts or two similar threaded lifting devices into the 9 16 12 UNC holes the two larger holes on the seat...

Страница 11: ...Table 3 Valve Stem Connection Assembly Torque and Pin Replacement VSC Diameter Inches mm Torque lbf ft N m Hole Size Inches mm 1 25 4 310 355 420 481 0 251 0 254 6 38 6 45 1 1 4 31 8 610 670 827 908 0 251 0 254 6 38 6 45 Table 4 Seat Ring Cap Screw Lubricant and Torque Values Lubricant Seal Construction Spiral Wound Gasket Key 23 Seat Ring O Ring Key 31 lbf ft N M lbf ft N M Nickel Based Anti Seiz...

Страница 12: ...alve 8 Inch Only P 388M0319A 12 Operation Parts and Instruction Manual Figure 8 Control Valve Packing Diagrams 1 25 4 mm Stem 1 1 4 31 8 mm Stem SINGLE STYLE PTFE PACKING DOUBLE STYLE PTFE PACKING 1 25 4 mm Stem 1 1 4 31 8 mm Stem GRAPHITE PACKING 1 25 4 mm Stem 1 1 4 31 8 mm Stem 10 9 8 2 7 5 13 14 10 9 8 2 6 2 13 14 8 10 6 6 4 4 4 3 3 13 ...

Страница 13: ...80 469 4000 Toll Free 1 866 396 2356 Fax 780 469 4035 Website www dynaflo com P 388M0319A 13 Operation Parts and Instruction Manual Figure 9 Model 380 Control Valve Cross Section A B FLOW UP FLOW DOWN DETAIL A DETAIL A 17 11 12 1 24 25 27 28 29 22 18 20 15 27 28 29 16 21 21A 26 22 ...

Страница 14: ...866 396 2356 Fax 780 469 4035 Website www dynaflo com Model 380 Control Valve 8 Inch Only P 388M0319A 14 Operation Parts and Instruction Manual Figure 11 Model 381 Cage Piston Ring Detail Figure 10 Detail B O Ring and Gasket Seat Ring Seal 21 31 15 23 21 15 30 21A 21A ...

Страница 15: ...S31600 S31603 Dual Grade 1 inch 25 4 mm Stem 1J87343507D 1 1 4 inch 31 8 mm Stem 1J87353507D Key Description Part Number 15 Body if you need a body as a replacement part order by valve size and stem diameter serial number and desired material 16 Valve Plug Refer to Table 7 8 17 Valve Stem Refer to Table 9 18 Cage Refer to Table 11 19 Valve Plug Stem Assembly Refer to Table 10 20 Pin S31600 S31603 ...

Страница 16: ... for Double Refer to Table 11 for Repair Kits 1 2 1R29060101D 1R29080101D Lower Wiper Teflon 14 Spring S30400 for single only 5 1D58293701D 1D38743701D Lantern Ring S31600 S31603 for double only 6 DFX0000051D DFX0000061D Quantity Required Double Packing 1 1 Special Washer S30400 for Single only 7 1H98223604D 1H99593604D Graphite Ribbon Graphite Filament Graphite Ribbon Ring 3 1U6768X002D 1V5666X00...

Страница 17: ...e Size Inch Stem Diameter Inch mm S31600 Alloy 6 Hard Faced Seat Guide S42000 8 1 25 4 380N8810X2D 1 1 4 31 8 2 50 8 VSC 35A4006XN1D Key 18 Cage Table 11 Valve Size Inch S17400 DH1150 Quick Opening Cage Linear Cage Equal Percentage Cage 8 380C8617X1D S31600 S31603 Dual Grade ENC Quick Opening Cage Linear Cage Equal Percentage Cage Table 7 Key 16 Valve Plug for Spring Loaded Seal Ring Valve Size In...

Страница 18: ... 127 mm Parts Ordering Whenever corresponding with Dyna Flo about 380 Control Valves refer to the nameplate for the serial number of the unit Please order by the complete part number as given in the part lists of each part required Our Commitment to Quality Dyna Flo is committed to continuous improvement While all efforts have been made to ensure the accuracy of the content in this document modifi...

Страница 19: ...e 8 Inch Only Dyna Flo Control Valve Services Ltd Phone 780 469 4000 Toll Free 1 866 396 2356 Fax 780 469 4035 Website www dynaflo com P 388M0319A 19 Operation Parts and Instruction Manual This page left blank intentionally ...

Страница 20: ...D PACKING STYLE P P SINGLE PTFE V RING PRESSURE J DOUBLE PTFE V RING PRESSURE G SINGLE GRAPHITE PRESSURE V DOUBLE PTFE V RING VACUUM R DOUBLE PTFE V RING VACUUM PRESSURE L LIVE LOADED PTFE V RING PRESSURE T LIVE LOADED GRAPHITE PRESSURE D LIVE LOADED DUPLEX PRESSURE K LIVE LOADED KALREZ YOKE BOSS SIZE VALVE STEM DIAMETER 5 5 5 127 mm 1 25 4 mm H 5H 5 127 mm 1 1 4 31 8 mm PAINT DFPS 01 STANDARD 2 D...

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