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Dyna 380 Скачать руководство пользователя страница 2

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

Model 380 Control Valve

(8 Inch Only)

P-388M0319A

2

Operation, Parts, and Instruction Manual

NOTICE

These instructions are meant to be used with the Dyna-Flo 380 Technical Bulletin as they refer to Figures

and Tables therein. If you do not have the Technical Bulletin, contact Dyna-Flo immediately, or visit

www.dynafl o.com

Each control valve is factory tested and checked. Check the calibration for the speci

fi

c application, before a

valve is put into service.

It is the intention of this document to provide users with an accurate guide for safe installation and

maintenance of the 380 Control Valves. Revisions and updates are available at above mentioned website.

GENERAL

The following instructions are to be thoroughly reviewed and understood prior to installing, operating or performing
maintenance on this equipment. Work on this equipment should be performed by experienced personnel. Throughout
the manual, safety and caution notes appear and must be strictly followed, to prevent serious injury or equipment
malfunction.

SCOPE

The control valve con

fi

guration and construction materials were selected to meet particular pressure, temperature, and process

fl

uid

conditions. Some material combinations are limited in their pressure and temperature ranges. Do not apply any other conditions to
the valve without

fi

rst contacting your Dyna-Flo sales of

fi

ce.

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, do not install the valve assembly where service conditions could exceed the limits stated in this manual or on
the equipment nameplates. Use government codes, accepted industry standards and good piping practices to select
pressure-relieving equipment for protection of your installation. It is also important to wear the proper
protective equipment when performing any installation or maintenance activity.

INTRODUCTION

The Dyna-Flo 380 series of valves are heavy duty cage guided globe style control valves designed for high pressure applications.
These valves are used in all kinds of demanding applications, including oil and gas production and chemical process.

Both Models 380 and 381 are cage guided control valves with balanced plugs. Model 380 control valves are capable of Class V
shutoff at process temperatures below 450

°

F (232

°

C). Model 381 control valves are designed for high temperature / high pressure

applications and are well suited for general applications that do not require tight shutoff.

A bolted bonnet is standard and a typical actuator is a Dyna-Flo Model DFC, DFO, or DFLP linear actuator.

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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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