Instruction Manual

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Fisherr Large ET and ED Valves

NPS 12 through 16 and NPS 30

Contents

Introduction 1.................................

Scope of Manual 1.............................

Educational Services 2.........................

Description 3.................................

Specifications 4...............................

Installation 4..................................

Maintenance 5................................

Packing Lubrication 7..........................

Packing Maintenance 7.........................

Replacing Packing 7........................

Trim Maintenance 12..........................

Trim Removal 12..........................

Lapping Seating Surfaces 13.................

Valve Plug Maintenance 13..................

Trim Replacement 14......................

Retrofit: Installing Bore Seal Trim 19..............

Replacement of Installed Bore Seal Trim 21........

Trim Removal (Bore Seal Constructions) 21....

Lapping Metal Seats

(Bore Seal Constructions) 22..............

Remachining Metal Seats

(Bore Seal Constructions) 22..............

Trim Replacement

(Bore Seal Constructions) 23..............

Parts Ordering 24...............................

Parts List 25...................................

Figure 1. Fisher NPS 12 Valve with Piston Actuator

and FIELDVUE™ DVC6200 Digital Valve Controller

X0237-1

Introduction

Scope of Manual

This instruction manual includes installation and maintenance information for NPS 12 through 16 and NPS 30 CL150

through 600 Fisher ET and ED valves.

Refer to separate manuals for instructions covering the actuator and accessories.

Do not install, operate, or maintain an ET or ED valve without being fully trained and qualified in valve, actuator, and

accessory installation, operation, and maintenance. To avoid personal injury or property damage, it is important to

carefully read, understand, and follow all the contents of this manual, including all safety cautions and warnings. If you

have any questions about these instructions, contact your Emerson Process Management sales office before

proceeding.

Instruction Manual

D103553X012

Large ET and ED Valves

September 2014

Summary of content (28 pages)

PAGE 1
Instruction Manual Large ET and ED Valves D103553X012 September 2014 Fisherr Large ET and ED Valves NPS 12 through 16 and NPS 30 Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Educational Services . . . . . . . . . . . . . . . . . . . . . . . . . 2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Specifications . . . . . . . . . . . . . . . . . . . . . . .
PAGE 2
Instruction Manual Large ET and ED Valves D103553X012 September 2014 Table 1. Specifications Valve Sizes ET and ED: NPS J 12, J 14, J 16 and J 30 End Connection Styles Flanged: CL150, 300, and 600 raised-face or ring-type joint flanges per ASME B16.5 Buttwelding: All ASME B16.25 schedules through schedule 120 that are compatible with the ASME B16.
PAGE 3
Instruction Manual Large ET and ED Valves D103553X012 September 2014 Table 2. WhisperFlo Trim Specifications Trim Material and Selection J 316 Stainless Steel w/ hardfacing J 410 Stainless Steel, hardened J Others per application Temperature Capability J ET: -73 to 232_C (-100 to 450_F) up to 316_C (600_F) with HTS1 option J ED: -29 to 538_C (-20 to 1000_F) J Others per application Maximum Pressure Drops As shown in this bulletin. Also see Bulletin 51.
PAGE 4
Large ET and ED Valves September 2014 Instruction Manual D103553X012 Control valves with WhisperFlo cages provide additional aerodynamic noise attenuation in very demanding vapor or gas applications with high-pressure drops. A WhisperFlo cage with an appropriately sized valve body is designed to reduce the noise level up to -40 dBA. For special applications, -50 dBA attenuation can be achieved. Specifications Typical specifications for these valves are shown in tables 1 and 2.
PAGE 5
Instruction Manual D103553X012 Large ET and ED Valves September 2014 process liquid may cause irreparable erosion damage to the seating surfaces and may plug cage holes and passages, causing cavitation damage. During valve installation or the plant cleaning cycle, install a strainer upstream from the valve to help free pipelines of foreign material. 3. The control valve assembly may be installed in any orientation unless limited by seismic criteria.
PAGE 6
Instruction Manual Large ET and ED Valves D103553X012 September 2014 D Do not remove the actuator from the valve while the valve is still pressurized. D Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal injury. D Disconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the actuator cannot suddenly open or close the valve.
PAGE 7
Instruction Manual D103553X012 Large ET and ED Valves September 2014 Packing Lubrication CAUTION Do not lubricate graphite packing. Graphite packing is self-lubricated. Additional lubrication may result in slip-stick movement of the valve. If a lubricator or lubricator/isolating valve (figure 2) is provided for PTFE/composition or other packings that require lubrication, it will be installed in place of the 1/4 NPT pipe plug (key 14, figure 4). Use a silicon-base lubricant.
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Instruction Manual Large ET and ED Valves D103553X012 September 2014 Figure 3.
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Instruction Manual Large ET and ED Valves D103553X012 September 2014 Figure 3. Typical Packing (Continued) PACKING FOLLOWER (KEY 13) GRAPHITE RIBBON PACKING RING (KEY 7) PACKING FOLLOWER (KEY 13) GRAPHITE RIBBON PACKING RING (KEY 7) GRAPHITE FILAMENT PACKING RING (KEY 7) GRAPHITE FILAMENT PACKING RING (KEY 7) LANTERN RING (KEY 8) LANTERN RING (KEY 8) PACKING BOX RING (KEY 11) PACKING BOX RING (KEY 11) 31.8 and 50.8 mm (1-1/4 and 2 INCH) STEM SINGLE ARRANGEMENT 31.8 and 50.
PAGE 10
Instruction Manual Large ET and ED Valves D103553X012 September 2014 Figure 4. Typical Globe Valve Bonnet CU4317 7. Lift the valve plug and stem assembly out of the valve body and set it on a protective surface. If the valve plug is to be reused, protect the valve plug seating surface to prevent scratches. Table 3. Packing Flange Nut Torque for Packing Without a Spring VALVE STEM DIAMETER mm Inch 31.8 1-1/4 50.
PAGE 11
Instruction Manual D103553X012 Large ET and ED Valves September 2014 CAUTION To prevent damage to the valve cavity, packing box wall, and packing surfaces, observe the instructions in the next three steps. 10. Cover the opening in the valve body to protect the gasket surface and prevent foreign material from getting into the valve cavity. 11. Remove the packing flange nuts, packing flange, upper wiper, and packing follower (keys 5, 3, 12, and 13, figure 4).
PAGE 12
Large ET and ED Valves Instruction Manual September 2014 D103553X012 16. Install new packing and the metal packing box parts according to the appropriate arrangement in figure 3. Place a smooth-edged pipe over the valve stem, and gently tap each soft packing part into the packing box one piece at a time, being sure that air is not trapped between adjacent soft parts. 17. Slide the packing follower, upper wiper, and packing flange (keys 13, 12, and 3, figure 4) into position.
PAGE 13
Instruction Manual D103553X012 Large ET and ED Valves September 2014 For ET valves with HTS1 option (figure 7), the valve has a seat ring seal ring (figure 5, 6, or 7, key 6). Inspect this seal ring, and remove it if replacement is necessary. To remove the seal ring, the retaining ring (key 227) must be removed first. After the retaining ring is removed, the seal ring (key 6), backup ring (key 226), and anti-extrusion rings (key 225) can be removed.
PAGE 14
Large ET and ED Valves Instruction Manual September 2014 D103553X012 For ET valves with HTS1 option, install the seat ring seal ring (key 6) so that its open side faces the valve stem for Cavitrol III trim and flow-down standard cages. Reverse the seal ring for Whisper Trim III, WhisperFlo, and flow-up standard cages so its open side faces away from the valve stem.
PAGE 15
Instruction Manual D103553X012 Large ET and ED Valves September 2014 Secure the seat ring (key 9) with the cap screws (key 49). Tighten the cap screws in a criss-cross pattern to a torque of 39 NSm (29 lbfSft) for NPS 12, 14, and 16 valves. 2. Install a cage gasket (key 11) into the valve. Temporarily install screws or bolts into the tapped holes in the top of the cage assembly (key 3) to help while installing this piece into the valve.
PAGE 16
Instruction Manual Large ET and ED Valves D103553X012 September 2014 Figure 5. Typical Fisher ET Valve CAGE (KEY 3) VALVE PLUG (KEY 2) SEAL RING (KEY 28) VIEW A VALVE PLUG SEAL RING A NOTE: 1 SEAL RING OPENING MUST FACE SEAT RING FOR FLOW DOWN APPLICATIONS AND MUST FACE ACTUATOR FOR FLOW UP APPLICATIONS.
PAGE 17
Instruction Manual Large ET and ED Valves D103553X012 September 2014 Figure 6.
PAGE 18
Instruction Manual Large ET and ED Valves D103553X012 September 2014 Figure 7.
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Instruction Manual Large ET and ED Valves D103553X012 September 2014 Figure 8. Fisher Large ED with Bore Seal Trim RETAINER PISTON RING RETAINER PISTON RING CAGE CAGE SEATING AREA SEATING AREA PLUG PLUG BORE SEAL BORE SEAL FLOW DOWN FLOW UP Retrofit: Installing Bore Seal Trim Note Additional actuator thrust is required for a valve with Bore Seal trim.
PAGE 20
Instruction Manual Large ET and ED Valves D103553X012 September 2014 Figure 9. Bore Seal Installation Tool E F A B G C H D GE22109-A Table 5. Bore Seal Installation Tool Dimensions VALVE PORT SIZE, INCH A B C D 10.00 10.12 9.7 9.80-9.82 10.02-10.00 Dimensions, Inches (See Figure 9) 11.00 E F G H Tool Part Number 0.10 0.10 0.32 R.06 GE17914X012 (1) n/a 1. For sizes,contact your Emerson Process Management sales office. 5.
PAGE 21
Instruction Manual D103553X012 Large ET and ED Valves September 2014 Never reuse an old valve stem with a new plug or reinstall a valve stem after it has been removed. Replacing a valve stem requires drilling a new pin hole in the stem. This drilling weakens the stem and may cause failure in service. However, a used valve plug may be reused with a new valve stem. 11.
PAGE 22
Instruction Manual Large ET and ED Valves D103553X012 September 2014 Figure 10. Stake the Threads of the Bore Seal Retainer DEFORM THREAD TO STAKE Bore Seal RETAINER PISTON RING RETAINER Bore Seal METAL PLUG SEAL A6779 VALVE PLUG FLOW DOWN 4. Locate the break between sections of the piston ring(s). Using an appropriate tool such as a flat-blade screwdriver, carefully pry out the piston ring from the groove in the Bore Seal retainer. 5.
PAGE 23
Instruction Manual Large ET and ED Valves D103553X012 September 2014 Figure 11. Lower (Valve Plug to Seat Ring) and Upper (Bore Seal to Cage) Seating Surfaces RETAINER PISTON RING CAGE 1 SEATING AREA PLUG UPPER SEATING SURFACE BORE SEAL CAGE PLUG SEAT RING LOWER SEATING SURFACE NOTE: 1 UPPER SEATING SURFACE IS THE AREA OF CONTACT BETWEEN THE BORE SEAL METAL PLUG SEAL AND THE CAGE. A6780 Trim Replacement (Bore Seal Constructions) 1.
PAGE 24
Large ET and ED Valves Instruction Manual September 2014 D103553X012 7. Using an appropriate tool such as a center punch, stake the threads on top of the plug in one place (figure 10) to secure the Bore Seal retainer. 8. Replace the piston ring(s) following instructions in the Trim Replacement section of this manual. 9.
PAGE 25
Instruction Manual Large ET and ED Valves D103553X012 September 2014 Key Table 6. Approximate Weights END CONNECTION Size, NPS APPROXIMATE WEIGHT Type(1) RF 12 RTJ BW RF 14 RTJ BW RF 16 RTJ kg lb 1410 3100 1220 2700 1565 3450 1340 2950 1720 3800 BW 1450 3200 30 CL300 RF 6690 14750 30 CL600 RF 13600 30000(2) 1. RF–raised face; RTJ–ring-type joint; BW–buttwelding. 2. NPS 30 CL600 estimated.
PAGE 26
Instruction Manual Large ET and ED Valves D103553X012 September 2014 Figure 12.
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Instruction Manual D103553X012 Large ET and ED Valves September 2014 27
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Large ET and ED Valves September 2014 Instruction Manual D103553X012 Neither Emerson, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.