Fisher Design CAV4 Instruction Manual

Download

Page 1

Instruction Manual Form 5191 September 1999

Design CAV4 Control Valve

Contents

Design CAV4

Introduction

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

Description 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation Principle of Operation Maintenance

Packing Lubrication 5. . . . . . . . . . . . . . . . . . . . . . . . . .

Packing Maintenance 6. . . . . . . . . . . . . . . . . . . . . . . . .

Packing Replacement 7. . . . . . . . . . . . . . . . . . . . . . .

Trim Removal 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Trim Replacement 11. . . . . . . . . . . . . . . . . . . . . . . . . .

Use of Flushing Trim 13. . . . . . . . . . . . . . . . . . . . . . .

Parts Ordering Parts Kits Parts List

1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TYPE 657 ACTUATOR

2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4. . . . . . . . . . . . . . . . . . .

5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14. . . . . . . . . . . . . . . . . . . . . . . . . . .

14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

W2700-1*/IL

Figure 1. Design CAV4 Control Valve

with Type 657 Actuator

DESIGN CAV4 CONTROL VALVE

Description

Introduction

Scope of Manual

This manual includes installation, maintenance, and parts ordering information for the Design CAV4 control valve and Cavitrol IV trim. Information on the flushing trim is also provided. Refer to separate manuals for information concerning the actuator, positioner, and other accessories used with this control valve.

Only personnel qualified through training or experience should install, operate, and maintain a Design CAV4 control valve. If you have any questions about these instructions, contact your Fisher Controls sales office or sales representative before proceeding.

The Design CAV4 control valve, shown in figure 1, is an angle valve with soft metal-to-metal seats, Cavitrol IV trim, cage guiding, and push-down-to-close valve plug action. Figure 8 shows a typical balanced TSO (tight shutoff) trim construction. Figure 10 shows three additional valve plug constructions that are available: one with a pressure-assisted spring-loaded PTFE seal ring with PEEK (poly ether ether ketone) anti-extrusion rings, another with five graphite piston rings, and a third with stem-balancing.

Cavitrol IV trim is most often used to eliminate cavitation damage on liquid service where the differential pressure drop is greater than 207 bar, differential (3000 psi). It may also be used in applications with lower pressure drops where its anti-cavitation performance is required. Figure 11 shows the valve with

D100384X012

Page 2

Design CAV4

Table 1. Specifications

Available Configurations and Valve Sizes

Common Characteristics: Four-stage Cavitrol IV

trim with soft metal-to-metal seats in Design CAV4 angle valve. Valve plug action is push-down-toclose Seal Ring Construction:  2,  3,  4, or  6 in. valve with pressure-balanced valve plug and springloaded PTFE seal ring. For use in low-temperature applications Stem-Balanced Construction:  2 or  4 in. valve with stem-balanced valve plug (valve stem diameter—for that portion of the stem that passes through the bonnet—is equal to the nominal port diameter). For use in high-temperature applications Piston Ring Construction: 6 in. valve with pressure-balanced valve plug and five graphite piston rings. For use in high temperature applications

Maximum Inlet Pressure, Temperature, and Pressure Drops

Consistent with ASME B16.34 Class 2500 pressure/ temperature ratings; but do not exceed the pressure, temperature, and pressure drop conditions specified when the valve was ordered. Also, see the

Installation

(1)

section in this manual

Shutoff Classification

TSO (Tight Shutoff) Trim: Valves with TSO trim

are factory tested to a more stringent Fisher Controls test requirement of no leakage at time of shipment using ANSI/ISA Class V procedures. Piston Ring Construction: Class IV per ANSI/FCI 70-2

All Others: Class VI per ANSI/FCI 70-2

Flow Direction

In through the side connection and out the bottom connection

Flow Characteristic

Linear

Port Diameters and Unbalance Area

See table 2, or table 3 for TSO trim

Minimum Seating Force

First refer to figure 2 to determine minimum seat load in lbf per inch of port circumference, then multiply that value by the port circumference from table 2, or table 3 for TSO trim

End Connection Style

Buttwelding Ends: All buttwelding end schedules

per ASME B16.25 that are compatible with ASME B16.34 valve body rating.

Raised-Face or Ring-Type Joint Flanged Ends:

Inlet connection is ANSI Class 2500 flange per B16.5. Outlet connection mates to ANSI Class 2500 flange and has tapped bolt holes with line flange studs

1. The pressure/temperature limits in this manual and any applicable standard or code limitation for the valve should not be exceeded.

flushing trim. Flushing trim consists of two plates installed prior to system flushing in order to protect Cavitrol IV trim and valve body gasket surfaces.

Earlier CAV4 control valves used hard metal-to-metal seats. The soft metal-to-metal seated version can be identified by the letters SMS stamped on the seat ring (key 35, figure 10) or lower cage assembly (key 2, figure 10).

Specifications

Specifications for the Design CAV4 control valve are shown in tables 1, 2, and 4.

Valve Plug Travel

See table 2

Yoke Boss and Valve Stem Diameters

See table 2

Approximate Weights

See table 4

Installation

Personal injury or system damage caused by sudden release of pressure may result if the valve assembly is installed where service conditions could exceed the limits given in table 1 and on the appropriate nameplates. To avoid such injury or damage, use pressure-relieving devices as required by applicable industry codes to prevent the service conditions from exceeding these limits.

WARNING

Page 3

Design CAV4

MAXIMUM

YOKE BOSS

PORT

INCH

AT 100%

INCH

Table 2. Additional Valve Specifications

VALVE SIZE,

INCH

2 3 19.0 3/4 91 3-9/16 51 2 55.6 2-3/16 174.5 6.87 6.6 0.26

6 31.7 1-1/4 127 5 & 5H 102 4 111.1 4-3/8 349.2 13.75 12.9 0.51

1. For seal ring and piston ring constructions. For stem-balanced construction, use port area of 11.4 cm2 (1.77 inch2) for 2 inch valve and 38.3 cm2 (5.94 inch2) for 4 inch valve.

2. Stem-balanced construction has 31.8 mm (1-1/4 inch) valve stem connection.

3. Stem-balanced construction has 50.8 mm (2 inch) valve stem connection.

VALVE SIZE,

1. Consult the factory for larger yoke boss sizes.

2. This column lists the percent reduction of published maximum CV of the trim listed in the TRIM column.

VALVE STEM

DIAMETER

mm Inch mm Inch mm Inch mm Inch mm Inch mm

19.0

38.1

19.0

25.4

69.8

TRIM

Class

2500

Class

2500

Class

2500

3/4

1-1/2

3/4

2-3/4

mm Inch mm Inch mm Inch mm Inch mm Inch

38 1-1/2

50.8 2 91 3-9/16 55.6 2-3/16 55.6 2-3/16 174.8 6.88 0%

64 2-1/2

(2)

(3)

YOKE BOSS

DIAMETER

3-9/16

127

127 178

TRAVEL

5 7

38 1-1/2 38.1 1-1/2 119.6 4.71 4.3 0.17

64 2-1/2 69.9 2-3/4 219.4 8.64 8.1 0.32

PORT

DIAMETER

CIRCUMFERENCE

Table 3. Additional Valve Specifications for TSO (Tight Shutoff) Trim

MAXIMUM YOKE BOSS

TRAVEL

127

SIZE

(1)

3-9/16

PORT DIAMETER

Nominal Actual TSO

38.1 1-1/2 38.1 1-1/2 119.6 4.71 0%

69.9 2-3/4 69.9 2-3/4 219.4 8.64 0%

PORT

CIRCUMFERENCE

UNBALANCE

AREA

REDUCTION

TRAVEL

(1)

Inch

(2)

Table 4. Approximate Weights

VALVE SIZE,

INCH

2 3 91 3-9/16 301 664 47 103 5 12 14 30 7 16

4 6 127 5 or 5H 1512 3334 240 530 44 98 84 186 54 120

YOKE BOSS

DIAMETER

mm Inch Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb

91 3-9/16 167 369 44 98 3 7 12 27 4 9

127 5 182 401 59 130 3 7 12 27 4 9

91 or 127 3-9/16 or 5 532 1172 127 280 12 27 37 82 12 27

178 7 554 1222 150 330 12 27 37 82 12 27

TOTAL

CAUTION

BONNET

ONLY

used; gaskets that are removed must not be reused. Use new gaskets upon as-

VALVE PLUG

AND STEM

ASSEMBLY

LOWER CAGE

ASSEMBLY

sembly.

When ordered, the valve configuration and construction materials were selected to meet particular pressure, pressure drop, temperature, and controlled fluid conditions. Do not apply any other conditions to the valve without first contacting your Fisher Controls sales office or sales representative.

If hoisting the valve, be sure the hoist used is capable of handling the weight of the valve and actuator. Also, be sure the sling does not damage the painted surfaces, is positioned securely to prevent swinging or slipping, and is positioned so as to cause no damage to tub-

ing or any accessories. Trim parts, seals, and gaskets may be damaged if post-weld buttweld heat treatment is applied to valve areas other than the end connections. If heat treatment will be performed over the entire valve body, seals and gaskets must be removed. Valve plug seals may be re-

1. The valve must be installed so that the actuator is positioned vertically above the valve body. This position reduces the possibility of uneven wear on the valve plug. Also, this position facilitates easier maintenance and prevents stem binding due to actuator weight.

UPPER

CAGE

Page 4

Design CAV4

A2922-1/IL

WARNING

Personal injury could result from pack-

ing leakage. Valve packing was tight-

ened prior to shipment; however, the

packing might require some readjust-

ment to meet specific service condi-

tions.

Flushing the Pipeline

Before flushing the piping system, install the Design CAV4 flushing trim (figure 11), if available, as described in the

Maintenance

Use of Flushing Trim

section.

procedure in the

Figure 2. Recommended Minimum Seat Load

for All Constructions

2. Be certain the valve body and adjacent pipelines are free of foreign materials that may damage valve seating surfaces.

3. If continuous operation of the system will be required during valve inspection and maintenance, install a conventional three-valve bypass around the point of valve installation.

Note

For longer service life and more effective operation, the process liquid must be clean. Impurities or entrained solids in the process liquid may cause irreparable erosion damage to the seating surfaces and may plug cage holes, 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.

4. Flow through the valve must be as indicated by the flow direction arrow on the valve body.

5. Use accepted piping practices when installing the valve in the pipeline. For flanged valves, remove the protective covering from the outlet flange studs, and use a suitable gasket between the valve and the pipeline flanges.

Principle of Operation

With Cavitrol IV trim, liquid flow enters the valve through the side connection and enters the cage through the top set of holes as shown in figure 3. No significant pressure drop occurs across the set of holes because the flow area is relatively large. As the liquid flows down through the cage, it undergoes four staged pressure drops by flowing through four additional sets of holes. All significant throttling action occurs in the four sets of holes down-stream of the seating surfaces. Flow leaves the valve through the bottom connection.

When the valve is partially open, the valve plug blocks some of the holes above the seating surfaces. A small amount of flow enters the blocked holes and flows out through the clearance between the cage and plug. Because all significant pressure drop is taken downstream of the seating surfaces, the clearance flow does not cavitate or cause erosion of the seating surfaces. Each of the four stages has a successively larger flow area, resulting in higher pressure drops across the first stages where there is no danger of the liquid pressure falling low enough to allow the formation of vapor bubbles that can cause cavitation.

Because more than 90 percent of the total valve pressure drop is across the first three stages, both the inlet pressure to the final stage and the pressure drop across the final stage are relatively low. A low inlet pressure and pressure drop at the final stage result in a pressure at the vena contracta (the lowest pressure reached in the flow stream) that is above the liquid vapor pressure. Maintaining this higher pressure at the vena contracta ensures that the liquid pressure does not fall below the vapor pressure, and thus cavitation does not occur.

Page 5

VALVE PLUG

UPPER CAGE

SEATING SURFACES

FOUR STAGED PRESSURE DROPS– ALL SIGNIFICANT THROTTLING AND PRESSURE REDUCTIONS OCCUR IN THESE ARES

W3671-3*/IL

Figure 3. Schematic of Design CAV4 Valve with

Cavitrol IV Trim

Design CAV4

WARNING

Avoid personal injury and property dam-

age from sudden release of process

pressure or bursting of parts. Before

performing any maintenance operations:

 Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal injury.

 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.

 Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure on both sides of the valve. Drain the process media from both sides of the valve.

 Vent the power actuator loading pressure, and relieve any actuator spring precompression.

 Use lock-out procedures to be sure that the above measures stay in effect while you work on the equipment.

 The valve packing box may contain process fluids that are pressurized,

when the valve has been removed from the pipeline.

Process fluids may spray out under pressure when removing the packing hardware or packing rings, or when loosening the packing box pipe plug.

even

Maintenance

Valve parts are subject to normal wear and must be inspected and replaced as necessary. Inspection and maintenance frequency depends on the severity of service conditions. This section includes instructions for packing lubrication, packing replacement, trim removal, trim replacement, and use of flushing trim.

Because of the care Fisher Controls takes in meeting all manufacturing requirements (such as heat treating and dimensional tolerances), use only replacement parts manufactured or furnished by Fisher Controls.

Key numbers used in these procedures are shown in figure 10, except where indicated.

Packing Lubrication

A lubricator or lubricator/isolating valve (figure 4) is available for use with PTFE-composition packing or other packings that require lubrication. If a lubricator or lubricator/isolating valve is used, it will be installed in place of the pipe plug (key 17) in the bonnet (key 12).

Use a good quality silicon-base lubricant. Packing used in processes with temperatures over 260C (500F) should not be lubricated. Be certain the lubricant is compatible with the process liquid. The frequency of lubrication depends upon the severity of the service conditions.

To operate the lubricator, simply turn the cap screw clockwise to force lubricant into the packing box. The lubricator/isolating valve operates the same way ex-

Page 6

Design CAV4

Table 5. Recommended Torque for Packing Flange Nuts

STEM DIAMETER MINIMUM MAXIMUM

mm Inch

19.1 3/4 41 30 61 45

25.4 1 61 45 91 67

31.8 1-1/4 81 60 122 90

38.1 1-1/2 61 45 91 67

69.9 2-3/4 81 60 122 90

Nm Lbfft Nm Lbfft

12A7837-A B1422-1*/IL

10A9421-A AJ5428-D A2160-2/IL

Figure 4. Optional Lubricator and Lubricator/Isolating Valve

cept the isolating valve must first be opened and then closed after lubrication is completed.

Packing Maintenance

For spring-loaded single PTFE V-ring packing (figure

5), the spring (key 23) maintains a sealing force on the packing. If leakage is noted around the packing follower (key 22), check to be sure the shoulder on the packing follower is touching the bonnet. If the shoulder is not touching the bonnet, tighten the packing flange nuts (key 15) until the shoulder is against the bonnet. If leakage cannot be stopped in this manner, replace the packing as described in the cedure.

For PTFE-composition or graphite ribbon/filament packing (figure 5), leakage around the packing follower may be stopped by tightening the packing flange nuts (key 15). If leakage cannot be stopped by tightening the nuts, replace packing as described in the

Replacement

procedure.

Packing Replacement

Packing

pro-

19.1 mm (3/4-INCH)

12A8173-A A2596-1/IL

14A7924-A A2928-1/IL

25.4 mm (1-INCH) OR

31.8 mm (1-1/4-INCH) STEM

0.102mm (0.004 INCH)

GRAPHITE PACKING FOR 31.8, 38.1, & 69.9 mm

(1-1/4, 1-1/2, & 2-3/4 INCH) STEM DIA

Figure 5. Packing Arrangements

Page 7

Design CAV4

Packing Replacement

Before performing any maintenance of the valve or packing: Isolate the control valve from the line pressure, release pressure from both sides of the valve body, and drain the process media from both sides of the valve. If using a power actuator, also shut-off all pressure lines to the power actuator, release all pressure from the actuator. Use lock-out procedures to be sure that the above measures stay in effect while you work on the equipment.

For spring-loaded PTFE V-ring packing (shown in figure 5), tighten the packing flange nuts (key 15) until the shoulder on the packing follower (key 22, figure 5) contacts the bonnet (key 12). If packing leakage still exists, replace the packing according to the numbered steps below.

If packing leakage exists with PTFE-composition or graphite ribbon/filament packing, first try to limit the leakage and establish a stem seal by tightening the packing flange nuts (key 15) to at least the minimum recommended torque in table 5. However, do not exceed the maximum recommended torque in table 5, or excessive friction may result.

If the packing is relatively new and tight on the stem, and if tightening the packing flange nuts does not stop the leakage, the valve stem may be worn or nicked so that a seal cannot be made. The surface finish of a new valve stem is 0.1 micro-meter (4 micro-inches) rms. If the leakage comes from the outside diameter of the packing, the leakage may be caused by nicks or scratches around the packing box wall. While replacing the packing according to the numbered steps below, inspect the valve stem and packing box wall for nicks or scratches. If the nicks or scratches cannot be removed by refinishing, replace the parts with new parts.

1. Remove the cap screws in the valve/actuator stem connector (not shown), and separate the two halves of the stem connector. Then exhaust all actuator pressure, if any was applied, and disconnect the actuator supply and any leakoff piping.

2. Unscrew the hex nuts (key 26) or the yoke locknut (not shown), and lift the actuator from the bonnet (key

12).

3. Loosen the packing flange nuts (key 15) so that the packing (key 19 or keys 29 and 13, figure 5) is not tight on the valve stem (key 4). Remove any travel indicator disc and stem locknuts from the valve stem threads.

CAUTION

When lifting the bonnet (key 12), be sure that the valve plug and stem assembly (key 4) remains on the seat. This will avoid damage to the seating surfaces as a result of the assembly dropping from the bonnet after being lifted part way out. The bonnet is easier to handle separately.

4. Unscrew the large hex nuts (key 27) that secure the bonnet (key 12) to the valve body. Carefully lift the bonnet off the valve stem. If the valve plug and stem assembly (key 4) starts to lift with the bonnet, tap the end of the stem down with a brass or similar hammer that will not deform the valve stem threads. Set the bonnet on a cardboard or wooden surface to prevent damage to the bonnet gasket surface.

5. Remove the upper bonnet gasket (key 6).

6. Cover the opening in the valve body to protect the gasket surface and to prevent foreign material from falling into the valve body cavity.

7. Remove the packing flange nuts (key 15), packing flange (key 16), upper wiper (key 21, figures 5 and 10, not used with graphite ribbon/filament packing), and packing follower (key 22). Carefully push out all the remaining packing parts from the valve side of the bonnet using a rounded rod or other tool that will not scratch the packing box wall.

8. Clean the packing box and these metal packing parts: packing follower (key 22), packing box ring (key

20), spring and special washer (keys 23 and 24, used with PTFE V-ring packing, figure 5) or lantern ring (key 23, used with other packing as shown in the figure 5 arrangements).

9. Inspect the valve stem threads for any sharp edges that might cut the packing. A whetstone or emery cloth may be used to smooth the threads if necessary.

10. Remove the protective covering from the valve body cavity, and install a new upper bonnet gasket (key 6). Then slide the bonnet (key 12) over the stem and onto the stud bolts (key 28).

11. Lubricate the stud bolt (key 28) threads and the faces of the hex nuts (key 27) with lubricant (key 18 or equivalent)(not necessary if new factory prelubricated hex nuts are used). Replace the washers and hex nuts, but do not tighten them. Torque the nuts in a crisscross pattern to no more than 1/4 of the nominal torque value specified in table 6. When all nuts are tightened to that torque value, increase the torque by 1/4 of the specified nominal torque and repeat the crisscross pattern. Repeat this procedure until all nuts are tightened to the specified nominal value. Apply the final torque value again and, if any nut still turns, tighten every nut again.

Page 8

Design CAV4

VALVE SIZE

Table 6. Valve Body-to-Bonnet Bolting Torque

VALVE SIZE,

INCHES

2 974 717 3 1058 780 4 1776 1310 6 2712 2000

TORQUE

Nm Lbfft

12. Install new packing and the metal packing box parts according to the appropriate arrangement in figure 5. Slip a smooth-edged pipe over the valve stem, and gently tamp each soft packing part into the packing box.

13. Slide the packing follower (key 22), wiper (key 21, not used with graphite ribbon/filament packing), and packing flange (key 16) into position. Lubricate the packing flange studs (key 14) and the faces of the packing flange nuts (key 15). Replace the packing flange nuts.

For spring-loaded PTFE V-ring packing, tighten packing flange nuts (key 15) until the shoulder on the packing follower (key 22) contacts the bonnet (key 12).

For other packing types, tighten the packing flange nuts (key 15) to the maximum recommended torque shown in table 5. Then loosen the packing flange nuts, and retighten them to the recommended minimum torque in the table.

14. Mount the actuator on the valve body assembly, and reconnect the actuator and valve stem according to the procedures in the appropriate actuator instruction manual. After the valve is returned to service, retighten the hex nuts (key 27) to the torques listed in table 6.

need to be refinished, or if the inside diameter of the lower cage has plugged holes, deep scratches, or other signs of wear, the cage retainer and lower cage assembly must be removed. A seat ring or lower cage assembly and cage retainer in good condition may both remain in the valve body.

A cage retainer tool is required to remove the cage retainer and lower cage assembly. If specifically ordered, a tool is supplied with the valve. It can also be ordered individually by referencing the tool part number included in the

Parts List

of this manual. A tool can also be machined for a specific valve using the dimensions shown in figure 6.

Note

Machine the tool from a material listed in figure 6, or from a material with a yield strength of at least 827 MPa (120,000 psi). Using a tool of lower strength may result in damage to the valve body threads.

CAUTION

Careful handling and installation of trim parts is extremely critical on all Design CAV4 valves. Any damage to gasket and seal surfaces of the cage or valve body, or valve plug and cage seating surfaces can result in leakage that can cause eventual damage to the cage and valve body due to erosion and cavitation.

Trim Removal

Note

The 3-inch CAV4 valve is a clamped-in trim design. No cage retainer is used. See figure 10. Therefore, if you are using these instructions for a 3-inch valve, disregard references to a cage retainer.

The valve trim consists of the valve plug and stem assembly (key 4), the valve plug rings, if used, (keys 8, 9, 10, 11, and 37), the upper cage (key 3), the cage retainer (key 5), the lower cage assembly (key 2), the separable seat ring (key 35, seal ring construction only), the upper and lower bonnet gaskets (key 6), and the cage gasket (key 7).

During trim removal, inspect the seating surface of the plug and lower cage or seat ring. Also inspect the inside diameter of the lower cage. If the seating surfaces

1. Remove the actuator (not shown), bonnet (key 12) and packing by following steps 1 through 7 of the

Packing Replacement

section.

CAUTION

When lifting the valve plug and stem assembly out of the valve body, be certain the upper cage (key 3) remains in the valve (key 1). This will prevent damage that might be caused by the upper cage dropping back into the valve after being lifted part way out. Use care to avoid damaging gasket sealing surfaces.

The 6-inch Design CAV4 graphite piston rings (key 11) are brittle and in two pieces. Use care to avoid damage to the piston rings caused by dropping or rough handling.

Page 9

Design CAV4

VALVE

SIZE,

VALVE

SIZE,

INCH

(1)

B C D E F

mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch

TOOL DIMENSIONS

2 9.7 .38 12.7 .50 38.1 1.50 12.7 .50 25.4 1.00 3 Not Applicable 4 11.2 .44 14.2 .56 36.6 1.44 15.8 .62 38.1 1.50

17.7

17.4

.695

19.1 .75 54.0 2.12 31.8 1.25 88.9 3.50

.685

1. Double dimensions indicate maximum and minimum values.

(1)

Dia G Dia H Dia I

86.1

85.6

143.3

142.8

201.7

201.5

3.390

3.370

5.640

5.620

7.942

7.932

74.7 2.94 88.9 3.50

127.0 5.00 145.8 5.74

182.6 7.19

205.7

205.5

8.100

8.090

18.8

18.5

25.2

24.9

25.2

24.9

(1)

92.1

(3.63)

.740 .730

.990 .980

A5495/IL

VALVE

SIZE, INCH

TORQUE

Nm Lbfft

2 1356 1000 3 N.A. N.A. 4 6100 4500 6 13,560 10,000

25A4066-D A2930-1/IL

48A6264-A A2929-1/IL

Figure 6. Information for Machining and Use of Cage Retainer Tool

Recommended

Materials

416 stainless steel

17-4PH stainless steel

4100 Series stainless steel, heat-treated

(INCH)

Minimum Rockwell

Hardness

Page 10

Design CAV4

OUTER PLUG

INNER PLUG

CAGE

PROTECTED SOFT SEAT

SEAT RING

A7088 / IL

Figure 7. TSO (Tight Shutoff) Trim, Detail of Protected Soft Seat

2. Pull the valve plug and stem assembly (key 4) out of the cages. Lay it on a protective surface in a safe location.

3. For stem-balanced valve plugs, proceed to step 4. For seal ring valve plugs, work the retaining ring (key

10) off the valve plug with a screwdriver. Carefully slide the backup ring (key 9), two-piece anti-extrusion ring (key 37), and seal ring (key 8) off the valve plug (key 4).

For piston-ring valve plugs, the graphite piston rings (key 11) are each in two sections. If the rings are worn and need to be replaced, remove the sections from the grooves in the valve plug (key 4).

For TSO (tight shutoff) trim, perform the following steps (refer to figures 7 and 8):

 Remove the piston ring, anti-extrusion rings,

backup ring, and retainer.

 Remove the set screws that lock the outer plug to

the inner plug.

 Using a strap wrench or similar tool, unscrew the outer plug from the inner plug. Do not damage the outer plug guide surfaces.

 Remove the protected soft seat seal.

thread type. Install eyebolts or similar devices into those holes, then carefully lift the upper cage out of the valve body.

5. Remove the lower bonnet gasket (key 6). If removal of the lower cage assembly is necessary,

use a cage retainer tool (figure 6) to remove the cage retainer (key 5) as follows:

a. Insert the tool into the valve body. Be certain the tool lugs are engaged in the corresponding recesses in the retainer.

CAUTION

Do not use an impact wrench to remove or install the seat ring retainer. Damage to cage retainer, valve body threads, and lower cage could result.

b. Use a power torque wrench having torque capabilities equal to or greater than those shown in figure 6. Connect the power torque wrench to a standard socket wrench extension or other suitable tool. This extension or tool must fit snugly into the square hole or hex head of the cage retainer tool. Refer to figure 6 for square hole and hex head sizes.

 Inspect the parts for damage and replace if needed.

4. The upper cage (key 3) has two tapped holes to aid in removal. Refer to table 7 for the hole diameter and

c. Insert the extension into the cage retainer tool.

d. Use the stud bolts (key 28) to prevent the power torque wrench from rotating.

Page 11

Design CAV4

Table 7. Hole Diameter and Thread Type for Cage Removal

Valve Size,

Inch

2 2 holes, 1/4-20 UNC - - 3 2 holes, 3/8-16 UNC 4 holes, 1/4-20 UNC 4 2 holes, 3/8-16 UNC 4 holes, 1/4-20 UNC 6 2 holes, 1/2-13 UNC 4 holes, 3/8-16 UNC

Upper Cage

CAUTION

Lower Cage

Assembly

VALVE PLUG SEAL

PROTECTED SOFT SEAT

A7089 / IL

Figure 8. Typical Balanced TSO Trim

CAUTION

Hold the power torque wrench and attached socket wrench extension at right angles to the cage retainer when applying torque. Tilting the wrench and extension while applying torque causes the lugs on the cage retainer tool to suddenly disengage from the recesses in the retainer, damaging the retainer and the lower cage assembly (key 2).

e. Remove the cage retainer (key 5). f. Remove the seat ring (key 35) and O-ring (key

36), if used.

6. The 4 and 6-inch lower cage assemblies (key 2) have tapped holes to aid in removal. Refer to table 7 for hole diameter and thread type. Install eyebolts or similar devices into these holes. Carefully lift the lower cage assembly (key 2) straight out of the valve body.

7. Remove the cage gasket (key 7).

The seat ring (key 35) or integral seat cage assembly (key 2) has a soft metal seat. To avoid damage to the seating surfaces, DO NOT lap this surface. If this area needs repair, contact your Fisher Controls sales representative or sales office for assistance.

Trim Replacement

Note

The 3-inch CAV4 valve is a clamped-in trim design. No cage retainer is used. See figure 10. Therefore, if you are using these instructions for a 3-inch valve, disregard references to a cage retainer.

After all trim maintenance has been completed, reassemble the trim by following the steps below.

Be certain that all gasketed surfaces are clean. Use new gaskets (keys 6 and 7) during assembly.

1. If the lower cage assembly (key 2) and cage retainer (key 5) remained in the valve body (key 1), proceed to step 4.

If these parts were removed, read the following caution and proceed to step 2:

CAUTION

To avoid galling or improper gasket loading that may result in leakage, thoroughly clean the threads and the gasket surfaces in the valve body (key 1), the valve body bore, and the cage retainer (key 5). Lubricate the surfaces indicated in figure 9 with the appropriate lubricant. Be certain to lubricate all of the following mating surfaces:

 cage retainer and valve body

threads,

 bottom of the cage retainer and top of the flange on the lower cage assembly.

Page 12

Design CAV4

LUBRICATION REQUIRED, USE BELL-RAY MOLYLUBE NO. 80, DOW CORNING MOLYKOTE, OR NEVER-SEEZ PURE NICKEL SPECIAL, OR EQUIVALENT.

48A6264-A A2935-1/IL

Figure 9. Trim Surfaces Requiring Lubrication

and Recommended Lubricants

Do not lubricate the gasket surfaces. Position the valve vertically and careful-

ly lower the lower cage assembly into the valve body. When inserting the assembly, use an even motion; do not rock the lower cage assembly while installing it. Use care to avoid damaging the cage gasket (key 7).

2. Install a new cage gasket (key 7), and insert the lower cage assembly (key 2) into the valve body. If installing the separable seat ring (key 35), first install the O-ring (key 36) around the bottom diameter of the seat ring.

3. Thread the cage retainer (key 5) into the valve body. Use the cage retainer tool (figure 6) to tighten the cage retainer as follows:

a. Insert the tool into the valve body. Be certain the tool lugs are engaged in the corresponding recesses in the retainer.

CAUTION

Do not use an impact wrench to remove or install the seat ring retainer. Damage to cage retainer, valve body threads, and lower cage could result.

b. Use a power torque wrench having torque capabilities equal to or greater than those shown in figure

6. Connect the power torque wrench to a standard socket wrench extension or other suitable tool. The extension or tool must fit snugly into the square hole or the hex head of the cage retainer tool. Refer to figure 6 for square hole or hex head sizes.

c. Insert the extension into the cage retainer tool.

d. Use the stud bolts (key 28) to prevent the power torque wrench from rotating.

CAUTION

e. Tighten the cage retainer (key 5) to the torque shown in figure 6.

4. Install a new lower bonnet gasket (key 6), and insert the upper cage (key 3). Be sure the lugs on the bottom of the cage engage the corresponding slots in the cage retainer (key 5).

Note

Rotate the upper cage (key 3) clockwise by hand as much as possible once the cage lugs engage the slots in the cage retainer (key 5). Failure to do so may result in slight seat leakage.

5. For stem-balanced valve plug, proceed to step 6. For piston ring valve plug, if installing new graphite

piston rings (key 11), each replacement ring will arrive in one piece. Use a vise with smooth jaws to break this replacement ring into halves. Place the new ring in the vise so that the jaws will compress the ring into an oval. Slowly compress the ring until the ring snaps on both sides. If one side snaps first, do not try to tear or cut the other side. Instead, keep compressing the ring until the other side snaps.

With the valve plug and stem assembly (key 4) on a protective surface, place the piston rings in the piston ring grooves with the fractured ends matched. Rotate the rings in the grooves so that all the matched ends are at different points around the plug circumference.

For seal ring valve plug, install the seal ring (key 8) with the open side facing the four flutes on the valve plug. Slide the 2-piece anti-extrusion ring (key 37) and the backup ring (key 9) onto the valve plug. Secure with the retaining ring (key 10).

Page 13

Design CAV4

For TSO (tight shutoff) trim, perform the following steps (refer to figures 7 and 8).

 Thread the outer plug onto the inner plug until the parts seat metal to metal, using a strap wrench or similar tool that will not damage the outer plug guide surfaces.

 Mark the top of the inner plug and outer plug with alignment marks in the assembled position.

 Disassemble the outer plug from the inner plug and install the seal over the inner plug, so that the seal rests below the threaded area.

 Thread the outer plug onto the inner plug and tighten with a strap wrench or similar tool until the alignment marks line up. This will ensure that the plug parts are metal to metal and the seal is compressed properly. Do not damage the outer plug guide surfaces.

 Install set screws centering the inner plug in the outer plug and torque to 11 Nm (8 lbfft).

CAUTION

The soft metal seat life can be seriously shortened if the following step is not carefully completed.

12. Isolate the valve from the process and stroke the plug at least three times with maximum actuator force to seat the plug surface against the soft metal seat.

Use of Flushing Trim

Install the flushing trim (figure 11) prior to system flushing in order to protect the Cavitrol IV trim and the valve body gasket surfaces.

Gaskets (keys 6 and 7) that have not been in service (i.e., original gaskets in a Design CAV4 valve being installed or new gaskets for a valve already installed) may be used with the flushing trim.

Key numbers referenced in this section are shown in figure 11, unless otherwise indicated.

 Assemble the piston ring, anti-extrusion rings, backup ring, and retainer.

6. Slide the valve plug and stem assembly (key 4) into the cages.

7. Place a new upper bonnet gasket (key 6) onto the upper cage (key 3) as shown in figure 10.

8. Install the bonnet (key 12) over the valve stem and onto the valve body (key 1).

9. Lubricate the threads of the studs (key 28) and the faces of the hex nuts (key 27) with lubricant (key 18 or equivalent)(not necessary if new factory prelubricated hex nuts are used). Replace the washers and hex nuts but do not tighten them. Torque the nuts in a crisscross pattern to no more than 1/4 of the nominal torque value specified in table 6. When all nuts are tightened to that torque value, increase the torque by 1/4 of the specified nominal torque and repeat the crisscross pattern. Repeat this procedure until all nuts are tightened to the specified nominal value. Apply the final torque value again and, if any nut still turns, tighten every nut again.

10. Install new packing and packing box parts per steps 12 and 13 of the

11. Mount the actuator by following the procedures in the appropriate actuator instruction manual. Check for packing leakage as the valve is being put into service. Retighten packing flange nuts as required. After the valve is returned to service, retighten the hex nuts (key

27) to the torque listed in table 6.

Packing Replacement

section.

1. Remove the actuator, and disassemble the valve body by completing steps 1 and 2, and 4 through 7 of the

Trim Removal

2. Install the lower flushing plate (key 31).

3. Thread the cage retainer (key 5) into the valve body hand-tight.

4. Install the lower bonnet gasket (key 6), the upper flushing plate (key 30), and the upper bonnet gasket (key 6).

5. Place the bonnet (key 12, figure 10) on the valve body. Lubricate the threads of the studs (key 28) and the faces of the hex nuts (key 27) with lubricant (key 18 or equivalent) (not necessary if new factory prelubricated hex nuts are used). Replace the washers and hex nuts but do not tighten them. Torque the nuts in a crisscross pattern to no more than 1/4 of the nominal torque value specified in table 6. When all nuts are tightened to that torque value, increase the torque by 1/4 of the specified nominal torque and repeat the crisscross pattern. Repeat this procedure until all nuts are tightened to the specified nominal value. Apply the final torque value again and, if any nut still turns, tighten every nut again.

6. After system flushing is completed, remove the bonnet (key 12) and bonnet gaskets (key 6), upper flushing plate (key 30), cage retainer (key 5), lower flushing plate (key 31), and cage gasket (key 7).

7. Assemble the valve as described in the

placement

procedure.

Trim Re-

Page 14

Design CAV4

Parts Ordering

Each valve body-bonnet assembly is assigned a serial number, which can be found on the valve body. This same number also appears on the actuator nameplate when the valve is shipped from the factory as part of a control valve assembly. Refer to the number when contacting your Fisher Controls sales office or sales representative for technical assistance or when ordering replacement parts.

When ordering replacement parts, also be sure to include the 11-character part number from the following parts kits or parts list information.

Parts Kits

The following kits are available for repairing non liveloaded packing on valves with 19.1 mm (3/4 inch) stems. Stems and packing box constructions not supplied by Fisher Controls and that do not meet Fisher Controls stem finish specifications, dimensional tolerances, and design specifications, may adversely alter the performance of these packing kits. These kits do not apply to special alloy constructions.

Packing, 19.1 mm (3/4 inch) stem Kit

Single PTFE V-ring RPACKX00032 Double PTFE-composition RPACKX00092 Double Graphite Ribbon/Filament RPACKX00182

Parts List

Key Description Part Number

Flushing Trim Kit (incl. keys, 6, 7, 30, & 31)

2 inch RCAV4X00022 4 inch RCAV4X00042 6 inch RCAV4X00062

Nameplate Wire (use when actuator is

not furnished) (not shown) 1D884799012 Drive Screw, stainless steel (4 req’d) 1A368228982 Cage Retainer Assembly Tool, S41600

(heat-treated 416 stainless steel, not shown)

2 inch 26A5496X012 4 inch 28A2828X012 6 inch 25A4066X012

1 Valve Body

If you need a valve body as a replacement part, order by valve size, serial number, and desired material.

2* Lower Cage Assembly, HT

S17400 [17-4PH stainless steel (SST)]/S31600 (316 SST)

Standard Hi Temp

2 inch 31B9641X012 4 inch 31B7696X012 6 inch 31B9652X012

S17400 [17-4PH stainless steel (SST)]/S31600 (316 SST)

Characterized Hi Temp

2 inch 31B9641X022

Key Description Part Number

2* Lower Cage Assembly, HT(cont’d)

4 inch 31B7696X022 6 inch 31B9652X022

S17400 (17-4PH SST) H1075

Standard Lo Temp

2 inch 31B9642X012 3 inch 37B9440X012 4 inch 31B9649X012 6 inch 31B9653X012

Characterized Lo Temp

2 inch 31B9642X032 3 inch 37B9440X022 4 inch 31B9649X022 6 inch 31B9653X022

3* Upper Cage, HT

S17400 (17-4PH SST)

Seal Ring Construction

2 inch 48A2824X012 3 inch 47B9383X012 4 inch 48A1974X012

Stem Balanced Construction

2 inch 48A2820X012 4 inch 48A1970X012

Seal Ring/Piston Ring Construction

6 inch 38A1946X012 4* Valve Plug & Stem Assembly See following tables 5* Cage Retainer, heat-treated, tables chrome S17400

(17-4PH stainless steel)

2 inch 26A5302X042

4 inch 28A1966X012

6 inch 38A1955X012 6* Bonnet Gasket, silver pl Monel (2 req’d)

2 inch 26A5320X012 3 inch 26A5322X012 4 inch 28A1981X012 6 inch 25A3965X012

7* Cage Gasket, S31600 (316 SST)/Graphite

2 inch 11B4909X012 3 inch 17B9382X012 4 inch 11B2024X012 6 inch 11B2026X012

8* Valve Plug Seal Ring, graphite filled PTFE cover

w/Elgiloy spring (for seal ring construction)

2 inch 13A8521X082 3 inch 16A1968X032 4 inch 13A8534X062 6 inch 10A4223X112

9 Valve Plug Back Up Ring, S41600

(416 stainless steel) (for seal ring construction)

2 inch 11B9300X022 3 inch 16A1967X022 4 inch 11B8676X012 6 inch 11B9659X012

10* Retaining Ring, stainless steel (for seal ring construction)

2 inch 13A8519X012 3 inch 16A1969X012 4 inch 13A8532X012 6 inch 10A4225X012

11* Piston Ring, graphite (5 req’d) for

piston ring construction 1U2392X0012

12 Bonnet

If you need a bonnet as a replacement

part, order by valve size and stem diameter, serial number, and desired material.

13* Packing Ring See following table

*Recommended spare parts

Page 15

Design CAV4

APPLY LUB

48A1976-C 42B1327-A/DOC

48A1975-C/DOC

FLANGED BODY OUTLET

VIEW A

SEAL RING CONSTRUCTION

ALL SIZES

DETAIL OF CLAMPEDIN LOWER CAGE

FOR 3INCH VALVE

48A1975-C/DOC

DETAIL OF PISTON RING CONSTRUCTION

6 INCH VALVE ONLY

Figure 10. Design CAV4 Control Valve with Cavitrol IV Trim

LOWTEMP

CAGE ASSEMBLY

48A1977-C/DOC48A1976-C/DOC

DETAIL OF STEM BALANCED

CONSTRUCTION 2 & 4 INCH VALVES

Page 16

Design CAV4

38A2844-A/DOC

Figure 11. Flushing Trim

Key Description Part Number

14 Packing Flange Stud Bolt, SA-193-B7/steel (2 req’d)

90 mm (3-9/16 inch) yoke boss

19.1 mm (3/4 inch) stem 1E944931032

127 mm (5 inch) yoke boss

25.4 mm (1 inch) stem 0V002531032

31.8 mm (1-1/4 inch) & 38.1 mm (1-1/2 inch) stem 0W086931032

127 mm (5H inch) yoke boss

31.8 mm (1-1/4 inch) stem 0W086931032

178 mm (7 inch) yoke boss

69.9 mm (2-3/4 inch) stem 0X0904X0022

15 Packing Flange Hex Nut, SA-194-2H/steel

[2 req’d, except 4 req’d on 178 mm (7 inch) yoke boss]

90 mm (3-9/16 inch) yoke boss

19.1 mm (3/4 inch) stem 1E944624112

127 mm (5 inch) yoke boss

25.4 mm (1 inch) stem 1A343324112

31.8 mm (1-1/4 inch) & 38.1 mm

(1-1/2 inch) stem 1A368124112

127 mm (5H inch) yoke boss

31.8 mm (1-1/4 inch) stem 1A368124112

178 mm (7 inch) yoke boss

69.9 mm (2-3/4 inch) stem 1A368124112

16 Packing Flange

Steel

90 mm (3-9/16 inch) yoke boss

19.1 mm (3/4 inch) stem 1E944823072

Key Description Part Number

16 Packing Flange (cont’d)

127 mm (5 inch) yoke boss

25.4 mm (1 inch) stem 0V002425052

31.8 mm (1-1/4 inch) stem 0W085625052

127 mm (5 inch) yoke boss

31.8 mm (1-1/4 inch) stem 0W085625052

S31600 (316 SST)

127 mm (5 inch) yoke boss

38.1 mm (1-1/2 inch) stem 18A2839X012

178 mm (7 inch) yoke boss

69.9 mm (2-3/4 inch) stem 14A7910X012

17 Pipe Plug

Steel (for WCB steel bonnets) 1A767524662 S31600 (316 SST)

(for all other bonnets) 1A767535072

18 Never Seez Nickel Special Lubricant,

or equivalent (not furnished with the valve) 19* Packing Set See following table 20* Packing Box Ring See following table 21* Upper Wiper See following table 22 Packing Follower See following table 23 Packing Spring See following table 23 Lantern Ring See following table 24 Special Washer See following table 25 Stud Bolt, steel (8 req’d)

127 mm (5 inch) yoke boss

25.4 mm (1-inch) stem 1J6981X0122

31.8 mm (1-1/4 inch) & 38.1 mm (1-1/2 inch) stem 1J698131012

127 mm (5H inch) yoke boss

31.8 mm (1-1/4 inch) stem 1R369031012

178 mm (7 inch) yoke boss

69.9 mm (2-3/4 inch) stem 1R369031012

26 Yoke Locknut (not shown)

90 mm (3-9/16 inch) yoke boss,

19.1 mm (3/4 inch) stem 1E832723062

26 Hex Nut, steel (8 req’d)

127 mm (5 inch) yoke boss 1A343324112

25.4 mm (1-inch) stem 1A343324122

127 mm (5H inch) & 178 mm (7 inch) yoke boss

31.8 mm (1-1/4 inch) & 69.9 mm (2-3/4 inch) stem 1A368124112

27 Hex Nut, steel (SA-194-2H)

2 inch (8 req’d) 1A445324072 3 inch (8 req’d) 1D716724072 4 inch (8 req’d) 1A501124072 6 inch (12 req’d) 1N850524072

28 Stud Bolt, steel (SA-193-B7)

2 inch (8 req’d) 16A5325X012 3 inch (8 req’d) 15A5490X012 4 inch (8 req’d) 12A5151X022

6 inch (12 req’d) 18A1978X012 29* Packing Rings See following table 30 Upper Flushing Plate, steel

2 inch 28A3787X012

4 inch 28A3784X012

6 inch 28A2838X012 31 Lower Flushing Plate, steel

2 inch 18A3788X012

4 inch 18A3785X012

6 inch 18A3786X012 32 Line Flange Studs (8 req’d), steel (SA-193-B7)

2 inch 1R588731012

4 inch 13A5056X012

6 inch

For RF flanged 18A4175X012 For RTJ flanged 18A4179X012

*Recommended spare parts

Page 17

Design CAV4

VALVE SIZE

(1)

Key Description Part Number

33 Yoke Locknut, steel [for 19.1 mm (3/4 inch) stem only]

(not shown) 1E832723062

35* Seat Ring

S31600 (316 SST)

35* Seat Ring, HT

36* O-Ring, EPT

37* Anti-Extrusion Ring, PEEK/Carbon

3 inch 27B6291X012

S17400 (17-4PH SST)/S31600 (316 SST)

2 inch 21B9640X032 4 inch 21B9647X022 6 inch 31B9650X022

2 inch 1K1365X0082 4 inch 1N9563X0032 6 inch 12A3793X012

2 inch 21B9339X012 3 inch 27B1174X012 4 inch 21B2025X012 6 inch 21B9341X012

Key 4* Valve Plug & Stem Assembly

VALVE STEM

VALVE SIZE,

INCH

1. See Actuator Groups (by Type Number) table for appropriate actuator group.

2. Valve stem material is 316 stainless steel, except for 17-4PH stainless steel 19.1 mm (3/4 inch) stem in the 4-inch valve body.

DIAMETER

mm Inch mm Inch

19. 1

25. 4

31. 8

38. 1

69. 9

31. 8

VALVE PLUG

TRAVEL

3/4 38 1-1/2 Group 1 42B0593X022 42B0594X022

3/4 51 2 Group 1 47B9380X022 - - -

3/4

2-1/2

102

1-1/4

10244

1-1/2 38 1-1/2

64642-1/2

2-3/4

1-1/4 102 4

Groups 1, 402 & 403

2-1/2

Group 100

2-1/2

Groups 101 & 405

2-1/2

Group 406

Group 407 Groups 408 & 409

Group 100 Group 101

Type 657 Size 80

2-1/2

Type 470 Series Size 130 & Group 408

Group 407 Groups 408 & 409

ACTUATORS

Seal Ring Construction

Stem-Balanced Construction

Piston Ring Construction

Key Description Part Number

39 Spiral Wound Gasket, N06600/17N3

3 inch 17B9381X012

TSO (Tight Shutoff) Trim Parts

2* Cage Assembly See following table 5* Cage Retainer See following table 3* Upper Cage See following table

35* Seat Ring See following table

4* Plug/Stem Assembly See following table 8* Seal Ring See following table

37* Anti-Extrusion Ring See following table

9* Back Up Ring See following table

10* Retaining Ring See following table

Heat Treated

440C Stainless Steel

41B8678X022 42B0595X022 42B0595X032 42B0595X042

42B0600X022 42B0600X032

38A2821X022 38A2821X032

38A1967X022 38A1967X032

42B0602X022 42B0602X032

VALVE PLUG MATERIAL

S31600 (316 SST) Stainless Steel

w/CoCr-A Seat/Guide

42B0597X022 42B0598X022 42B0598X032 42B0598X042

42B0601X022 42B0601X032

(2)

- - -

*Recommended spare parts

Page 18

Design CAV4

PORT

TRAVEL

ACTUATOR

CHARAC-

PORT

TRAVEL

ACTUATOR

CHARAC-

Keys 2*, 5*, 3*, 35*, 4*, 8*, 37*, 9*, and 10* TSO Trim Parts for Design CAV4 Valves

VALVE

SIZE,

INCH

PORT, TRAVEL

INCH

, INCH

STEM

DIAMETER mm Inch

2 1-1/2 1-1/2 19.1 3/4 1

3 2-3/16 2 19.1 3/4 1

19.1 3/4 1, 402, 403

4 2-11/16 2-1/2

25.4 1

VALVE

SIZE,

INCH

PORT, TRAVEL

INCH

, INCH

STEM

DIAMETER mm Inch

2 1-1/2 1-1/2 19.1 3/4 1

3 2-3/16 2 19.1 3/4 1

19.1 3/4 1, 402, 403

4 2-11/16 2-1/2

25.4 1

1. Trim 810.

ACTUATOR CHARAC-

GROUP

TERISTIC

Std

Characterized

Std

Characterized

Std

Characterized

100

101, 405

406

ACTUATOR CHARAC-

GROUP

Std

Characterized

Std

Characterized

Std

Characterized

TERISTIC

Std

Characterized

Std

Characterized

Std

Characterized

100

101, 405

406

Std

Characterized

Std

Characterized

Std

Characterized

KEY 2 KEY 5 KEY 3 KEY 35 KEY 4

Cage

Assembly

31B9642X012 31B9642X032

37B9440X012 37B9440X022

31B9649X012 31B9649X022

KEY 8 KEY 37 KEY 9 KEY 10

Seal Ring

13A8521X092 21B9339X012 11B9300X022 13A8519X012

16A1968X052 27B1174X012 16A1967X022 16A1969X012

13A8534X072 21B2025X012 11B8676X012 13A8532X012

(1)

Cage

Retainer

Upper Cage Seat Ring

Plug/Stem Assembly

26A5302X012 48B0292X012 38B0293X012 38B0289X012

- - - 38B1295X012 38B1296X012 38B0296X012

38B1301X012

38B0288X012

28A1966X012 44B1770X012 34B1773X012

38B0288X022

38B0288X032

Anti-Extrusion

Ring

Back Up Ring

Retaining

Ring

*Recommended spare parts

Page 19

Packing Set / Packing Parts

Single PTFE

V Ring

Ribbon/Fil

657 & 667—76.2 mm (3 inch) maximum travel

Group 406

Group 100

471

408

657

657 4 MO

Packing set 1R290401012 1R290601012 1R290801012 - - - - - -

Single PTFE V-Ring Packing

Single PTFE V-Ring Packing Parts

Double PTFE-composition Packing Parts

Double Graphite Packing Parts

Common Parts

amen

1. Included in packing set.

2. Comes with washer.

Packing ring Lower wiper Male adaptor Female adaptor

Packing spring, S31600 (316 stainless steel) 23 1F125637012 1D582937012 1D387437012 - - - - - Special washer, S31600 (316 stainless steel) 24 1F125036042 1H982236042 1H995936042 - - - - - Packing ring, PTFE-composition (8 req’d) 19* 1E319101042 1D7518X0012 1D7520X0012 - - - - - Lantern ring, stainless steel 23 0N028435072 0U099735072 0W087135072 - - - - - -

Packing ring Lantern ring, stainless steel 23 - - - - - - 0W087135072 18A2825X012 24A7912X012

Packing ring, graphite filament 29* - - - - - -

Packing box ring Upper wiper, felt (not req’d for

graphite ribbon/filament packing) Packing follower S31600 (316 stainless steel) 22 1E944735072 1H982335072 1H998435072 12A8925X012 24A7911X012 Warning Tag - - - 11B9513X012

DESCRIPTION KEY

(1)

, PTFE (3 req’d) 1C752801012 1C752901012 1D387601012 - - - - - -

(1)

, PTFE

(1)

, PTFE

(1)

, PTFE 1F124201012 1H982401012 1H995701012 - - - - - -

(2)

, graphite ribbon (3 req’d) 13* - - - - - - 1V5666X0022 18A2830X012 14A7915X012

S31600 (316 stainless steel)

19*

20* 1J873335072 1J873435072 1J873535072 16A6087X012 14A7913X012

21* 1J872806332 1J872906332 1J873006332 - - - - - -

Design CAV4

STEM DIAMETER, mm (INCH)

19.1 (3/4) 25.4 (1) 31.8 (1-1/4) 38.1 (1-1/2) 69.9 (2-3/4)

1J872306992 1J872406992 1J872506992 - - - - - -

1F124601012 1H982501012 1H995801012 - - - - - -

1D7520X0162

(5 req’d)

14A1933X022

(4 req’d)

14A7914X012

(4 req’d)

Actuator Groups (by Type Number)

90.5 mm (3-9/16 Inch) Yoke Boss

470 Series—50.8 mm (2 inch) maximum travel 657 & 667—76.2 mm (3 inch) maximum travel

1008—Except with 50.8 mm (2 inch) travel

127 mm (5 Inch) Yoke Boss

90.5 mm (3-9/16 Inch) Yoke Boss

Group 1

472 & 473

Group 100

470 471 472 473 474 475 476 657

1008

Group 101

667

Group 401

657

657 MO

657-4

657-4 MO

667

667 MO

127 mm (5 Inch) Yoke Boss

Group 405

657 MO

657-4 MO

Group 406

127 mm (5 Inch) Yoke Boss

667 MO

667-4 MO

Group 407

127 mm (5 Inch) Yoke Boss

470 471 474 475 657

roup

127 mm (5H) & 178 mm (7 Inch) Yoke Boss

657 Size 100

1008

Group 409

127 mm (5H) & 178 mm (7 Inch) Yoke Boss

667 Size 100

*Recommended spare parts

Page 20

Design CAV4

Cavitrol, Fisher, Fisher-Rosemount, and Managing The Process Better are marks owned by Fisher Controls International, Inc. or Fisher-Rosemount Systems, Inc. All other marks are the property of their respective owners.

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.

For information, contact Fisher Controls:

Marshalltown, Iowa 50158 USA Cernay 68700 France Sao Paulo 05424 Brazil Singapore 128461

Printed in U.S.A.