298T-81~296-81 Actuator Instruction Manual

Page 1 — Types 298T-81 & 296-81

INSTRUCTION MANUAL and PARTS LIST Types 298T-81 & 296-81 Actuator With "AR" or "KR" Body

INDEX TYPE NUMBER IDENTIFICATION ....................................... PAGE 2 PRINCIPLE OF OPERATION ............................................... PAGE 2 ADJUSTMENTS ................................................................. PAGE 3 MAINTENANCE, ACUATOR .................................................. PAGE 3 BODY ........................................................ PAGE 4 REPLACING SEAT RINGS ................................................... PAGE 5 TO CONVERT A TYPE 298T ................................................ PAGE 6 PARTS REFERENCE ........................................................... PAGE 7, 8

MOUNTING BAR

Type 298T-KR-81

PRINTED IN U.S.A. 5M 4-67 JSS

FISHER CONTROLS COMPANY

Marshalltown, Iowa

Coraopolis, Pa.

Woodstock,Ont.,Can.

Toluca, Mexico

FORM 1885

Page 2 — Types 298T-81 & 296-81 TYPE NUMBER IDENTIFICATION When used with either a Design AR or KR body and a Type 81 pilot, the 298T or 296 become fail open regulators used to provide accurate control for gas distribution systems. The table below gives the specifications for each actuator.

TABLE 1 Actu ator Actu ator Type S iz e

M aximu m Inlet P re s s .

Redu ced P re s s .

Range

Pilot

Body S tyle and S iz e

298T

30, 40 50, 60

250

5 " W.C. To 8 .6 psi

81

"AR", "KR" 1" - 8"

296

60 50

250

7 " W.C. To 2 6 psi

81

"AR", "KR" 1½ " - 8"

PRINCIPLE OF OPERATION A Type 67FR reduces inlet pressure to the correct pilot supply pressure. The supply pressure is controlled between the fixed restriction in the pilot supply pressure line and the pilot valve, and is applied between the pilot diaphragms, and on the underside of the main regulator diaphragm. The force developed by this loading pressure is opposed by the main regulator spring.

A downstream pressure build-up registers on top of the upper pilot diaphragm, causing the pilot valve to close. This increases pressure in the diaphragm chamber, compressing main regulator spring, so that the main valve plug moves closer to the seat, reducing flow to the downstream system.

When downstream demand increases, the pilot unloads the main diaphragm so that the spring forces the valve plug away from the seat, increasing flow to the downstream system. The pilot can unload the main diaphragm faster than it can be loaded through the restriction in the pilot supply pressure line.

The upper diaphragm casing is vented to atmosphere.

INSTALLATION (See Cover Illustration and Figure 1.)

If the valve body has screwed end connections, apply pipe compound to the pipeline threads before making the installation. If the body has flanged end connections, draw the bolts up evenly when installing.

Install the valve with flow in the body. It is suggested that a bypass line be built around the main regulator, as shown.

CONTROL LINE CONNECTIONS Run a line from the upstream main line to the supply inlet of the 67FR and from the pilot control line connection to the downstream main pipeline. This connection should be at least three feet from the outlet of the control valve. Control piping should be at least 1/2 inch, and a globe valve should be installed in both the pilot and downstream control lines. Close both of these until the unit is ready to go into operation.

To complete the installation, use the piece of tubing furnished, and make the loading pressure connection from the pipe tee between the pilot and the 67F to the connection on the adaptor piece of the actuator. See Figure 2.

TO PUT INTO OPERATION When the control valve is ready to go into service, follow this procedure. Open and close valves slowly.

1.

2.

3.

4.

5.

Open Open Open Open Close

supply line needle valve. upstream manual valve. the downstream, manual valve. the downstream control line needle valve. by-pass line valve.

Dwg. CR6465

GLOBE VALVE OR PLUG COCK

GLOBE VALVE OR PLUG COCK

GATE VALVE OR PLUG COCK

BY PASS LINE

GATE VALVE OR PLUG COCK

INLET PRESSURE

REDUCED PRESSURE

LOADING PRESSURE

PILOT SUPPLY PRESSURE

Figure 1—Operation and Installation of 298T-81 or 296-81

Page 3 — Types 298T-81 & 296-81

ADJUSTMENTS

CONTROL LINE CONNECTION

Type 298T The only adjustment for the Type 298T is on the Type 81 pilot. To make this adjustment, remove the pilot closing cap (Key 5, Figure 6) and rotate the adjusting screw. Turning it clockwise increases the controlled pressure setting; turning it counterclockwise reduces the controlled pressure setting.

SUPPLY INLET

Type 296 To adjust the 296, follow the procedure outlined above for the 298T. In addition, refer to the table below for proper setting of the main regulator adjusting screw. Before the main regulator adjusting screw can be set, the closing cap (Key 9, Figure 5) must be removed. See Table Below.

LOADING PRESSURE CONNECTION

MAINTENANCE

Dwg. CN9906

Figure 2—Pilot and 67F Connections

Before attempting any maintenance, be sure to set the bypass valves so that the regulator is isolated from flow, and that all pressure is out of the valve body and actuator. Also, close the needle valve in the pilot supply line and in the downstream control line.

Type 298T To disassemble the regulator, follow the procedure outlined below. See Figure 3.

1. Remove the pilot, pilot tubing (Key 27), mounting bar (Key 33) and differential pressure tubing (Key 25).

2. Remove screws (Key 55) which hold on travel indicator cover (Key 54), and take off cap (Key 9) and gauge glass (Key 45).

3. Unscrew travel indicator nut (Key 34) and remove it, and travel indicator disk (Key 48).

4. Loosen the closing cap (Key 8), relieving spring tension.

5. Take off the diaphragm case cap screws and nuts (Key 29 & 30) and remove the diaphragm case (Key 1) and spring case (Key 7).

6. To replace the spring case gasket (Key 12) separate the diaphragm and spring case.

7. Unscrew travel indicator stem (Key 26) from valve stem (Key 5).

8. Remove the stem nut (Key 18), stem locking clamp (Key 16).

9. Now revolve the diaphragm-diaphragm head assembly so that it unscrews from the valve stem (Key 5).

10. Next, remove set screws (Key 39), separate the diaphragm (Key 3), diaphragm head (Key 4) and adaptor (Key 14). Check the diaphragm and O ring (Key 20) and replace if necessary.

11. To inspect the seal bushing (Key 19) and seal bushing O ring (Key 38), remove the travel stop (Key 23), and retaining ring (Key 22). It may be necessary to take the distance piece (Key 32) off the valve body before the bushing can be removed.

12. Before reassembling, check the closing cap O ring (Key 10) and travel indicator closing cap O ring (Key 56).

TABLE 2 Adjusting Screw Selection Chart, Type 296 Spring Rate Lb/IN

Adjusting Screw Dimension

Spring Drawing Number

Height And Size of Adjusting Screw

Color Code 5/8" Travel

3/4" Travel

7/8" Travel 1 1/8" Travel 1 1/2" Travel

40 1F7142 Alum. & Lt. Green 7/8 Long 1 Long 1 1/8 Long 1 3/8 Long 1 3/4 Long 70 1F1729 Alum. & Yellow 1 7/8 Long 2 Long 2 1/8 Long 2 3/8 Long 2 3/4 Long 140 1H6751 Alum. & Tan 2 5/8 Long 2 3/4 Long 2 7/8 Long 3 1/8 Long 1 1/8 Short 225 1F1728 Alum. & Brown 1 7/8 Long 2 Long 2 1/8 Long 2 3/8 Long 2 3/4 Long 472 1F1773 Alum. & Bronze 3 1/8 Long 7/8 Short 1 Short 1 1/4 Short 1 5/8 Short 630 1E8269 Dark Green 1 1/4 Short 1 3/8 Short 1 1/2 Short 1 3/4 Short -----840 1E8266 Orange 1 1/2 Short 1 5/8 Short 1 3/4 Short 2 Short 2 3/8 Short 935 1E8270 Alum. & Dk. Blue 1 5/8 Short 1 3/4 Short 1 7/8 Short ----------1050 1E8272 Dark Blue 1 1/2 Short 1 5/8 Short 1 3/4 Short 2 Short 2 3/8 Short 1260 1E8265 Red 1 3/4 Short 1 7/8 Short 2 Short 2 1/4 Short -----1560 1E8271 Aluminum 2 Short 2 1/8 Short 2 1/4 Short 2 1/2 Short -----1870 1E8263 Alum. & Dk. Green 2 1/8 Short 2 1/4 Short 2 3/8 Short 2 5/8 Short -----Note: Screw lengths shown are in inches Notes: 1—Dimensions shown is height of adjusting screw. "Long" or "short" tells which adjusting screw to use. Long screw has a length of 8 1/4". Short screw has a length of 5 7/8". Long screw is Drawing Number 1N9676. Short screw if Drawing Number 1K6773.

2—Chart values are for maximum spring compression.

2" Travel 2 1/4 Long 7/8 Short 1 5/8 Short 7/8 Short 2 1/8 Short ---------------2 7/8 Short ----------------

Page 4 — Types 298T-81 & 296-81

Dwg. DL3833 PARTS NOT SHOWN 58B & 58C

Figure 3—Type 298T Regulator

Figure 4—Travel Stop, Type 298T

Type 296 See Figure 5 1. Remove the pilot and the pilot tubing and mounting bar from the 296 regulator.

2. Take off the travel indicator nut and disk (Keys 33 & 41).

3. Remove closing cap (Key 9) and back off the adjusting screw (Key 25) so that spring tension is relieved.

4. Take off the cap screws and nuts (Key 44 & 29) which hold the upper and lower diaphragm case (Keys 1 & 2) together.

5. Now take the spring (Key 6) out and unscrew the travel stem (Key 26) from the valve stem (Key 5).

6. Now, remove the stem nut (key 18) and stem locking clamp (key 16).

7. Now rotate the diaphragm and diaphragm head assembly so that it unscrews from the stem.

8. Loosen set screws (Key 38) and complete the disassembly of the diaphragm (Key 3) and head (Key

PARTS NOT SHOWN34, 35, 36

Dwg. DN9903 Figure 5—Type 296 Regulator

4) by unscrewing the adaptor locknut (Key 15) from the adaptor (Key 14). Inspect adaptor O ring (Key 20) and the diaphragm and replace if necessary.

9. To inspect the seal blushing (Key 19) and O ring (Key 37), remove the travel stop (Key 23) and retaining ring (Key 22). It may be necessary to take the distance piece (Key 31) off the valve body before the seal bushing can be removed.

10. If the spring case gaskets (Keys 11 & 12) need replacement, separate spring case and spring case cap by removing cap screws (Key 30) and (Key 39).

Type 81 See Figure 6 1. Remove all tubing connections.

2. Take out cap screws (Key 20).

3. Replace diaphragm (Key 15) by unscrewing nut (Key 19).

4. Replace diaphragm (Key 14) by unscrewing the diaphragm nut (Key 11) from the relay yoke (Key 4). Also, check O ring (Key 12).

5. If the orifice (Key 8) needs to be replaced, it can be unscrewed from the relay valve body (Key 2).

BODY MAINTENANCE—See Figures 7 and 8 There are only three items in the Design AR or KR bodies which might require maintenance, the valve plug, seat rings or gaskets. Before either of these bodies can be disassembled, the actuator must be disassembled (See appropriate section under MAINTENANCE ) and the distance piece removed.

Proceed as follows: 1. Remove the bottom flange on the AR body, and

Page 5 — Types 298T-81 & 296-81

CONTROL LINE CONNECTION

L.S.

SUPPLY INLET

LOADING PRESSURE CONNECTION PARTS NOT SHOWN 23,27,30,40,44

DWG. CR9901

Figure 6—Type 81 Pilot with 67F.

the valve plug and stem assembly will be resting on the inside of the bottom flange, and will come out when the flange is removed. On the KR body, inspection of trim parts is done by removing the side flange.

2. With the distance piece and the bottom flange off, their gaskets can be inspected. It is suggested that these gaskets be replaced, even though they might appear to be in good condition.

3. Valve plug and seat rings can be inspected and replaced if necessary. The AR body valve plug and seat rings can be ground in, if they are nicked or rough. This procedure is outlined in a later section of this publication. Procedure for replacing seat rings is given below.

REPLACING SCREWED — IN SEAT RINGS Figure 10 shows a seat ring puller that can be purchased from Fisher Controls for the Design AR or KR bodies. Usually seat rings will be frozen in the body, making the replacement job a difficult one.

Dwg. CR6828 Figure 7—Design "AR" Body.

If a lathe or boring mill is on hand, it can be used to good advantage in removing the seat rings. If not, the seat ring puller should be utilized as follows: 1. After the body and actuator have been disassembled, place proper seat lug bar across the seat ring so that the bar contacts the seat lugs as shown in Figure 10.

2. Insert the drive wrench and place enough spacer rings over the wrench so that the hold down clamp rests about 1/4 inch above the body flange.

3. Slip the hold down clamp on the drive wrench and secure the clamp to the body with two bolts from the distance piece. Do not tighten the head bolts.

4. Unscrew the seat ring using the turning bar.

Stubborn seat rings may require additional force on the turning bar. Slip a 3 foot to 5 foot cheater over one end of the turning bar and while applying a steady force, hit the other end of the bar with a heavy hammer as hard as possible to break the ring loose. In addition, a 24 inch or 36 inch pipe wrench can be used on the drive wrench near the hold down

Dwg. CR6829 Figure 8—Design "KR" Body.

Page 6 — Types 298T-81 & 296-81 clamp. Applying penetrating oil to the seat ring before attempting to remove it will facilitate the operation.

5. After seat ring is loose, alternately unscrew the flange bolts on the hold down clamp and continue to unscrew the seat ring.

Before installing the new rings, thoroughly clean the threads in the body ports. Apply pipe compound to the threads of the new seat rings and screw them into the body using the seat ring puller, lathe or boring mill. Note that one of the seat rings is smaller than the other on a Design AR body. On a valve with push down to open action, the smaller ring should be installed from the bottom of the body in the top port. Remove all excess pipe compound after tightening the rings.

Same valve bodies will have the screwed seat rings seal welded in the body. Cut away this weld before unscrewing the seat rings and re-weld the new rings after installation.

GRINDING IN SEAT RINGS For the grinding compound, use equal measures of No. 280 grain emery mixed DWG. CN1327 with solidified vegetable oil. When grinding Figure 9—Exstainless steel seat rings and valve plug, ploded "KR" apply white lead to the seat rings to prevent Valve Plug excessive cutting or tearing. The white lead should be applied separately. When grinding valves with Trim No. 6 or bronze trim, white lead is not required since galling is not a problem on these trims.

On a double port body, the top ring grinds faster than the bottom ring. Under these conditions, continue to use grinding compound and white lead on the bottom ring but only a polishing compound (rottenstone and oil) on the top ring. If either of the ports continue to leak, use more grinding compound on the seat that is not leaking and polishing compound on the other seat.

This procedure will grind down the seat that is not leaking so that both seats touch the surface at the same time. Never leave one seat dry while grinding the other.

If possible, grind the valve while in the line. The problem of leakage due to line stresses and distortion when installing the valve in the line will thereby be minimized. After grinding, thoroughly clean all internal parts of the body and test for shut-off. Repeat grinding procedure, if required.

4. Hold the upper skirt from turning at the hexagon extension or skirt locknut and loosen the stem locknut (Part 17). Unscrew the upper skirt from the valve stem and remove it through the handhole opening.

5. Disassemble both skirts and replace the O rings.

Be sure to replace the valve plug gasket (Key 10) when reassembling the upper skirt.

TO CONVERT A 298T To convert a conventional, normally closed Type 298T to a 298T normally open construction, proceed as follows: 1. A Type 81 pilot, installed as shown in Figure 1, must be used.

2. The valve body must be reverse acting so that if operating medium fails the valve plug will open.

3. The main spring might have to be changed, depending upon the operating conditions. Consult Fisher Sales Representative or Factory.

4. The upper travel stop (See Figure 4) will have to be replaced with lower travel stop. This can be done by following the disassembly procedure in the MAINTENANCE section.

To convert a direct acting valve body to reverse acting, follow this procedure: 1. Remove actuator, distance piece and bottom flange.

If this is a K body, remove the side flange. Figure 9 shows an exploded view of a KR valve plug.

2. Now take the body out of the line, invert it and put it back in the line.

3. If this is a Design A body, a new reverse acting valve plug and stem is required. Request this from the factory, specifying that reverse action is desired and furnishing the serial number of the body.

4. If this is a Design K body, unscrew the locknut on the stem, then unscrew the stem from the valve plug.

TURNING BAR

DRIVE WRENCH HOLD DOWN CLAMP

SPACER RINGS

REPLACING “O” RINGS IN “KR” BODIES ‘’Push Down to Open’’ Valve Plugs (See Figure 9)

1. Remove the side plate and bottom flange from the body. Remove the actuator and distance piece.

2. Loosen valve plug locknut (Part 8).

3. Unscrew the lower skirt (Part 5) from the upper skirt (Part 7) and remove it through the bottom flange.

SEAT LUG BAR

Figure 10—Seat Ring Puller.

DWG. AD5222

Page 7 — Types 298T-81 & 296-81 A. When converting a K to a KR body, on sizes 1 inch through 3 inch, the same valve stem can be used.

B. On sizes 4 inch through 8 inch, a longer valve stem is required. Request this from the factory, specifying reverse acting and furnishing the serial number of the valve body.

5. Reassemble the KR valve plug as shown in Figure 9.

6. The AR valve plug will come from the factory properly assembled.

7. Insert the valve plug stem first (either AR or KR ) into the bottom body opening.

A. On the AR construction, replace bottom flange and gasket, distance piece and gasket, and the actuator. Make up pilot and control line

connections and the regulator is ready to go into service.

B. On the Design KR the distance between the seats must be adjusted. With the top plug seated, turn the lower skirt in until it seats. Then tighten the locknut holding the skirt. Now replace bottom and side flanges and gaskets, and reassemble the distance piece and actuator.

When the pilot connections and control lines are made, the unit is ready to go into operation.

SERIAL NUMBER When ordering parts, or in any correspondence about this equipment, please furnish the serial number.

Parts Reference Type 298T

Key 1

2

3*

4

5 6

7 8 9 10* 12* 13* 14 15 16 17* 18 19 20*

Description Upper Diaphragm Casing, Steel Size 30 Size 40 Size 50 Size 60 Lower Diaphragm Casing, Steel Size 30 Size 40 Size 50 Size 60 Diaphragm, Buna N Size 30 Size 40 Size 50 Size 60 Diaphragm Head, Cast Iron Size 30 Size 40 Size 50 Size 60 Valve Stem - Furnished on request.

Please furnish serial number.

Spring, Steel Wire Size 30 & 40 For 80 lbs. seating load For 125 lbs. seating load For 370 lbs. seating load For 170 lbs. seating load Size 50 & 60 For 20 lbs. seating load For 40 lbs. seating load For 70 lbs. seating load For 140 lbs. seating load For 225 lbs. seating load For 315 lbs. seating load Spring Case, Cast Iron Size 30 & 40 Size 50 & 60 Spring Case Cap, Cast Iron Size 30 & 40 Size 50 & 60 Travel Indicator Cap, Aluminum Closing Cap “O” Ring, Syn. Rubber Size 30 & 40 Size 50 & 60 Spring Case Gasket, Size 50 & 60 Composition Adaptor Gasket, Comp., 2 Req’d Adaptor, Ductile Iron Size 30 & 40 Size 50 & 60 Adaptor Locknut, Steel Size 30 & 40 Size 50 & 60 Stem Locking Clamp, Steel Size 30 & 40 Size 50 & 60 Diaphragm Seal O-Ring, Syn. Rubber Size 30 & 40 Size 50 & 60 Stem Locknut, Steel Size 30 & 40 Size 50 & 60 Seal Bushing, Brass Size 30 & 40 Size 50 & 60 Stem Seal O-Ring Syn. Rubber Size 30 & 40, 2 Req’d

Size 50 & 60

Part Number

Key 21 22 23

2E7922 2E8063 3E8316 2E8474

000A2 000A2 000A2 000A2

2E8011 2E6826 3F6498 3F6999

25062 25062 25062 25062

2H7936 2H7937 2F7289 2F7311

02202 02202 02102 02102

29

2H7923 2H7939 2F7290 2F7312

19042 19042 19042 19042

30

26

31 1H8261 1F3616 1F1771 1K5098

27032 27032 27092 27032

1H2973 1F7142 1F1729 1H6751 1F1728 1E9215

27112 27112 27112 27112 27092 27092

32 33 34 35 36 37 38 39

2H7924 19012 2F7291 19012

45

2L2906 19012 2L2907 19012 1L2908 09012

46

1H7928 06992 1F7294 06992 1E8454 04022 1E8012 04022 1H7929 19072 1F7295 19072 1H7931 24092 1F7296 24092

48

1H7932 24092 1F7297 24092

51

1D5439 06992 1D2620 06992

52 53* 54

1A4132 24122 1A3754 24122 1F8415 14012 1F7298 14012 1C7822 06992

1C7821 06992

55 56 57 58

Description Zerk Fitting, Steel Retaining Ring, Steel Travel Stop, Brass Size 30 & 40 Size 50 & 60 Travel Indicator Stem, Aluminum Size 30 Size 40, for 5/8, 3/4, 7/8 and 1-1/8-inch Travel Size 40, for 1-1/2-inch Travel Size 50 & 60 Diaphragm Case Cap Screw, Steel Size 30, 12 Req’d Size 40, 16 Req’d Size 50, 20 Req’d Size 60, 24 Req’d Diaphragm Case Nut, Steel Size 30, 12 Req’d Size 40, 16 Req’d Size 50, 20 Req’d Size 60, 24 Req’d Cap Screw, Steel Size 30 & 40, 9 Req’d Size 50 & 60, 10 Req’d Distance Piece, See Table Pipe Nipple, Steel Size 30, 40, 50 & 60 Travel Indicator Nut, Steel Nameplate, Aluminum Diaphragm Case Pressure Rating Plate, Brass Nameplate Screw, Steel, 6 Req’d Seal Bushing O-Ring, Syn. Rubber Size 30 & 40 Size 60 & 80 Locking Clamp Set Screw, Steel 2 Req’d Travel Indicator Gauge Glass Size 30 & 40 Size 50 & 60 Travel Indicator, SST 7/16-inch Travel, Size 30 5/8-inch Travel, Size 30 & 40 3/4-inch Travel, Size 30 & 40 7/8-inch Travel, Size 30 & 40 1-1/8-inch Travel, Size 30 & 40 1-1/2-inch Travel, Size 40 Size 50 & 60 5/8-inch Travel 3/4-inch Travel 7/8-inch Travel 1-1/8-inch Travel 1-1/2-inch Travel 2-inch Travel Travel Indicator Disk Nut, Red Plastic Seal Bushing Washer, SST, Size 30 & 40 Retainer, Aluminum Gasket, Neoprene, 2 Req’d Travel Indicator Cover, Plexiglass, 2 Req’d Size 30 & 40 Size 50 & 60 Travel Indicator Screw, Steel, 8 Req’d O-Ring, 2 Req’d, Syn. Rubber Pipe Plug, Steel Elbow Vent Assembly

Part Number 1A7009 99012 1F8181 28992 1K4001 14012 1J5118 14012 1J6231 09022 1J6232 09022 1K7443 09022 1H7716 09022 1E7603 24052 1A6751 24052 1A3465 24122

1A3684 24052

1F7302 26012 1A3420 28992 1N9930 10022 1F1370 18992 1A3682 28992 1F8422 06992 1D2375 06992 1H5035 28992 1L2909 06992 1L2922 06992 1E8076 1E8077 1E8081 1H1479 1E8082 1E8083

28992 28992 28992 28992 28992 28992

1E8330 1E8331 1H1478 1E8332 1E8333 1E8334

28992 28992 28992 28992 28992 28992

1F7305 06992 1H2524 35022 1L2910 09012 1L2911 03012 1L2912 05032 1L2921 05032 1A3319 1E5914 1A3692 AF5502

28992 06992 24092 000A2

Page 8 — Types 298T-81 & 296-81

Type 296 Actuator Key 1 2 3* 4 5 6

7 8 9 10* 11* 12* 13* 14 15 16 17* 18 19 20* 21 22 23 24 25

26 27 28* 29 30 31 32 33 34 35 36 37* 38 39 40

41 42 43 44 45

Description Upper Diaphragm Case, Steel Size 50 Size 60 Lower Diaphragm Case Size 50 Size 60 Diaphragm, Buna N Size 50 Size 60 Diaphragm Plate, Cast Iron Size 50 Size 60 Valve Stem - Furnished on Request.

Please give serial number.

Spring, Steel Wire Color Code - Alum. & Lt. Green Alum. & Yellow Alum. & Tan Alum. & Brown Alum. & Bronze Dark Green Orange Alum. & Dark Blue Dark Blue Red Aluminum Aluminum & Dark Green Spring Case, Cast Iron Adaptor Flange, Cast Iron Travel Indicator Cap, Cast Iron Travel Indicator Cap Gasket, Comp.

Spring Case Gasket, Composition Adaptor Flange Gasket, Composition Lower Casing Gasket, Composition Adaptor, Cast Iron Adaptor Locknut, Steel Stem Locking Clamp, Steel O-Ring, Syn. Rubber Stem Locknut, Steel Seal Bushing, Brass O-Ring, Syn. Rubber Zerk Fitting, Steel Retaining Ring, Steel Travel Stop Spring Seat Size 50, Zinc Size 60, Steel Adjusting Screw, Steel (See Selection Chart) 5-7/8-inch Long 8-1/4-inch Long Travel Indicator Stem, SST Bushing, SST O-Ring, Syn. Rubber Diaphragm Casing Nut, Steel 24 Req’d Cap Screw, Steel, 14 Req’d Distance Piece, See Table Pipe Nipple, Black Steel Pipe Nut, Steel Nameplate, Aluminum Nameplate, Brass Drive Screw, Steel, 6 Req’d O-Ring, Syn. Rubber Adaptor Set Screw, Steel, 2 Req’d Spring Case Cap Screw, Steel, 8 Req’d Travel Indicator, SST 5/8-inch Travel 3/4-inch Travel 7/8-inch Travel 1-1/8-inch Travel 1-1/2-inch Travel 2-inch Travel Travel Indicator Disk Nut, Plastic Screw, Steel, 2 Req’d Pipe Plug, Steel Diaphragm Case Cap Screw, Steel Size 50, 20 Req’d Size 60, 24 Req’d Elbow Vent Assy.

Parts Reference Part Number 3E8316 000A2 2E8474 000A2 3F6498 25062 3F6999 25062

Key 1 2 3 4 5 6 7

40 41 42 43 44

Relay Spring Case, Cast Iron Relay Valve Body, Cast Iron Pilot Bottom Cover Relay Yoke, Zinc Closing Cap Assembly Adjusting Screw, Zinc Spring, Spring Wire 1/4 - 1 psi reduced pressure, red 1 -4 psi reduced pressure, yellow 3 - 9 psi reduced pressure, blue 6 - 16 psi reduced pressure, brown 12 - 26 psi reduced pressure, gray Relay Orifice, SST Relay Disk Holder Assy.

Bleed Orifice, SST Diaphragm Nut, Brass O-Ring Seal, Syn. Rubber Relay Spring, 302 SST Upper Relay Diaphragm, Buna N Lower Relay Diaphragm, Buna N Upper Relay Head, Steel Lower Relay Head, Steel Spring Seat, Steel Hex Nut, Steel Cap Screw, Steel, 8 Req’d Male Tubing Connector, Brass, 4 Req’d Washer, Steel Pipe Plug, Steel, 2 Req’d Pipe Nipple, Steel Bleed Valve, 416 SST Nameplate, Brass Closing Cap Gasket, Composition Flared Nut, Zinc, 4 Req’d Pipe Plug, Cast Iron Stabilizing Restriction, SST Pipe Tee, Malleable Iron Pipe Bushing, Malleable Iron Control Line Tubing, Copper Orifice, SST Bleed Orifice Cap, SST Pipe Tee, Malleable Iron Loading Tubing, Copper Right Hand Mounting Left Hand Mounting Mounting Bar Bias Spring, Spring Wire Pipe Nipple, Steel Type 67F Regulator Nameplate, Brass

1 2* 3* 4 4A 4B 5 6 7 8 9* 10 11

Valve Body Lower Seat Ring Upper Seat Ring Valve Plug, “AR” Body Lower Valve Plug Skirt, “KR” Body Upper Valve Plug Skirt, “KR” Body Flexaline Pins, “AR” Body, 2 Req’d Valve Plug Stem Ferrule Retainer, “AR” Body Bottom Flange Bottom Flange and Bonnet Gasket, 2 Req’d Bottom and Bonnet Cap Screws or Studs.

Bottom and Bonnet Nuts

2N9672 02112 2J7806 02112 2F7290 19042 2F7312 19042

1F7142 1F1729 1H6751 1F1728 1F1773 1E8269 1E8266 1E8270 1E8272 1E8265 1E8271 1E8263 3N9670 3N9671 2N9669 1N9674 1N9673 1E8454 1E8012 1F7295 1F7296 1F7297 1D2620 1A3754 1F7298 1C7821 1A7009 1F8181 1J5118

27112 27112 27112 27092 27082 27082 27082 27082 27082 27082 27082 27082 19012 19022 19012 04022 04022 04022 04022 19072 24092 24092 06992 24122 14012 06992 99012 28992 14012

1E8325 44022 1R1800 23122 1K6773 1N9676 1N9675 1F2620 1D1917

24102 24102 35032 35032 06992

1A3465 24122 1A3684 24052 1F7302 1A3420 1N9930 1F1370 1A3682 1D2375 1H5035 1A3449

26012 28992 10022 18992 28992 06992 28992 24052

1E8330 1E8331 1H1478 1E8332 1E8333 1E8334 1F7305 1A3461 1A3692

38992 38992 38992 38992 38992 38992 06992 28992 24092

1E7603 24052 1A6751 24052 AF5502 000A2

Type 81 Pilot

Description

8 9 10 11 12* 13 14* 15* 16 17 18 19 20 21 22 23 24 26 27 28 29 30 32 33 34 35 36 37 38 39

Design AR and KR Body

The following parts are used only on the “KR” Body: 12 18 13 16 14* 19* 15 17 20*

“O” Ring Retainer “O” Ring Retainer Retainer Nut Retainer Nut “O” Ring “O” Ring Skirt Locknut Stem Locknut Valve Plug Gasket

*Recommended Spare Part

Type 298T or 296 Distance Piece Body S ize, Inch es 1 & 1-1/4 1-1/2 & 2 2-1/2 3 4 6 8

Distance Piece Iron Steel 3H1128 1902 3H1126 2201 3F7444 1902 3F8764 2201 3F7446 1902 3K3388 2201 3F7448 1902 3K3121 2201 3F7450 1902 3K2131 2201 3F7452 1902 3F8772 2201 3F7508 1902 3F8774 2201

Part Number 1B9839 19012 2J5819 19012 2L9694 19012 1D6625 44012 AD5586 000A2 1B5379 44012 1B8863 27022 1J8578 27022 1B8864 27022 1J8579 27142 1N9872 27142 1L8845 35032 1B8868 000A2 1D7771 35032 1N9884 14012 1B8855 06992 1C9115 37022 1B8852 02052 1B8860 02052 1B9893 25072 1D5583 25072 1B8862 25072 1A3403 24122 1B9896 24052 1D6922 14012 1E2152 24152 1A6495 28992 1C6789 26012 1H9516 35132 1N9885 18992 0P0672 04022 1D6921 24272 1A3619 19012 1L8842 35072 1A4736 21992 1B2928 21992 1J4037 000A2 1L8846 35032 1D7772 35032 1C5975 21992 1L8844 17012 1L9402 000A2 1L8843 24092 1B4136 27222 1J1397 26022 1N9929 18992