92E Instruction Manual

Type 92E

Fisher Controls

Instruction Manual

Type 92E Steam Regulator

June 1981

INTRODUCTION Scope of Manual This instruction manual provides installation, maintenance, and parts ordering information for the Type 92E steam pressure-reducing regulator. Both the pilot-operated and the pressure-loaded construction are covered.

Accessories used with the Type 92 E regulator, including the pressure-loading device, are covered in other manuals.

Description

regulator is available with a standard Type 6392 pilot (figure1) or with a pressure-loaded Type 6392 pilot. The pilot-operated version uses inlet pressure as the operating meduim; no separate air supply is required.

The pressure-loaded pilot version with a tapped pilot spring case can be used where remote adjustment of the outlet pressure setting is required; a Fisher Type 67 or 1301 F regulator or 670 Series panel-mounted regulator may be used to load the Type 6392 pilot.

Specifications Specifications for the Type 92E regulator are found in table 1. Some specifications for an individual regulator as it comes from the factory are found on the regulator body and pilot nameplates (figure 2).

D100704X012

The Type 92E steam regulator is a cast iron or steel pressure-reducing regulator for steam service. This

Form 5148

W3148

W3401

3 IN. SIZE

1 IN. SIZE

Figure 1. Type 92E-6392 Pilot-Operated Regulators

ŠFisher Controls Company 1980, 1981; All Rights Reserved

Type 92E Table 1. Specifications MAXIMUM ALLOWABLE INLET AND PILOT SUPPLY PRESSURES*

2-1/2 In. and Larger Sizes: 1/4 in.

NPT female in pilot body

Cast Iron Construction: 250 psig (17.2 bar) Steel Construction: 300 psig (20.7 bar) PORT DIAMETERS

REGULATOR PRESSURE DROP*

Minimum 1, 1-1/2, and 2 In. Sizes: 15 psi (1.0 bar) 2-1/2 In. and Larger Sizes: 20 psi (1.4 bar)

Maximum 1, 1-1/2, and 2 In. Sizes: 200 psi (13.8 bar) 2 - 1 / 2 I n . a n d L a rg e r S i z e s : 1 7 5 p s i (12.0 bar) OUTLET CONTROL PRESSURE RANGE

5 to 150 psig (0.3 to 10.3 bar) with one pilot spring range

MAXIMUM OUTLET PRESSURES*

Maximum Operating Outlet Pressure: 150 psig (10.3 bar) M a x i mu m E m e r g e n c y O u t l e t Pressure Cast Iron Construction: 250 psig (17.2

1 In. Size: 7/8 in. (22.2 mm) 1-1/2 In. Size: 1-1/8 in. (28.6 mm) 2 In. Size: 1-29/64 in. (36.9 mm) 2-1/2 In. Size: 1-5/8 in. (41.3 mm) 3 In. Size: 2-1/16 in. (52.4 mm) 4 and 6 x 4† I n. Si z e: 2- 3/ 8 i n.

(60.3 mm)

PROPORTIONAL BAND 1 0 % m a x i m u m f o r a d v e r t i s e d

capacities

STANDARD PILOT SPRING CASE VENT

3/32 in. (2.4 mm) drilled hole

PILOT LOADING PRESSURE CONNECTION

1/8 in. NPT female in optional pilot s p r i n g c a s e ( u s e d wi t h p r e s s u r e loading regulator)

APPROXIMATE WEIGHT

1 In. Screwed or Flanged: 27 lb (12 kg) 1-1/2 In. Screwed or Flanged: 39 lb (18 kg) 2 In. Screwed: 50 lb (23 kg) Flanged: 62 lb (28 kg) 2-1/2 In. Flanged: 85 lb (39 kg) 3 In. Flanged: 110 lb (50 kg) 4 In. Flanged: 160 (73 kg) 6 x 4 In. Flanged Class 300: 330 lb (150 kg) Class 600: 430 lb (195 kg)

ADDITIONAL SPECIFICATIONS

Fo r s p e c i f i c a t i o n s s u c h a s b o d y sizes, end connections styles, and c o n s t r u c t i o n ma t e r i a l s, s e e t h e parts list

bar) Steel Construction: 300 psig (20.7 bar) MAXIMUM ALLOWABLE PILOT EXTERNAL LOADING PRESSURE*

Combination of pilot control spring setting and spr ing case loading pr es s ur e c annot ex c eed 150 ps i (10.3 bar)

MAXIMUM MATERIAL TEMPERATURE CAPABILITIES*

Cast Iron Construction: +406°F (+208°C) Steel Construction: +500°F (+260°C)

PRESSURE REGISTRATION

External though downstream control line

DOWNSTREAM CONTROL LINE CONNECTION

1, 1- 1/ 2, and 2 I n. Si z es: 1/ 4 i n.

NPT female in main valve cylinder spacer

*Pressure/temperature limits in this manual and any applicable codes must not be exceeded. †This size designation indicates 6 in. end connections with 4 in. trim.

2

Type 92E July 1982

Errata Sheet for TYPE 92E STEAM REGULATOR INSTRUCTION MANUAL Form 5148, July 1981

This errata sheet describes a revised assembly procedure for 1, 1-1/2, and 2-inch body sizes due to a redesign of the piston ring and the ring expander, as well as the addition of several new parts. The new design is shown in figure 3 of this errata. All key numbers are shown in figure 3 of this errata for the 1, 11/.2, and 2-inch sizes and in figure 7 of the instruction manual for the 2-1/2 inch and larger sizes.

• Replace steps 4 through 8 of page 7 with the following: 4.

For 1, 1-1/2, and 2-inch sizes, install the baffle (key 13), the retaining ring (key 14), the seat ring (key 7), the valve plug (key 6), and the bottom stem (key 9) into the cage (key 5). Install the piston spacer (key 11) down through the baffle until it contacts the valve plug, and then install the spring (key 12).

For 1, 1-1/2, and 2-inch sizes, connect the ends of the ring expander as shown in figure 1.

Note In the following procedure, install the disc (key 39) so that it does not become pinched between the ring expander and the piston ring (keys 27 and 25, figure 2).

For 1, 1-1/2, and 2-inch sizes, install the ring expander (key 27), the piston ring (key 25), the disc (key 39), and the ring retainer (key 26) on the bottom piston. Secure these parts to the bottom stem with the stem nut (key 15, figure 2) and the cotter pin (key 16, figure 2). Do not fold the pin ends up on the top of the stem since this can interfere with loading pressure registration through the top stem passage.

For 2-1/2 inch and larger sizes, install the baffle (key 13), the O-ring (key 38), the washer (key 34), the spring seat (key 32), the seat ring (key 7), the valve plug (key 6), the stem (key 9) into the cage (key 5). Then install the piston spacer (key 11) down through the baffle until it contacts the valve plug. Install the spring (key 12), and secure it with the piston (key 24), the piston ring (key 25), the ring retainer (key 26), and the stem nut (key 15).

5.

Install the main piston cage assembly with attached parts into the body. Coat one

While this information is presented in good faith and believed to be accurate, Fisher Constrols does not guarantee satisfactory results from reliance upon such information. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding the performance, merchantability, fitness

or any other matter with respect to the products, nor as a recommendation to use any product or process in conflict with any patent. Fisher Controls reserves the right, without notice, to alter or improve the designs or specifications of the products described herein.

For information, contact Fisher Controls: Marshalltown, Iowa 50158 USA Cernay 68700 France

Sao Paulo 05424 Brazil Singapore 0512

Page 2 of the serrated edges of the main cylinder (key 17) with John Crane Plastic Lead Seal ** sealant or equivalent. Install a new cylinder gasket (key 18) onto this edge, and install the cylinder gasket-side-up on the cage.

6.

Install a new body gasket (key 19) onto the appropriate edge of the main body.

7.

For 1, 1-1/2, and 2-inch sizes, install the stem seal (key 22) onto the cylinder spacer (key 21) with the V-notch side facing downward as shown in figure 3 of this errata, and secure it with the stem seal retainer (key 23). Coat the serrated edge of the spacer with John Crane Plastic Lead Seal sealant or equivalent, and install the spacer with the edged side down over the bottom cylinder.

8.

For 1, 1-1/2 and 2-inch sizes, connect the ends of the ring expander as shown in figure 1.

Note In the following procedure, install the disc (key 39) so that it does not become pinched between the ring expander and the piston ring (keys 27 and 25, figure 2). Also note that a cotter pin, used in the previous design, is to be deleted.

For 1, 1-1/2, and 2-inch sizes, install the ring expander (key 27), the piston ring (key 25), the disc (key 39), the ring retainer (key 26), and the top stem (key 20) on the top piston. Secure these parts with the lockwasher (key 40, figure 2) and the hex nut (key 41, figure 2). Install the top piston plus attached parts stem-first through the stem seal until the top stem contacts the bottom stem.

•

Substitute the following for the corresponding entries on page 10:

Key 22

Ke y 2 5 *

Ke y 2 7

Stem Seal, TFE/glass 1 in. body 1-1/2 or 2 inc. body

16A7962 X012 16A7963 X012

Piston Ring, TFE (2 req’d) 1 in. body 1-1/2 in. body 2 in. body

18A6244 X012 18A5803 X012 18A5803 X012

Ring Expander, 302 stainless steel (2 req’d) 1 in. body 18A6286 X012 1-1/2 in. body 18A5805 X012 2 in. body 18A5806 X012

* Recommended spare part.

Page 3 ** Trademark of John Crane Co.

•

Add the following to page 10:

Key 39 *

Disc, TFE (2 req’d) 1 in. body 1-1/2 in. body 2 in. body

18A6000 X012 18A5807 X012 18A5808 X012

Lock Washer, stainless steel 1 in. body 1-1/2 and 2 in. bodies

1K6237 38992 1A5056 38992

Hex Nut 1 in. body, 316 stainless steel 1-1/2 and 2 in. bodies, Zn pl steel

1A3915 35252 1A3465 24122

Ke y 4 0

Key 41

•

A new control spring is available for the Type 6392 pilot to improve stability for low outlet pressure settings. Substitute the following for k e y 1 3 o n p a g e 11.

Key 13

Control Spring, Zn pl steel 5 to 10 psig (0.3 to 4.8 bar), green 20 to 150 psig (1.4 to 10.3 bar), red

1E3926 27012 1E3927 27142

* Recommended spare part.

CORRECTLY ASSEMBLED RING EXPANDER WITH ENDS INTERLOCKED AND CREASES POINTING RADIALLY INWARD

INCORRECTLY ASSEMBLED RING EXPANDER

Figure 1. Ring Expander Assembly for 1, 1-1/2, and 2-Inch Body Sizes

Page 4

UPPER PISTON ASSEMBLY

CORRECTLY POSITIONED DISC

INCORRECTLY POSITIONED DISC

LOWER PISTON ASSEMBLY

Figure 2. Upper and Lower Piston Assemblies for 1, 1-1/2, and 2-Inch Body Sizes

APPLY SEALANT 36A7960-C F i g u r e 3. Ty p e 9 2 E M a i n Va l v e f o r 1 , 1 - 1 / 2 , a n d 2 - I n c h B o d y S i z e s

Type 92E

16A1521-A

TYPE 92E PILOT

16A7917-A Sht 1

TYPE 92E MAIN VALVE

Figure 2. Typical Nameplates

CONTROL LINE CONNECTION

INSTALLATION

CONTROL LINE SHUTOFF VALVE

STRAINER

WARNING

Personal injury, equipment damage, or leadage due to escaping steam or bursting of pressurecontaining parts may result if this regulator is overpressured or is installed where service conditions could exceed the limits given in table 1 and on the appropriate nameplate, or where conditions exceed any ratings of the adfacent piping or piping connections. To avoid such injury or damage, provide pressure-relieving or pressure-limiting devices to prevent service conditions from exceeding those limits.

Use qualified personnel when installing, operating, and maintaining a Type 92E regulator. Make sure that there is no damage to or foreign material in the regulator and that all tubing and piping are clean and unobstructed.

Install the regulator so that flow through it matches the arrow on the main valve body. A typical installation is shown in figure 3.

The Type 92E regulator may be installed in any orientation.

However, the regulator should not be installed in a tall ver-

BLOCK VALVES

BLOCK VALVE VENT VALVE BYPASS LINE

16A7958-B A2607

Figure 3. Typical Pilot-Operated Regulator Installation

tical pipeline where condensate could collect and create a pressure head affecting regulator performance.

Apply steam-compatible pipe compound to the male pipeline threads with a screwed body, or use suitable line gaskets with a flanged body. Use acceptable piping procedures when installing the regulator.

If continuous operation of the system is required during inspection and maintenance, install a three-valve bypass around the regulator. If the flowing medium contains solids, install a properly sized strainer upstream of the regulator.

3

Type 92E

Pilot-Operated Regulator Note For proper operation, the downstream control line connection should be made as shown in figure 3 for 1, 1-1/2, and 2-inch sizes and to the pilot body as shown in figure 5 for 2-1/2 inch and larger sizes. The Type 6392 pilot spring case vent must remain clear and unobstructed. A clogged vent may cause improper regulator functioning. Install and maintain the regulator so that the vent remains clear.

1. Proceed as appropriate: a. For 1, 1-1/2, and 2-inch sizes, connect a downstream control line of at least 3/8-inch (9.5 mm) diameter pipetubing bushed down to the Âź-inch NPT control line connection in the cylinder spacer (key 21, figure 6). b. For 2-1/2 inch sizes and larger, connect a downstream control line of at least 3/8-inch (9.5 mm) diameter pipe-tubing bushed down to the Âź-inch NPT control line connection in the pilot body.

2. For both regulator body-sized and swaged pipelines, locate the pipeline control line connection at least 10 pipe diameters away from the regulator or swage and in a section of straight pipe.

3. Do not locate the control line connection in an elbow, swage, or other area of the pipeline where turbulence or abnormal velocities may occur.

4. Slope the control line away from the pilot so that condensate can drain into the pipeline.

5. Install a shotoff valve (not a needle valve) in the control line to isolate the pilot during maintenance.

6. Install a pressure guage in the control line or near the regulator to aid in setting the outlet pressure.

Each pilot-operated regulator is factory-set for the control pressure specified on the order. If no setting was specified, the unit was factory-set at 30 psig (2.1 bar). In all cases, check the spring setting to make sure it is correct for the application.

The set pressure of a Type 92E pressure-loaded pilot regulator is adjusted and determined by the pressure loading device in conjunction with the control spring setting of the Type 6392 pilot. In all cases, check these settings to make sure they are correct for the application.

STARTUP The maximum inlet pressure for a specific construction is stamped on the main valve nameplate. Use pressure gauges to monitor upstream and downstream pressures during startup.

Use the following steps to put the regulator into operation.

1. Open the control line shutoff valve.

2. Open the downstream block valve.

3. Slowly open the upstream block valve.

4. If a bypass line is used, slowly close the bypass line block valve.

5. To adjust the downstream pressure, follow the appropriate procedure: a. For a pilot-operated regulator, loosen the jam nut (key 15, figure 8). Turn the adjusting screw (key 16, figure 8) into the spring case to increase the downstream pressure.Turn the adjusting screw out of the spring case to decrease the downstream pressure. When the required downstream pressure is maintained for several minutes, tighten the jam nut to lock the adjusting screw in position. b. For a pressure-loaded pilot regulator, refer to the instruction manual of the pressure-loading device for downstream pressure adjustment procedures. Make sure that the combined pilot control spring setting pressure and spring case loading pressure do not exceed 150 psig (10.3 bar). For example, a 5 psig (.034 bar) spring setting and 10 psig (.69 bar) pressure loading will result in a regulated pressure of 15 psig (1.0 bar).

Pressure-Loaded Pilot Regulator Install a pressure-loaded pilot regulator according to steps 1 through 6 of the preceding Pilot-Operated Regulator section, and then connect the pressure-loading piping of tubing to the optional 1/8-inch NPT connection in the tapped pilot spring case.

4

SHUTDOWN Use the following steps to take the regulator out of operation

Type 92E

1. If a bypass line is used, slowly open the bypass line block valve while monitoring the downstream pressure.

2. Close the upstream block valve.

PILOT CONTROL SPRING PILOT BLEED HOLE

PILOT DIAPHRAGM

PILOT VALVE PLUG PILOT VALVE PLUG SPRING

3. Close the downstream block valve.

4. Close the control line shutoof valve.

MAIN VALVE PISTONS

5. Vent the regulator and control line to release any trapped pressure.

MAIN VALVE STEMS

PRINCIPLE OF OPERATION

MAIN VALVE SPRING MAIN VALVE PLUG

Pilot-Operated Regulator INLET PRESSURE

1, 1-1/2, and 2-Inch Sizes Pilot supply pressure is piped from the inlet side of the main valve (figure 4) to the pilot inlet connection. Downstream pressure registers under the main valve pistons through the downstream control line and then under the pilot diaphragm.

When increased downstream demand lowers the downstream pressure to a value below the setting of the pilot control spring, this spring forces the pilot valve plug open to increase the loading pressure to the top of the main valve pistons. At the same time, the increased demand lowers the downstream pressure under the main valve pistons. The increased loading pressure on top of the main valve pistons and decreased downstream pressure under the main valve pistons force the main valve piston and stem assembly downward. This opens the main valve plug, increasing flow to the downstream system to satisfy the increased demand and to restore downstream pressure to the setting of the pilot control spring.

Decreased downstream demand increases the downstream pressure registered under the pilot diaphragm.

The increased pressure overcomes the force of the pilot control spring and allows the pilot valve plug spring to close the pilot valve plug. As the pilot valve plug closes, excess loading pressure bleeds to the downstream system through the pilot bleed hole. At the same time, decreased downstream demand increases the downstream pressure registered under the main valve pistons. The decreased loading pressure on top of the main valve pistons and increased downstream pressure under the main valve pistons force the main valve piston and stem assemblies

LOADING PRESSURE 36A7840-A A2610

DOWNSTREAM PRESSURE

Figure 4. Operational Schematic of Type 92E-6392 Pilot-Operated Regulator for 1, 1-1/2, and 2-Inch Valve Sizes

upward. This allows the main valve spring to close the main valve plug, reducing flow to the downstream system in response to the decreased demand.

2-1/2 Inch and Larger Sizes Pilot supply pressure is piped from the inlet side of the main valve (figure 5) to the pilot inlet connection.

Downstream pressure registers above the main valve piston and then under the pilot diaphragm.

When increased downstream demand lowers the downstream pressure to a value below the setting of the pilot control spring, this spring forces the pilot valve plug open to increase the loading pressure to the bottom of the main valve piston. At the same time, the increased demand lowers the downstream pressure above the main valve piston. The increased loading pressure below the main valve piston and the decreased downstream pressure above the main valve piston force the main valve piston and stem assembly upward. This opens the main valve plug, increasing flow to the downstream system to satisfy the increased damand and to restore downstream pressure to the setting of the pilot control spring.

5

Type 92E PILOT CONTROL SPRING

PILOT BLEED HOLE

MAINTENANCE

PILOT DIAPHRAGM PILOT VALVE PLUG SPRING

PILOT VALVE PLUG

MAIN VALVE PLUG

Regulator parts are subject to normal wear and must be inspected periodically and replaced as necessary. The frequency of inspection and replacement depends upon the severity of service conditions and upon applicable Federal, state, and local codes and regulations.

WARNING

MAIN VALVE PISTON

MAIN VALVE SPRING MAIN VALVE STEM INLET PRESSURE

Avoid personal injury or damage to property from sudden release of pressure of uncontrolled steam or other process fluid. Before starting to disassemble:

• • •

Isolate the regulator from the process, Release process pressure, and Vent the pilot supply and main valve loading pressures

LOADING PRESSURE 37A7759-A A2742

DOWNSTREAM PRESSURE

Figure 5. Operational Schematic of Type 92E-6392 Pilot-Operated Regulator for 2-1/2 and Larger Sizes

Decreased downstream demand increases the downstream pressure registered under the pilot diaphragm.

The increased pressure overcomes the force of the pilot control spring and allows the pilot valve plug spring to close the pilot valve plug. As the pilot valve plug closes, excess loading pressure bleeds to the downstream system through the pilot bleed hole. At the same time, decreased downstream demand increases the downstream pressure registered above the main valve piston. The decreased loading pressure below the main valve piston and increased downstream pressure above the main valve piston forces the main valve piston and stem assembly downward. This allows the main valve spring to close the main valve plug, reducing flow to the downstream system in response to the decreased demand.

Type 92E Main Valve Perform these procedures if replacing the piston(s), the cylinder(s), the stem(s), the seals, the valve plug, or the seat ring. All key numbers are referenced in figure 6 for the 1, 1-1/2, and 2-inch sizes and in figure 7 for the 2-1/ 2 inch and larger sizes. Instructions are given for complete disassembly and assembly. Disassemble the regulator only as far as necessary to complete the required maintenance. Then, begin the assembly procedure at the appropriate step.

Note The regulator may remain in the pipeline during maintenance procedures unless the main valve body is to be replaced or removed for repairs.

The pilot may remain on the pipe nipple (key 23, figures 9 and 10) unless the pilot body (key 1, figure 8) will have to be removed or the entire pilot replaced as a unit.

Whenever a gasket seal is distrubed by removing or shifting gasketed parts, a new gasket should be installed upon reassembly. This is necessary to ensure a good gasket seal.

Pressure-Loaded Pilot Regulator

Disassembly

With a pressure-loaded pilot regulator, the operation is the same as for a standard pilot-operated regulator except that the pilot control spring force on the pilot valve plug is aided by pneumatic pressure from the loading device.

1. Disconnect the tubing from the elbow (key 25, figure 9; key 25, figure 10) in the body flange (key 2) and the connectors (key 24, figures 9 and 10) from the pilot end connections.

6

Type 92E 2. Remove the cap screws (not shown) from a cast iron body, or stud nuts (key 4) from a steel body, and lift off the body flange.

3. For the 1, 1-1/2, and 2-inch sizes (figure 6), remove the top cylinder (key 17), and pull out the top piston with attached stem and others parts. Remove the cotter pin (key 16), top stem nut (key 15), top stem (key 20), top piston ring retainer (key 26), top piston ring (key 25), and top piston ring expander (key 27) from the top piston.

4. For the 1, 1-1/2, and 2-inch sizes (figure 6), lift off the cylinder spacer (key 21), and remove the stem seal retainer (key 23) and stem seal (key 22) from the spacer.

5. Remove the cylinder (key 17), piston (key 24), with attched parts, and the spiral wound gasket (key 8).

6. Remove the stem nut (key 15), the bottom stem (key 9) with hex head, valve plug (key 6), piston ring retainer (key 26), piston ring (key 25), bottom piston ring retainer (key 27, figure 6 only), piston (key 24), spring (key 12), piston spacer (key 11), and seat ring (key 7).

7. If a Whisper Trim速 noise attenuator is used, remove the plug spacer (key 33, 2-inch size only), the deflector (key 36, 2-inch size only), and the screen (key 37).

8. Either remove the retaining ring (key 14, figure 6), or remove the spring seat, washer, and O-ring (keys 32, 34, and 38; figure 7) if it is necessary to remove the baffle (key 13).

Assembly 1. Inspect and replace parts as necessary, making sure that the hollow passage in the top stem (figure 6 only) is free from debris.

seat (keys 38, 34, 32, figure 7), and then install the seat ring (key 7), the valve plug (key 6), and the stem (key 9) into the cage (key 5). Then, install the piston spacer (key 11) down through the baffle until it contacts the valve plug.

Install the spring (key 12), and secure with the piston (key 24), ring expander (key 27) if used, the piston ring (key 25), the piston ring retainer (key 26), and the stem nut (key 15).

For the 1, 1-1/2, and 2-inch sizes, lock the stem nut in place with a cotter pin (key 16), but do not fold the pin ends up on top of the stem since this can interfere with loading pressure registration through the top stem passage.

5. Install the main piston cage assembly with attached parts into the body. Coat one of the serrated edges of the main cylinder (key 17) with John Crane Plastic Lead Seal* sealant or equivalent, install a new cylinder gasket (key 18) onto this edge, and install the cylinder gasketside-up on the cage.

6. Install a new body gasket (key 19) onto the appropriate edge of the main body.

7. For the 1, 1-1/2, and 2-inch sizes, install the stem seal (key 22) onto the cylinder spacer (key 21) in the orientation shown in figure 6, and secure with the stem seal retainer (key 23). Coat the serrated edge of the spacer with John Crane Plastic Lead Seal sealant or equivalent, and install the spacer edge-side-down over the bottom cylinder.

8. For the 1, 1-1/2, and 2-inch sizes, install the top piston ring expander (key 27), piston ring (key 25), ring retainer (key 26), and stem (key 20) on the top piston, and then secure with the top stem nut and cotter pin (key 16). Install the top piston plus attached parts stem-first through the stem seal until the top stem contacts the bottom stem.

2. Install a spiral wound gasket (key 8) into the body (key 1).

3. If installing a new valve plug and/or a new seat ring, lap the seating surfaces together outside the body. Use a commercial lapping compound or a mixture of solidified vegatable oil and 600-grit or finer silicon carbide or aluminum oxide.

9. For the 1, 1-1/2, and 2-inch sizes, coat both serrated edges of the top cylinder (key 17) with John Crane Plastic Seal sealant or equivalent, install new cylinder gaskets (key 18) on these edges, and install the cylinder down over the top piston into the cylinder spacer.

Note

10. Install the body flange (key 2) on the body, and secure with the cap screws (key 3, not shown) for a cast iron body or with the stud nuts (key 4) for a steel body.

If a Whisper Trim noise attenuator is used, install the screen (key 37), the deflector (key 36, 2-inch size only), and the plug spacer (key 33, 2-inch size only) where appropriate in the following step.

11. Reconnect the tubing to the elboy (key 25, figure 9; key 25, figure 10) in the body flange and to the connectors (key 24, figures 9 and 10) in the pilot end connections.

4. Install the baffle (key 13) and either the retaining ring (key 14, figure 6) or the O-ring, washer, and spring

12. When all maintenance is complete, refer to the Startup section in order to put the regulator back into operation and adjust the pressure setting.

*Trademark of John Crane Co.

7

Type 92E Type 6392 Pilot This procedure is to be performed if inspecting, cleaning, or replacing any pilot parts. Key numbers refer to figure 8 unless otherwise indicated.

Note All pilot maintenance may be performed with the pilot body (key 1) attached to the pipe nipple and connectors (keys 23 and 24, figures 9 and 10) unless the body must be removed or the pilot is to be replaced as a unit.

1. Loosen the jam nut (key 15), and turn the adjusting screw (key 16) counterclockwise until all compression is removed from the control spring. Remove the loading tubing from the pilot outlet connection. Remove the cap screws (key 17), spring case (key 2), spring (key 13), and upper spring seat (key 14) from the body.

2. Remove the lower spring seat (key 9), diaphragm (key 7), and diaphragm gasket (key 8) from the body.

Clean off the diaphragm gsket. Lift out the stem assembly (key 6) consisting of the stem and pusher plate. Clean the 1/16-inch (1.6 mm) diameter pilot bleed hole. Replace worn parts as necessary, and assemble the stem assembly, gasket, diaphragm, and spring seat in the order shown in figure 8.

3. Install the control spring (key 13), the lubricated upper seat (key 14), and the spring case (key 2), and insert and tighten the cap screws (key 17). Lubricate the adjusting screw (key 16) with Never-Seez† lubricant or equivalent, and thread it into the spring case.

Key

PARTS LIST

1 2

Type 92E Main Valve Note Key numbers refer to figure 6 for the 1, 1-1/2, and 2-inch sizes and figure 7 for the 2-1/2 inch and larger sizes. With the exception of those part munbers listed for key 1, the valve body, all other part numbers for the 6 x 4-inch are the same as those for the 4-inch size.

3

Description

4. Unscrew the valve plug guide (key 5). Remove the strainer screen (key 12), the valve plug (key 4), the valve plug cap (key 26), and the valve plug spring (key 11).

Unscrew the seat ring (key 3). Clean and replace parts as necessary. Apply Never-Seez lubricant or equivalent to the seat ring threads, and thread it into place.

5. Handle the parts carefully, and place the valve plug spring (key 11) in the valve plug guide (key 5). Insert the valve plug cap (key 26) into the valve plug (key 4) and slide both parts over the spring and into the guide. Place the strainer screen (key 12) onto the valve plug guide.

Apply John Crane Plastic Lead Seal sealant or equivalent to the valve plug guide threads, and screw the guide with the attached parts into the body (key 1).

6. When all maintenance is complete, refer to the Startup section in order to put the regulator back in operation and adjust the pressure setting.

PARTS ORDERING When corresponding with your Fisher sales office or sales representative about this equipment, always reference the equipment serial number as found on the regulator nameplates.

When ordering replacement parts, reference the complete 11-character part number of each needed part as found in the following parts list.

Part Number

Body See following table Body Flange Cast Iron 1 in. body 26A7837 X012 1-1/2 in. body 26A7900 X012 2 in. body 26A7869 X012 2-1/2 in. body 27A1548 X012 3 in. body 27A1576 X012 4 in. body 27A1600 X012 WCB steel 1 in. body 26A7838 X012 1-1/2 in. body 26A7901 X012 2 in. body 26A7870 X012 2-1/2 in. body 27A1549 X012 3 in. body 27A1577 X012 4 in. body 27A1601 X012 Cap Screw (not shown), pl steel (fro cast iron boey) 1 in. body (4 req’d) 16A7839 X012 1-1/2 or 2 in. body (8 req’d) 1U6256 31192

Key 3

3

4

†Trademark of Never-Seez Corp.

8

Description

Part Number

Cap Screw (Continued) 2-1/2 in. body (8 req’d) 1R2811 24052 3 in. body (8 req’d) 1A4512 24052 4 in. body (8 req’d) 1A4402 24052 Stud Bolt, B7 steel (for steel body) 1 in. body (4 req’d) 1V5426 X0012 1-1/2 or 2 in. body (8 req’d) 16A7902 X012 2-1/2 in. body (8 req’d) 1R2848 31012 3 in. body (8 req’d) 1R3506 31012 4 in. body (8 req’d) 1R3690 31012 Stud Nut, steel (for sttel 1 in. body (4 req’d) 1-1/2 or 2 in. body (8 req’d) 2-1/2 in. body (8 req’d) 3 in. body (8 req’d) 4 in. body (8 req’d)

body) 1C3306 24072 1A3772 24072 1C3306 24072 1A3760 24072 1A3520 24072

Type 92E

Key 5

6

7

8*

9

11

12

13

14

15

Description

Part Number

Cage, cast iron 1 in. body 26A7841 1-1/2 in. body 26A7903 2 in. body 26A7872 2-1/2 in. body 27A1550 3 in. body 27A1578 4 in. body 27A1602 Valve Plug, 17-4PH stainless steel 1 in. body 16A7842 1-1/2 in. body 16A7904 2 in. body 16A7873 2-1/2 in. body 27A1552 3 in. body 27A1580 4 in. body 27A1604 Seat Ring, 416 stainless steel 1 in. body 16A7844 1-1/2 in. body 16A7906 2 in. body 16A7875 2-1/2 in. body 27A1553 3 in. body 27A1581 4 in. body 27A1605 Spiral Wound Gasket 316 stainless steel & graphite 1 in. body 16A7845 1-1/2 in. body 16A7907 2 in. body 16A7876 2-1/2 in. body 17A1554 3 in. body 17A1582 4 in. body 17A1606 Bottom Stem, pl steel 1 in. body 16A7846 1-1/2 in. body 16A7908 2 in. body 16A7877 2-1/2 in. body 17A1556 3 in. body 17A1584 4 in. body 17A1608 Piston Spacer, 304 stainless steel 1 in. body 16A7848 1-1/2 in. body 16A7910 2 in. body (standard trim only) 16A7879 2-1/2 in. body 17A1558 3 in. body 17A1585 4 in. body 17A1610 Spring, spring wire 1 in. body 16A7849 1-1/2 in. body 16A7911 2 in. body 16A7880 2-1/2 in. body 17A1559 3 in. body 17A1586 4 in. body 17A1611 Baffle, stainless steel 1 in. body 1-1/2 in. body 2 in. body 2-1/2 in. body 3 in. body 4 in. body Retaining Ring, steel 1 in. body 1-1/2 in. body 2 in. body Stem Nut, steel (2 req’d) 1 in. body 1-1/2 or 2 in. body 2-1/2 or 3 in. body 4 in. body

X012 X012 X012 X012 X012 X012 X012 X012 X012 X012 X012 X012 X012 X012 X012 X012 X012 X012

X012 X012 X012 X012 X012 X012

36A7980-A

X012 X012 X012 X012 X012 X012 X012 X012 X012 X012 X012 X012 37A6565-A

X012 X012 X012 X012 X012 X012

DETAIL SHOWING WHISPER TRIM NOISE ATTENTUATOR [PISTON SPACER (KEY 11); PLUG SPACER (KEY 33); DEFLECTOR (KEY 36); AND SCREEN (KEY 37)]

Figure 6. Type 92E Main Valve for 1, 1-1/2, and 2-Inch Valve Sizes Key

16A7850 16A7912 16A7881 17A1560 17A1587 17A1612

X012 X012 X012 X012 X012 X012

16

17 16A7851 X012 16A7913 X012 16A7882 X012 16A7852 X012 16A7914 X012 1A4132 24122 1A4201 24122

Description

Part Number

Cotter Pin, stainless steel (2 req’d) 1 in. body 16A7930 X012 1-1/2 and 2 in. body 17A5574 X012 Cylinder, 416 stainless steel 1 in. body (2 req’d) 16A7853 1-1/2 in. body (2 req’d) 16A7915 2 in. body (2 req’d) 16A7884 2-1/2 in. body (1 req’d) 17A1561 3 in. body (1 req’d) 17A1588 4 in. body (1 req’d) 17A1613

Key 18*

X012 X012 X012 X012 X012 X012

19

Description Body Gasket, copper 1 in. body (3 req’d) 1-1/2 in. body (3 req’d) 2 in. body (3 req’d) 2-1/2 in. body (1 req’d) 3 in. body (1 req’d) 4 in. body (1 req’d) Body Gasket, copper 1 in. body 1-1/2 in. body 2 in. body 2-1/2 in. body

Part Number

16A7854 X012 16A7916 X012 16A7885 X012 14A5685 X022 17A1589 X012 17A1614 X012 14A6785 14A3384 14A5685 17A1563

X022 X022 X022 X012

*Recommended spare part.

9

Type 92E Key

Description

26

Ring Retainer, 302 stainless steel 1 in. body (2 req’d) 16A7860 X012 1-1/2 in. body (2 req’d) 16A7922 X012 2 in. body (2 req’d) 16A7891 X012 2-1/2 in. body (1 req’d) 17A1566 X012 3 in. body (1 req’d) 17A1592 X012 4 in. body (1 req’d) 17A1617 X012 Ring Expander, 302 stainless steel (2 req’d) 1 in. body 16A7861 X012 1-1/2 in. body 16A7923 X012 2 in. body 16A7892 X012 Nameplate, stainless steel 16A7917 X012 Flow Arrow, stainless steel 1 in. body 1V1059 38982 1-1/2, 2, 2-1/2, 3, & 4 in. body 1V1060 38982

27

28 29

30

37A1622-C

Drive Screw, stainless steel (4 req’d) 1A3682 28982 John Crane Plastic Lead Seal Sealant, 1 lb. (0.45 kg) can (not furnished with regulator) 1M3307 06992 Spring Seat, carbon steel 2-1/2 in. body 17A1567 X012 3 in. body 17A1593 X012 4 in. body 17A1618 X012 Plug Spacer, steel 2-1/2 in. body 17A1568 X012 3 in. body 17A1594 X012 4 in. body 17A1619 X012

31

Figure 7. Type 92E Main Valve for 2-1/2 Inch and Larger Sizes

32 Key 19*

20

21

22

23

Description

Part Number

Body Gasket (Continued) 3 in. body 13A0354 4 in. body 14A5640 Top Stem, stainless steel 1 in. body 16A7855 1-1/2 or 2 in. body 16A7886

Key 24

X022 X022 X012 X012

Cylinder Spacer, steel 1 in. body 26A7856 X012 1-1/2 in. body 26A7918 X012 2 in. body 26A7887 X012 Stem Seal, TFE/glass 1 in. body 16A7692 X012 1-1/2 or 2 in. body 16A7693 X012 Stem Seal Retainer, stainless steel 1 in. body 16A7857 X012 1-1/2 or 2 in. body 16A7888 X012

Description

Part Number

Piston, 416 stainless steel 1 in. body (2 req’d) 16A7858 1-1/2 in. body (2 req’d) 16A7920 2 in. body (2 req’d) 16A7889 2-1/2 in. body (1 req’d) 17A1564 3 in. body (1 req’d) 17A1590 4 in. body (1 req’d) 17A1615

X012

33

X012 X012 X012 X012 X012

34

Washer, carbon steel 2-1/2 & 3 in. body 17A1569 4 in. body 17A1620 Groove Pin, stainles steel 2-1/2 & larger sizes 16A7883 O-Ring, TFE 2-1/2 & 3 in. body 17A7396 4 in. body 17A7397

35 25*

Piston Ring, TFE 1 in. body (2 req’d) 16A7859 1-1/2 in. body (2 req’d) 16A7922 2 in. body (2 req’d) 16A7890 2-1/2 in. body (1 req’d) 17A1565 3 in. body (1 req’d) 17A1591 4 in. body (1 req’d) 17A1616

X012 X012 X012 X012 X012 X012

Part Number

38

X012 X012

X012 X012 X012

Key 1 Body END BODY CONNECTION MATERIAL STYLE NPT Cast iron CL125 FF CL250 RF NPT CL150 RF WCB steel CL300 RF CL600 RF

BODY SIZE, IN. 1

1-1/2

2

2-1/2

3

4

4x6

26A7830 X012 26A7894 X012 26A7832 X012 26A7833 X012 26A7834 X012 26A7835 X012 26A7836 X012

26A7893 X012 26A7894 X012 26A7895 X012 26A7896 X012 26A7897 X012 26A7898 X012 26A7899 X012

26A7862 X012 26A7863 X012 26A7864 X012 26A7865 X012 26A7866 X012 26A7867 X012 26A7868 X012

. . .

37A1543 X012 37A1544 X012 . . .

37A1545 X012 37A1546 X012 37A1547 X012

. . .

37A1571 X012 37A1572 X012 . . .

37A1573 X012 37A1574 X012 37A1575 X012

. . .

37A1595 X012 37A1596 X012 . . .

37A1597 X012 37A1598 X012 37A1599 X012

. . .

37A1595 X012 37A1596 X012 . . .

37A1597 X012 37A1598 X012 37A1599 X012

*Recommended spare part.

10

Type 92E

Key

Description

Part Number

Parts Required for Optional Whisper Trim Noise Attenuator Note To convert to a Whisper Trim noise attenuator assembly each of the following parts as listed must be installed additionally to the standard trim assembly of the Type 92E steam regulator. Also, for the 2-inch size, the piston spacer (key 11) included with the standard trim assembly must be replaced with the separate piston spacer listed below.

11 33 36 37

Piston Spacer, steel 2 in. size only Plug Spacer, steel 2 in. size only Deflector, stainless steel 2 in. size only Screen, stainless steel 2 in. body 2-1/2 in. body 3 in. body 4 in. body

17A6562 X012 17A6563 X012 17A6561 X012 17A5751 17A7760 17A7761 17A7762

X012 X012 X012 X012

Type 6362 Pilot (figure 8) 1

2

3 4

Body Cast iron 26A1518 X012 Steel 26A1517 X012 Spring Case Standard Cast iron 2E3912 19012 Steel 2J1275 22012 1/8 in. NPT tapped Cast iron 2L4429 19012 Steel 2L4430 22012 Seat Ring, 416 stainless steel 16A1511 X012 Valve Plug, 416 stainless steel 16A1516 X012

16A1520-B

Figure 8. Type 6392 Pilot

Key 9 10 11 12

5

6 7 8*

Valve Plug Guide Brass (cast iron pilot) 1E3918 14012 416 stainless steel (steel pilot) 1E3918 35132 Stem Ass’y, 416 stainless steel 16A1515 X012 Diaphragm, 302 stainless steel (2 req’d) 1E3928 36012 Diaphragm Gasket, asbestos 1E3931 04022

13 14 15 16

Description Lower Spring Seat, aluminum Stem Guide Bushing, 416 stainless steel Valve Plug Spring, 302 stainless steel Strainer Screen, 304 stainless steel

Part Number

Key 17

1E3923 09012 18 1E3922 35132 19 1E3924 37022 20 16A1512 X012

Control Spring, steel 1E3927 27124 Upper Spring Seat, Zn pl Steel 1B7985 25062 Jam Nut, steel pl 1A3522 24122 Adjusting Screw, Zn pl Steel 1E6399 28992

21

26

Description

Part Number

Cap Screw, steel pl (6 req’d) 1A4078 24052 Nameplate, aluminum 16A1521 X012 Drive Screw, stainless steel (2 req’d) 1A3682 28982 Never-Seez Lubricant, 1 gal. (3.8 L) can (not furnished) 1M5239 06992 John Crane Plastic Lead Seal Sealant, 1 lb (0.45 kg) can (not furnished) 1M3307 06992 Valve Plug cap, 416 stainless steel 16A1549 X012

*Recommended spare part.

11

Type 92E Key

Description

Part Number

Mounting Parts for 1, 1-1/2, and 2 In. Sizes (figure 9) 22

23 24 25

27

1C3729 99012 1C3730 99012

26A7926 X012 26A7927 X012 26A7928 X012

Figure 10. Type 92E-6392 Pilot Mounting Parts for 2-1/2 Inch and Larger Sizes

22

24 25

Loading Tubing, copper 2-1/2 in. body 3 in. body 4 in. body Pipe Nipple, steel 2-1/2 & 3 in. body 4 in. body Connector, brass Elbow, brass

28

Elbow, carbon steel

23

17A1625 X012 17A1626 X012 17A1627 X012 1N5842 1N6240 1C3729 1C3730

26022 26232 99012 99012

13A1714 X012

Printed in U.S.A.

Figure 9. Type 92E-6392 Pilot Mounting Parts for 1, 1-1/2, and 2-Inch Sizes

Inlet Tubing, copper 1 in. body 1-1/2 in. body 2 in. body

26A7924 X012 26A7925 X012 1N5842 26022

Mounting Parts for 2-1/2 In. and Larger Sizes (figure 10)

37A1624-A

26A7919-B A2611

Loading Tubing, copper 1 in. body 1-1/2 & 2 in. body Pipe Nipple, steel Connector, brass (2 req’d) Elbow, brass (2 req’d)

While this information is presented in good gaith and believed to be accurate, Fisher Constrols does not guarantee satisfactory results from reliance upon such information. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding the performance, merchantability, fitness

Fisher Controls

or any other matter with respect to the products, nor as a recommendation to use any product or process in conflict with any patent. Fisher Controls reserves the right, without notice, to alter or improve the designs or specifications of the products described herein.

For information write: P.O. Box 190, Marshalltown, Iowa 50158, U.S.A. or Brenchley House, Maindstone, Kent ME 14 1UQ, England