Emerson 92C Manual de instrucciones descargar pdf (Pagina 12)

Type 92C

8. When maintenance is completed, refer to the

Startup section to put the regulator back in

operation and to adjust the pressure setting.

Type 6392 Pilot

Perform this procedure if inspecting, cleaning, or

replacing any pilot parts. Key numbers refer to Figure 9

unless otherwise specied.

All pilot maintenance may be performed with the pilot

body (key 1) attached to the pipe nipple and connector

(keys 23 and 24, Figure 10) unless the pilot 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

(key 13). Remove the loading tubing from the

pilot outlet connection. Remove the cap screws

(key 17), spring case (key 2), control spring

(key 13), and upper spring seat (key 14) from

the body.

2. Remove the lower spring seat (key 9), the diaphragm

(key 7), and the diaphragm gasket (key 8) from

the body. Lift out the stem assembly (key 6)

consisting of the stem and the pusher plate.

Clean the 1/16-inch / 1.6 mm diameter pilot bleed

hole. Clean and replace parts as necessary, and

assemble the stem assembly, the gasket, the

diaphragm, and the spring seat in the order shown

in Figure 9.

3. Install the control spring (key 13), the lubricated

upper spring seat (key 14), and the spring case

(key 2). Insert and tighten the cap screws (key 17).

Lubricate the adjusting screw (key 16) with

Never-Seez* or equivalent lubricant, and thread it

into the spring case.

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 orice

(key 3). Clean and replace parts as necessary.

Apply Never-Seez* or equivalent lubricant to the

orice threads, and screw the orice into place.

5. Place the valve plug spring (key 11) into the valve

plug guide (key 5). Insert the valve plug cap

(key 26) into the valve plug (key 4), and then slide

both parts over the spring and into the valve plug

guide. Place the strainer screen (key 12) onto the

valve plug guide. Apply Lok-Cease 20/20

†

sealant

or equivalent (key 21) to the valve plug guide

threads, and screw the valve plug guide with the

attached parts into the pilot body (key 1).

6. When maintenance is completed, refer to the

Startup section to put the regulator back into

operation, and adjust the pressure setting.

Types 6492HM and 6492HTM

Safety Override Pilots

These procedures are to be performed if inspecting,

cleaning, or replacing any pilot parts, or of cycling,

erratic control, or too high or too low an outlet (control)

pressure is noted. Perform only those procedures

in this section required to correct the problem. Key

numbers refer to Figure 11.

Note

Before performing any maintenance,

loosen the hex nut (key 16), if used,

and turn the adjusting screw (key 15) or

handwheel (key 31) counterclockwise

until all compression is removed from

the control spring (key 12). Remove the

pilot spring from the pipe nipple and

connectors (keys 82 and 83, Figure 12).

1. Unscrew the plug guide (key 2). Remove the

screen (key 77), inner valve (key 4), plug spring

(key 3), and stem (key 7). Unscrew the orice

(key 5). Examine the orice and plug seating

surfaces for damage.

2. Clean and replace parts as necessary. Apply

sealant to the orice threads. Thread the orice

into place and tighten using 19 to 25 foot-pounds /

26 to 34 N•m of torque.

3. Handle parts carefully, and place the plug spring

(key 3) in the plug guide (key 2). Slide the inner

valve (key 4) over the spring and into the plug

guide. Place the screen (key 77) onto the plug

guide. Place the stem (key 7) in the center hole

of the plug guide. Apply sealant to the plug guide

threads, and screw the guide plus attached parts

into the body (key 1).

4. Remove the pipe plug (key 74). Then remove the

pipe plug (key 94). Clean and replace the pipe

plugs as necessary.

5. Apply sealant to the threads of the pipe plug

(key 94) and install.

* Trademark of Never-Seez Corp.

† Trademark of Certied Laboratories

1 2 ... 7 8 9 10 11 12 13 14 15 16

Type 92C Steam Regulator 1
Type 92C 10

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