161Eb Series Pilots; Travel Indicator Parts; Torque Values - Fisher EZR Instruction Manual

INDICATOR COVER
(KEY 21)
W7400_1
BODY SIZE, NPS (DN)
1 or 1-1/4 x 1 (25 or 32 x 25)
2 x 1 or 2 (50 x 25 or 50)
3 (80)
4, 6 x 4, or 8 x 4
(100, 150 x 100, or 200 x 100)
6, 8 x 6, or 12 x 6
(150, 200 x 150, or 300 x 150)
8 (200)
• Washer (key 79 for NPS 6 (DN 150) size only)
• Main Spring (key 12), small end first
• Upper Spring Seat (key 17), make sure to place
the large end toward the spring
• First Back-up Ring (key 16)
• O-ring (key 18)
• Second Back-up Ring (key 16)
• Indicator Fitting (key 19), the back-up rings (key 16)
and O-ring (key 18) should slide into the indicator
fitting and the small end of the upper spring seat
(key 17) should slide into the indicator fitting.
• First Hex Nut (key 4)
• Indicator Washer (key 20)
• Second Hex Nut (key 4)
11. Install the indicator fitting (key 19) into the bonnet
(key 2, Figure 14), tighten to the proper torque
(see Table 13).
To set the travel indicator, hold the indicator
cover (key 21) next to the indicator fitting
(key 19). Screw the hex nuts (key 4) and the
indicator washer (key 20) down on the indicator
stem (key 15) until the washer is even with
the lowest marking on the indicator cover.
Lightly lubricate the indicator cover threads and
i nstall. Replace the indicator protector (key 22).
To replace the travel indicator with the non-
travel indicator option, place the main spring
(key 12) into the bonnet. Install the indicator plug
(key 19) and tighten to proper torque (see Table 13).
INDICATOR FITTING
(KEY 19)
HEx nUTS
(KEY 4)
INDICATOR
O-RING (KEY 6)
INDICATOR
wAShER (KEY 20)
Figure 10. Travel Indicator Parts
Table 13. Torque Values
Cap Screws
75 to 95 (102 to 129)
55 to 70 (75 to 95)
100 to 130 (136 to 176) 19 to 25 (26 to 34)
160 to 210 (217 to 285) 19 to 25 (26 to 34)
275 to 300 (373 to 407) 50 to 100 (68 to 136)
400 to 450 (542 to 610) 90 to 110 (122 to 149)
UPPER SPRInG
SEAT (KEY 17)
O-RING
(KEY 18)
BACK-UP
RInGS
(KEY 16)
TORQUE, FOOT-POUNDS (N•m)
Flange Locknut Indicator Fitting
4 to 6 (5,4 to 8,1) 90 to 160 (122 to 217)
6 to 8 (8,1 to 11) 90 to 160 (122 to 217)
200 to 300 (271 to 407)
200 to 300 (271 to 407)
300 to 425 (407 to 577)
300 to 425 (407 to 577)
161EB Series Pilots (Figure 19)
This procedure covers all 161EB Series
pilots. Types 161EB and 161EBM rated
for outlet pressure settings over
200 psig (13,8 bar) require a diaphragm
limiter. Types 161EB and 161EBM pilots
rated for outlet pressure settings under
200 psig (13,8 bar) do not require a
diaphragm limiter.
Trim Parts
1. As shown in Figure 11, remove the body plug
(key 3) to let the plug spring (key 6), and valve
plug (key 4) drop freely from the body.
2. Inspect the removed parts and body plug O-ring
(key 15), replace as necessary, and make sure the
plug seating surfaces are free from debris.
3. Sparingly apply lubricant to the body plug O-ring
(key 15) and the threads of the body plug (key 3).
Install the body plug O-ring over the body plug.
4. Stack the plug spring (key 6), and valve plug
(key 4) on the body plug (key 3). Install the body
plug with stacked parts into the body (key 1).
Type EZR
MAIN SPRING
(KEY 12)
INDICATOR STEM
(KEY 15)
wAShER (KEY 79)
(NPS 6 (DN 150) SIZE ONLY)
Indicator Plug
90 to 160 (122 to 217)
90 to 160 (122 to 217)
200 to 300 (271 to 407)
200 to 300 (271 to 407)
300 to 425 (407 to 577)
300 to 425 (407 to 577)
Note
19