Emerson EZH and EZHSO Series Pressure Reducing Regulators Manual de instrucciones descargar pdf (Pagina 19)

EZH and EZHSO Series

the upper actuator casing (key 11) off the lower

actuator casing (key 5). Inspect the upper actuator

casing (key 11), O-rings (key 158) and anti-friction

rings (key 157) for damage or wear. If damaged,

remove and replace with new parts. Place the

anti-friction rings in the cap rst, then slide the

O-ring between the anti-friction rings.

3. Unscrew 8 special screws (key 68). Lift up and

remove the sleeve assembly (key 14). Lift off the

diaphragm/plates system. Remove O-ring (key 15)

and replace as needed. Inspect diaphragm

(key 20) for damage or wear, remove screws

(key 16), lift off inlet plate (key 18) to replace

diaphragm and O-ring (key 17).

4. Unscrew 8 screws (key 77) to remove cap (key 70)

from the upper casing (key 5). Align screw holes

on the cap (key 70) to the sleeve guide screws

(key 66). Remove sleeve guide (key 61) utilizing

cap (key 70) to unscrew. Inspect O-rings (key 9),

(key 64) and (key 153) for damage or wear,

replace anti-friction rings (key 8) and O-ring

(key 9) if necessary. Unscrew 8 cap screws (key 6)

and remove crush washers (key 67). Lift off lower

casing (key 5). Inspect O-rings (keys 7 and 63) or

damage or wear, replace them if necessary.

5. Remove cage (key 78).

6. Remove seat ring (key 2). Inspect seat ring

for damage or wear. If damaged, replace with

new parts.

7. Remove O-ring (key 34) from body (key 1).

Inspect for damage or wear. If damaged, replace

with new parts.

8. Lubricate O-ring (key 34) and replace into the

body (key 1).

9. Place seat ring (key 2) on top of O-ring in body

(key 1) with curved side down and seat edge up.

10. Place cage (key 78) on the top of seat ring (key 2).

11. Place lower casing (key 5) on top of body. Replace

crush washers (key 67) and tighten cap screws

(key 6). Screw sleeve guide into lower actuator

casing (key 5) utilizing cap (key 70).

12. Lubricate the sleeve (key 14) in the upper plate

contact area and assemble the diaphragm/plates

system on the sleeve system. Tighten screws

(key 16) using a “star” criss-cross pattern for ve

times until proper specied torque is achieved.

13. Screw the special screws (key 68) – already on

the sleeve – to x the diaphragm/plates system

on the sleeve system. See Torque Specications

(Table 4) for proper torque values. Tighten special

screws (key 68) using a “star” criss-cross pattern

until proper specied torque is achieved.

14. Lubricate lower casing (key 5) on the diaphragm

contact area.

15. Carefully insert the trim system into the sleeve

guide (key 61).

16. Lubricate the diaphragm (key 20) on the upper

casing contact area.

17. Lubricate and mount the O-ring (key 69) on the

cap (key 70). Lubricate and mount O-rings (key 9)

and anti-friction rings (key 8) inside the cap

(key 70). Lubricate and mount O-ring (key 153)

on the stem (key 147). Carefully place the cap

on the upper actuator casing (key 11). Align the

travel indicator hole on the cap (key 70) to the

upper actuator casing travel indicator hole. Screw

8 screws (key 77) to tighten cap (key 70) to the

upper actuator casing (key 11). Bag diaphragm

at to lower casing diaphragm ange contact area.

Carefully place the top actuator casing on the top

of the lower actuator casing/trim system using a

stud to guide.

Note

Rotate the upper casing such that

the outer holes for sensing lines are

perpendicular to gas ow and outer

holes of lower casing.

18. Lubricate threads on bolts (key 21).

19. Bolt together the upper and lower actuator

casings (keys 11 and 5) using bolts (key 21),

washers (key 22) and nuts (key 23). See Torque

Specications (Table 4) for proper torque. Tighten

cap screws using a “star” criss-cross pattern for

ve times until proper specied torque is achieved.

20. Assemble one nut (key 151) to the stem (key 147)

until the specied torque is achieved and then

assemble another nut (key 151) to lock the

position of stem. Screw on the closing cap

(key 146). Mount O-ring (key 75) on the cap

(key 70).

21. If present, set the stem (key 139) through the

casing hole and tap it into the groove in the

diaphragm plate (key 18). Slide the travel indicator

tting (key 141) over the stem and tighten to the

cap (key 70).

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