Emerson EZH and EZHSO Series Pressure Reducing Regulators Manual de instrucciones descargar pdf (Pagina 20)

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Types EZH and EZHSO

Type EZHSO Actuator Maintenance

1. Make a mark on the upper actuator casing (key 11),

lower actuator casing (key 5), intermediate ange

(key 25), and body (key 1) to indicate proper alignment.

2. Remove travel indicator assembly (keys 138, 139,

140, 141, 142, 143, 144, 145, and 192), if present, by

loosening the travel indicator tting (key 141) and lifting

out the travel indicator assembly.

3. Remove protective cap (key 146). Loosen and remove

hex nuts (key 151).

4. Remove cap screws (key 21), washers (key 22), and

hex nuts (key 23). Remove protective cap (key 146)

and remove hex nuts (key 151). Carefully lift the upper

actuator casing (key 11) off the lower actuator casing

(key 5).

5. Remove the socket head cap screws (key 16). Lift off

the diaphragm (key 20) and the inlet plate (key 18).

Remove O-rings (keys 15 and 17). Inspect the

diaphragm and O-rings for damage or wear, and

replace if necessary.

6. Inspect the upper actuator casing (key 11), O-ring

(key 9), anti-friction split rings (key 8), and anti-friction

ring (key 4) for damage or wear. If damaged, remove

the O-ring and split rings, and replace with new parts.

Lightly lubricate the O-ring and split rings. Place the

split rings in the body rst, then slide the O-ring between

the split rings.

7. Remove screws (key 24). Lift off the lower actuator

casing (key 5). Remove the hex socket cap screw

(key 154). Lift off the disk holder assembly (key 30).

8. Slide the sleeve (key 14) out of the lower actuator

casing (key 5) and slide the outlet plate (key 19) off of

the sleeve. Check the sleeve for scratches, burrs, or

other damage, and replace if necessary.

9. Inspect the lower actuator casing (key 5), O-ring

(key 9), anti-friction split rings (key 8), and anti-friction

ring (key 4) for damage or wear. If damaged, remove

the O-ring and split rings, and replace with new parts.

Lightly lubricate the O-ring and split rings. Place the

split rings in the body rst, then slide the O-ring between

the split rings.

10. Slide the outlet plate (key 19) onto the sleeve

(key 14) and slide the sleeve into the lower actuator

casing (key 5). Place the disk holder assembly

(key 30) on the sleeve adaptor (key 27). Insert the hex

socket cap screw (key 154) and tighten. See Torque

Specication able for proper torque.

11. Lightly lubricate the O-rings (keys 15 and 17) and the

inner and outer diaphragm (key 20) edges. Place the

inlet plate (key 18) and the diaphragm (key 20) on the

sleeve (key 14). Make sure O-rings (keys 15 and 17)

are correctly positioned. Insert and tighten the hex

socket cap screws (key 16). See Torque Specication

table for proper torque.

12. Carefully lift the lower actuator casing assembly (key 5)

and place on the body (key 1). Make sure to match up

the alignment marks. Secure with screws (key 24).

See Torque Specication table for proper torque.

13. Carefully place the upper actuator casing (key 11) on

the lower actuator casing (key 5). Make sure to match

up the alignment marks. Insert the two long bolts 180°

apart and away from anges. Place the washers

(key 22), hex nuts (key 23), and brackets (key 35) on

the long bolts and evenly tighten. Using proper bolting

techniques, install remaining short cap screws (key 21),

washers, and hex nuts. See Torque Specication table

for proper torque.

14. Tighten hex nuts (key 151), install protective cap

(key 146).

15. Place travel indicator assembly (keys 138, 139, 140,

141, 142, 143, 144, 145, and 192) in the upper actuator

casing (key 11), if present, and tighten the travel

indicator tting (key 141).

Type EZH DN 100 Actuator Assembly

Maintenance (Figure 17)

1. Remove travel indicator assembly (keys 71, 138, 139,

140, 141, 142, 143, 144, 145, and 192), if present, by

loosening the travel indicator tting (key 141) and lifting

out the travel indicator assembly.

2. Remove hex head cap screws (key 21), washers

(key 22), and hex nuts (key 23). Carefully lift the

upper actuator casing (key 11) off the lower actuator

casing (key 5). Inspect the upper actuator casing

(key 11), O-rings (key 9) and anti-friction rings

(key 8) for damage or wear. If damaged, remove and

replace with new parts. Place the anti-friction rings

in the body rst, then slide the O-ring between the

anti-friction rings.

3. Lift off the diaphragm/plates system. Remove O-ring

(key 15). Inspect diaphragm and O-rings for damage or

wear, and replace if necessary.

4. Remove sleeve guide (key 61) utilizing cap (key 70)

to unscrew.

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. Inspect for damage

or wear. If damaged, replace with new parts.

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Types EZH and EZHSO 1
LABELLING 5

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Emerson EZH and EZHSO Series Pressure Reducing Regulators Manual de instrucciones Pagina 20

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