Emerson SR5 Bedienerhandbuch PDF herunterladen (Seite 6)

Type SR5

3. Remove body from the line to inspect the internal

wetted parts.

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4. Loosen the nut (key 16) while holding wrench

ats on plug (key 3) to inspect internal wetted parts.

Remove the lock washer (key 24) and at washer

(key 23). The lower spring seat (key 8), guide ring

(key 9), diaphragm (key 7), and plug O-ring (key 3)

can now be removed from the plug (key 2).

An optional lower diaphragm plate (key 10) and

O-ring (key 4) are included for the constructions

offering protection against vacuum conditions.

5. Remove the plug (key 2) through the inlet port of

the body (key 1). Inspect parts for damage.

Replace if damage is noted. Refer to the section

titled Soft Seat Maintenance when the seat needs

to be replaced.

6. Reassemble in the reverse order of the above

procedure. Start by inserting the plug (key 2)

through the inlet port of the body (key 1). The

order is listed below or please refer to Figure 3.

a.) Plug (key 2)

b.) Plug O-ring (key 3)

c.) Diaphragm plate (key 10) (vacuum

protection construction only)

d.) Diaphragm plate O-ring (key 4) (vacuum

protection construction only)

e.) Diaphragm gasket (key 6) (Metal

diaphragms only)

f.) Diaphragm (key 7)

g.) Diaphragm gasket (key 6) (Metal

diaphragms only)

h.) Guide ring assembly (keys 9 and 5)

i.) Lower spring seat (key 8)

j.) Flat Washer (key 23)

k.) Lock Washer (key 24)

l.) Hex Nut (key 16)

7. Hold wrench ats on plug (key 2), then torque hex

nut (key 16) to 6 to 8-inch-pounds (0,7 to 0,9 N•m)

for the NPS 1/2 and 3/4 (DN 15 and 20), 5 to 7 foot-

pounds (7 to 9 N•m) for the NPS 1 and 1-1/2 (DN 25

and 40) and 28 to 30 foot-pounds (38 to 41 N•m) for

the NPS 2 and 3. After tightening, apply Loctite 290

or equivalent to the nut/thread interface.

8. Position diaphragm assembly in body (key 1).

Replace regulator spring (keys 12 and 13, when

applicable) and upper spring seat (key 11).

Replace the spring case (key 14) and sanitary

clamp (key 15). Torque clamp nuts to 20 to 22 foot-

pounds (27 to 30 N•m) for the NPS 1/2 through

1-1/2 (DN 15 through 40) and 38 to 40 foot-pounds

(52 to 54 N•m) for the NPS 2 and 3 (DN 50 and 80).

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9. Install in pipeline and follow Startup and

Adjustment procedures.

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Take care not to damage the internal/wetted surface

nish when performing Soft Seat Maintenance.

1. Disassemble the regulator as stated above.

2. To access soft seat (key 28), unscrew the lower

plug (key 27) from the upper plug (key 26). If

damaged, replace with new part. Apply Loctite 246

or equivalent to the male threads before assembly.

Proper torque for the assembly is 6 to 8-inch-pounds

(0,7 to 0,9 N•m) for the NPS 1/2 and 3/4 (DN 15 and

20); 8 to 10-inch-pounds (0,9 to 1,1 N•m) for the

NPS 1 and NPS 1-1/2 x 1 (DN 25 and 40 x 25); and

5 to 7 foot-pounds (7 to 9 N•m) for the NPS 1-1/2

(DN 40). Torque for NPS 2 and 3 (DN 50 and 80) is

23 to 25 foot-pounds (31 to 34 N•m).

3. Reassemble as stated in the prior section.

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When corresponding with your local Sales Office

about this equipment, always reference the

equipment serial number and FS number that can

be found on the nameplate.

1 2 3 4 5 6 7 8 9 10 11 12

Type SR5 1

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