Emerson T205 Instruction Manual download pdf (Page 8)

T205 Series

For internal at circular adjusting screw:

a. Remove the adjusting screw (key 35).

b. Take out the control spring and replace with

the desired spring.

c. Reinstall the adjusting screw.

d. Adjust the outlet pressure to the desired

control pressure setting, refer to steps 2 and

3 of Adjustment section.

e. Change the stamped spring range on

the nameplate. Skip to step 13.

For external square head adjusting screw:

a. Remove the adjusting screw (key 35) and

locknut (key 20).

b. Remove the closing cap (key 22), closing

cap gasket (key 25) and upper spring seat

(key 19).

c. Take out the control spring and replace with

the desired spring.

d. Reinstall the upper spring seat, closing cap

gasket, closing cap, locknut and

adjusting screw.

e. Adjust the outlet pressure to the desired

control pressure setting, refer to steps 2 and

3 of Adjustment section.

f. Change the stamped spring range on

the nameplate. Skip to step 13.

4. If further maintenance to the internal diaphragm

casing parts is required, remove the hex nuts (key 23)

and spring case cap screws (key 24). Remove the

diaphragm (key 10) plus attached parts by tilting

them so that the pusher post (key 8) slips off the lever

assembly (key 16). To separate the diaphragm from

the attached parts, unscrew the diaphragm cap screw

(key 38) from the pusher post. If the only maintenance

is the replacement of the diaphragm components, skip

to step 7.

5. To replace the lever assembly (key 16), remove the

machine screws (key 17). To replace the stem (key 14),

also perform Body Area Maintenance procedure steps 1

and 4 and pull the stem out of the lower casing (key 4).

With a Type T205M, grease the replacement stem seal

O-ring (key 30) with a good grade of lubricant and install

it on the stem (key 14).

6. Install the stem into the lower casing and perform

Body Area Maintenance procedure steps 7 through 9

as necessary.

7. Install the lever assembly (key 16) into the stem

(key 14) and secure the lever assembly with the

machine screws (key 17) using 14 to 19 inch-pounds /

1.6 to 2.1 N•m of torque.

8. Hold the pusher post and place diaphragm assembly

parts on the pusher post in the following order:

• diaphragm head gasket (key 45)

• diaphragm head (key 7)

• diaphragm (key 10)

• diaphragm head

• lower spring seat (key 50)

• washer (key 36)

Secure with diaphragm cap screws (key 38) using 60 to

72 inch-pounds / 6.8 to 8.1 N•m of torque.

9. Install the pusher post (key 8) and attached parts onto

the lever (key 16).

10. Install the spring case (key 3) on the lower casing

(key 4) so that the vent assembly (key 26) is correctly

oriented and secure them with the spring case cap

screws (key 24) and hex nuts (key 23) to nger

tightness only.

11. Install the parts into the spring case (key 3). Follow the

order below:

For internal at circular adjusting screw:

a. control spring (key 6)

b. adjusting screw (key 35)

For external square head adjusting screw:

a. control spring (key 6)

b. upper spring seat (key 19)

c. closing cap gasket (key 25)

d. closing cap (key 22)

e. locknut (key 20)

f. adjusting screw (key 35)

12. Turn the adjusting screw (key 35) clockwise until

there is enough control spring force to provide proper

slack to diaphragm (key 10). Using a crisscross pattern,

nish tightening the spring case cap screws (key 24)

and hex nuts (key 23) to 90 to 126 inch-pounds /

10.2 to 14.2 N•m of torque. Adjust the outlet pressure

to the desired control pressure setting, refer to the

Adjustment section.

13. For Type T205M, connect the downstream control line.

Refer to the Startup section before putting the regulator

back in operation.

TRIM OPTION CODE DIAPHRAGM MATERIAL DISK AND O-RING MATERIAL OPERATING TEMPERATURE RANGES

Standard Nitrile (NBR) Nitrile (NBR) -40 to 180°F / -40 to 82°C

VV Fluorocarbon (FKM) Fluorocarbon (FKM) 40 to 300°F / 4 to 149°C

TN Fluorinated Ethylene Propylene (FEP) Nitrile (NBR) -20 to 180°F / -29 to 82°C

TV Fluorinated Ethylene Propylene (FEP) Fluorocarbon (FKM) 40 to 180°F / 4 to 82°C

(1)

Fluorinated Ethylene Propylene (FEP) Perfluoroelastomer (FFKM) 0 to 180°F / -18 to 82°C

TE Fluorinated Ethylene Propylene (FEP) Ethylene Propylene Diene (EPDM) -20 to 180°F / -29 to 82°C

1. Includes 316 Stainless steel Trim Parts.

Table 5. Type T205 Trim Option Code

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

T205 Series 1

Comments to this Manuals

No comments

Emerson T205 Instruction Manual Page 8

Comments to this Manuals

Related products and manuals for Unknown Emerson T205