Emerson T205 Instruction Manual download pdf (Page 6)

T205 Series

2. Slowly open the supply line shutoff valve (to the

blanketing valve) and leave it fully open.

3. Monitor the tank vapor space pressure.

Adjustment

WARNING

To avoid personal injury, property damage

or equipment damage caused by bursting

of pressure containing parts or explosion of

accumulated gas, never adjust the control

spring to produce an outlet pressure higher

than the upper limit of the outlet pressure

range (see Table 2) for that particular spring.

If the desired outlet pressure is not within

the range of the control spring, install a

spring of the proper range according to the

Diaphragm and Spring Case Area section of

the maintenance procedure.

Adjust the regulator control pressure setting to meet the

requirements of the speci c application. With a spring-

loaded regulator, the pressure setting may be adjusted to a

value within the spring range shown in Table 3. To adjust the

pressure setting, perform the following steps (key numbers

are referenced in Figures 6 and 7):

For internal  at circular adjusting screw:

1. Remove the closing cap (key 22).

2. Use a 1-inch / 25 mm hex rod or  at screwdriver to turn

the adjusting screw (key 35) either clockwise to increase

outlet pressure or counterclockwise to decrease outlet

pressure. The regulator will go into immediate operation.

To ensure correct operation, always use a pressure

gauge to monitor the tank blanketing pressure when

making adjustments.

3. After making the adjustment, replace the closing cap

gasket (key 25) and install the closing cap (key 22).

For external square head adjusting screw:

1. Loosen the locknut (key 20).

2. Turn the adjusting screw (key 35) either clockwise

to increase outlet pressure or counterclockwise to

decrease outlet pressure. Always use pressure gauge

to monitor the tank blanketing gas pressure when

making adjustments.

3. After making the adjustment, tighten the locknut

(key 20).

Shutdown

1. Close the nearest upstream shutoff valve.

2. Close the nearest downstream shutoff valve to vent the

regulator properly.

3. For a regulator with control line: Close the valve in

the control line and vent the diaphragm casing to

the atmosphere.

4. Open the vent valve between the regulator and the

downstream shutoff valve nearest to it. All pressure

between these shutoff valves is released through the

open vent valve, since a T205 Series remains open in

response to the decreasing downstream pressure.

Maintenance

Regulator parts are subject to normal wear and must be

inspected and replaced as necessary. The frequency

of inspection and replacement of parts depends upon

the severity of service conditions or the requirements

of local, state and federal regulations. Due to the care

Regulator Technologies takes in meeting all manufacturing

requirements (heat treating, dimensional tolerances, etc.),

use only replacement parts manufactured or furnished by

Regulator Technologies.

WARNING

To avoid personal injury, property damage or

equipment damage caused by sudden release

of pressure or explosion of accumulated

gas, do not attempt any maintenance or

disassembly without  rst isolating the

regulator from system pressure and relieving

all internal pressure from the regulator.

Regulators that have been disassembled for

repair must be tested for proper operation

before being returned to service. Only parts

Figure 5. Expanded View of the Body Area Showing the Body

Seal O-ring and Backup Ring Placement

Figure 6. Proper Bending of Cotter Pin (key 15)

COTTER PIN (KEY 15)

BODY SEAL

O-RING (KEY 11)

BODY (KEY 1)

BACKUP RING

(KEY 49)

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

T205 Series 1

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Emerson T205 Instruction Manual Page 6

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