Emerson T205 Instruction Manual download pdf (Page 9)

T205 Series

To Convert Constructions

From Type T205 to Type T205M

A control line is needed. New parts required: keys 30, 31

and 17.

1. Remove pipe plug (key 27, Figure 7) from the lower

casing (key 4). Use this port to connect the control

line from downstream. See item number 5 in the

Installation section.

2. Refer to steps 1 and 5 in the Body Area Maintenance

section to remove the four pitot tube machine screws

(key 17) and pitot tube (key 32, Figure 7).

3. Insert the throat seal O-ring (key 31, Figure 8) and one

machine screw (key 34).

4. Insert the stem seal O-ring (key 30, Figure 8) by

following steps 1 through 6 in the Diaphragm and Spring

Case Area Maintenance section.

From Type T205M to Type T205

New parts required: keys 27, 32 and 17.

1. Insert pipe plug (key 27, Figure 7) in the lower casing

(key 4).

2. Follow steps 1, 3 and 4 of Diaphragm and Spring Case

Area Maintenance Section to remove one machine

screw (key 34, Figure 8), the stem seal O-ring (key 30,

Figure 8) and the throat seal O-ring (key 31, Figure 8)

blocking the registration port.

3. Insert pitot tube (key 32, Figure 7) and four pitot

tube machine screws (key 17) using 14 to

19 inch-pounds / 1.6 to 2.1 N•m of torque as outlined in

step 5 of the Body Area Maintenance section.

Parts Ordering

When corresponding with your local Sales Ofce about this

regulator, include the type number and all other pertinent

information stamped on the nameplate. Specify the eleven-

character part number when ordering new parts from the

following parts list.

Parts List

Key Description Part Number

Spare Parts Kit (Included are keys 9, 10,

11, 12, 15, 25 and 45)

(see Table 6 for Trim Option Codes)

Standard Trim RT205XXDD12

VV Trim RT205XXVV12

TN Trim RT205XXTN12

TV Trim RT205XXTV12

TK Trim RT205XXTK12

TE Trim RT205XXTE12

1 Body See Table 4

2 Cap Screw (2 required)

For WCC Carbon steel or Gray Cast iron casing 1C856228992

For CF8M/CF3M Stainless steel casing 18B3456X012

3 Spring Case

Gray Cast iron ERSA02558A0

WCC Carbon steel ERSA00195A1

CF8M/CF3M Stainless steel ERSA00195A0

4 Lower Casing

Gray Cast iron 47B2271X012

WCC Carbon steel ERSA00196A1

CF8M/CF3M Stainless steel ERSA00196A0

5* Orice

303 Stainless steel (standard)

1/8-inch / 3.2 mm 1A936735032

1/4-inch / 6.4 mm 0B042035032

3/8-inch / 9.5 mm 0B042235032

1/2-inch / 13 mm 1A928835032

9/16-inch / 14 mm 1C425235032

316 Stainless steel (NACE)

(2)

1/8-inch / 3.2 mm 1A9367X0022

1/4-inch / 6.4 mm 0B0420X0012

3/8-inch / 9.5 mm 0B0422X0012

1/2-inch / 13 mm 1A9288X0012

9/16-inch / 14 mm 1C4252X0022

6 Spring See Table 3

7 Diaphragm Head (2 required)

Stainless steel 17B9723X032

8 Pusher Post

For Nitrile (NBR) or

Fluorocarbon (FKM) diaphragm

303 Stainless steel (standard) 18B3462X032

316 Stainless steel (NACE)

(2)

18B3462X012

For Fluorinated Ethylene

Propylene (FEP) diaphragm

Stainless steel (NACE)

(2)

ERSA00876A0

9* Diaphragm Gasket

For Fluorinated Ethylene

Propylene (FEP) diaphragm

Nitrile (NBR) ERSA00713A0

10* Diaphragm

Nitrile (NBR) 17B9726X012

Fluorocarbon (FKM) 23B0101X052

Fluorinated Ethylene Propylene (FEP) ERSA00193A0

11* Body Seal O-ring

Nitrile (NBR) 1H993806992

Fluorocarbon (FKM) 1H9938X0012

Peruoroelastomer (FFKM) 1H9938X0042

Ethylene Propylene Diene (EPDM) 1H9938X0022

12* Insert Seal O-ring

Nitrile (NBR) 1B885506992

Fluorocarbon (FKM) 1B8855X0012

Peruoroelastomer (FFKM) 1B8855X0062

Ethylene Propylene Diene (EPDM) 1B8855X0022

13* Disk Assembly

303 Stainless steel (standard)

Nitrile (NBR) 1C4248X0202

Fluorocarbon (FKM) 1C4248X0052

Ethylene Propylene Diene (EPDM) 1C4248X0302

316 Stainless steel (NACE)

(2)

Nitrile (NBR) 1C4248X0252

Fluorocarbon (FKM) 1C4248X0192

Peruoroelastomer (FFKM) 1C4248X0332

Ethylene Propylene Diene (EPDM) 1C4248X0152

14 Stem

303 Stainless steel (standard) 17B3423X012

316 Stainless steel (NACE)

(2)

17B3423X022

*Recommended spare part

1. Use for optional external square head adjusting screw assembly recommended for 1.2 to 2.5 psig / 83 to 172 mbar, 2.5 to 4.5 psig / 0.17 to 0.31 bar and 4.5 to 7 psig / 0.31 to 0.48 bar

spring ranges only.

2. NACE Standard MR0175-2002.

Key Description Part Number

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

T205 Series 1

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Emerson T205 Instruction Manual Page 9

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