Fisherr 1261-R and 1261-E Self-Operated Control Valves

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Instruction Manual
D103528X012

1261-R and 1261-E Valves
November 2012

Fisherr 1261-R and 1261-E Self-Operated Control Valves

Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Packing Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 6 Replacing Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Trim Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Parts Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 1. Fisher 1261-R Pressure-Reducing Valve

Introduction
Scope of Manual
This instruction manual provides installation, adjustment, maintenance, and parts information for the Fisher 1261-R and 1261-E Self-Operated control valves. Refer to separate instruction manuals for more information about the valve. The valve body assembly of these valves are the same as the valve body assembly for Fisher 1100 control valves. Do not install, operate, or maintain 1261-R or 1261-E valves without being fully trained and qualified in valve, actuator, and accessory installation, operation, and maintenance. To avoid personal injury or property damage, it is important to carefully read, understand, and follow all the contents of this manual, including all safety cautions and warnings. If you have any questions about these instructions, contact your Emerson Process Management sales office before proceeding.
www.Fisher.com

1261-R and 1261-E Valves
November 2012
Table 1. Specifications End Connection Styles Flanged: CL150 RF and CL300 RF per ASME B16.5. DIN PN 10, 16, 40, Per EN ISO 1092-1, Type B and F Maximum Inlet Pressure and Temperature Flanged: Compatibility with CL150, 300 per ASME B16.34 EN ISO 1092-1,2,3,4

Instruction Manual
D103528X012
Shutoff Classification per ANSI/FCI 70-2 and IEC 60534-4 Class IV is standard Class VI is optional Flow Characteristic and Flow Direction Trim Standard: Linear. Flow Up per valves with unbalanced plug. Flow Down per valves with balanced plug. Trim for Low Noise (Multihole, Whisper): Linear and Flow Up Trim Anticavitation (CavitrolTM): Linear and Flow Down

Description
Fisher 1261-R and 1261-E are pressure globe style single-port valves with metal seats, cage guiding and push-down-to-close valve plug action. The 1261-R is used for pressure-reducing service. Increasing the pressure in the diaphragm casing moves the actuator stem downward. The 1261-E is used for pressure-relief service. Increasing the pressure in the diaphragm casing moves the actuator stem upward. The 1261.00-R and 1261.00-E valves use an unbalanced plug. The 1261.01-R and 1261.01-E use balanced valve plugs. (See bulletin 1100 Control Valves for different types of cages and balanced plugs).
Specifications
Specifications for the 1261-R and 1261-E are shown in table 1. Refer to separate manuals for information concerning the actuator.

Table 2. Codification for Fisher 1261 Valves

CODE

Digit

DIGIT

DESCRIPTION

Standard Trim

Low noise trims (Multihole)

Anticavitation Trim (Cavitrol III 1 Step)

Anticavitation Trim (Cavitrol III 2 Steps)

Low noise level trim( Whisper III A,B,C,D3)

Non balanced Plug

Balanced Plug (seal Keilpac).

Balanced Plug (seal MSE)

DIRECTION FLOW

Flow-Up

Flow-Down
Flow-Down
Flow-Up Flow-Up Flow-Down

Flow-Down

Instruction Manual
D103528X012

1261-R and 1261-E Valves
November 2012

Table 3. Available Shutoff Classifications per ANSI/FCI 70-2 and IEC 60534-4

Valve Type

Type Balanced

Max. Temp(1)

Seat Type

Enclosure Type

Metal to Metal

Standard

400_C

Metal to Metal

Optional

1261.00

None

200_C

Metal to PTFE

Standard

316_C

Metal to Ekonol

Standard

Metal to Metal

Standard

1261.01

KEILPAC

200_C(3)

Metal to Metal

Optional

Metal to PTFE

Standard

Metal to Metal

Standard

1261.04

MSE

316_C

Metal to Metal

Optional

Metal to Ekonol

Standard

1. See temperature capabilities of actuator diaphragm material 2. Valves with antinoise trim (Multihole, Whisper TrimTM, etc) flow direction will be Flow-Up. 3. Maximum temperature limited by Keilpac gasket material.

Flow Direction Flow-Up
Flow-Down(2)

Table 4. Maximum Flow Coefficients (Cv) with Quick Opening per 1261.00-R and 1261.00-E valves

VALVE SIZE

SEAT DIAMETER (mm)

NPS

1/2

6.9

3/4 1

0.7

1.5

3.5

8.1

9.2 11.6

1-1/2 2

3.5

8.1

11.6

Stroke (mm)

1.5

4.5

Notes: 1. Kv = 0.865 x Cv

Table 5. Maximum Flow Coefficients (Cv) with Quick Opening per 1261.01-R, 1261.04 R, 1261.01 E and 1261.04 E Valves

VALVE SIZE

SEAT DIAMETER (mm)

NPS

3 4

117

139

Stroke (mm)

Notes: 1. Kv = 0.865 x Cv

1261-R and 1261-E Valves
November 2012

Figure 2. Typical Installation Schematics

1/2 NPT

NEEDLE VALVE

R ACTUATOR

BYPASS LINE

STRAINER

1261 PRESSURE-REDUCING VALVE

PRESSURE -- REDUCING INSTALLATION

Instruction Manual
D103528X012

NEEDLE VALVE 1/2 NPT

E ACTUATOR BYPASS LINE

STRAINER

1261 PRESSURE-RELIEF VALVE

PRESSURE -- RELIEF INSTALLATION

Installation
WARNING
Always wear protective gloves, clothing, and eyewear when performing any installation operations to avoid personal injury. Personal injury or equipment damage caused by sudden release of pressure may result if the valve assembly is installed where service conditions could exceed the limits given in table 1 or the appropriate nameplate. To avoid such injury or damage, provide a relief valve for overpressure protection as required by government or accepted industry codes and good engineering practices. Check with your process or safety engineer for any additional measures that must be taken to protect against process media. If installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section in this instruction manual.
CAUTION
When ordered, the valve configuration and construction materials were selected to meet particular pressure, temperature, pressure drop, and controlled fluid conditions. Since some body/trim material combinations are limited in their pressure drop and temperature ranges, do not apply any other conditions to the valve without first contacting your Emerson Process Management sales office.
1. Before installing the valve, inspect it to be certain that the valve body cavity is free of foreign material. Clean out all pipelines to remove scale, welding slag, and other foreign materials. 2. The control valve assembly may be installed in any orientation unless limited by seismic criteria. If the regulator or relief valve is to be used for steam service, the valve should be installed with the actuator positioned below the pipeline, and the control line should be sloped down toward the diaphragm casing. This is to ensure that any forming condensate will maintain a water seal to protect the diaphragm. For more information consult your Emerson Process Management sales office. Flow through the valve must be in the direction indicated by the arrow cast on the valve.
4

Instruction Manual
D103528X012

1261-R and 1261-E Valves
November 2012

3. Use accepted piping practices when installing the valve in the pipeline. Use a suitable gasket between the valve and pipeline flanges. 4. It is recommended that a strainer be installed in the pipeline ahead of the regulator or relief valve to protect it while in service. (see figure 2). 5. If continuous operation is required during inspection or maintenance, install a three-valve bypass around the valve assembly.(see figure 2) 6. If the actuator and valve are shipped separately, refer to the appropriate actuator instruction manual for the actuator mounting procedure.
WARNING
Personal injury could result from packing leakage. Valve packing was tightened before shipment; however the packing might require some readjustment to meet specific service conditions.

Maintenance
WARNING
Avoid personal injury or property damage from sudden release of process pressure or bursting of parts. Before performing any maintenance operations:
D Do not remove the actuator from the valve while the valve is still pressurized. D Disconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the actuator cannot suddenly open or close the valve. D Isolate the regulator or relief valve from the system pressure, and relieve all internal pressure. D Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure from both sides of the valve. Drain the process media from both sides of the valve. D Vent the power actuator loading pressure and relieve any actuator spring precompression as described in the disassembly actuator section.. D Use lock-out procedures to be sure that the above measures stay in effect while you work on the equipment. D Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal injury. D The valve packing area may contain process fluids that are pressurized, even when the valve has been removed from the pipeline. Process fluids may spray out under pressure when removing the packing hardware or packing rings. D Check with your process or safety engineer for any additional measures that must be taken to protect against process media.
Valve parts are subjects to normal wear and must be inspected and replaced as necessary. Inspection and maintenance frequency depends on the severity of service conditions The maintenance operations may be performed with the valve in the line.
Note Whenever a gasket seal is disturbed by removing or shifting gasket parts, a new gasket should be installed upon reassembly. This is necessary to ensure a good gasket seal.

1261-R and 1261-E Valves
November 2012
Figure 3. Typical Packing Assemblies for 1261 Valves

Instruction Manual
D103528X012

TYPICAL PTFE PACKING, V-RING

TYPICAL BRAIDED PTFE PACKING

TYPICAL GRAPHITE PACKING

TYPICAL ENVIRO-SEALTM PTFE PACKING

TYPICAL ENVIRO-SEAL GRAPHITE PACKING

Maintenance information which follows for packing maintenance, replacing packing, trim maintenance, and repairing are for the 1261 valve with plain bonnet. A 1261 valve with a plain bonnet is shown in figure 4.
Packing Maintenance
Key numbers refer to figure 3. For spring-loaded single PTFE V-ring packing, the packing spring (key 112) maintains a sealing force on the packing. If leakage is noted around the bushing of the packing flange (key 101), check to be sure the packing flange is touching the bonnet (key 12 fig 4). If the packing flange is not touching the bonnet, tighten the packing flange nuts (key 103) until the packing flange is against the bonnet. If leakage cannot be stopped in this manner, proceed to the Replacing Packing procedure. If there is undesirable packing leakage with other than spring-loaded packing, first try to limit the leakage and establish a stem seal by tightening the packing flange nuts (key 103) to at least the minimum recommended torque in table 6. However, do not exceed the maximum recommended torque in table 6, or excessive friction may result.
6

Instruction Manual
D103528X012

1261-R and 1261-E Valves
November 2012

If the packing (fig 4, key 13) is relatively new and tight on the stem, and if tightening the packing flange nuts does not stop the leakage, it is possible that the valve stem is worn or nicked so that the seal cannot be made. The surface finish of a new valve stem is critical for making a good packing seal. If the leakage comes from the outside diameter of the packing, it is possible that the leakage is caused by nicks or scratches around the packing box wall. While replacing the packing per the numbered steps below, inspect the valve stem and packing box wall for nicks and scratches.
Replacing Packing
1. Isolate the pressure-reducing or pressure-relief valve from the line pressure, release pressure from both sides of the valve body, and drain the process media from both sides of the valve. Release all pressure from the actuator. Use lock-out procedures to be sure that the above measures stay in effect while you work on the equipment. 2. Disconnect any leak-off piping from the bonnet. Disconnect the stem connector, and then remove the actuator from the valve by unscrewing the leg post nuts (key 11, figure 6). 3. Loosen the packing flange nuts (key 103) so that the packing is not tight on the valve stem. Remove any travel indicator parts and stem lock nuts from the valve stem threads.
WARNING
To avoid personal injury or property damage caused by uncontrolled movement of the bonnet, loosen the bonnet by following the instructions in the next step. Do not remove a stuck bonnet by pulling on it with equipment that can stretch or store energy in any other manner. The sudden release of stored energy can cause uncontrolled movement of the bonnet.

Note The following step also provides additional assurance that the valve body fluid pressure has been relieved.

4. Hex nuts (key 11) attach the bonnet (key 12) to the valve body (key 1). Loosen these nuts approximately 3mm (1/8 inch). Then loosen the body-to-bonnet gasketed joint by either rocking the bonnet or prying between the bonnet and valve body. Work the prying tool around the bonnet until the bonnet loosens. If no fluid leaks from the joint, remove the nuts completely and carefully lift the bonnet off the valve stem.
CAUTION
When lifting the bonnet (key 12), be sure that the valve plug and stem remains in the valve and on the seat. This will avoid damage to the seating surfaces as a result of the assembly dropping from the bonnet after being lifted part way out. The parts are also easier to handle separately.
5. Unscrew the nuts (key 10) that secure the bonnet (key 12) to the valve (key 1). Carefully lift off the bonnet. 6. If the valve plug and stem start to lift with the bonnet, use a brass or lead hammer on the end of the stem and tap it back down. Set the bonnet on a protective surface to prevent damage to the bonnet gasket surface. 7. Remove the bonnet gasket (key 22), and cover the opening in the valve to protect the gasket surface and prevent foreign material from getting into the valve cavity. 8. Remove the packing flange nuts and packing flange (keys 103 and 101, fig 3). Carefully push out all the remaining packing box parts from the bonnet using a rounded rod or other tool that will not scratch the packing box wall or bottom guide bushing. Clean the packing box and the metal packing box parts. 9. Inspect the valve stem threads and packing box surfaces for any sharp edges that might cut the packing. Scratches or burrs could cause packing box leakage or damage to the new packing. If the surface condition cannot be improved by light sanding, replace the damaged parts.

1261-R and 1261-E Valves
November 2012

Instruction Manual
D103528X012

10. Remove the covering protecting the valve cavity, and install a new gasket set (key 22 and 34), making sure the gasket seating surfaces are clean and smooth. Then slide the bonnet over the stem and onto the bonnet studs (key 11).

Note
The bolting procedures in step 11 include - but are not limited to - ensuring that bolting threads are clean, and the nuts are evenly tightened onto the studs in a crisscross pattern. Tightening one nut may loosen an adjacent nut. Repeat the crisscross tightening pattern several times until each nut is tight and the body-to-bonnet seal is made. When the operating temperature has been reached, perform the torquing procedure once again.

Table 6. Recommended Torque for Packing Flange Nuts

STEM DIAMETER

RATING

GRAPHITE PACKING

Minimum Torque

Maximum Torque

Inch

ASME

DIN

N·m

Lbf·in

N·m

Lbf·in

CL150

2.5

3.8

0.47

CL300

3.4

5.1

PN40

3.1

4.6

PTFE PACKING

Minimum Torque

Maximum Torque

N·m

Lbf·in

N·m

Lbf·in

1.9

2.8

2.5

3.7

2.3

3.5

Table 7. Recommended Torque for Body to Bonnet Bolting

DN mm

NPS

RATING

ASME

DIN

SIZE BOLTED

8.8, SA-193-B7, B16

N·m

Lbf·in

CL150

15, 20, 25 1/2, 3/4, 1

CL300

PN40

M12

CL150

40, 50

1-1/2, 2

CL300

PN40

M16

160

118

CL150

80, 100

3, 4

CL300

PN40

M16

160

118

SA-193-B8M CL 2

N·m

Lbf·in

160

118

160

118

A2.70

N·m

Lbf·in

120

11. Lubricate the bonnet studs (key 10), nuts (key 11), and the surface between the nuts and bonnet with MoS2 (Molykote 111, paste with large solid content) lubricant or equivalent. Tighten the nuts (key 11) in a crisscross pattern until the metallic stop at the bottom side of the bonnet flange contacts the body surface. this will guarantee that the body-to-bonnet joint will withstand test pressures and application service conditions. Use bolt torques in table 7 as guidelines. 12. Install new packing and the metal packing box parts according to the appropriate arrangement in figure 3. Place a smooth-edged pipe over the valve stem, and gently tap each soft packing part into the packing box, being sure that air is not trapped between adjacent soft parts. 13. Slide the packing flange (keys 101) into position. Lubricate the packing flange studs (key 102) and the faces of the packing flange nuts (key 103). Install the packing flange nuts.

Note
The torque values discussed in step 14 and shown in table 6 are recommended guidelines only and are presented as a starting point for this procedure. Tightening the packing flange nuts to a torque value that exceeds the table guidelines, in order to obtain a seal, may indicate other problems.

14. For spring-loaded PTFE V-ring packing (figure 3), tighten the packing flange nuts until the packing flange (key 101) contacts the bonnet.

Instruction Manual
D103528X012

1261-R and 1261-E Valves
November 2012

For graphite packing (figure 3 ), tighten the packing flange nuts to the maximum recommended torque shown in table 6. Then, loosen the packing flange nuts, and retighten them to the recommended minimum torque shown in table 6. For other packing types (figure 3), tighten the packing flange nuts alternately in small equal increments until one of the nuts reaches the minimum recommended torque shown in table 6. Then, tighten the remaining flange nut until the packing flange is level and at a 90- degree angle to the valve stem. Mount the actuator on the bonnet (key 12) and reconnect the actuator and valve plug stem according to the procedure in the appropriate actuator instruction manual. Check for leakage around the top bushing when the valve assembly is being put into service. Retighten the packing flange nuts as required.
Trim Maintenance
Key numbers in this section refer to figure 4.
Disassembly
1. Remove the actuator and the bonnet as described in steps 1 through 4 of the Replacing Packing procedure.
WARNING
Use care to avoid damaging the gasket sealing surfaces. The surface finish of the stem of the valve plug (key 8) is critical for making a good packing seal. The seating surfaces of the seat ring (key 2) and, the plug (key 7) are critical for tight shutoff. Assume all these parts are in good condition and protect them accordingly unless inspection reveals otherwise.

2. Packing parts can be removed from the bonnet if desired. Replace this part as described in the packing maintenance procedure. 3. Lift the valve plug and stem (key 7 and 8) out of the valve. If the valve plug is to be reused, tape or otherwise protect the valve plug seating surface to prevent scratches. 4. Remove the cage (key 6), the associated gaskets (key 22 and 34. If the cage is stuck in the valve, use a rubber mallet to strike the exposed portion of the cage at several points around its circumference. 5. Remove the seat ring (key 2), seat ring adapter where used on a restricted-trim (key 2.1 fig 6.2) soft seat ring construction, and seat ring gasket (key 4). 6. Inspect parts for wear or damage which would prevent proper operation of the valve. Replace or repair trim parts as appropriate.
Assembly
1. Install the seat ring gasket ( key 4 ), and seat ring. With a PTFE seat ring construction, install the disk and disk retaining, if is necessary. 2. Install the cage (key 6). Any rotational orientation of the case with respect to the valve body is acceptable. 3. Slide the valve plug (key 7 and 8) and stem assembly, into the cage. Make sure the seal ring is evenly engaged in the entrance chamfer at the top of the cage to avoid damaging the ring. 4. Clean the bonnet and cage gaskets seating surfaces, and install a new gasket (key 22 and 34).
Note If the packing is to be reused and was not removed from the bonnet, perform the following step carefully to avoid damaging the packing with the stem threads.

1261-R and 1261-E Valves
November 2012

Instruction Manual
D103528X012

5. Mount the bonnet on the valve body, and complete the assembly according to steps 11 through 14 of the replacing packing procedures, omitting steps 12 and 13 if new packing is not being installed.

Parts Ordering
Each valve is assigned a serial number, which can be found on the valve or on the nameplate wired to the valve if it is shipped without an actuator. This same number also appears on a nameplate that is attached to the actuator diaphragm casing when the valve is shipped from the factory as part of a valve assembly. Refer to this serial number when contacting your Emerson Process Management sales office for technical assistance. When ordering replacement parts, refer to this serial number and to the part description and part number from the following parts list.
WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Process Management should not, under any circumstances, be used in any Fisher valve, because they may void your warranty, might adversely affect the performance of the valve, and could cause personal injury and property damage.

Instruction Manual
D103528X012

1261-R and 1261-E Valves
November 2012

Parts List

Note Except where indicated, sizes shown are valve sizes.

Key Description

Part Number

Valve Body

If you need a valve body as a replacement part, order by valve

size, serial number and desired material. contact your Emerson

Process Management sales office for additional information.

Seat ring

See following table

Seat ring gasket

See following table

Cage

See following table

Plug

See following table

Stem plug

See following table

Key Description

Part Number

10 Bonnet studs

See following table

11 Bonnet nuts

See following table

12 Bonnet

If you need a bonnet as a replacement part, order by valve size

and stem diameter, serial number and desired material. Contact

your Emerson Process Management sales office for additional

information

13 Packing assembly

See following table

21 Balanced seal ring plug

See following table

22 Body/Bonnet gasket

See following table

34 Cage gasket

See following table

Key 2 Metal Seat Rings
VALVE SIZE

NPS

15, 20, 25

1/2, 3/4, 1

20, 25

3/4, 1

40, 50

1-1/2, 2

80, 100

3, 4

SEAT PORT DIAMETER

Inch

0.16

0.24

0.39

0.59

0.79

1.18

0.39

0.59

0.79

1.18

1.57

1.97

0.79

1.18

1.57

1.97

2.56

3.15

3.74

S31600
GP16511.416 GP16512.416 GP16513.416 GP16514.416 GP16515.416 GP16527.416 GP16184.416 GP16516.416 GP16517.416 GP16518.416 GP16519.416 GP16523.416 GP16520.416 GP16521.416 GP16522.416 GP16524.416 GP16525.416 GP16526.416 GP16529.416

METAL SEAT RING
S42000
GP16511.420 GP16512.420 GP16513.420 GP16514.420 GP16515.420 GP16527.420 GP16184.420 GP16516.420 GP16517.420 GP16518.420 GP16519.420 GP16523.420 GP16520.420 GP16521.420 GP16522.420 GP16524.420 GP16525.420 GP16526.420 GP16529.420

S31600 with Alloy 6 hard facing GP16511.46C GP16512.46C GP16513.46C GP16514.46C GP16515.46C GP16527.46C GP16184.46C GP16516.46C GP16517.46C GP16518.46C GP16519.46C GP16523.46C GP16520.46C GP16521.46C GP16522.46C GP16524.46C GP16525.46C GP16526.46C GP16529.46C

1261-R and 1261-E Valves
November 2012

Instruction Manual
D103528X012

Key 2, 2.1 and 2.2 Metal-PTFE Seat Rings

VALVE SIZE

SEAT PORT DIAMETER

Seat Ring S31600

Retainer S31600

Disk PTFE

0.16

0.24

15, 20, 25

1/2, 3/4, 1

0.39

0.59

0.79

20, 25

3/4, 1

1.18

0.39

0.59

0.79

40, 50

1-1/2, 2

1.18

1.57

1.97

0.79

1.18

1.57

80, 100

3, 4

1.97

2.56

3.15

3.74

PTFE-SEAT RING, RETAINER, AND DISK

Disk EKONOL

GP16503.416 GP16504.416 GP16505.416 GP16506.416 GP16507.416 GP16508.416 GP22880.416 GP16585.416 GP16586.416 GP16587.416 GP16588.416 GP16589.416 GP16500.416 GP16501.416 GP16502.416 GP16590.416 GP16591.416 GP16592.416 GP16510.416

GP16593.416 GP16593.416 GP16594.416 GP16595.416 GP16596.416
--GP22881.416 GP16597.416 GP16598.416 GP16599.416 GP16600.416
--GP16598.416 GP16599.416 GP16600.416
---------

GD8900001PT GD8900002PT GD8900003PT GD8900004PT GD8900005PT GD8900009PT GD8900006PT GD8900007PT GD8900008PT GD1486381PT GD8900010PT GD8900011PT GD8900008PT GD1486381PT GD8900010PT GD8900011PT GD8900012PT GD8900013PT GD8900036PT

GD8900017EK GD8900018EK GD8900019EK GD8900004EK GD8900005EK GD8900009EK GD8900022EK GD8900023EK GD8900024EK GD8800611EK GD8900035EK GD8000176EK GD8900024EK GD8800611EK GD8900035EK GD8000176EK GD8800281EK GD8800175EK GD8800462EK

Key 6 Cage

VALVE SIZE

SEAT PORT DIAMETER

1261.00

NPS

Inches

SA-351 CF8M

17.4PH Hardened

15, 20, 25

1/2, 3/4, 1

4, 6, 10 15, 20, 30

0.16 to 1.18

GP16086.48M GP16086.4PH

40, 50

1-1/2, 2

10, 15, 20 30, 40

0.39 to 1.57

GP16087.48M GP16087.4PH

1.97

GP16087.48M GP16087.4PH

20, 30 40

0.79 to 1.57

GP16089.48M GP16089.4PH

1.97

GP16089.48M GP16089.4PH

80, 100

3, 4

2.56

GP16090.48M GP16090.4PH

3.15

GP16091.48M GP16091.4PH

3.74

GP16092.48M GP16092.4PH

1. Bonnet Spacer GP85461.4 is needed for 1261.01 and 1261.04 Balanced Plug Valve. (NPS 2 only ).

1261.01 and 1261.04

SA-351 CF8M

17.4PH Hardened

---

GP16093.48M(1) ---
GP16095.48M GP16096.48M GP16097.48M GP16098.48M

GP16093.4PH(1) ---
GP16095.4PH GP16096.4PH GP16097.4PH GP16098.4PH

Instruction Manual
D103528X012

1261-R and 1261-E Valves
November 2012

Key 7.1 Valve Plug for assembly 1261.00

VALVE SIZE

SEAT PORT DIAMETER

NPS

Inches

0.16

0.24

15, 20, 25

1/2, 3/4, 1

0.39

0.59

0.79

20, 25

3/4, 1

1.18

0.39

0.59

0.79

40, 50

1-1/2, 2

1.18

1.57

1.97

0.79

1.18

1.57

80, 100

3, 4

1.97

2.56

3.15

3.74

S31600
GP16729.416 GP16730.416 GP16731.416 GP16732.416 GP16733.416 GP16734.416 GP18637.416 GP16735.416 GP16736.416 GP16737.416 GP16738.416 GP16742.416 GP16739.416 GP16740.416 GP16741.416 GP16744.416 GP16745.416 GP16746.416 GP16747.416

METAL TO METAL AND METAL PTFE

S42000

S31600 with

Alloy 6 hard facing Alloy 6 Seat & Guide

GP16729.420

GP16729.46C

GP16729.46T

GP16730.420

GP16730.46C

GP16730.46T

GP16731.420

GP16731.46C

GP16731.46T

GP16732.420

GP16732.46C

GP16732.46T

GP16733.420

GP16733.46C

GP16733.46T

GP16734.420

GP16734.46C

GP16734.46T

GP18637.420

GP18637.46C

GP18637.46T

GP16735.420

GP16735.46C

GP16735.46T

GP16736.420

GP16736.46C

GP16736.46T

GP16737.420

GP16737.46C

GP16737.46T

GP16738.420

GP16738.46C

GP16738.46T

GP16742.420

GP16742.46C

GP16742.46T

GP16739.420

GP16739.46C

GP16739.46T

GP16740.420

GP16740.46C

GP16740.46T

GP16741.420

GP16741.46C

GP16741.46T

GP16744.420

GP16744.46C

GP16744.46T

GP16745.420

GP16745.46C

GP16745.46T

GP16746.420

GP16746.46C

GP16746.46T

GP16747.420

GP16747.46C

GP16747.46T

Key 7.2 Valve Plug for assembly 1261.01

VALVE SIZE

SEAT PORT DIAMETER

NPS

Inches

80, 100

3, 4

1.97

2.56

3.15

3.74

S31600
GP83071.416 GP83071.416 GP83072.416 GP83073.416 GP83074.416

METAL TO METAL AND METAL PTFE

S42000

S31600 with

Alloy 6 hard facing Alloy 6 Seat & Guide

GP83071.420

GP83071.46C

GP83071.46T

GP83071.420

GP83071.46C

GP83071.46T

GP83072.420

GP83072.46C

GP83072.46T

GP83073.420

GP83073.46C

GP83073.46T

GP83074.420

GP83074.46C

GP83074.46T

Key 7.3 Valve Plug for assembly 1261.04

VALVE SIZE

SEAT PORT DIAMETER

NPS

Inches

80, 100

3, 4

1.97

2.56

3.15

3.74

S31600
GP83289.316 GP83289.316 GP83905Y316 GP83506B316 GP84004D316

METAL TO METAL AND METAL-EKONOL

S42000

S31600 with

Alloy 6 hard facing Alloy 6 Seat & Guide

GP83289.320

GP83289.36C

GP83289.36T

GP83289.320

GP83289.36C

GP83289.36T

GP83905Y320 GP83905Y36C

GP83905Y36T

GP83506B320 GP83506B36C

GP83506B36T

GP84004D320 GP84004D36C

GP84004D36T

1261-R and 1261-E Valves
November 2012

Instruction Manual
D103528X012

Key 8 and 9 Valve Plug Stem and Pin Stem

VALVE SIZE

SEAT PORT DIAMETER

mm 15, 20, 25
40, 50 50
80, 100

NPS 1/2, 3/4, 1
1-1/2, 2 2
3, 4

mm 4, 6, 10 15,
20, 30 10, 15, 20 30,
40 50 20, 30 40
50 65 80 95

Inches
0.16 to 1.18
0.39 to 1.57
1.97 0.79 to 1.57 1.97 2.56 3.15
3.74

PIN All Valves
A2.70 GD017487447
GD017487447 GD017487447
GD017487447

PLUG STEM

1261.00 Valve

Bonnet 00

Bonnet 02

S31600

GP16748.416 GP16752.416

GP16749.416 GP16749.416

GP16751.416 GP16751.416

GP16749.416 GP16751.416

PLUG STEM

1261.01 and 1261.04 Valve

Bonnet 00

Bonnet 02

S31600

---

---
GP40.224516 ---
GP40.224516

---
GP40.224616 ---
GP40.224616

Key 21 Balanced Plug Seal Ring

VALVE SIZE

SEAT PORT DIAMETER

NPS

80, 100

3, 4

Inches 1.97 1.97 2.56 3.15 3.74

KEILPAC

Ethylen-Propy. O-ring

Flouorocarb. O-ring

PTFE+E540-80 PTFE+V747-75

GS0870960EP GS0870986VI

GS0871052EP GS0871079VI

GS0871150EP GS0871176VI

GS0871184EP GS0871206VI

Seal Ring
EKONOL GD8800711EK GD8800711EK GD8800055EK GD8899275EK GD8800059EK

MSE
Back-up Ring
S31600 GP85544.416 GP85544.416 GP85069.416 GP85083.416 GP87132.416

Retaining Ring
S30200 10A4220X012 10A4220X012 10A4210X012 10A4219X012 10A5350X012

Key 4, 22, 34 and 13 Gaskets and Packing

VALVE SIZE

GASKET KITS

NPS

Graphite

"V" PTFE

15, 20, 25 40, 50 80, 100

1/2, 3/4, 1 1-1/2, 2 3, 4

GS8700011GR GS8700012GR GS8700048GR

GS8700010PT GS8700010PT GS8700010PT

Braided PTFE
GS8700004PT GS8700004PT GS8700004PT

PACKING KITS
Ribbon/Filament Graphite
GS8700002GR
GS8700002GR
GS8700002GR

ENVIRO-SEAL PTFE+Graphite GS8000072PT
GS8000072PT
GS8000072PT

ENVIRO-SEAL Graphite
GS8000073GR
GS8000073GR
GS8000073GR

Instruction Manual
D103528X012
Figure 4. Fisher 1261.00 Valve with Standard Bonnet

1261-R and 1261-E Valves
November 2012

Figure 5. Fisher 1261.01 Valve with Standard Bonnet (Balanced Plug).

1261-R and 1261-E Valves
November 2012
Figure 6. Standard Bonnet NPS 1-1/2 to 4

Instruction Manual
D103528X012
Figure 8. Extension Bonnet NPS 1/2 to 4

Figure 7. Valve with Soft Seat (PTFE and other materials)

Figure 9. Valve with Soft Seat and Reduced Port

Instruction Manual
D103528X012
Figure 10. Cage 1261.00 STANDARD

1261-R and 1261-E Valves
November 2012
Figure 12. Cage 1261.10 MULTIHOLE

FLOW DIRECTION
Figure 11. Cage 1261.90 WHISPER III A1-C3

FLOW DIRECTION
Figure 13. Cage 1261.90 WHISPER III D3

FLOW DIRECTION

FLOW DIRECTION 17

1261-R and 1261-E Valves
November 2012
Figure 14. Cage 1261.01 with Balanced Plug KEILPAC NPS 2 - NPS 4

Instruction Manual
D103528X012
Figure 16. Cage 1261.04 with Balanced Plug MSE NPS 2 - NPS 4

DETAIL A

DETAIL B

FLOW UP

FLOW DOWN

Figure 15. Cage 1261.11 MULTIHOLE with Balanced Plug KEILPAC

FLOW UP

FLOW DOWN

Figure 17. Cage 1261.51 CAVITROL III 1 Step with Balanced Plug KEILPAC

FLOW DIRECTION 18

FLOW DIRECTION

Instruction Manual
D103528X012
Figure 18. Fisher 1261 - R Dimensions

1261-R and 1261-E Valves
November 2012
Figure 19. Fisher 1261 - E Dimensions

Table 8. Dimensions (mm)

Nominal Diameter ( mm )

100

Nominal Pipe Size (NPS)

1/2

3/4

1-1/4

1-1/2

2-1/2

EN 558-1 PN 10-40

130

150

160

180

200

230

290

310

350

ISA-75.03

ASME CL150 RF

184

---

222

254

---

298

352

ISA-75.03

ASME CL300 RF

190

194

197

---

235

267

---

318

368

Bonnet 00

175

195

Bonnet 02

265

290

310

Table 9. Dimensions (mm)

ACTUATOR TYPE

R-2100

R-2101

Diameter C

215

485

480

R-2102 215 475 60

R-3100 315 475 80

R-4100 475 560 160

E-2100 215 570 355

E-2101 215 565 350

E-2102 215 560 345

E-3100 312 625 330

E-4100 475 565 350

1261-R and 1261-E Valves
November 2012

Instruction Manual
D103528X012

Table 10. Approximate Weights (Kg)

Nominal Diameter (mm)

100

Nominal Pipe Size (NPS)

1/2

3/4

1-1/4

1-1/2

2-1/2

PN 10-40

Assy Body ASME CL150 RF

---

ASME CL300 RF

---

Table 11. Approximate Weights (Kg)

ACTUATOR TYPE

R-2100

R-2101

R-2102

R-3100 25

R-4100 45

E-2100 15

E-2101 15

E-2102 15

E-3100 25

E-4100 45

Neither Emerson, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user. Fisher, Cavitrol, Whisper Trim, and ENVIRO-SEAL are marks owned by one of the companies in the Emerson Process Management business unit of Emerson Electric Co. Emerson Process Management, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.
Emerson Process Management Marshalltown, Iowa 50158 USA Sorocaba, 18087 Brazil Chatham, Kent ME4 4QZ UK Dubai, United Arab Emirates Singapore 128461 Singapore
www.Fisher.com
2E02004, 2012 Fisher Controls International LLC. All rights reserved.

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