Fisher RSS User manual

www.Fisher.com

Fisher™RSS Lined Globe Valve

Contents

Introduction 1.................................

Scope of Manual 1.............................

Description 1.................................

Educational Services 2.........................

Specifications 3...............................

Installation 3..................................

Maintenance 5.................................

Packing Maintenance 8.........................

Replacing Packing and Bushing Inserts 8..........

Trim Maintenance 11..........................

Disassembly 11............................

Assembly 12..............................

Parts Ordering 13...............................

Parts List 13...................................

Figure 1. Fisher RSS Valve with 667 Actuator

and FIELDVUE™ DVC6200 Digital Valve Controller

W9164‐2

Introduction

Scope of Manual

This instruction manual includes installation, maintenance, and parts information for NPS 1 through NPS 4 Fisher RSS

lined globe valves. Refer to separate manuals for instructions covering the actuator, positioner, and accessories.

Description

The RSS lined globe‐style valve (figure 1) has pure‐modified PTFE trim parts, push‐down‐to‐ close action, and positive

shutoff. This valve is intended for applications involving severely corrosive and toxic flowing media, and is well‐suited

for pure media applications, as well. The RSS valve body provides an economical alternative to alloy valve bodies in a

wide variety of applications.

Do not install, operate, or maintain an RSS valve 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 sales office or Local Business Partner before

proceeding.

Instruction Manual

D101299X012

RSS Valve

July 2017

Instruction Manual

D101299X012

RSS Valve

July 2017

Table 1. Specifications

Valve Sizes

NPS J1, J1‐1/2, J2, J3, and J4

Face‐To‐Face and Flange Compatibility

VALVE SIZE,

NPS

DUCTILE IRON

Raised‐Face Flange

CL150 CL300

Face‐To‐Face

ASME(1) EN(2) ASME(1) EN(2)

1‐1/2

‐ ‐ ‐

1. For ANSI/ISA face‐to‐face dimensions, see figure 9.

2. For EN face‐to‐face dimensions, see figure 9.

Maximum Inlet Pressures and Temperatures(1)

See table 2

Downstream/Outlet Pressure Ratings(1)

See figures 3 and 4

Shutoff Classification

Class VI per ANSI/FCI 70‐2 and IEC 60534‐4

Application Limits

Liquid Service: For cavitating applications, contact

your Emerson sales office or Local Business Partner

Gas Service: Velocity 0.33 MACH

Temperature Capabilities

Positive Pressure Service: -29 to 180_C

(-20 to 360_F)

Vacuum Service: -29 to 180_C (-20 to 360_F)

Standard Flow Characteristic/Valve Plug Style

Equal percentage

Flow Direction

Up through the seat ring (see figure 7)

Packing Arrangement

Braided PTFE rings

Dimensions and Weights

See figure 9

1. The pressure or temperature limits in this manual, and any applicable standard limitations should not be exceeded.

Table 2. Maximum Allowable Inlet Pressures and Temperatures(1)

TEMPERATURE, _CPRESSURE, BAR TEMPERATURE, _FPRESSURE, PSIG

Ductile Iron Ductile Iron

-29 to 38

149

180

19.7

17.9

15.9

14.8

-20 to 100

200

300

360

285

260

230

215

1. Includes valves with CL300 flanges.

Educational Services

For information on available courses for Fisher RSS valves, as well as a variety of other products, contact:

Emerson Automation Solutions

Educational Services - Registration

Phone: 1-641-754-3771 or 1-800-338-8158

E-mail: [email protected]

emerson.com/fishervalvetraining

Instruction Manual

D101299X012

RSS Valve

July 2017

Specifications

Specifications for the RSS valve are shown in table 1. If the valve is shipped with the actuator, some of the valve

specifications are on the valve nameplate, which is attached to the actuator. If the valve is shipped without the

actuator, the valve nameplate is wired to the valve.

Installation

WARNING

Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal

injury.

Personal injury or equipment damage caused by sudden release of pressure can result if the valve is installed where service

conditions could exceed the limits given on the nameplate or in table 1 or 2, or figure 3 or 4. To avoid such injury or

damage, use pressure‐limiting or pressure‐relieving devices to prevent service conditions from exceeding these limits.

Check with your process or safety engineer for any other hazards that may be present from exposure to 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 are selected to meet particular pressure, temperature,

pressure drop, and controlled fluid conditions. Since some valve 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 sales office or Local Business Partner.

CAUTION

Before installing the valve, inspect it to be certain that the valve cavity is free of foreign material. Use extra care in handling

to avoid damage to the exposed lining on the flanges. Clean out all pipelines to remove scale, welding slag, and any other

foreign materials that could cause erosion of the valve body lining.

Use accepted piping practices when installing the valve in the pipeline. To minimize valve damage caused by expansion of

PTFE lined pipe, use a line flange gasket (figure 2). This gasket evenly distributes the piping loads across the valve flange

face and minimizes the potential for cutting or indenting the lined face on the valve flange.

Instruction Manual

D101299X012

RSS Valve

July 2017

1. The control valve assembly should be installed in a horizontal pipeline with the valve stem in a vertical position.

Before installing in any other orientation, consult your Emerson sales office or Local Business Partner.

Flow through the valve must be in the direction indicated by the arrow cast on the valve (figure 7).

2. With a leak‐off bonnet construction, remove the pipe plug (key 20, not shown) and install the leak‐off piping into

the tapping in the bonnet (key 2, figure 10).

3. If continuous operation is required during inspection or maintenance, install a three‐way bypass around the control

valve assembly.

4. For a valve used with a fail‐closed actuator, remove the shim (key 24, not shown) from between the bonnet and the

travel stop. Discard the shim.

5. If the actuator and valve are shipped separately, refer to the appropriate actuator instruction manual for the

actuator mounting procedure.

Note

Bench sets for Fisher 657 and 667 actuators must be adjusted after installation on the RSS valve. The heavy duty bellows on the

RSS valve has a significant spring rate that must be included in the bench set for proper operation.

Figure 2. Typical Line Flange Gasket (Key 17)

PTFE

COMPOSITION

STAINLESS STEEL

SECTION A-A

10B3224-C

A5039

Instruction Manual

D101299X012

RSS Valve

July 2017

Maintenance

Valve parts are subject to normal wear and must be inspected and replaced as necessary. Inspection and maintenance

frequency depends on the severity of service conditions. This section includes instructions for packing and trim

replacement. All these maintenance operations may be performed with the valve in the line.

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 Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal

injury.

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 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.

D Use lock‐out procedures to be sure that the above measures stay in effect while you work on the equipment.

D The valve packing box 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, or when

loosening the packing box pipe plug.

D Check with your process or safety engineer for any other hazards that may be present from exposure to process media.

Note

Whenever a line flange gasket (figure 2) seal is disturbed by removing the valve from the line, install a new gasket on reassembly.

This is necessary to ensure a good gasket seal.

Instruction Manual

D101299X012

RSS Valve

July 2017

Figure 3. Downstream/Outlet Pressure Ratings (Positive Pressure Service)

HEAVY‐DUTY BELLOWS WITH METAL SUPPORT RINGS

NOTE: THE LINER DOES NOT LIMIT THE DOWNSTREAM PRESSURE RATING IN POSITIVE PRESSURE SERVICES.

E0981 68 122 212 302 360_F

180_C

1501005020 16

gauge pressure (bar)

232

203

188

174

159

145

130

116

101

72.5

43.5

gauge pressure (psi)

14.5

217

−29

−20

STANDARD PTFE BELLOWS

Figure 4. Downstream/Outlet Pressure Ratings (Vacuum Service)

E0980

68 122 212 302 360_F

THE PFA LINER CANNOT

BE USED IN THIS AREA

vacuum (bar)

180_C

1501005020 1

0.5

0.3

0.2

0.1

0.05

0.03

0.02

0.01

0.005

0.003

0.002

0.001

vacuum (psia)

14.5

7.25

4.35

2.9

1.45

0.72

0.43

0.29

0.14

0.07

0.04

0.03

0.015

PFA LINING

Instruction Manual

D101299X012

RSS Valve

July 2017

Figure 5. Bonnet, Travel Stop, and Seat Ring Installation Detail

VALVE

STEM

(KEY 5)

LOCKNUT

(KEY 10)

YOKE

LOCKNUT

(KEY 14)

BONNET

LOCATING

DIAMETER

TRAVEL

STOP

(KEY 15)

BONNET

(KEY 2)

0.6 mm

(O.020 INCH) GAP

EQUAL AT ALL BOLTING

LOCATIONS

BELLOWS

(KEY 6)

VALVE

PLUG

(KEY 3)

SEAT RING

CONTACT SURFACE

SEAT RING

SEALING LEDGE

29B2880-B

E1021

40B4191-E

Instruction Manual

D101299X012

RSS Valve

July 2017

Packing Maintenance

Key numbers are shown in figure 10.

The packing consists of braided packing rings (key 13). The packing box is only a safety measure in case of a leak

through the bellows (key 6). Therefore, the packing follower (key 11) is tightened to 1.13 NSm (10 lbfSin) of torque

and then loosened one half turn. To detect a leak through the bellows (key 6), the bonnet (key 2) can be provided with

a connection for leak‐off piping.

Replacing Packing and Bushing Inserts

Key numbers are shown in figure 10.

1. Isolate the control valve from the line pressure. Release pressure from both sides of the valve and drain the process

media from both sides of the valve.

2. Exhaust all actuator pressure, and disconnect the operating lines from the actuator and any leak‐off piping from the

bonnet (key 2). Disconnect the actuator stem connector, and then remove the actuator from the valve by

unscrewing the yoke locknut (key 14).

3. Remove any travel indicator parts, the locknut (key 10), and the travel stop (key 16) from the valve stem (key 5)

threads.

CAUTION

Follow the procedures as described in the next steps to prevent damage to the bonnet sealing surface and to prevent

packing box leakage.

4. Remove the packing follower (key 11). Unscrew the cap screws (key 7) and hex nuts (key 8) that secure the bonnet

(key 2) to the valve (key 1). Then, carefully lift the bonnet off and set it on a protective surface to prevent damage to

the bonnet sealing surface. If the valve stem, bellows, and valve plug (keys 5, 6, and 3) come out with the bonnet,

remove these parts from the bonnet.

5. Remove bushing inserts, packing rings, and packing box ring (keys 13, 12, 28, and 29).

6. Clean the packing box, packing box ring, and packing follower.

7. Inspect the valve stem and packing box surfaces for any sharp edges that might cut the packing. Scratches or burrs

could damage new packing or cause packing box leakage. If the surface condition cannot be improved by light

sanding, replace the damaged parts.

8. Install bushing inserts (keys 28 and 29).

9. Install the bonnet (key 2) over the valve stem (key 5). Slide the bonnet down until it properly engages the bonnet

locating diameter (figure 5) of the valve.

Note

In order to ensure accurate positioning of the valve plug (key 3) and seat ring (key 4), clearance between the valve and bonnet at

all bolting locations (figure 5) must be equal and approximately 2.0 mm (0.080 inches) for NPS 1 through 4 valves. Be sure to

measure the clearance in the next step.

10. Tighten the cap screws and hex nuts (keys 7 and 8) in a crisscross pattern to a maximum torque value of 50 NSm

(37 lbfSft). To ensure accurate positioning of the valve plug (key 3) into the seat ring (key 4), check the gap between

Instruction Manual

D101299X012

RSS Valve

July 2017

the valve and bonnet with a feeler gauge (figure 5). At all bolting locations, the gap must be equal and

approximately 2.0 mm (0.080 inches) for NPS 1 through 4 valves. In order to keep the gap equal, the individual

bolts may have to be tightened to different torque levels.

Note

Due to the cold flowing tendency of the valve liner, this procedure should be repeated upon installation and after the first thermal

cycle of the valve.

11. Install the packing rings, packing box ring, and packing follower (keys 13, 12, and 11) over the valve stem. Tighten

the packing follower to 1.13 NSm (10 lbfSin) of torque to ensure the packing rings are seated. After the packing

rings are seated, loosen the packing follower one half turn.

12. Manually press the valve stem (key 5) into the valve until the valve plug contacts the seat ring.

CAUTION

Improper adjustment in step 13 might cause damage to trim parts. Perform this step carefully.

13. Thread the travel stop (key 16) onto the valve stem until there is a 0.5 mm (0.020 inch) gap between the bottom

surface of the travel stop legs and the top of the bonnet (figure 5).

14. Thread the locknut (key 10) onto the stem and tighten it against the travel stop.

15. Mount the actuator and secure it with the yoke locknut (key 14). Connect the actuator stem and valve stem

according to the procedure in the appropriate actuator instruction manual.

Figure 6. Typical Locking Rope Installation

WITH LOCKING ROPE PARTIALLY REMOVED WITH LOCKING ROPE INSTALLED

W9165‐1 W9166‐1

Instruction Manual

D101299X012

RSS Valve

July 2017

Figure 7. Fisher RSS Valve Body Shown with Tool Used to Remove or Install Seat Ring

W4473

SEAT

RING

SEAT

RING

TOOL

Table 3. Seat Ring Tool Dimensions

VALVE

SIZE,

NPS

DIMENSIONS (MILLIMETERS)

AOBOCOD E F G

136.9

37.2

47.2

47.5

54.8

55.6 6.4 4.8 7.9

7.6 190

1‐1/2 54.0

54.2

63.9

64.1

71.8

72.6 7.1 5.6 7.9

7.6 222

265.1

65.3

76.2

76.5

83.7

84.5 7.1 5.6 7.9

7.6 222

391.3

91.5

103.7

104.2

111.9

112.7 7.1 5.6 7.9

7.6 300

4105.9

106.2

118.2

118.5

126.2

127.0 7.1 5.6 7.9

7.6 300

VALVE

SIZE,

NPS

DIMENSIONS (INCHES)

AOBOCOD E F G

11.45

1.46

1.86

1.87

2.16

2.19 1/4 3/16 0.31

0.30 7‐1/2

1‐1/2 2.13

2.14

2.52

2.53

2.83

2.86 9/32 7/32 0.31

0.30 8‐3/4

22.56

2.57

3.00

3.01

3.30

3.33 9/32 7/32 0.31

0.30 8‐3/4

33.59

3.60

4.09

4.10

4.41

4.44 9/32 7/32 0.31

0.30

11‐7/

44.17

4.18

4.66

4.67

4.97

5.00 9/32 7/32 0.31

0.30

11‐7/

Figure 8. Seat Ring Tool

A3520-1

(INCH)

139.7

(5‐1/2)

7.9

(5/16)

9.5

(3/8)

3.9

(5/32)

15.8

(5/8)

30_

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