Emerson Fisher A11 Manuale utente

www.Fisher.com

Fisher™A11 High-Performance Butterfly Valve

CL900-2500

Contents

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

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

Description 2.................................

Specifications 2...............................

Installation 4..................................

Adjusting the Travel Stops 5....................

Preparing for Installation 5......................

Valve Orientation 6............................

Installing the Valve 7...........................

Packing Adjustment and Shaft Bonding 9.........

Maintenance 10................................

Removing the Valve 11.........................

Packing Maintenance 11........................

Seal Maintenance 14...........................

Soft Seal Installation 15.....................

Metal and Phoenix III Seal Installation 16.......

Cryogenic Seal Installation 17................

Valve Shaft/Disk Pin Unit Maintenance 18.........

Bearing Maintenance 19........................

Parts Ordering 20...............................

Parts List 20...................................

Figure 1. Fisher A11 Valve

W9570−1

Introduction

Scope of Manual

This instruction manual includes installation, maintenance, and parts information for the Fisher A11 High-Performance

Butterfly Valves (figure 1) in CL900 and 1500. For CL2500 valves, contact your Emerson sales office or Local Business

Partner.

For information about the actuator and accessories, please refer to the separate instruction manuals for these items.

Do not install, operate, or maintain an A11 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 of 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

D104223X012

A11 Valve

August 2017

Instruction Manual

D104223X012

A11 Valve

August 2017

Description

A11 High-Performance Butterfly Valves are available in a lugged body design, with a variety of seal, valve body, and

internal components. These valves feature a dynamic sealing design that is used in a variety of demanding

applications.

Specifications

Specifications are listed in table 1 and the specifications for a given valve are stamped on a nameplate attached to the

valve.

Educational Services

For information on available courses for the A11 High Pressure valve, 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

D104223X012

A11 Valve

August 2017

Table 1. Specifications

Available Configurations

Valve Sizes

Class 900 and 1500(1) (2): Size J3, J4, J6, J8,

J10, J12, J14, J16, J18, J20 and J24‐inch

Valve Body: Lugged style in Class J900 and J1500

Consult your Emerson sales office or Local Business

Partner for other sizes and pressure classes

Maximum Inlet Pressure

Consistent with applicable ASME class

pressure/temperature ratings per ASME B16.34

unless such ratings are limited by material

temperature capabilities.

Construction Materials

Refer to Bulletin 56.1:A11 CL900-2500

High-Performance Butterfly Valve (D104222X012)

Disk Rotation

Clockwise (CW) to close

Shutoff Classification per ANSI/FCI 70-2 and IEC

60534-4

Class VI Soft Seal: Bubble-tight shutoff (exceeds Class

VI)

High Pressure Seal: Standard Class V

Cryogenic Seal (Reverse direction only)

CTFE: 10% of Class IV

CTFE with Aluminum Backup Ring: Class VI

Consult Emerson sales office for other shutoff

classifications

Valve Body Classification

Valve bodies are designed for installation between

standard pipe flanges: for 3 inch through 24‐inch

sizes (ASME B16.5)

Approximate Weights

See table 2

Actuator Types Available

JLocking‐lever manual actuators, Jworm‐gear

manual actuators, Jspring‐return pneumatic

actuators, Jdouble‐acting pneumatic actuators, and

Jelectric actuators

ENVIRO‐SEAL™Packing

This optional JPTFE or Jgraphite packing system

provides improved sealing, guiding, and transmission

of loading force to control liquid and gas emissions

(see figure 9). See Bulletin 59.3:041 ENVIRO‐SEAL

Packing Systems for Rotary Valves (D101638X012)

for more information. Contact your Emerson sales

office or Local Business Partner for larger sizes; they

may require a special valve body.

NOTE:

1. Sizes NPS 3 and 4 are CL900 bodies with CL600 internals.

2. Sizes NPS 3 and 4 are CL1500 bodies with CL600 internals. Sizes NPS 6 and 8 are CL1500 bodies with CL900 internals.

Instruction Manual

D104223X012

A11 Valve

August 2017

Table 2. Approximate Weight for Size 3 through

24‐Inch Valves

VALVE

SIZE

CLASS

900 1500

---

120

210

450

444

513

703

991

1626

---

311

663

810

1152

1613

2250

---

lbs

---

130

264

463

993

976

1132

1550

2185

3590

---

685

1462

1785

2540

3555

4960

---

Installation

WARNING

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

injury.

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.

Note

When installing a valve after it has been in long‐term storage, cycle the valve at least ten times to re‐energize the dynamic seal.

Please contact your Emerson sales office or Local Business Partner if you have any questions about preparing a valve for storage or

if you are planning to put into service a valve that has been stored for some time.

Instruction Manual

D104223X012

A11 Valve

August 2017

Adjusting the Travel Stops

CAUTION

When using manual or power actuators, adjust the actuator travel stops so the disk stop in the valve body does not absorb

the output of the actuator.

For actuators without travel stops, the actuator must be properly mounted to prevent it from driving the valve disk against

the valve disk travel stop.

Failure to limit actuator travel as described in this section can result in damage to the valve shafts or other valve parts

Note

An ”S” is visible on both the valve shaft and valve body. When the valve disk is closed, the ”S” on the shaft aligns with the ”S” on

the valve body.

1. Locate the actuator travel stop that establishes the closed position of the valve disk. When adjusting the travel stop

make sure that the disk is from 0 to 0.76 mm (0 to 0.030 inch ) away from the internal stop in the valve body. This

adjustment is necessary to be certain that the actuator output torque is fully absorbed by the actuator travel stop

rather than the stop in the valve body.

For actuators without travel stops, the actuator must be properly mounted to prevent it from driving the valve disk

against the valve disk travel stop.

2. To mount an actuator without travel stops, first, if necessary, remove the actuator from the valve. Then, position

the valve disk from 0 to 0.76 mm (0 to 0.030 inch) away from the internal stop in the valve body.

3. Now, travel the actuator to the maximum position. Keep the actuator in the maximum travel position. Return the

actuator to the valve, taking care not to disturb the position of the valve disk.

4. Mount the actuator on the valve using proper bolts with locking washers to achieve a secure fit.

5. Before installing the valve/actuator assembly in the process line, cycle the valve several times to be sure the valve

disk returns to the proper position.

Preparing for Installation

WARNING

If the A11 valve is equipped with a fail‐open actuator, remove the actuator before installing the valve/actuator assembly or

cycle the valve into the fully closed position. Then, to avoid possible personal injury or property damage, take appropriate

steps to ensure that the actuator does not cause the valve to open during installation.

1. If the valve and actuator have been purchased separately or if the actuator has been removed for storage, travel

stop adjustment, or maintenance, mount the actuator before inserting the valve/actuator assembly into the line.

Refer to the actuator instruction manual for mounting and adjustment procedures.

CAUTION

To avoid product damage, inspect the valve before installation for any damage or any foreign material that may have

collected in the valve body. Also remove any pipe scale, welding slag, or other foreign material from the pipeline.

Instruction Manual

D104223X012

A11 Valve

August 2017

2. Remove the protective end covers from the valve and inspect the valve body to be certain that it is free of foreign

material. Also, be certain that adjacent pipelines are free of any foreign material, such as pipe scale or welding slag

that could damage the valve seating surfaces.

WARNING

The A11 valve is designed for use with the appropriate piping schedule for the ASME class. However, before putting the

valve into operation, measure carefully to ensure disk rotation without interference from piping or flanges. Be certain to

center the valve accurately to prevent interference of the disk with the flanges.

The edges of a rotating disk have a shearing effect that may result in personal injury. To help prevent such injuries, stay

clear of the disk edges when rotating the disk.

Damage to the disk will occur if any pipe flanges or piping connected to the valve interfere with the disk rotation path.

Compare the disk chordal swing diameter from the dimensional tables in Bulletin 51.6:A11 CL900-2500 A11 High

Performance Butterfly Valve (D104222X012) to the ID of the pipe to be certain the disk rotates without interference before

putting the valve into operation. Consult with your Emerson sales office or Local Business Partner for any constructions not

listed in the bulletin.

3. Select the appropriate gaskets for the application. flexible graphite, spiral wound, or other gasket types, made to

ASME B16.5 group or user's standard, can be used on A11 valves depending on the service conditions of the

application. Note: spiral wound gaskets, when properly centered, will cover more than 60 percent of the gasket

area at the retaining ring screws.

For metal‐seated and cryogenic valve gasket recommendations, please contact your Emerson sales office.

4. Refer to the appropriate table for the quantity and size of flange bolts required (table 3) and proceed with the

following instructions.

Valve Orientation

A11 valve bodies are designed for installation with the shaft in any orientation around the pipeline: horizontal, vertical,

or at an angle. However, when installing an A11 valve, please follow these recommendations.

Table 3. Cap Screw Data for Lugged Valves

CL900/600

Valve Size, NPS 4

Number of Cap Screws 16

Size‐Diameter Inch - Thread 1‐1/8 - 8

B‐Length of Cap Screw, Inch 3.38

CL900

Valve Size, NPS 6 8 10 12 14 16 18 20 24

Number of Cap Screws 24 24 32 40 40 40 40 40 40

Size‐Diameter Inch - Thread 1‐1/8- 8 1‐3/8 - 8 1‐3/8 - 8 1‐3/8 - 8 1‐1/2 - 8 1‐5/8 - 8 1‐7/8 - 8 2 - 8 2‐1/2 - 8

B‐Length of Cap Screw, Inch 3.63 4.25 4.63 5 5.32 5.75 6.38 6.75 8.5

CL1500/600

Valve Size, NPS 4

Number of Cap Screws 16

Size‐Diameter Inch - Thread 1‐1/4 - 8

B‐Length of Cap Screw, Inch 3.88

CL1500/900

Valve Size, NPS 4 8

Number of Cap Screws 24 24

Size‐Diameter Inch - Thread 1‐3/8 - 8 1‐5/8 - 8

B‐Length of Cap Screw, Inch 5.13 6

Instruction Manual

D104223X012

A11 Valve

August 2017

CL1500

Valve Size, NPS 10 12 14 16 18 20

Number of Cap Screws 24 32 32 32 32 32

Size‐Diameter Inch - Thread 1‐7/8 - 8 2 - 8 2‐1/4 - 8 2‐1/2 - 8 2‐3/4 - 8 3 - 8

B‐Length of Cap Screw, Inch 6.63 7.38 8 8.75 9.63 10.5

Figure 2. View of Stud Bolts

E0179 / IL AA

D In certain services (process fluids with high concentrations of entrained solids, abrasive slurries, or polymerizing

media), valve performance will be enhanced by installing the valve with the shaft horizontal to the pipeline.

D Valves supplied for unidirectional shutoff should be installed with the high pressure at the back (shaft side) of the

disk. A flow tag with an arrow is provided for proper installation.

The High Performance Butterfly Valve is designed to allow flow in either direction when in the open position. When in

the closed position, high pressure should be applied to a specific side of the disk to provide best performance and

optimal service life.

D Valves supplied for bidirectional shutoff, such as soft seal constuctions, under normal operating conditions can (at

different times) experience pressure in both directions; the highest of the two pressures should be exerted on the

preferred side of the disk. If the two pressures are equal, then the one lasting the longest period of time should be

applied to the preferred side. A flow tag with an arrow is provided for proper installation.

If you have questions about proper valve orientation in a specific application, contact your Emerson sales office or

Local Business Partner.

Installing the Valve

WARNING

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

injury.

To avoid personal injury or property damage resulting from the sudden release of pressure, do not install the valve

assembly where service conditions could exceed the limits given in this manual, the limits on the appropriate nameplates,

or the matching pipe flange rating. Use pressure‐relieving devices 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.

Instruction Manual

D104223X012

A11 Valve

August 2017

CAUTION

When ordered, the valve configuration and construction materials were selected to meet particular pressure, temperature,

pressure drop, and controlled fluid conditions. Responsibility for the safety of process media and compatibility of valve

materials with process media rests solely with the purchaser and end‐user.

Because 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.

Figure 3. Proper Installation Procedure

B2263/IL

VALVE IN CLOSED POSITION

DURING INSTALLATION (OR

REMOVAL) TO PREVENT

DAMANGE TO DISK SEALING

AREA. SHAFT HORIZONTAL:

FLANGE GASKETS:

BE SURE THESE ARE CENTERED

ALONG WITH THE VALVE

PIPE FLANGES:

OPENED ENOUGH TO ALLOW

THE VALVE AND GASKETS TO

SLIP INTO PLACE

BOTTOM FLANGE BOLTS:

FORMING A CRADLE FOR

VAVLE DURING INSTALLATION

FLANGE BOLTS TIGHTENED

EVENLY TO PREVENT GASKET

LEAKAGE

For Lugged Valves:

1. Position the valve between the flanges. Be sure to leave enough room for the flange gaskets; then install the lower

flange bolts.

2. Install the gaskets and align the valve and the gaskets.

3. Install the remaining bolts.

4. Tighten the flange bolts in an alternating criss‐cross fashion to a torque value of one‐fourth of the final bolting

torque. Repeat this procedure several times increasing the torque value each time by a fourth of the final desired

torque. When the final torque value has been applied, tighten each flange bolt again to allow for gasket

compression.

Instruction Manual

D104223X012

A11 Valve

August 2017

Packing Adjustment and Shaft Bonding

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. Check with your process or safety engineer for any

additional measures that must be taken to protect against process media.

1. For PTFE or graphite packing: Tighten standard packing follower nuts only enough to prevent shaft leakage.

Excessive tightening of packing will accelerate wear and could produce higher rotating friction loads on the valve

shaft. If necessary, refer to the Packing Maintenance section.

2. For ENVIRO‐SEAL Packing Systems: These packing systems will not require this initial re‐adjustment. Refer to the

separate ENVIRO‐SEAL Packing System for Rotary Valves Instruction Manual (D101643X012).

3. For hazardous atmosphere or oxygen service valves, read the following Warning, and provide the bonding strap

assembly mentioned below if the valve is used in an explosive atmosphere.

WARNING

The valve drive shaft is not necessarily grounded to the pipeline when installed. Personal injury or property damage could

result, if the process fluid or the atmosphere around the valve is flammable, from an explosion caused by a disk's charge of

static electricity from the valve components. If the valve is installed in a hazardous area, electrically bond the drive shaft to

the valve body.

Note

The packing is composed of all conductive packing rings (graphite ribbon packing) or partially conductive packing rings

(carbon‐filled PTFE female adaptor with PTFE V‐ring packing or graphite‐composition packing ring with PTFE/composition

packing) to electrically bond the shaft to the valve for hazardous area service. For oxygen service applications, and hazardous area

service where the standard packing doesn't provide sufficient shaft‐to‐valve body bonding, provide alternate shaft‐to‐valve body

bonding according to the following step.

4. Attach the bonding strap assembly (key 131, figure 4) to the shaft with the clamp (key 130, figure 4).

5. Connect the other end of the bonding strap assembly to the valve flange cap screws.

6. For more information, refer to the Packing Maintenance section below.

Instruction Manual

D104223X012

A11 Valve

August 2017

Figure 4. Optional Shaft‐to‐Body Bonding Strap Assembly

VALVE

BODY

ACTUATOR

VIEW A‐A

37A6528‐A

A3143‐2

Maintenance

Valve parts are subject to normal wear and must be inspected and replaced as necessary. The frequency of inspection

and replacement depends upon the severity of service conditions.

WARNING

Avoid personal injury from sudden release of process pressure. Before performing any maintenance operations:

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

on both sides of the valve. Drain the process media from both sides of the valve.

D Vent the power actuator loading pressure.

D Use lockout procedures to be sure 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.

CAUTION

When using an actuator, the actuator travel stop (or actuator, for actuators without adjustable stops) must be adjusted so

the disk stop in the valve does not absorb the output of the actuator. Failure to limit the actuator travel can result in

damage to the valve, shaft(s), or other valve components.

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