Emerson Fisher 6010 Manuale utente

www.Fisher.com

Fisherr6010 -- 6015 and Whisper Disk Diffusers

Contents

Introduction 2.................................

Scope of Manual 2.............................

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

Principle of Operation 3.........................

Piping Considerations 3........................

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

Maintenance 4.................................

Servicing 4...................................

Troubleshooting 4.............................

Parts Ordering 5................................

Figure 1. Typical Fisher Inline and Vent Diffusers

W1155-2

W1162-2 W4888

6011

6010 WHISPER DISK

W7353

X0002

6014 WhisperFlo™ VENT DIFFUSER

6012

X0347

Instruction Manual

D103195X012

Inline and Vent Diffusers

December 2011

Instruction Manual

D103195X012

Inline and Vent Diffusers

December 2011

Table 1. Specifications (for Standard Designs)

Available Configurations

6010: Inline diffuser (with integral outlet head)

6011: Inline diffuser (pipe-style)

Whisper Disk: Inline diffuser (flat plate)

6012: Drilled-hole Vent diffuser

6013: Drilled-hole Vent diffuser (with outer shell)

6014: WhisperFlo disc style

6015: WhisperFlo disc style (with outer shell)

Sizes

6010: NPS 1 x 3 to NPS 26 x 48 (inlet x outlet)

6011: NPS 2 to NPS 30

Whisper Disk: NPS 2 to NPS 24

6012: NPS 2 to NPS 26

6013: NPS 2 to NPS 26 (outer shell NPS 4 to 36)

6014: Sizes are available to meet your application

(see bulletin 80.3:6014)

6015: With outer shell. Sizes are available to meet

your application (see bulletin 80.3:6014)

End Connections

6010: Any combination of flanged (raised-face,

ring-type joint, and flat-face) or welded end

(buttweld or socket weld)

6011: Wafer flanged

Whisper Disk: Raised-face or ring-type joint flanged

6012 and 6013: Raised-face flanged, ring-type joint

flanged, or buttweld end

6014 and 6015: Raised-face flanged, ring-type joint

flanged, or buttweld end

Note

Inline and vent diffusers are not hydrostatically tested.

Introduction

Scope of Manual

This instruction manual includes operation, installation, and maintenance information for the following diffusers:

D6010, 6011, and Whisper Disk Inline Diffusers. See figure 1

D6012 and 6013 drilled-hole vent diffusers. See figures 2 and 3

D6014 and 6015 WhisperFlo disc style vent diffusers. See figures 4 and 5

Do not install, operate, or maintain these diffusers 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.

Description

Inline and vent diffusers are installed to provide backpressure for control valves, which greatly reduces control valve

noise generated by steam, gas, or vapor flow applications. Inline diffusers are placed downstream of the valve and are

either placed in or between pipe. Vent diffusers are placed downstream of the valve and vent process to the

atmosphere. Fisher inline and vent diffusers are used in gas, vapor, and steam applications.

Instruction Manual

D103195X012

Inline and Vent Diffusers

December 2011

Principle of Operation

Inline and vent diffusers are custom designed to match a wide range of valve outlet and/or pipeline size. Furthermore

these diffusers are selected to match the application specific conditions including temperature, pressure, and flow

capacity. The flexibility of the diffuser types and placement provide a range of installation possibilities. The diffuser is

not required to be installed adjacent to the control valve.

The 6010 is an inline diffuser that fits between two different sizes of pipe to meet both downstream and upstream pipe

sizes with an integral outlet head. The 6011 is a pipe-style inline diffuser that extends into existing pipe using a wafer

flange connection. The Whisper Disk is a flat plate-style inline diffuser that is available with a raised-face flanged

connection. The 6012, 6013, 6014, and 6015 are vent diffusers that are designed to reduce noise during process

venting applications.

Piping Considerations

Upstream piping should be the same nominal diameter as the diffuser inlet connection and vice versa.

The drilled hole pattern of the Whisper Disk inline diffuser must be within the inside diameter of the mating flange

schedule.

Reducers or elbows are not recommended downstream unless they are at least four to five downstream pipe

diameters downstream of the diffuser outlet.

Installation

Before installation, all piping to the diffuser must be blown clean, so that no particles, such as welding beads, dirt or

other foreign matter, are left in the pipeline. Keep foreign matter away from the line openings while preparing the

diffuser for installation.

CAUTION

Cleanliness of the upstream piping is critical. Debris in the piping can damage the diffuser and severely restrict flow, causing

overpressure.

Inspect the inside of the diffuser and clean if necessary.

Arrange a lifting sling around the diffuser to safely place it into the mounting position.

Note

To avoid flow interaction and reduce noise in 6012, 6013, 6014, and 6015 vent diffuser applications, do not install diffusers in close

proximity to support structures and ensure that adjacent diffusers are installed at different heights.

Instruction Manual

D103195X012

Inline and Vent Diffusers

December 2011

6013 and 6015 diffusers with shell are provided with mounting brackets for wind and side loads. These mounting

brackets also provide support, so the entire weight of the diffuser is not on the inlet connection. The end-user shall

provide the necessary support structure to interface with the provided mounting brackets on the diffuser.

Flanged Connections–For high temperature applications, grease the flange connection bolts with a high temperature

thread lubricant. Install flange gaskets and connection bolts per accepted practices and tighten securely.

Re-tighten bolts after the diffuser has been pressurized. Do not expose the diffuser to undue stresses by installing it in

bent pipes or bent flanges.

Welded Connections–Welding procedures should be in accordance with the applicable codes and the base materials.

For preheat, welding electrodes, and post-weld heat treatment, refer to the standard applicable codes and practices.

Materials are specified on the diffuser specification sheet that is delivered together with the diffuser.

Maintenance

Servicing

The diffuser has no serviceable parts. However, during routine maintenance intervals it is important to inspect the

diffuser for damaged or cracked welds (exclusive of the Whisper Disk diffuser). Your local Emerson Process

Management Instrument and Valve Services office can help determine the correct course of action if damage is

present. The diffuser is normally welded or bolted in line and not removed unless it requires cleaning or replacement

due to damage or wear.

In the event the diffuser is not performing as expected, a bore scope can be used to examine the flow passages for

blockages without the need for disassembly and removal. If blockages are present, cleaning can be performed by

removing the unit by either cutting of the welds or removal of bolting and using a pressurized water stream to clear

any blockages. If blockages are still present after cleaning, the unit will need to be replaced.

Troubleshooting

Table 2 is intended as a basic first line troubleshooting guide. Contact your Emerson Process Management sales office

for assistance if you are unable to resolve your field operation problem.

Table 2. Troubleshooting Guide

Problem Possible Solution

Anticipated backpressure is not reached.

Review valve conditions and opening percentage

Check for process flow changes and/or Inspect unit.

Inspect flow passages in diffuser for blockage, clean if necessary

System noise and vibration have suddenly increased above previous levels. Review operating history to check for process flow changes. Inspect unit.

Instruction Manual

D103195X012

Inline and Vent Diffusers

December 2011

Parts Ordering

There are no serviceable spare parts for this unit.

Note

Each diffuser is assigned a serial number that can be found on the unit. Refer to the serial number when contacting your Emerson

Process Management sales office for technical assistance.

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

D103195X012

Inline and Vent Diffusers

December 2011

Figure 2. Fisher 6012 Vent Diffuser

W8682-1

Figure 3. Fisher 6013 Vent Diffuser

W8683-1

Instruction Manual

D103195X012

Inline and Vent Diffusers

December 2011

Figure 4. Fisher 6014 Vent Diffuser

W8798-1

Figure 5. Fisher 6015 Vent Diffuser

W8799-1

Instruction Manual

D103195X012

Inline and Vent Diffusers

December 2011

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

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they arenot

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.

Fisher and WhisperFlo are marks owned by one of the companies in the Emerson Process Management business division 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.

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.

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