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
2
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
3
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
4
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
5
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
6
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
7
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
8
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.
E2004, 2011 Fisher Controls International LLC. All rights reserved
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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