ASTM D4167-21

Standard Specification for Fiber-Reinforced Plastic Fans and Blowers

ABSTRACT
This specification covers the minimum requirements for construction of fiber-reinforced thermoset plastic fans (both centrifugal and axial) and blowers, and provides for a common basis for determining safe operating speeds. The fan housing shall be of laminate construction consisting of a resin-rich inner surface layer reinforced with a chemical-resistant glass-fiber or organic-fiber surface mat and an interior layer made of resin reinforced only with noncontinuous glass-fiber strands. Fan wheels shall be manufactured from a corrosion-resistant material as well, with visible defects limited only to the requirements specified. Further rendering the fan wheel and housing electrostatically conductive shall result in a spark-resistant fan. Tests for balance, fan aerodynamic rating, and safe operating speed shall be performed and shall conform to the requirements specified.
SCOPE
1.1 This specification covers centrifugal and axial fans and blowers with airstream components fabricated of fiber-reinforced thermoset plastics (FRP) for corrosion resistance. It is acceptable for internal structures to include encapsulated metal fastening devices, hubs, and shafts.  
1.2 Reinforcing materials other than fibrous glass are acceptable for use in the fabrication, provided the fans and blowers produced meet all the requirements of this specification.  
1.3 The term “fans” as used in this specification includes fans and blowers, both centrifugal and axial.  
1.4 The purpose of this specification is to provide purchasers, system designers, specifiers, and suppliers of FRP fans with minimum standards for fan construction and a common basis for determining safe operating speeds.  
1.5 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.  
Note 1: There is no known ISO equivalent to this standard.
Note 2: Appendix X2 contains a list of documents potentially of interest to designers of fan systems.  
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Aug-2021
• ICS: 23.120 - Ventilators. Fans. Air-conditioners
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.23 - Reinforced Thermosetting Resin Piping Systems and Chemical Equipment

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:D4167 −21
Standard Specification for
1
Fiber-Reinforced Plastic Fans and Blowers
This standard is issued under the fixed designation D4167; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This specification covers centrifugal and axial fans and
C582 Specification for Contact-Molded ReinforcedThermo-
blowers with airstream components fabricated of fiber-
setting Plastic (RTP) Laminates for Corrosion-Resistant
reinforced thermoset plastics (FRP) for corrosion resistance. It
Equipment
is acceptable for internal structures to include encapsulated
D883 Terminology Relating to Plastics
metal fastening devices, hubs, and shafts.
D2563 Practice for Classifying Visual Defects in Glass-
1.2 Reinforcing materials other than fibrous glass are ac-
Reinforced Plastic Laminate Parts
ceptable for use in the fabrication, provided the fans and
2.2 Other Standards:
blowers produced meet all the requirements of this specifica-
3
AMCA 99 Standards Handbook
tion.
AMCA Fan and Air System Applications Handbook
3
(AMCA 200, 201, 202, 203)
1.3 The term “fans” as used in this specification includes
AMCABulletin210 LaboratoryMethodsofTestingFansfor
fans and blowers, both centrifugal and axial.
3
Certified Aerodynamic Performance Rating
1.4 The purpose of this specification is to provide
AMCA 300 ReverberantRoomMethodforSoundTestingof
3
purchasers, system designers, specifiers, and suppliers of FRP
Fans
fans with minimum standards for fan construction and a
AMCA 301 Methods for Calculating Fan Sound Ratings
3
common basis for determining safe operating speeds.
from Laboratory Test Data
ACGIH Industrial Ventilation: A Manual of Recommended
1.5 The values stated in inch-pound units are to be regarded
4
Practice
as the standard. The values given in parentheses are provided
NFPA 91 Standard for Exhaust Systems for Air Conveying
for information only.
5
of Vapors, Gases, Mists, and Particulate Solids
NOTE 1—There is no known ISO equivalent to this standard.
NOTE 2—Appendix X2 contains a list of documents potentially of 3. Terminology
interest to designers of fan systems.
3.1 Definitions—The definitions of terms used in this speci-
1.6 This standard does not purport to address all of the
fication are the same as those found in Terminology D883.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 4. Construction of Fan Housings
priate safety, health, and environmental practices and deter-
4.1 Laminate Construction shall conform to Specification
mine the applicability of regulatory limitations prior to use.
C582. The same resin shall be used throughout a housing
1.7 This international standard was developed in accor-
unless the purchaser and supplier agree to use a different resin
dance with internationally recognized principles on standard-
for the inner surface and interior layer than for the structural
ization established in the Decision on Principles for the
layer.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
1 3
This specification is under the jurisdiction of ASTM Committee D20 on Available from Air Movement and Control Association International, 30 West
Plastics and is the direct responsibility of Subcommittee D20.23 on Reinforced University Dr., Arlington Heights, IL 60004, http://www.amca.org.
4
Thermosetting Resin Piping Systems and Chemical Equipment. Available from American Conference of Governmental Industrial Hygienists
Current edition approved Sept. 1, 2021. Published October 2021. Originally (ACGIH), 1330 Kemper Meadow Dr., Cincinnati, OH 45240, http://www.acgih.org.
5
approved in 1982. Last previous edition approved in 2015 as D4167 –15. DOI: Available from National Fire Protection Association (NFPA), 1 Batterymarch
10.1520/D4167-21. Park, Quincy, MA 02269, http://www.nfpa.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D4167−21
2 2
1
4.1.1 The inner surface expo
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This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D4167 − 15 D4167 − 21
Standard Specification for
1
Fiber-Reinforced Plastic Fans and Blowers
This standard is issued under the fixed designation D4167; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*Scope
1.1 This specification covers centrifugal and axial fans and blowers with airstream components fabricated of fiber-reinforced
thermoset plastics (FRP) for corrosion resistance. It is acceptable for internal structures to include encapsulated metal fastening
devices, hubs, and shafts.
1.2 Reinforcing materials other than fibrous glass are acceptable for use in the fabrication, provided the fans and blowers produced
meet all the requirements of this specification.
1.3 The term “fans” as used in this specification includes fans and blowers, both centrifugal and axial.
1.4 The purpose of this specification is to provide users,purchasers, system designers, specifiers, and manufacturerssuppliers of
FRP fans with minimum standards for fan construction and a common basis for determining safe operating speeds.
1.5 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for
information only.
NOTE 1—There is no known ISO equivalent to this standard.
NOTE 2—Appendix X2 contains a list of documents potentially of interest to designers of fan systems.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.7 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
C582 Specification for Contact-Molded Reinforced Thermosetting Plastic (RTP) Laminates for Corrosion-Resistant Equipment
D883 Terminology Relating to Plastics
1
This specification is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.23 on Reinforced Plastic
Thermosetting Resin Piping Systems and Chemical Equipment.
Current edition approved Dec. 1, 2015Sept. 1, 2021. Published January 2016October 2021. Originally approved in 1982. Last previous edition approved in 20072015 as
D4167 –97(2007). –15. DOI: 10.1520/D4167-15.10.1520/D4167-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D4167 − 21
D2563 Practice for Classifying Visual Defects in Glass-Reinforced Plastic Laminate Parts
2.2 Other Standards:
3
AMCA 99 Standards Handbook
3
AMCA Fan and Air System Applications Handbook (AMCA 200, 201, 202, 203)
3
AMCA Bulletin 210 Laboratory Methods of Testing Fans for Certified Aerodynamic Performance Rating
3
AMCA 300 Reverberant Room Method for Sound Testing of Fans
3
AMCA 301 Methods for Calculating Fan Sound Ratings from Laboratory Test Data
4
ACGIH Industrial Ventilation: A Manual of Recommended Practice
5
NFPA 91 Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Particulate Solids
3. Terminology
3.1 Definitions—The definitions of terms used in this specification are the same as those found in Terminology D883.
4. Construction of Fan Housings
4.1 Laminate Construction shall conform to Specification C582. The same resin shall be used throughout a housing unless the
userpurchaser and manufacturersupplier agree to use a different resin for the inner surface and interior layer than for the structural
layer.
4.1.1 The inner surface exposed to the chemical environment shall be a resin-rich layer 0.010 to 0.020 in. (0.25 to 0.5 mm) thick
reinforced with a s
...