1、Designation:D416797(Reapproved 2007)An American National StandardStandard Specification forFiber-Reinforced Plastic Fans and Blowers1This standard is issued under the fixed designation D4167;the number immediately following the designation indicates the year oforiginal adoption or,in the case of rev
2、ision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers centrifugal and axial fans andblowers with airstream components fabricated of
3、fiber-reinforced thermoset plastics(FRP)for corrosion resistance.Internal structures may include encapsulated metal fasteningdevices,hubs,and shafts.1.2 Reinforcing materials other than fibrous glass may beused in the fabrication,provided the fans and blowers producedmeet all the requirements of thi
4、s specification.1.3 The term“fans”as used in this specification includesfans and blowers,both centrifugal and axial.1.4 The purpose of this specification is to provide users,system designers,specifiers,and manufacturers of FRP fanswith minimum standards for fan construction and a commonbasis for det
5、ermining safe operating speeds.1.5 The values stated in inch-pound units are to be regardedas the standard.The values given in parentheses are providedfor information only.NOTE1There is no similar or equivalent ISO standard.NOTE2Appendix X2 contains a list of documents that may be ofinterest to desi
6、gners of fan systems.1.6 This standard does not puport to address all of the safetyconcerns,if any,associated with its use.It is the responsibilityof the user of this standard to establish appropriate safety andhelath practices and determine the applicability of regulatorylimitations prior to use.2.
7、Referenced Documents2.1 ASTM Standards:2C582 Specification for Contact-Molded Reinforced Thermo-setting Plastic(RTP)Laminates for Corrosion-ResistantEquipmentD883 Terminology Relating to PlasticsD2563 Practice for Classifying Visual Defects in Glass-Reinforced Plastic Laminate Parts2.2 Other Standar
8、ds:AMCABulletin 210 Laboratory Methods of Testing Fans forRating Purposes3ANSI S2.19 Balance Quality of Rotating Rigid Bodies43.Terminology3.1 DefinitionsThe definitions of terms used in this speci-fication are the same as those found in Terminology D883.4.Construction of Fan Housings4.1 Laminate Co
9、nstruction shall conform to SpecificationC582.The same resin shall be used throughout a housingunless the user and manufacturer agree to use a different resinfor the inner surface and interior layer than for the structurallayer.4.1.1 The inner surface exposed to the chemical environ-ment shall be a
10、resin-rich layer 0.010 to 0.020 in.(0.25 to 0.5mm)thick reinforced with a suitable chemical-resistant glass-fiber surface mat or with an organic-fiber surface mat.4.1.2 The inner surface layer shall be followed with aninterior layer composed of resin reinforced only with noncon-tinuous glass-fiber s
11、trands applied in a minimum of two pliesof chopped-strand mat equivalent to a total of 3 oz/ft2(0.92kg/m2).As an alternative,a minimum of two passes of choppedroving of minimum length of 0.5 in.(13 mm)to a maximumlength of 2.0 in.(50.8 mm)shall be applied uniformly to anequivalent weight of 3 oz/ft2
12、(0.92 kg/m2).Each ply of mat orpass of chopped roving shall be well rolled prior to theapplication of additional reinforcement.The combined thick-ness of the inner surface and interior layer shall not be less than0.10 in.(2.5 mm).4.1.3 The structural layer comprises the balance of thehousing laminat
13、e.NOTE3Although fan housings are subject to vibrational stresses,thedesign considerations regarding construction of the laminate are similar tothose used for static FRP process system components.1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsi
14、bility of Subcommittee D20.23 on ReinforcedPlastic Piping Systems and Chemical Equipment.Current edition approved Nov.1,2007.Published December 2007.Originallyapproved in 1982.Last previous edition approved in 2002 as D4167 97(2002).DOI:10.1520/D4167-97R07.2For referenced ASTM standards,visit the AS
15、TM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available fromAir Movement and ControlAssociation,30 West University Dr.,Arlington Heights,IL 60004.4Availab
16、le from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.2 Fastening Devices,such as bolts,shall be made ofmaterial the user and manufacturer agree is at least ascorrosion-resistant to the specified corrosive environment as isthe laminate construction,or shall be emb
