ASTM F437-24

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: F437 − 24 An American National Standard
Standard Specification for
Threaded Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic
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Pipe Fittings, Schedule 80
This standard is issued under the fixed designation F437; 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* Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.1 This specification covers chlorinated poly(vinyl chlo-
Barriers to Trade (TBT) Committee.
ride) (CPVC) threaded Schedule 80 pipe fittings. Included are
requirements for materials, workmanship, dimensions, and
2. Referenced Documents
burst pressure.
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2.1 ASTM Standards:
NOTE 1—The CPVC fittings covered by this specification were covered
D618 Practice for Conditioning Plastics for Testing
previously in Specification D2464.
D1599 Test Method for Resistance to Short-Time Hydraulic
1.2 The products covered by this specification are intended
Pressure of Plastic Pipe, Tubing, and Fittings
for use with the distribution of pressurized liquids only, which D1600 Terminology for Abbreviated Terms Relating to Plas-
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are chemically compatible with the piping materials. Due to
tics (Withdrawn 2024)
inherent hazards associated with testing components and sys- D1784 Classification System and Basis for Specification for
tems with compressed air or other compressed gases some
Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlo-
manufacturers do not allow pneumatic testing of their products. rinated Poly(Vinyl Chloride) (CPVC) Compounds
Consult with specific product/component manufacturers for
D2122 Test Method for Determining Dimensions of Ther-
their specific testing procedures prior to pneumatic testing. moplastic Pipe and Fittings
NOTE 2—Pressurized (compressed) air or other compressed gases
D2464 Specification for Threaded Poly(Vinyl Chloride)
contain large amounts of stored energy which present serious safety
(PVC) Plastic Pipe Fittings, Schedule 80
hazards should a system fail for any reason.
D2749 Symbols for Dimensions of Plastic Pipe Fittings
1.3 The text of this specification references notes, footnotes,
F412 Terminology Relating to Plastic Piping Systems
and appendixes which provide explanatory material. These
F1498 Specification for Taper Pipe Threads 60° for Thermo-
notes and footnotes (excluding those in tables and figures) shall
plastic Pipe and Fittings
not be considered as requirements of the specification.
2.2 Federal Standard:
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Fed Std. No. 123 Marking for Shipment (Civil Agencies)
1.4 The values stated in inch-pound units are to be regarded
2.3 Military Standard:
as standard. The values given in parentheses are mathematical
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MIL-STD-129 Marking for Shipment and Storage
conversions to SI units that are provided for information only
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2.4 NSF/ANSI Standards:
and are not considered standard.
NSF/ANSI Standard No. 14 for Plastic Piping Components
1.5 The following safety hazards caveat pertains only to the
and Related Materials
test method portion, Section 8, of this specification: This
NSF/ANSI Standard No. 61 Drinking Water System Com-
standard does not purport to address all of the safety concerns,
ponents – Health Effects
if any, associated with its use. It is the responsibility of the user
of this standard to establish appropriate safety, health, and
3. Terminology
environmental practices and determine the applicability of
3.1 Definitions:
regulatory limitations prior to use.
1.6 This international standard was developed in accor-
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
dance with internationally recognized principles on standard-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ization established in the Decision on Principles for the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
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The last approved version of this historical standard is referenced on
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This specification is under the jurisdiction of ASTM Committee F17 on Plastic www.astm.org.
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Piping Systems and is the direct responsibility of Subcommittee F17.10 on Fittings. DLA Document Services Building 4/D 700 Robbins Avenue Philadelphia, PA
Current edition approved April 1, 2024. Published April 2024. Originally 19111-5094 http://quicksearch.dla.mil/
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approved in 1974. Last previous edition approved in 2021 as F437 – 21. DOI: Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd
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