ASTM F437-24

Standard Specification for Threaded Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe Fittings, Schedule 80

ABSTRACT
This specification covers material requirements, workmanship, dimensions, and burst pressure for threaded schedule 80 chlorinated poly(vinyl chloride) (CPVC) plastic pipe fittings. Fittings fabricated by backwelding are not included in this specification. Fittings shall be homogeneous and free from defects. Dimensions of elbows, tees, crosses, couplings, plugs, and caps shall conform to the requirements of this specification. Requirements for test specimen conditioning, sampling, thread, burst pressure, and marking are included.
SCOPE
1.1 This specification covers chlorinated poly(vinyl chloride) (CPVC) threaded Schedule 80 pipe fittings. Included are requirements for materials, workmanship, dimensions, and burst pressure.  
Note 1: The CPVC fittings covered by this specification were covered previously in Specification D2464.  
1.2 The products covered by this specification are intended for use with the distribution of pressurized liquids only, which are chemically compatible with the piping materials. Due to inherent hazards associated with testing components and systems with compressed air or other compressed gases some manufacturers do not allow pneumatic testing of their products. Consult with specific product/component manufacturers for their specific testing procedures prior to pneumatic testing.
Note 2: Pressurized (compressed) air or other compressed gases contain large amounts of stored energy which present serious safety hazards should a system fail for any reason.  
1.3 The text of this specification references notes, footnotes, and appendixes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.5 The following safety hazards caveat pertains only to the test method portion, Section 8, of this specification: 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.  
1.6 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-Mar-2024
• ICS: 23.040.45 - Plastics fittings
• Technical Committee: F17 - Plastic Piping Systems
• Drafting Committee: F17.10 - Fittings

Relations

• Replaces: ASTM F437-21 - Standard Specification for Threaded Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe Fittings, Schedule 80
• Effective Date: 01-Apr-2024
• Referred By: ASTM F3215-22 - Standard Specification for Food Waste Dehydrators
• Effective Date: 01-Apr-2024
• Referred By: ASTM F1150-22 - Standard Specification for Commercial Food Waste Pulper and Waterpress Assembly
• Effective Date: 01-Apr-2024
• Referred By: ASTM F1899-14a(2019) - Standard Specification for Food Waste Pulper Without Waterpress Assembly
• Effective Date: 01-Apr-2024
• Referred By: ASTM F439-24 - Standard Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Pipe Fittings, Schedule 80
• Effective Date: 01-Apr-2024
• Referred By: ASTM D2464-23 - Standard Specification for Threaded Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80
• Effective Date: 01-Apr-2024

Overview

ASTM F437-24 is the comprehensive standard specification for threaded chlorinated poly(vinyl chloride) (CPVC) plastic pipe fittings, Schedule 80. Published by ASTM International, this standard outlines essential requirements for materials, workmanship, dimensions, and burst pressure for Schedule 80 CPVC threaded fittings. Applications covered are restricted to the distribution of pressurized liquids that are chemically compatible with CPVC. The standard excludes fittings fabricated by backwelding and does not pertain to pipe and fittings used for venting combustion gases. Its requirements ensure the performance, safety, and consistency of CPVC threaded pipe fittings used in a wide range of industrial, commercial, and domestic piping systems.

Key Topics

Core elements addressed by ASTM F437-24 include:

• Material Requirements: Fittings must be manufactured from CPVC compounds meeting recognized specifications, ensuring chemical compatibility and durability.
• Workmanship: Products must be homogeneous, with uniform color, opacity, and density, and free from defects such as cracks or inclusions.
• Dimensional Standards: The specification details precise dimensions for various Schedule 80 fitting types, including elbows, tees, crosses, couplings, plugs, and caps.
• Thread Specifications: All taper pipe threads must conform to ASTM F1498, ensuring leak-tight connections.
• Burst Pressure: Minimum burst strength is mandated for each fitting size, providing a quality benchmark. Performance must be validated through hydraulic testing.
• Sampling & Conditioning: Methods for test specimen selection and pre-conditioning are specified to ensure valid, reproducible results.
• Marking & Identification: Clear requirements for product marking ensure traceability, including manufacturer identity, material designation, certification marks, sizing, and the F437 designation.
• Safety Guidance: The standard cautions against pneumatic testing due to potential hazards and emphasizes responsibility for safe, compliant usage practices.

Applications

ASTM F437-24 fittings are essential for:

• Distribution of Pressurized Liquids: Designed for systems transporting water or other compatible liquids under pressure, particularly where corrosion resistance is needed.
• Industrial Process Piping: Utilized in chemical processing, wastewater treatment, and other environments requiring robust, chemically resistant piping systems.
• Commercial & Residential Plumbing: Suitable for potable water delivery, provided fittings are certified as compliant with health-effect standards (e.g., NSF/ANSI 61).
• Water Treatment & Distribution: Trusted for municipal infrastructure and facilities requiring reliable, standardized fittings for high-pressure liquid conveyance.

Note: These CPVC Schedule 80 fittings are not intended for use with flammable or compressed gases, nor for venting combustion products.

Related Standards

Various referenced and companion standards ensure interoperability and comprehensive testing:

• ASTM D1784 - Specification for Rigid PVC and CPVC compounds, covering mechanical and chemical requirements for material suitability.
• ASTM D2464 - Specification for Threaded PVC plastic pipe fittings, Schedule 80 (superseded by F437 for CPVC variants).
• ASTM D618 - Practice for Conditioning Plastics for Testing, ensuring consistency in specimen evaluation.
• ASTM D2122 - Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings.
• ASTM F1498 - Specification for Taper Pipe Threads 60° for Thermoplastic Pipe and Fittings.
• NSF/ANSI 14 & NSF/ANSI 61 - Standards for health effects and performance criteria in potable water contact applications.

Compliance with ASTM F437-24 guarantees that threaded CPVC Schedule 80 fittings meet rigorous requirements for high-performance, safety, and compatibility in demanding piping applications.

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: F437 − 24 An American National Standard
Standard Specification for
Threaded Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic
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.
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-
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:
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
MIL-STD-129 Marking for Shipment and Storage
conversions to SI units that are provided for information only
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-
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
dance with internationally recognized principles on standard-
contact ASTM Customer Service at [e-mail]. 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.
The last approved version of this historical standard is referenced on
This specification is under the jurisdiction of ASTM Committee F17 on Plastic www.astm.org.
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/
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., Ann
10.1520/F0437-24. Arbor, MI 48105, http://www.nsf.org.
*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
F437 − 24
3.1.1 Definitions are in accordance with Terminology F412 with Test Method D2122. Minimum dimensions have zero
and abbreviations are in accordance with Terminology D1600, negative tolerances. Bushings shall have thread lengths appli-
unless otherwise indicated. The abbreviation for chlorinated cable to the corresponding sizes. Counterbore, which is
poly(vinyl chloride) is CPVC. optional, is not shown in Table 1, and is not included in the
center-to-end or end-to-end dimensions.
4. Classification
6.1.2 Fittings Not Illustrated—All fittings, whether illus-
trated in Table 1 and Table 2 or not, shall have wall thicknesses
4.1 General—This specification covers threaded Schedule
80 CPVC pipe fittings, intended for use with threaded Iron Pipe and thread dimensions conforming to 6.1 and 6.2.
Size (IPS) outside-diameter plastic pipe.
6.2 Threads—For all fittings having taper pipe threads,
4.1.1 Fittings covered by this specification are normally
threads shall conform to Specification F1498 and be gaged in
molded. In-line fittings, such as couplings, unions, bushings,
accordance with 8.4.
caps, nipples, etc., shall be molded or machined from extruded
6.3 Burst Pressure:
stock.
6.3.1 The minimum burst strength of the fittings shall be not
4.1.2 Fittings fabricated by backwelding are not included in
less than that calculated for the size and wall thickness of the
this specification.
pipe with which it is to be used, when calculated from the
NOTE 3—This specification does not include requirements for pipe and
following equation:
fittings intended to be used to vent combustion gases.
S 5 P~ D 2 t!/2 t (1)
o
5. Materials and Manufacture
where:
5.1 This specification covers CPVC pipe fittings made from
S = hoop stress, psi (or MPa),
compounds meeting the requirements of Class 23447 as
P = internal pressure, psi (or MPa),
defined in Specification D1784.
D = average outside diameter, in. (or mm), and
o
t = minimum wall thickness, in. (or mm).
NOTE 4—Mechanical strength, heat resistance, flammability, and
chemical resistance requirements are covered in Specification D1784.
Fittings tested in accordance with 8.5 shall withstand the
minimum burst pressure shown in Table 3.
5.2 Rework Material—The manufacturers shall use only
their own clean rework fitting material and the fittings pro- 6.3.2 Pressures shown are minimum burst pressures and do
not imply rated working pressures. The burst pressure shall be
duced shall meet all the requirements of this specification.
used only as an indication of quality.
6. Requirements
7. Workmanship, Finish, and Appearance
6.1 Dimensions and Tolerances:
6.1.1 The dimensions and tolerances of the fittings shall be 7.1 The fittings shall be homogeneous throughout and free
as shown in Table 1 and Table 2 when measured in accordance of cracks, holes, foreign inclusions, or other defects. The
A,B
TABLE 1 Dimensions of 90° Ells, Tees, Crosses, 45° Elbows and Couplings (Straight Sizes), in. (mm)
Nominal Center to Thread Length of Center to Thread Inside Nominal Wall Outside Thread End to
C
Pipe End, 90° Elbows, Thread, End, 45° Elbow, Diameter Thickness, Diameter Thread End of
K, min
Size Tees, Crosses, T, min of Fitting, F, min of Hub, Coupling,
H, min D, min M, min L, min
⁄4 0.812 (20.62) 0.50 (12.70) 0.688 (17.48) 0.258 (6.55) 0.135 (3.43) 0.840 (21.34) 1.063 (27.00)
⁄8 0.938 (23.83) 0.50 (12.70) 0.750 (19.05) 0.379 (9.63) 0.144 (3.66) 1.000 (25.40) 1.063 (27.00)
⁄2 1.125 (28.58) 0.64 (16.26) 0.750 (19.05) 0.502 (12.75) 0.198 (5.03) 1.280 (32.51) 1.344 (34.14)
⁄4 1.250 (31.75) 0.65 (16.51) 1.000 (25.40) 0.698 (17.73) 0.207 (5.25) 1.500 (38.10) 1.500 (38.10)
1 1.500 (28.10) 0.81 (20.51) 1.125 (28.58) 0.911 (23.14) 0.225 (5.72) 1.810 (45.97) 1.688 (42.88)
1 ⁄4 1.750 (44.45) 0.85 (21.59) 1.313 (23.35) 1.227 (31.17) 0.261 (6.63) 2.200 (55.88) 1.750 (44.45)
1 ⁄2 1.938 (49.23) 0.85 (21.59) 1.438 (36.83) 1.446 (36.73) 0.270 (6.85) 2.500 (63.50) 2.000 (50.80)
2 2.250 (57.15) 0.90 (22.86) 1.625 (41.28) 1.881 (47.78) 0.297 (7.54) 3.000 (76.20) 2.063 (52.40)
2 ⁄2 2.688 (68.28) 1.21 (30.73) 1.938 (49.23) 2.250 (57.15) 0.315 (8.00) 3.560 (90.42) 2.625 (66.68)
3 3.063 (77.80) 1.30 (33.02) 2.125 (53.98) 2.820 (71.63) 0.405 (10.29) 4.300 (109.22) 2.750 (69.85)
4 3.625 (92.08) 1.38 (35.05) 2.625 (66.68) 3.737 (94.92) 0.450 (11.43) 5.430 (137.92) 3.000 (76.20)
6 5.125 (130.18) 1.50 (38.10) 3.250 (82.55) 5.646 (143.41) 0.504 (12.80) 7.625 (193.68) 3.250 (82.55)
A
The sketches and designs of fittings shown are illustrative only.
B
Symbols for dimensions are per Symbols D2749.
C
This dimension
...

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: F437 − 21 F437 − 24 An American National Standard
Standard Specification for
Threaded Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic
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*
1.1 This specification covers chlorinated poly(vinyl chloride) (CPVC) threaded Schedule 80 pipe fittings. Included are
requirements for materials, workmanship, dimensions, and burst pressure.
NOTE 1—The CPVC fittings covered by this specification were covered previously in Specification D2464.
1.2 The products covered by this specification are intended for use with the distribution of pressurized liquids only, which are
chemically compatible with the piping materials. Due to inherent hazards associated with testing components and systems with
compressed air or other compressed gases some manufacturers do not allow pneumatic testing of their products. Consult with
specific product/component manufacturers for their specific testing procedures prior to pneumatic testing.
NOTE 2—Pressurized (compressed) air or other compressed gases contain large amounts of stored energy which present serious safety hazards should a
system fail for any reason.
1.3 The text of this specification references notes, footnotes, and appendixes which provide explanatory material. These notes and
footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification.
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.5 The following safety hazards caveat pertains only to the test method portion, Section 8, of this specification: 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.
1.6 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
2.1 ASTM Standards:
D618 Practice for Conditioning Plastics for Testing
This specification is under the jurisdiction of ASTM Committee F17 on Plastic Piping Systems and is the direct responsibility of Subcommittee F17.10 on Fittings.
Current edition approved April 1, 2021April 1, 2024. Published May 2021April 2024. Originally approved in 1974. Last previous edition approved in 20152021 as
F437 – 15.F437 – 21. DOI: 10.1520/F0437-21.10.1520/F0437-24.
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
F437 − 24
D1599 Test Method for Resistance to Short-Time Hydraulic Pressure of Plastic Pipe, Tubing, and Fittings
D1600 Terminology for Abbreviated Terms Relating to Plastics (Withdrawn 2024)
D1784 Classification System and Basis for Specification for Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlorinated
Poly(Vinyl Chloride) (CPVC) Compounds
D2122 Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings
D2464 Specification for Threaded Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80
D2749 Symbols for Dimensions of Plastic Pipe Fittings
F412 Terminology Relating to Plastic Piping Systems
F1498 Specification for Taper Pipe Threads 60° for Thermoplastic Pipe and Fittings
2.2 Federal Standard:
Fed Std. No. 123 Marking for Shipment (Civil Agencies)
2.3 Military Standard:
MIL-STD-129 Marking for Shipment and Storage
2.4 NSF/ANSI Standards:
NSF/ANSI Standard No. 14 for Plastic Piping Components and Related Materials
NSF/ANSI Standard No. 61 Drinking Water System Components – Health Effects
3. Terminology
3.1 Definitions:
3.1.1 Definitions are in accordance with Terminology F412 and abbreviations are in accordance with Terminology D1600, unless
otherwise indicated. The abbreviation for chlorinated poly(vinyl chloride) is CPVC.
4. Classification
4.1 General—This specification covers threaded Schedule 80 CPVC pipe fittings, intended for use with threaded Iron Pipe Size
(IPS) outside-diameter plastic pipe.
4.1.1 Fittings covered by this specification are normally molded. In-line fittings, such as couplings, unions, bushings, caps, nipples,
etc., shall be molded or machined from extruded stock.
4.1.2 Fittings fabricated by backwelding are not included in this specification.
NOTE 3—This specification does not include requirements for pipe and fittings intended to be used to vent combustion gases.
5. Materials and Manufacture
5.1 This specification covers CPVC pipe fittings made from compounds meeting the requirements of Class 23447 as defined in
Specification D1784.
NOTE 4—Mechanical strength, heat resistance, flammability, and chemical resistance requirements are covered in Specification D1784.
5.2 Rework Material—The manufacturers shall use only their own clean rework fitting material and the fittings produced shall
meet all the requirements of this specification.
6. Requirements
6.1 Dimensions and Tolerances:
6.1.1 The dimensions and tolerances of the fittings shall be as shown in Table 1 and Table 2 when measured in accordance with
Test Method D2122. Minimum dimensions have zero negative tolerances. Bushings shall have thread lengths applicable to the
corresponding sizes. Counterbore, which is optional, is not shown in Table 1, and is not included in the center-to-end or end-to-end
dimensions.
The last approved version of this historical standard is referenced on www.astm.org.
DLA Document Services Building 4/D 700 Robbins Avenue Philadelphia, PA 19111-5094 http://quicksearch.dla.mil/
Available from NSF International, P.O. Box 130140, 789 N. Dixboro Rd., Ann Arbor, MI 48113-0140,48105, http://www.nsf.org.
F437 − 24
A,B
TABLE 1 Dimensions of 90° Ells, Tees, Crosses, 45° Elbows and Couplings (Straight Sizes), in. (mm)
Nominal Center to Thread Length of Center to Thread Inside Nominal Wall Outside Thread End to
C
Pipe End, 90° Elbows, Thread, End, 45° Elbow, Diameter Thickness, Diameter Thread End of
K, min
Size Tees, Crosses, T, min of Fitting, F, min of Hub, Coupling,
H, min D, min M, min L, min
⁄4 0.812 (20.62) 0.50 (12.70) 0.688 (17.48) 0.258 (6.55) 0.135 (3.43) 0.840 (21.34) 1.063 (27.00)
⁄8 0.938 (23.83) 0.50 (12.70) 0.750 (19.05) 0.379 (9.63) 0.144 (3.66) 1.000 (25.40) 1.063 (27.00)
⁄2 1.125 (28.58) 0.64 (16.26) 0.750 (19.05) 0.502 (12.75) 0.198 (5.03) 1.280 (32.51) 1.344 (34.14)
⁄4 1.250 (31.75) 0.65 (16.51) 1.000 (25.40) 0.698 (17.73) 0.207 (5.25) 1.500 (38.10) 1.500 (38.10)
1 1.500 (28.10) 0.81 (20.51) 1.125 (28.58) 0.911 (23.14) 0.225 (5.72) 1.810 (45.97) 1.688 (42.88)
1 ⁄4 1.750 (44.45) 0.85 (21.59) 1.313 (23.35) 1.227 (31.17) 0.261 (6.63) 2.200 (55.88) 1.750 (44.45)
1 ⁄2 1.938 (49.23) 0.85 (21.59) 1.438 (36.83) 1.446 (36.73) 0.270 (6.85) 2.500 (63.50) 2.000 (50.80)
2 2.250 (57.15) 0.90 (22.86) 1.625 (41.28) 1.881 (47.78) 0.297 (7.54) 3.000 (76.20) 2.063 (52.40)
2 ⁄2 2.688 (68.28) 1.21 (30.73) 1.938 (49.23) 2.250 (57.15) 0.315 (8.00) 3.560 (90.42) 2.625 (66.68)
3 3.063 (77.80) 1.30 (33.02) 2.125 (53.98) 2.820 (71.63) 0.405 (10.29) 4.300 (109.22) 2.750 (69.85)
4 3.625 (92.08) 1.38 (35.05) 2.625 (66.68) 3.737 (94.92) 0.450 (11.43) 5.430 (137.92) 3.000 (76.20)
6 5.125 (130.18) 1.50 (38.10) 3.250 (82.55) 5.646 (143.41) 0.504 (12.80) 7.625 (193.68) 3.250 (82.55)
A
The sketches and designs of fittings shown are illustrative only.
B
Symbols for dimensions are per Symbols D2749.
C
This dimension locates the end of the fitting.
A,B
TABLE 2 Dimensions of Plugs and Caps, in.
Nominal Pipe Length of Male Length of Female Width of Nominal Wall Height of Cap Height, Outside Diameter
B
Size Thread, S, min Thread, T, min Flats, Q, min Thickness, F, min Head, R, min W, min of Hub, M, min
⁄4 0.44 (11.18) 0.50 (12.70) 0.625 (15.88) 0.135 (3.43) 0.188 (4.78) 0.688 (17.48) 0.840 (21.34)
⁄8 0.44 (11.18) 0.50 (12.70) 0.750 (19.05) 0.144 (3.66) 0.188 (4.78) 0.688 (17.48) 1.000 (25.40)
⁄2 0.53 (13.46) 0.64 (16.26) 0.938 (23.83) 0.198 (5.03) 0.188 (4.73) 0.875 (22.23) 1.280 (32.51)
⁄4 0.55 (13.92) 0.65 (16.51) 1.125 (28.53) 0.207 (5.26) 0.219 (5.56) 1.000 (25.40) 1.450 (35.03)
1 0.68 (17.27) 0.81 (20.57) 1.375 (34.93) 0.225 (5.72) 0.219 (5.56) 1.188 (30.18) 1.810 (45.97)
1 ⁄4 0.71 (18.03) 0.85 (21.59) 1.750 (44.45) 0.261 (6.63) 0.281 (7.14) 1.250 (31.75) 2.200 (55.88)
1 ⁄2 0.72 (18.29) 0.85 (21.59) 1.875 (47.63) 0.270 (6.85) 0.313 (7.95) 1.250 (31.75) 2.450 (62.23)
2 0.76 (19.30) 0.90 (22.86) 1.875 (47.63) 0.297 (7.54) 0.313 (7.95) 1.375 (34.93) 3.000 (76.20)
2 ⁄2 1.14
...