ASTM F437-99
(Specification)Standard Specification for Threaded Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe Fittings, Schedule 80
Standard Specification for Threaded Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic Pipe Fittings, Schedule 80
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 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.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses are given for information only.
1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.
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An American National Standard
Designation: F 437 – 99
Standard Specification for
Threaded Chlorinated Poly(Vinyl Chloride) (CPVC) Plastic
Pipe Fittings, Schedule 80
This standard is issued under the fixed designation F 437; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 2. Referenced Documents
1.1 This specification covers chlorinated poly(vinyl chlo- 2.1 ASTM Standards:
ride) (CPVC) threaded Schedule 80 pipe fittings. Included are D 618 Practice for Conditioning Plastics for Testing
requirements for materials, workmanship, dimensions, and D 1599 TestMethodforShort-TimeHydraulicFailurePres-
burst pressure. sure of Plastic Pipe, Tubing, and Fittings
D 1600 Terminology for Abbreviated Terms Relating to
NOTE 1—The CPVC fittings covered by this specification were covered
Plastics
previously in Specification D 2464.
D 1784 Specification for Rigid Poly(Vinyl Chloride) (PVC)
1.2 The products covered by this specification are intended
Compounds and Chlorinated Poly(Vinyl Chloride)
for use with the distribution of pressurized liquids only, which
(CPVC) Compounds
are chemically compatible with the piping materials. Due to
D 2122 Test Method for Determining Dimensions of Ther-
inherent hazards associated with testing components and sys- 3
moplastic Pipe and Fittings
tems with compressed air or other compressed gases some
D 2749 Symbols for Dimensions of Plastic Pipe Fittings
manufacturersdonotallowpneumatictestingoftheirproducts. 3
F 412 Terminology Relating to Plastic Piping Systems
Consult with specific product/component manufacturers for
F 1498 Specification for Taper Pipe Threads 60° for Ther-
their specific testing procedures prior to pneumatic testing. 3
moplastic Pipe and Fittings
NOTE 2—Pressurized (compressed) air or other compressed gases 2.2 Federal Standard:
contain large amounts of stored energy which present serious saftey
Fed Std. No. 123 Marking for Shipment (Civil Agencies)
hazards should a system fail for any reason.
2.3 Military Standard:
MIL-STD-129 Marking for Shipment and Storage
1.3 The text of this specification references notes, footnotes,
2.4 NSF Standard:
and appendixes which provide explanatory material. These
Standard No. 14 for Plastic Piping Components and Related
notesandfootnotes(excludingthoseintablesandfigures)shall
Materials
not be considered as requirements of the specification.
1.4 The values stated in inch-pound units are to be regarded
3. Terminology
as the standard. The values in parentheses are given for
3.1 Definitions:
information only.
3.1.1 Definitions are in accordance with Terminology F 412
1.5 The following safety hazards caveat pertains only to the
and abbreviations are in accordance withTerminology D 1600,
test method portion, Section 8, of this specification: This
unless otherwise indicated. The abbreviation for chlorinated
standard does not purport to address all of the safety concerns,
poly(vinyl chloride) is CPVC.
if any, associated with its use. It is the responsibility of the user
of this standard to establish appropriate safety and health
practices and determine the applicability of regulatory limita-
tions prior to use.
Annual Book of ASTM Standards, Vol 08.01.
Annual Book of ASTM Standards, Vol 08.04.
1 4
This specification is under the jurisdiction ofASTM Committee F-17 on Plastic AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
Piping Systems and is the direct responsibility of Subcommittee F17.10 on Fittings. Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Current edition approved May 10, 1999. Published July 1999. Originally Available from the National Sanitation Foundation, P.O. Box 1468,AnnArbor,
published as part of D 2464 – 74. Last previous edition F 437 – 96a. MI 48106.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F 437
4. Classification 6.1.2 The maximum angular variation of any opening shall
be not more than ⁄2° off the true centerline axis.
4.1 General—This specification covers threaded Schedule
6.1.3 Fittings Not Illustrated—All fittings, whether illus-
80CPVCpipefittings,intendedforusewiththreadedIronPipe
trated inTable 1 andTable 2 or not, shall have wall thicknesses
Size (IPS) outside-diameter plastic pipe.
and thread dimensions conforming to 6.1 and 6.2.
4.1.1 Fittings covered by this specification are normally
6.2 Threads—For all fittings having taper pipe threads,
molded. In-line fittings, such as couplings, unions, bushings,
threads shall conform to Specification F 1498 and be gaged in
caps, nipples, etc., shall be molded or machined from extruded
accordance with 8.4.
stock.
6.3 Burst Pressure:
4.1.2 Fittings fabricated by backwelding are not included in
6.3.1 The minimum burst strength of the fittings shall be not
this specification.
less than that calculated for the size and wall thickness of the
pipe with which it is to be used, when calculated from the
5. Materials and Manufacture
following equation:
5.1 This specification covers CPVC pipe fittings made from
S 5 P ~ D 2 t!/2 t (1)
compounds meeting the requirements of Class 23447 as o
defined in Specification D 1784.
where:
NOTE 3—Mechanical strength, heat resistance, flammability, and
chemical resistance requirements are covered in Specification D 1784. S = hoop stress, psi (or MPa),
P = internal pressure, psi (or MPa),
5.2 Rework Material—The manufacturers shall use only
D = average outside diameter, in. (or mm), and
o
their own clean rework fitting material and the fittings pro-
t = minimum wall thickness, in. (or mm).
duced shall meet all the requirements of this specification.
Fittings tested in accordance with 8.5 shall withstand the
minimum burst pressure shown in Table 3.
6. Requirements
6.3.2 Pressures shown are minimum burst pressures and do
6.1 Dimensions and Tolerances:
not imply rated working pressures. The burst pressure shall be
6.1.1 The dimensions and tolerances of the fittings shall be
used only as an indication of quality.
as shown in Table 1 and Table 2 when measured in accordance
7. Workmanship, Finish, and Appearance
with Test Method D 2122. Minimum dimensions have zero
negative tolerances. Bushings shall have thread lengths appli- 7.1 The fittings shall be homogeneous throughout and free
cable to the corresponding sizes. Counterbore, which is op-
of cracks, holes, foreign inclusions, or other defects. The
tional, is not shown in Table 1, and is not included in the fittings shall be as uniform as commercially practicable in
center-to-end or end-to-end dimensions. color, opacity, density, and other physical properties.
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
Size Tees, Crosses, T,min K,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 D 2749.
C
This dimension locates the end of the
...
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