ASTM F2135-01

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An American National Standard
Designation: F 2135 – 01
Standard Specification for
Molded Drain, Waste, and Vent (DWV) Short-Pattern Plastic
Fittings
This standard is issued under the fixed designation F 2135; 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.
1. Scope 3.2 All other dimensions shall be determined in accordance
with Test Method D 2122.
1.1 This specification covers standard fitting geometries for
3.3 The exact outside shape of a short-pattern fitting is
molded short-pattern plastic fittings intended for use in drain,
determined by the socket dimensions, wall thickness require-
waste, and vent applications.
ments,waterway,andanyothercriticaldimensionsthatmaybe
1.2 Fittings meeting the requirements of this specification
specified.
aredesignedforusewithoutside-diametercontrolledpipe.The
3.4 Configurations designed as short as possible are accept-
body inside diameter can vary significantly as the wall thick-
able providing that the minimum wall thickness requirements
ness and outside diameter varies, and therefore, is not suitable
for the particular nominal size being made is followed.
for use as a fitting socket.
3.5 All short-pattern fittings used for drainage and having a
1.3 Fittings meeting the requirements of this specification
90° directional change (except vent fittings) shall have a pitch
shall be tested in accordance with the applicable requirements
of ⁄4 in./ft or 1°128.
of Specifications D 2661 or D 2665.
3.6 All short-pattern fittings having tapered threads shall
1.4 The values stated in inch-pound units are to be regarded
conform and be gaged in accordance with Specification
as standard. The values given in parentheses are mathematical
F 1498.
conversions to SI units which are provided for information
3.7 45° Y-Branches:
only and are not considered standard.
3.7.1 Short-pattern 45° Y-branches shall not be pitched.
1.5 This standard does not purport to address all of the
3.7.1.1 When the branch of a short-pattern 45° Y is of a
safety concerns, if any, associated with its use. It is the
smaller diameter than the main body of the fitting, the internal
responsibility of the user of this standard to establish appro-
diameters of the fitting shall remain constant until they
priate safety and health practices and determine the applica-
intercept one another.
bility of regulatory requirements prior to use.
3.8 One-Quarter Bends:
2. Referenced Documents
3.8.1 Short-patternone-quarterbendsshallhaveacenterline
radius of curvature of not less than the nominal pipe size, with
2.1 ASTM Standards:
the exception of traps. The centerline radius of curvature shall
D 2122 Test Method for Determining Dimensions of Ther-
be measured in accordance with Section 4.
moplastic Pipe and Fittings
3.9 Sanitary Tees:
D 2661 Specification for Acrylonitrile-Butadiene-Styrene
3.9.1 Short-pattern sanitary tees and reducing tees shall
(ABS) Schedule 40 Plastic Drain, Waste, and Vent Pipe
have a centerline radius of curvature on the side branch of not
and Fittings
less than its nominal size, when measured in accordance with
D 2665 Specification for Poly(Vinyl Chloride) (PVC) Plas-
Section 4. The alignment of the side branch shall be so located
tic Drain, Waste, and Vent Pipe and Fittings
that the smallest inside radius of the side branch of the sanitary
D 2749 Symbols for Dimensions of Plastic Pipe Fittings
tee shall meet tangentially with, or within 5 % of, the main
F 1498 Specification for Taper Pipe Threads 60° for Ther-
bore (see Fig. 1), when measured in accordance with 4.4.5.
moplastic Pipe and Fittings
NOTE 1—Refer to Appendix X1 for geometric configurations of some
3. Requirements
of the fittings being produced. Consult the individual manufacturer for
3.1 Short-pattern fittings shall conform to the geometries as laying lengths.
specified in this specification.
4. Test Method for Determining Compliance of Short-
Pattern ⁄4Bends and Sanitary Tees
This specification is under the jurisdiction ofASTM Committee F17 on Plastic
4.1 Scope:
Piping Systems and is the direct responsibility of Subcommittee F17.63 on DWV.
Current edition approved August 10, 2001. Published October 2001.
Annual Book of ASTM Standards, Vol 08.04.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F 2135
FIG. 1 Measurement for Centerline Radius of Curvature and Branch Alignment
4.1.1 This test method covers the determination of the 4.4.2 Place the metal rule next to the specimen to be
centerline radius of short-pattern ⁄4bends and of the side photocopied. Make a photocopy of each half of the specimen.
branch of short-pattern sanitary tees.Amethod of determining (Ensure that the outline is clearly defined. White correction
the alignment of the side branch of short-pattern sanitary tees fluid or equivalent may be used.)
is also included.
4.4.3 Compare the metal rule to its photocopy. The photo-
4.2 Significance and Use copy shall not be enlarged or reduced.
4.4.4 Find the centerline radius of curvature for each half of
4.2.1 Determination of the centerline radius of curvature of
the fitting as follows (see Fig. 1).
short-pattern ⁄4 bends.
4.4.4.1 Locate points a, b, and c on the curved line forming
4.2.2 Determination of the centerline radius of curvature of
the inside of the fitting,
...