Standard Specification for Butt heat Fusion Polyamide(PA) Plastic Fitting for Polyamide(PA) Plastic Pipe and Tubing

SCOPE
1.1 this specification covers polyamide (PA) butt fusion fittings for use with polyamide pipe (IPS and ISO) and tubing (CTS). Included are requirements for materials, workmanship, dimensions, marking, sustained pressure, and burst pressure.  
1.2 The values given in parentheses are provided for information only.

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Status
Historical
Publication Date
31-Dec-1995
Technical Committee
Drafting Committee
Current Stage
Ref Project

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ASTM F1733-96 - Standard Specification for Butt heat Fusion Polyamide(PA) Plastic Fitting for Polyamide(PA) Plastic Pipe and Tubing
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: F 1733 – 96
Standard Specification for
Butt Heat Fusion Polyamide(PA) Plastic Fitting for
Polyamide(PA) Plastic Pipe and Tubing
This standard is issued under the fixed designation F 1733; 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 unless otherwise specified.
3.2 dimension ratio (DR) for thermoplastic pipe—the ratio
1.1 This specification covers polyamide (PA) butt fusion
of diameter to wall thickness. For this specification it is
fittings for use with polyamide pipe (IPS and ISO) and tubing
calculated by dividing the specified outside diameter by the
(CTS). Included are requirements for materials, workmanship,
specified wall thickness of the fitting at its area of fusion. DRs
dimensions, marking, sustained pressure, and burst pressure.
are rounded and do not calculate exactly.
1.2 The values given in parentheses are provided for infor-
mation only.
4. Classification
2. Referenced Documents 4.1 General—This specification covers butt fusion fittings
intended for use with polyamide pipe and tubing.
2.1 ASTM Standards:
4.1.1 Fittings covered by this specification are normally
D 1598 Test Method for Time-to-Failure of Plastic Pipe
2 molded. Fittings may be machined from extruded or molded
Under Constant Internal Pressure
stock.
D 1599 Test Method for Short-Time Hydraulic Failure Pres-
2 4.1.2 Fittings fabricated by thermal welding are not in-
sure of Plastic Pipe, Tubing, and Fittings
cluded in this specification.
D 1600 Terminology for Abbreviated Terms Relating to
3 4.1.3 Fittings intended for use in the distribution of natural
Plastics
gas or petroleum fuels shall also meet the requirements of
D 2122 Test Method for Determining Dimensions of Ther-
Specification D 2513.
moplastic Pipe and Fittings
D 2513 Specification for Thermoplastic Gas Pressure Pipe,
5. Ordering Information
Tubing, and Fittings
5.1 When ordering fittings under this specification, the
D 4066 Specification for Nylon Injection and Extrusion
following should be specified:
Materials
2 5.1.1 Polyamide compound (material designation or trade
F 412 Terminology Relating to Plastic Piping Systems
name)
2.2 Federal Standard:
5 5.1.2 Style of fitting (tee, 90° ell, and the like)
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
5.1.3 Size:
2.3 Military Standard:
5 5.1.3.1 Nominal diameter.
MIL-STD-129 Marking for Shipment and Storage
5.1.3.2 CTS, IPS, or schedule.
2.4 National Sanitation Foundation Standard:
5.1.3.3 Dimension ratio number or schedule number.
Standard No. 14 for Plastic Piping Components and Related
Materials
6. Materials
3. Terminology 6.1 Basic Materials—This specification covers fittings
made from polyamide plastics as defined in Specification
3.1 Definitions are in accordance with Terminology F 412
D 4066.
and abbreviations are in accordance with Terminology D 1600,
NOTE 1—The PA plastic fittings intended for use in the transport of
1 potable water should be evaluated and certified as safe for this purpose by
This specification is under the jurisdiction of ASTM Committee F-17 on Plastic
a testing agency acceptable to the local health authority. The evaluation
Piping Systems and is the direct responsibility of Subcommittee F17.10 on Fittings.
should be in accordance with requirements for chemical extraction, taste,
Current edition approved Sept. 10, 1996. Published November 1996.
Annual Book of ASTM Standards, Vol 08.04. and odor, that are no less restrictive than those included in National
Annual Book of ASTM Standards, Vol 08.01.
Sanitation Foundation (NSF) Standard 14. The seal or mark of the
Annual Book of ASTM Standards, Vol 08.02.
laboratory making the evaluation should be included on the pipe and
Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
tubing.
Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Available from the National Sanitation Foundation, P.O. Box 1468, Ann Arbor, 6.2 Compounds—The polyamide fittings compounds shall
MI 48106.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
F 1733
TABLE 2 ISO Sizing System (ISO 161/1) Outside Diameters and
meet the requirements for Group 3, Class 2, and Grade 3, as
Tolerances for Fit for Use with Polyamide Pipe, mm
prescribed in Specification D 4066.
Average Outside Diameter at Area of Fusion
6.3 Rework Material—Clean rework material generated Nominal Pipe
A
Size
from the manufacturer’s own production may be used by the Min Max
same manufacturer as long as the fittings produced conform to 90 90.0 90.8
110 110.0 111.0
the requirements of this specification.
160 160.0 161.4
200 200.0 201.8
7. Requirements
250 250.0 252.3
280 280.0 282.5
7.1 Dimensions and Tolerances:
315 315.0 317.8
7.1.1 Outside Diameter—Nominal outside diameters of butt
355 355.0 358.2
fusion fittings shall conform to the nominal iron pipe size (IPS)
400 400.0 403.6
450 450.0 454.1
or copper tubing size (CTS) dimensions at area of fusion.
500 500.0 504.5
These dimensions and tolerances shall be as shown in Table 1,
560 560.0 565.0
Table 2, and Table 3of this specification.
630 630.0 635.7
710 710.0 716.4
7.1.2 Inside Diameter (CTS Fittings Only)—Inside diam-
800 800.0 807.2
eters of butt fusion fittings for tubing at area of fusion shall
900 900.0 908.1
conform to the dimensions of the tubing being joined. The 1000 1000.0 1009.0
1200 1200.0 1210.8
dimensions and tolerances for the fittings are shown in Table 3.
1400 1400.0 1412.6
7.1.3 Wall Thickness—The wall thicknesses of butt fusion
1600 1600.0 1614.4
fittings shall not be less than the minimum specified for the
A
Specified in ISO 3607.
pipe or tubing. The wall thicknesses and tolerances at the area
of fusion shall be as shown in Table 3, Table 4, and Table 5 of
Table 6 of this specification. Test specimens shall be prepared
this specification.
for testing in the manner described in 10.5.1 of this specifica-
7.1.4 Measurements—These shall be made in accordance
tion. The test equipment, procedures, and failures definitions
with Test Method D 2122 for roundable pipe.
shall be as specified in Test Method D 1599.
7.1.5 Design Dimensions—Overall fitting dimensions may
7.2.2 Short-Term Strength for Fittings 14 to 48 in. and 355
be as preferred from a design standpoint by the manufacturer
to 1600 mm, Nominal Diameter—Fittings shall not fail when
and accepted by the purchaser consistent with 7.1.3.
tested in accordance with 10.5.3. The minimum pressure shall
7.2 Pressure Test Requirements:
be as shown in Table 6 of this specification. Test specimens
7.2.1 Short-Term Rupture Strength for Fittings ⁄2 to 12 in.
shall be prepared for testing in the manner described in 10.2 of
and 90 to 315 mm, Nominal Diameter—The minimum short-
this specification. The test equipment and procedures shall be
term rupture strength of the fitting and fused pipe or tubing
as specified in Test Method D 1599.
shall not be less than the minimum short-term rupture strength
7.2.3 Sustained Pressure—The fitting and fused pipe or
of the pipe or tubing in the system when tested in accordance
tubing shall not fail, as defined in Test Method D 1598, when
with 10.5.3. These minimum pressures shall be as shown in
tested at the time, pressures, and test temperatures selected
from test options offered in Table 7. The test specimens shall be
TABLE 1 IPS Sizing System Outside Diameters and Tolerances
for Fittings for Use with Polyamide Pipe, in.
prepared for testing in the manner prescribed in 10.5.1.
Nominal Pipe Average Outside Diameter
Tolerance
A
Size at Area of Fusion 8. Workmanship, Finish, and Appearance
⁄2 0.840 60.008
8.1 The manufacture of these fittings shall be in accordance
⁄4 1.050 60.008
with good commercial practice so as to produce fittings
1 1.315 60.010
meeting the requirements of this specification. Fittings shall be
1 ⁄4 1.660 60.010
1 ⁄2 1.900 60.010
homogeneous throughout and free of cracks, holes, foreign
2 2.375 60.010
inclusions, or other injurious defects. The fittings shall be as
3 3.500 60.012
4 4.500 60.015 uniform as commercially practicable in color, opacity, density,
6 6.625 60.018
and other physical properties.
8 8.625 60.025
10 10.750 60.027
9. Sampling
12 12.750 60.036
14 14.000 60.063
9.1 Parts made for sale under this specification should be
16 16.000 60.072
sampled at a frequency appropriate for the end use intended.
18 18.000 60.081
20 20.000 60.090 When the fittings are to be installed under a system specifica-
21.5 21.500 60.097
tion (such as Specification D 2513 for gas), the minimum
22 22.000 60.099
requirements of that specification must be satisfied.
24 24.000 60.108
28 28.000 60.126
32 32.000 60.144
10. Test Methods
36 36.000 60.162
10.1 General—The test methods in this specification cover
42 42.000 60.189
48 48.000 60.216
fittings to be used with pipe and tubing for gas, water, and other
A
Defined as measured ⁄4 in. (6.4 mm) from fitting outlet extremity. engineered piping systems. Test methods that are applicable
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
F 1733
TABLE 3 Diameter, Wall Thickness, and Tolerances for Fittings for Use with Polyamide Tubing
A
Diameter at Area of Fusion
Tubing Type, Nominal Tubing Minimum Wall
Outside, in. (mm) Inside, in. (mm)
in. (mm) Size, in. Thickness, in. (mm)
Average Tolerance Average Tolerance
0.062 (1.57) ⁄2 CTS 0.625 (15.88) 60.010 (60.26) 0.495 (12.58) 60.004 (60.10) 0.062 (1.58)
⁄4CTS 0.875 (22.22) 60.010 (60.26) 0.745 (18.92) . .
0.090 (2.29) ⁄2CTS 0.625 (15.88) 60.010 (60.26) 0.437 (11.10) 60.004 (60.10) 0.090 (2.28)
⁄4 CTS 0.875 (22.22) 60.010 (60.26) 0.687 (17.44) 60.004 (60.10) 0.090 (2.28)
1 CTS 1.125 (28.58) 60.013 (60.34) 0.937 (23.80) 60.005 (60.12) 0.090 (2.28)
1 ⁄4 CTS 1.375 (34.92) 60.013 (60.34) 1.187 (30.14) 60.005 (60.12) 0.090 (2.28)
DR 11 ⁄4 CTS 0.875 (22.22) 60.010 (60.26) 0.715 (18.16) 60.004 (60.10) 0.077 (1.96)
1 CTS 1.125 (28.58) 60.013 (60.34) 0.915 (23.24) 60.005 (60.12) 0.101 (2.56)
1 ⁄4 CTS 1.375 (34.92) 60.013 (60.34) 1.125 (28.58) 60.005 (60.12) 0.121 (3.08)
DR 9.3 ⁄2 CTS 0.625 (15.88) 60.010 (60.26) 0.483 (12.26) 60.004 (60.10) 0.067 (1.70)
⁄4 CTS 0.875 (22.22) 60.010 (60.26) 0.679 (17.24) 60.004 (60.10) 0.094 (2.38)
1 CTS 1.125 (28.58) 60.013 (60.34) 0.873 (22.18) 60.005 (60.12) 0.121 (3.08)
1 ⁄4 CTS 1.375 (34.92) 60.013 (60.34) 1.069 (27.16) 60.005 (60.12) 0.148 (3.76)
A
Defined as measured ⁄4 in. (6.4 mm) from fitting outlet extremity.
A,B,C
TABLE 4 IPS Sizing System Wall Thickness and Tolerance at the Area of Fusion for Fittings for Use with Polyamide Pipe, in.
Minimum Wall Thickness
Nominal Pipe
Size
SCH 40 SCH 80 SDR 21 SDR 17 SDR 13.5 DR 10 DR 11.5 SDR 11 DR 9.3 SDR 9
⁄2 0.109 0.147 . . . . . . . . . . . . . . . 0.076 0.090 . . .
⁄4 0.113 0.154 . . . . . . . . . . . . . . . 0.095 0.113 0.117
1 0.133 0.179 . . . . . . . . . . . . . . . 0.119 0.142 0.146
1 ⁄4 0.140 0.191 . . . . . . . . . 0.166 . . . 0.151 0.179 0.184
1 ⁄2 0.145 0.200 . . . . . . . . . . . . . . . 0.173 0.204 0.211
2 0.154 0.218 . . . . . . . . . . . . . . . 0.216 0.256 0.264
3 0.216 0.300 . . . . . . 0.259 . . . 0.305 0.318 0.377 0.389
4 0.237 0.337 . . . 0.264 0.333 . . . 0.392 0.409 0.484 0.500
6 0.280 0.432 0.316 0.390 0.491 . . . 0.576 0.603 0.713 0.736
8 0.322 . . . 0.410 0.508 0.639 . . . 0.750 0.785 0.928 0.958
10 0.365 . . . 0.511 0.633 0.797 . . . 0.935 0.978 1.156 1.194
12 0.406 . . . 0.608 0.750 0.945 . . . 1.109 1.160 1.371 1.417
14 . . . . . . 0.667 0.824 . . . . . . . . . 1.273 1.505 1.556
16 . . . . . . 0.762 0.941 . . . . . . . . . 1.455 1.720 1.778
18 . . . . . . 0.857 1.059 . . . . . . . . . 1.636 1.935 2.000
20 . . . . . . 0.952 1.176 . . . . . . . . . 1.818 2.151 2.222
21.5 . . . . . . 1.024 1.265 . . . . . . . . . . . . . . . . . .
22 . . . . . . 1.048 1.294 . . . . . . . . . 2.000 2.366 2.444
24 . . . . . . 1.143 1.412 . . . . . . . . . 2.182 2.581 . . .
28 . . . . . . 1.333 1.647 . . . . . . . . . 2.545 . . . . . .
32 . . . . . . 1.524 1.882 . . . . . . . . . 2.909 . . . . . .
36 . . . . . . 1.714 2.118 . . . . . . . . . . . . . . . . . .
42 . . . . . . 2.000 2.471 . . . . . . . . . . . . . . . . . .
48 . . . . . . 2.286 . . . . . . . . . . . . . . . . . . . . .
A
Tolerance +20 %, −0 %.
B
For those SDR groups having overlapping thickness requirements, a manufacturer may represent their product as applying to the combination (for example, 11.0/11.5)
so long as their product falls within the dimensional requirements of both DR’s.
C
For wall thicknesses not listed the minimum wall thickness may be calculated by the average outside diameter/SDR rounded up to the nearest 0.001 in.
from other specifications will be referenced in the paragraph 10.4.2 Inside Diameter (CTS Fittings Only)—Use a stepped
pertaining to the particular test. Certain special test methods plug gage to determine the inside diameter of the CTS end of
applicable to this specification only are explained in the the fitting. The plug gage shall be of the go/no go type and shall
appropriate paragraph. have ⁄2-in. (12.7-mm) land lengths cut to the minimum inside
10.2 Conditioning—Unless otherwise specified, condition diameter and maximum inside diameter. A fitting is unaccept-
the specimens prior to test at 73.4 6 3.6°F (23 6 2°C) for not able (no go) if it fits snugly on the minimum inside diameter
less than6hinair,or1hin water, for those tests where land of the gage or if it fits loosely on the maximum diameter
conditioning is required and in all cases of disagreement. land of the gage.
Newly molded fittings shall be conditioned 40 h prior to test. 10.4.3 Wall Thickness—Make a series of measurements
10.3 Test Conditions—Conduct the tests at the standard using a cylindrical anvil tubular micrometer or other accurate
laboratory temperature of 73.4 6 3.6°F (23 6 2°C) unless device at closely spaced intervals to ensure that minimum and
otherwise specified. maximum wall thicknesses to the nearest 0.001 in. (0.02 mm)
10.4 Dimensions and Tolerances: have been determined. Make a minimum of six measurements
10.4.1 Outside Diameter—Measure the outside diameter at each cross section.
of the fittings at the area of fusion in accordance with the Wall 10.5 Pressure Testing:
Thickness section of Test Method D 2122 b
...

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