ASTM A861-04(2023)

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: A861 − 04 (Reapproved 2023)
Standard Specification for
High-Silicon Iron Pipe and Fittings
This standard is issued under the fixed designation A861; 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
Figs.
Quarter Bends 2
1.1 This specification covers high-silicon iron pipe and pipe
Sixth Bends 3
fittings intended for corrosion-resistant service for both above- Return Bends 4
Double-Branch Quarter Bend 5
and below-grade construction.
Eighth Bends 6
Sixteenth Bends 7
1.2 The values stated in inch-pound units are to be regarded
Long-Sweep Quarter Bends 8
as standard. The values given in parentheses are mathematical
Sanitary Y Branches 9
conversions to SI units that are provided for information only
Double-Branch Sanitary Y 10
Sanitary Combination Y and ⁄8 Bend 11
and are not considered standard.
Double-Branch Sanitary Combination Y and ⁄8 Bend 12
1.3 Pipe and pipe fittings shall be the no-hub (MJ) or the Sanitary T Branches 13
Double Branch Sanitary T 14
hub and plain-end design.
Sanitary Running Traps 15
Sanitary P Traps 16
1.4 Pipe and pipe fittings shall be of the sizes specified in
Swivel Trap P-Style, Short 17
Table 1 and Table 2 and Figs. 1–71 or other sizes that shall be
Swivel Trap P-Style, Long 18
permitted to conform to the requirements given herein.
Swivel Trap S-Style, Long 19
Centrifugal Drum Trap P Swivel Type 20
1.4.1 Pipe:
Centrifugal Drum Trap S Swivel Type 21
1.4.1.1 No-Hub (MJ) (Fig. 1):
Combination Cleanout and Test Tees 22
Coupling 23
Size (in.) Length (ft)
Pipe Plugs 24
1 ⁄2 7
Cleanout Plugs 25
2 7
No-Hub (MJ) Adapter 26
3 7
4 7 Reducers-Increasers 27
Sink Outlet 28
1.4.1.2 Hub/Plain End (Fig. 35):
Sink Overflows 29
Threaded Adapters 30
Size (in.) Length (ft)
Trap Cleanout Details 31
2 7
No-Hub (MJ) Adapter 32
3 7
(MJ) (No-Hub) to Lead Adapter 33
4 7
Floor Drains 34
6 7
8 7
1.4.3 Fitting (Hub/Plain End):
10 5
12 5 Figs.
Hub Plain-End Pipe 35
15 5
Straight Tees 36
1.4.2 Fitting (No-Hub) (MJ):
Sanitary T Branches 37
Sanitary Y Branches 38
Double-Branch Sanitary Tee 39
Double-Branch Sanitary Y 40
This specification is under the jurisdiction of ASTM Committee A04 on Iron
Double-Branch Sanitary Combination Y and ⁄8 Bend (T-Y) 41
Castings and is the direct responsibility of Subcommittee A04.12 on Pipes and
Short-Sweep Quarter Bends 42
Tubes.
Long-Sweep Quarter Bends 43
Current edition approved May 1, 2023. Published May 2023. Originally
Sanitary Combination Y and ⁄8 Bend (T-Y) 44
approved in 1986. Last previous edition approved in 2017 as A861 – 04 (2017).
Quarter Bends 45
DOI: 10.1520/A0861-04R23.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A861 − 04 (2023)
TABLE 2 Tolerances for High-Silicon Iron Fittings
Sixth Bends 46
Eighth Bends 47
NOTE 1—1 in. = 25.4 mm.
Sixteenth Bends 48
Sanitary Increasers 49 ID Tolerance, OD Tolerance, Stop Lug Depth
Size, in.
Hub Strainers 50 in. in. Tolerance, in.
Sanitary Reducers 51
1 1 1 1
1 ⁄2 ± ⁄16 ± ⁄16 ± ⁄16
Double Hubs 52
1 1 1 1 1
1 ⁄2 × 1 ⁄2 ± ⁄16 ± ⁄16 ± ⁄16
Pipe Plugs 53
1 1 1
2 ± ⁄16 ± ⁄16 ± ⁄16
Cleanout Plugs 54
1 1 1 1
2 × 1 ⁄2 ± ⁄16 ± ⁄16 ± ⁄16
Adapter – Plain end to Split Flange 55
1 1 1
2 × 2 ± ⁄16 ± ⁄16 ± ⁄16
Adapter – Hub to Split Flange 56
1 1 1
3 ± ⁄16 ± ⁄16 ± ⁄16
Combination Cleanout and Test Tees 57
1 1 1 1
3 × 1 ⁄2 ± ⁄16 ± ⁄16 ± ⁄16
Insertable Joints 58
1 1 1
3 × 2 ± ⁄16 ± ⁄16 ± ⁄16
Backwater Valves 59
1 1 1
3 × 3 ± ⁄16 ± ⁄16 ± ⁄16
Sanitary P Traps 60
1 1 1
4 ± ⁄16 ± ⁄16 ± ⁄16
Sanitary S Traps 61
1 1 1 1
4 × 1 ⁄2 ± ⁄16 ± ⁄16 ± ⁄16
Sanitary Running Traps 62
1 1 1
4 × 2 ± ⁄16 ± ⁄16 ± ⁄16
Floor Drains 63, 64, 65
1 1 1
4 × 3 ± ⁄16 ± ⁄16 ± ⁄16
Floor Drains 66
1 1 1
4 × 4 ± ⁄16 ± ⁄16 ± ⁄16
Floor Drains/Installation – Funnel Attachment 67, 68
Overflow 69
Sink Outlet 70
Detailed Cross Section of Cleanout 71
TABLE 3 Chemical Composition
Chemical Composition Table 3
Composition, Weight %
Transverse Bend Test Minimum Requirements Table S1.1
Element
Grade 1 Grade 2
1.5 This international standard was developed in accor-
Carbon 0.65–1.10 0.75–1.15
dance with internationally recognized principles on standard-
Manganese 1.50 max 1.50 max
ization established in the Decision on Principles for the
Silicon 14.20–14.75 14.20–14.75
Chromium 0.50 max 3.25–5.00
Development of International Standards, Guides and Recom-
Molybdenum 0.50 max 0.40-0.60
mendations issued by the World Trade Organization Technical
Copper 0.50 max 0.50 max
Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
A518/A518M Specification for Corrosion-Resistant High-
Silicon Iron Castings
E350 Test Methods for Chemical Analysis of Carbon Steel,
Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and
Wrought Iron
E351 Test Methods for Chemical Analysis of Cast Iron—All
Types
2.2 Other Standards:
Uniform Classification Rules
Size, in. J, in. F, in. t, in.
National Motor Freight Classification
1 3 5
1 ⁄2 2 ⁄16 (2.19) 84 ⁄16
11 5
2 2 ⁄16 (2.69) 84 ⁄16
49 5
3 3 ⁄64 (3.77) 84 ⁄16
49 5
4 4 ⁄64 (4.77) 84 ⁄16
For referenced ASTM standards, visit the ASTM website, www.astm.org, or NOTE 1—1 in. = 25.4 mm.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
FIG. 1 No-Hub Pipe (MJ)
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Available from American Trucking Association, 950 North Glebe Road, Suite
210, Arlington, VA 22203-4181.
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
TABLE 1 Tolerances for High-Silicon Iron Hub/Plain-End Pipe
3.1.1 hubless—a pipe or fitting without a hub, sometimes
NOTE 1—1 in. = 25.4 mm.
called no-hub, joined by a coupling.
Size, in. Wall Thickness, in. ID Tolerance, in. OD Tolerance, in.
3.1.2 MJ—an abbreviation for mechanical joint.
1 1 1
2 ± ⁄32 ± ⁄32 ± ⁄32
1 1 1
3 ± ⁄32 ± ⁄32 ± ⁄32 3.1.3 no-hub—a pipe or fitting without a hub, sometimes
1 1 1
4 ± ⁄32 ± ⁄32 ± ⁄32
described as hubless joined by a coupling.
1 1 3
6 ± ⁄32 ± ⁄32 ± ⁄64
1 1 1
8 ± ⁄32 ± ⁄8 ± ⁄8
1 1 1
4. Ordering Information
10 ± ⁄8 ± ⁄8 ± ⁄8
1 1 1
12 ± ⁄8 ± ⁄8 ± ⁄8
4.1 Ordering for material under this specification shall
1 1 1
15 ± ⁄8 ± ⁄8 ± ⁄8
include as a minimum the following information:
A861 − 04 (2023)
4.1.3 Length, diameter, and type of pipe and size and shape
of fittings.
4.1.4 Quantity.
4.1.5 Certification requirements.
4.1.6 Special packaging requirements (see Section 14).
4.1.7 Supplemental requirements desired, if any.
5. Materials and Manufacture
5.1 The castings shall be produced by any established
commercial practice applicable to high-silicon iron.
Stop Lug
Size, in. D, in. ID, in. OD, in.
5.2 The castings shall be true to pattern, reasonably smooth,
Depth (P), in.
1 1 1 3 1
1 ⁄2 4 ⁄4 1 ⁄2 2 ⁄16 (2.19) 1 ⁄32 and free from defects that would make the castings unfit for the
1 5 1
2 4 ⁄2 2 2 ⁄8 (2.62) 1 ⁄32
use for which they are intended.
1 3 1 1 5 3 1
2 × 1 ⁄2 4 ⁄16 × 4 ⁄2 2 × 1 ⁄2 2 ⁄8 × 2 ⁄16 1 ⁄32
3 1
3 5 3 3 ⁄4 (3.75) 1 ⁄32
6. Chemical Composition
1 3 1
4 5 ⁄2 4 4 ⁄4 (4.75) 1 ⁄32
6.1 An analysis of each heat shall be made by the manufac-
NOTE 1—1 in. = 25.4 mm.
turer from a test sample that is representative of the heat and
FIG. 2 Quarter Bends
that is taken during the heat. A heat shall consist of all castings
poured from a furnace or crucible melt without recharging new
metal into the furnace. The chemical composition thus deter-
mined shall conform to the requirements for the grade selected
specified in Table 3.
6.2 A product analysis shall be permitted to be made by the
purchaser from material representing the heat. The chemical
composition thus determined shall meet the requirements
specified in Table 3 or shall be subject to rejection by the
Stop Lug
Size, in. D, in. ID, in. OD, in.
Depth (P), in.
purchaser.
1 1 3 1
1 ⁄2 3 1 ⁄2 2 ⁄16 1 ⁄32
6.3 Spectrometric or other instrumental methods and wet
1 5 1
2 3 ⁄4 2 2 ⁄8 1 ⁄32
1 3 1
laboratory methods are acceptable for routine control determi-
3 3 ⁄2 3 3 ⁄4 1 ⁄32
3 3 1
4 3 ⁄4 4 4 ⁄4 1 ⁄32
nations. Any method employed shall give essentially the same
results as reference methods listed in Test Methods E350. (For
NOTE 1—1 in. = 25.4 mm.
selected detailed methods of analysis, see Specification A518/
FIG. 3 Sixth Bends
A518M, paragraph 6.4).
7. Heat Treatment
7.1 All centrifugally cast high-silicon iron pipe shall be
supplied in the as-cast condition. All other pipe and fittings
shall be supplied in the stress-relieved condition.
7.2 Stress relieving shall be performed as follows:
7.2.1 Hold the casting at 1650 °F (870 °C) minimum for 2 h
plus an additional hour per inch of section thickness for
castings over 2 in. in thickness.
7.2.2 Cool the castings to 400 °F (205 °C) maximum at a
Stop Lug
rate not to exceed 100 °F (55 °C) ⁄15 min.
Size, C, D, F, R, ID, OD,
Depth
in. in. in. in. in. in. in.
7.2.3 From 400 °F (205 °C) to ambient, the castings shall be
(P), in.
permitted to be cooled in still, ambient air.
1 3 1 3 1
1 ⁄2 4 2 5 ⁄32 2 1 ⁄2 2 ⁄16 1 ⁄32
3 11 3 5 1
2 4 ⁄4 2 5 ⁄16 2 ⁄8 2 2 ⁄8 1 ⁄32
8. Joints
NOTE 1—1 in. = 25.4 mm.
8.1 Acid-proof joints for hub/plain-end pipe shall require
FIG. 4 Return Bends
the use of an acid-proof rope packing.
8.2 No-hub pipe and fittings shall require a special acid-
resistant mechanical joint (MJ) coupling. One satisfactory
coupling consists of an inner PTFE sleeve surrounded by
4.1.1 ASTM designation, grade (see Table 3), and year of
neoprene. The two-bolt coupling is made of 300 series stainless
issue.
steel.
4.1.2 Description of the casting by figure number (see Figs.
1–71) or by manufacturer’s drawings or catalog number, or 8.3 High-silicon iron pipe can be cut with either manual or
both. hydraulic snap cutters. Field cuts shall be permitted to be
A861 − 04 (2023)
Stop Lug
Size, D, E, ID, OD,
Depth (P),
in. in. in. in. in.
in.
1 7 3 1 3 1
1 ⁄2 3 ⁄8 3 ⁄4 1 ⁄2 2 ⁄16 1 ⁄32
NOTE 1—1 in. = 25.4 mm.
FIG. 5 Double-Branch Quarter Bend
Size, D, ID, OD, Stop Lug Depth
in. in. in. in. (P), in.
1 1 1 3 1
1 ⁄2 2 ⁄2 1 ⁄2 2 ⁄16 1 ⁄32
3 5 1
2 2 ⁄4 2 2 ⁄8 1 ⁄32
3 1
3 3 3 3 ⁄4 1 ⁄32
1 3 1
4 3 ⁄4 4 4 ⁄4 1 ⁄32
NOTE 1—1 in. = 25.4 mm.
FIG. 6 Eighth Bends
Size, D, ID, OD, Stop Lug Depth
in. in. in. in. (P), in.
1 1 3 1
1 ⁄2 2 1 ⁄2 2 ⁄16 1 ⁄32
1 5 1
2 2 ⁄8 2 2 ⁄8 1 ⁄32
1 3 1
3 2 ⁄4 3 3 ⁄4 1 ⁄32
3 3 1
4 2 ⁄8 4 4 ⁄4 1 ⁄32
NOTE 1—1 in. = 25.4 mm.
FIG. 7 Sixteenth Bends
readily used with mechanical joint couplings to provide ac- 9.1.1 Hub/plain-end pipe shall have a hub at one end and a
ceptable leak-proof joints. plain end at the other and shall be cast in one piece (see Fig.
35).
9. Dimensions and Permissible Variations
9.1.2 Individual length of hub/plain-end pipe shall be either
9.1 Pipe: 7 or 5 ft nominal laying lengths as shown in Fig. 35.
A861 − 04 (2023)
FIG. 8 Long-Sweep Quarter Bends
Stop Lug
Size, D, F, G, ID, OD,
Depth (P),
in. in. in. in. in in.
in.
1 1 5 1 7 1 1 3 3 1
⁄2 × 1 ⁄2 4 ⁄8 6 ⁄2 1 ⁄8 1 ⁄2 × 1 ⁄2 2 ⁄16 × 2 ⁄16 1 ⁄32
1 7 1 5 1 5 3 1
2 × 1 ⁄2 4 ⁄8 6 ⁄2 1 ⁄8 2 × 1 ⁄2 2 ⁄8 × 2 ⁄16 1 ⁄32
5 3 5 5 1
2 × 2 4 ⁄8 6 ⁄8 2 2 × 2 2 ⁄8 × 2 ⁄8 1 ⁄32
1 5 1 1 1 3 3 1
3 × 1 ⁄2 5 ⁄8 6 ⁄2 1 ⁄4 3 × 1 ⁄2 3 ⁄4 × 2 ⁄16 1 ⁄32
7 1 1 3 5 1
3 × 2 5 ⁄8 7 ⁄8 1 ⁄2 3 × 2 3 ⁄4 × 2 ⁄8 1 ⁄32
3 5 1 3 3 1
3 × 3 6 ⁄8 8 ⁄8 2 ⁄4 3 × 3 3 ⁄4 × 3 ⁄4 1 ⁄32
1 5 1 3 1 3 3 1
4 × 1 ⁄2 6 ⁄8 7 ⁄2 1 ⁄8 4 × 1 ⁄2 4 ⁄4 × 2 ⁄16 1 ⁄32
5 1 3 3 5 1
4 × 2 6 ⁄8 7 ⁄2 1 ⁄8 4 × 2 4 ⁄4 × 2 ⁄8 1 ⁄32
1 3 3 3 3 1
4 × 3 7 ⁄8 8 ⁄4 1 ⁄4 4 × 3 4 ⁄4 × 3 ⁄4 1 ⁄32
5 1 5 3 3 1
4 × 4 7 ⁄8 10 ⁄4 2 ⁄8 4 × 4 4 ⁄4 × 4 ⁄4 1 ⁄32
NOTE 1—1 in. = 25.4 mm.
FIG. 9 Sanitary Y Branches
9.1.3 Any deflections in the barrel of a single length of pipe product analysis shall be made at the place of manufacture
shall not exceed ⁄16 in. unless otherwise agreed upon.
9.1.4 No-hub pipe shall be cast in a single piece and
10.2 Inspection and Test by the Purchaser—The manufac-
conform to nominal dimensions shown in Fig. 1.
turer shall afford the purchaser’s inspector all reasonable
9.1.5 No dimension of hub/plain-end pipe shall exceed the
facilities necessary to satisfy that the material is being pro-
tolerances specified in Table 1.
duced and furnished in accordance with this specification.
9.2 Fittings—All fittings shall conform to the nominal
Foundry inspection by the purchaser shall not interfere unnec-
dimensions specified in applicable figures and be within the
essarily with the manufacturer’s operations.
tolerances specified in Table 2 for fittings listed in Figs. 2–34
or in Table 1 for fittings listed in Figs. 36–39.
11. Rejection and Rehearing
10. Inspection
11.1 Material that shows unacceptable discontinuities as
determined by the acceptance standards specified in the order,
10.1 Inspection and Test by the Manufacturer—Pipe and
fittings shall be inspected by the manufacturer prior to ship- subsequent to its acceptance at the manufacturer’s works, shall
be rejected and the manufacturer shall be notified within 30
ment. Inspection by the manufacturer shall include all tests as
specified herein. All tests and inspection with the exception of days unless otherwise agreed upon.
A861 − 04 (2023)
Size, D, F, G, ID, OD, Stop Lug
Depth (P),
in. in. in. in. in. in.
in.
1 1 5 1 7 1 1 3 3 1
1 ⁄2 × 1 ⁄2 4 ⁄8 6 ⁄2 1 ⁄8 1 ⁄2 × 1 ⁄2 2 ⁄16 × 2 ⁄16 1 ⁄32
1 7 1 5 1 5 3 1
2 × 1 ⁄2 4 ⁄8 6 ⁄2 1 ⁄8 2 × 1 ⁄2 2 ⁄8 × 2 ⁄16 1 ⁄32
5 3 5 5 1
2 × 2 4 ⁄8 6 ⁄8 2 2 × 2 2 ⁄8 × 2 ⁄8 1 ⁄32
1 5 1 1 1 3 3 1
3 × 1 ⁄2 5 ⁄8 6 ⁄2 1 ⁄4 3 × 1 ⁄2 3 ⁄4 × 2 ⁄16 1 ⁄32
7 1 1 3 5 1
3 × 2 5 ⁄8 7 ⁄8 1 ⁄2 3 × 2 3 ⁄4 × 2 ⁄8 1 ⁄32
3 5 1 3 3 1
3 × 3 6 ⁄8 8 ⁄8 2 ⁄4 3 × 3 3 ⁄4 × 3 ⁄4 1 ⁄32
5 1 3 3 5 1
4 × 2 6 ⁄8 7 ⁄2 1 ⁄8 4 × 2 4 ⁄4 × 2 ⁄8 1 ⁄32
1 3 3 3 3 1
4 × 3 7 ⁄8 8 ⁄4 1 ⁄4 4 × 3 4 ⁄4 × 3 ⁄4 1 ⁄32
5 1 5 3 3 1
4 × 4 7 ⁄8 10 ⁄4 2 ⁄8 4 × 4 4 ⁄4 × 4 ⁄4 1 ⁄32
NOTE 1—1 in. = 25.4 mm.
FIG. 10 Double-Branch Sanitary Y
Size, D, E, F, G, ID, OD, Stop Lug
in. in. in. in. in. in. in. Depth
(P), in.
1 1 3 3 1 7 1 1 3 3 1
1 ⁄2 × 1 ⁄2 4 ⁄4 5 ⁄8 6 ⁄2 1 ⁄8 ⁄2 × 1 ⁄2 2 ⁄16 × 2 ⁄16 1 ⁄32
1 3 3 1 5 1 5 3 1
2 × 1 ⁄2 4 ⁄4 5 ⁄4 6 ⁄2 1 ⁄8 2 × 1 ⁄2 2 ⁄8 × 2 ⁄16 1 ⁄32
7 5 7 5 5 1
2 × 2 5 5 ⁄8 6 ⁄8 1 ⁄8 2 × 2 2 ⁄8 × 2 ⁄8 1 ⁄32
1 1 1 5 1 3 3 1
3 × 1 ⁄2 4 5 ⁄4 6 ⁄2 1 ⁄8 3 × 1 ⁄2 3 ⁄4 × 2 ⁄16 1 ⁄32
1 1 1 3 5 1
3 × 2 5 6 ⁄4 7 ⁄8 1 ⁄2 3 × 2 3 ⁄4 × 2 ⁄8 1 ⁄32
1 1 1 3 3 1
3 × 3 6 ⁄4 7 8 ⁄2 2 ⁄4 3 × 3 3 ⁄4 × 3 ⁄4 1 ⁄32
1 5 1 5 3 1 3 3 1
4 × 1 ⁄2 4 ⁄16 6 ⁄8 6 ⁄8 1 ⁄8 4 × 1 ⁄2 4 ⁄4 × 2 ⁄16 1 ⁄32
3 3 3 3 5 1
4 × 2 5 6 ⁄8 7 ⁄8 1 ⁄8 4 × 2 4 ⁄4 × 2 ⁄8 1 ⁄32
1 3 3 3 3 1
4 × 3 6 7 ⁄4 8 ⁄4 1 ⁄4 4× 3 4 ⁄4 × 3 ⁄4 1 ⁄32
3 1 5 3 3 1
4 × 4 7 ⁄8 8 10 ⁄4 2 ⁄8 4× 4 4 ⁄4 × 4 ⁄4 1 ⁄32
NOTE 1—1 in. = 25.4 mm.
FIG. 11 Sanitary Combination Y and ⁄8 Bend
12. Certification 13.2 Samples that represent rejected material shall be pre-
served for a minimum of two weeks from the date of
12.1 Upon request of the purchaser, the manufacturer shall
transmission of the rejection report. In case of dissatisfaction
certify that his product conforms to the requirements of this
with the results of the tests, the manufacturer shall be permitted
specification. The results of tests shall be furnished to the
to make claim for a rehearing within that time.
purchaser upon request as mutually agreed upon.
13. Product Marking 14. Packaging
13.1 Each length of pipe and fitting shall be identified by the 14.1 Unless otherwise specified, the material shall be pack-
manufacturer’s name or identification mark. Marking shall be aged in accordance with the supplier’s standard practice and
as not to impair the usefulness of the part. acceptable to the carrier at the lowest rates. Containers and
A861 − 04 (2023)
Stop Lug
Size, D, E, F, G, ID, OD,
Depth
in. in. in. in. in. in. in.
(P), in.
1 1 3 3 1 7 1 1 3 3 1
1 ⁄2 × 1 ⁄2 4 ⁄4 5 ⁄8 6 ⁄2 7 ⁄8 1 ⁄2 × 1 ⁄2 2 ⁄16 × 2 ⁄16 1 ⁄32
1 3 3 1 5 1 5 3 1
2 × 1 ⁄2 4 ⁄4 5 ⁄4 6 ⁄2 1 ⁄8 2 × 1 ⁄2 2 ⁄8 × 2 ⁄16 1 ⁄32
7 5 5 5 5 1
2 × 2 5 5 ⁄8 6 ⁄8 1 ⁄8 2 × 2 2 ⁄8 × 2 ⁄8 1 ⁄32
1 1 1 1 5 1 3 3 1
3 × 1 ⁄2 4 ⁄4 5 ⁄4 6 ⁄2 1 ⁄8 3 × 1 ⁄2 3 ⁄4 × 2 ⁄16 1 ⁄32
1 1 1 3 5 1
3 × 2 5 6 ⁄4 7 ⁄8 1 ⁄2 3 × 2 3 ⁄4 × 2 ⁄8 1 ⁄32
1 1 1 3 3 1
3 × 3 6 ⁄4 7 8 ⁄2 2 ⁄4 3 × 3 3 ⁄4 × 3 ⁄4 1 ⁄32
3 3 3 3 5 1
4 × 2 5 6 ⁄8 7 ⁄8 1 ⁄8 4 × 2 4 ⁄4 × 2 ⁄8 1 ⁄32
1 3 3 3 3 1
4 × 3 6 7 ⁄4 8 ⁄4 1 ⁄4 4 × 3 4 ⁄4 × 3 ⁄4 1 ⁄32
3 1 5 3 3 1
4 × 4 7 ⁄8 8 10 ⁄4 2 ⁄8 4 × 4 4 ⁄4 × 4 ⁄4 1 ⁄32
NOTE 1—1 in. = 25.4 mm.
FIG. 12 Double-Branch Sanitary Combination Y and ⁄8 Bend
Size, in. E, in. F, in. G, in. ID, in. OD, in. Stop Lug
Depth (P), in.
1 1 1 3 1 1 1 3 3 1
1 ⁄2 × 1 ⁄2 4 ⁄4 6 ⁄4 4 ⁄4 1 ⁄2 × 1 ⁄2 2 ⁄16 × 2 ⁄16 1 ⁄32
1 1 3 1 1 5 3 1
2 × 1 ⁄2 4 ⁄2 6 ⁄4 4 ⁄4 2 × 1 ⁄2 2 ⁄8 × 2 ⁄16 1 ⁄32
1 1 1 3 1 1 1 5 3 3 1
2 × 1 ⁄2 × 1 ⁄2 4 ⁄2 6 ⁄4 4 ⁄4 2 × 1 ⁄2 × 1 ⁄2 2 ⁄8 × 2 ⁄16 × 2 ⁄16 1 ⁄32
1 7 1 5 5 1
2 × 2 4 ⁄2 6 ⁄8 4 ⁄2 2 × 2 2 ⁄8 × 2 ⁄8 1 ⁄32
1 3 1 1 3 3 1
3 × 1 ⁄2 5 6 ⁄4 4 ⁄4 3 × 1 ⁄2 3 ⁄4 × 2 ⁄16 1 ⁄32
1 1 3 5 1
3 × 2 5 7 ⁄4 4 ⁄2 3 × 2 3 ⁄4 × 2 ⁄8 1 ⁄32
3 3 3 1
3 × 3 5 8 ⁄8 5 3× 3 3 ⁄4 × 3 ⁄4 1 ⁄32
1 9 7 7 1 3 3 1
4 × 1 ⁄2 5 ⁄16 6 ⁄8 4 ⁄32 4× 1 ⁄2 4 ⁄4 × 2 ⁄16 1 ⁄32
1 1 1 3 5 1
4 × 2 5 ⁄2 7 ⁄4 4 ⁄2 4 × 2 4 ⁄4 × 2 ⁄8 1 ⁄32
1 1 3 3 1
4 × 3 5 ⁄2 8 ⁄4 5 4 × 3 4 ⁄4 × 3 ⁄4 1 ⁄32
1 3 1 3 3 1
4 × 4 5 ⁄2 9 ⁄8 5 ⁄2 4 × 4 4 ⁄4 × 4 ⁄4 1 ⁄32
NOTE 1—1 in. = 25.4 mm.
FIG. 13 Sanitary T Branches
packing shall comply with Uniform Classification Rules or
National Motor Freight Classification Rules.
15. Keywords
15.1 corrosion resistant; fittings; high-silicon iron; hubless;
hub/plain-end; no-hub; plain-end
A861 − 04 (2023)
Size, A, B, C, D, J, R, ID, OD, Stop
Size, E, F, G, ID, OD, Stop Lug
in. in. in. in. in. in. in. in. in. Lug
in. in. in. in. in. in. Depth (P),
Depth
in.
(P), in.
1 1 1 3 1 1 1 3 3 1
1 ⁄2 × 1 ⁄2 4 ⁄4 6 ⁄4 4 ⁄4 1 ⁄2 × 1 ⁄2 2 ⁄16 × 2 ⁄16 1 ⁄32
1 3 5 1 3 3 1 3 1
1 1 3 1 1 5 3 1 1 ⁄2 3 ⁄4 1 ⁄8 3 ⁄2 6 ⁄4 4 1 ⁄4 1 ⁄2 2 ⁄16 1 ⁄32
2 × 1 ⁄2 4 ⁄2 6 ⁄4 4 ⁄4 2 × 1 ⁄2 2 ⁄8 × 2 ⁄16 1 ⁄32
15 1 5 1
1 7 1 5 5 1
2 4 1 ⁄16 4 7 ⁄2 4 2 2 2 ⁄8 1 ⁄32
2 × 2 4 ⁄2 6 ⁄8 4 ⁄2 2 × 2 2 ⁄8 × 2 ⁄8 1 ⁄32
1 5 1 1 3 1
1 3 1 1 3 3 1 3 4 ⁄2 2 ⁄16 5 9 5 ⁄2 2 ⁄2 3 3 ⁄4 1 ⁄32
3 × 1 ⁄2 5 6 ⁄4 4 ⁄4 3 ×1 ⁄2 3 ⁄4 × 2 ⁄16 1 ⁄32
1 1 3 1
1 1 3 5 1
4 5 3 6 10 ⁄2 6 ⁄2 3 4 4 ⁄4 1 ⁄32
3 × 2 5 7 ⁄4 4 ⁄2 3 × 2 3 ⁄4 × 2 ⁄8 1 ⁄32
3 3 3 1
3 × 3 5 8 ⁄8 5 3 × 3 3 ⁄4 × 3 ⁄4 1 ⁄32
1 1 1 3 5 1
4 × 2 5 ⁄2 7 ⁄4 4 ⁄2 4 × 2 4 ⁄8 × 2 ⁄8 1 ⁄32
NOTE 1—1 in. = 25.4 mm.
1 1 3 3 1
4 × 3 5 ⁄2 8 ⁄4 5 4 × 3 4 ⁄4 × 3 ⁄4 1 ⁄32
FIG. 16 Sanitary P Traps
1 3 1 3 3 1
4 × 4 5 ⁄2 9 ⁄8 5 ⁄2 4 × 4 4 ⁄8 × 4 ⁄8 1 ⁄32
NOTE 1—1 in. = 25.4 mm.
FIG. 14 Double-Branch Sanitary T
Size, C, D, E, F, G, H, ID, OD, Stop
in. in. in. in. in. in. in. in. in. Lug
Depth
Size, A, B, C, D, J, R, ID, OD, Stop Lug
(P), in.
in. in. in. in. in. in. in. in. in. Depth
1 3 15 7 3 1 1
...