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Normas ASTM – AENOR
ASTM A74-08a

ASTM A74-08a

Standard Specification for Cast Iron Soil Pipe and Fittings

Fecha:
2010-12-31 /Historical
Superseeded by:
Abstract:

This specification covers cast gray iron soil pipe and fittings for use in gravity flow plumbing, drain, waste and vent sanitary, and storm water applications. These pipe and fittings are not intended for pressure applications. The cast iron shall be produced by an established commercial method that provides control over chemical and physical properties. Castings shall be sound, true to pattern, and of compact close grain that permits drilling and cutting by ordinary methods and its interior surface shall be reasonably smooth and free from defects. Ferrous scrap, pig iron, and any recycled ferrous material to be used in the melting operation shall be screened for radioactivity. Tension test shall include breaking load, machined diameter, and tensile strength. Chemical test shall conform to the chemical composition requirements prescribed for phosphorous, sulfur, chromium, titanium, aluminum, lead, and carbon equivalent. Dimension requirements for hub, spigot, barrel, grooves, water seal and trap, and threads of the pipe and fittings are detailed. The pipe and fittings shall be uniformly coated with a material suitable for the purpose.

Scope:

1.1 This specification covers cast iron soil pipe and fittings for use in gravity flow plumbing, drain, waste and vent sanitary, and storm water applications. It establishes standards covering material, manufacture, mechanical and chemical properties, coating, test methods, inspection, certification, product markings, dimensions, and dimensional tolerances for extra heavy and service cast iron soil pipe and fittings. These pipe and fittings are not intended for pressure applications as the selection of the proper size for sanitary drain, waste, vent, and storm drain systems allows free air space for gravity drainage.

1.2 This specification covers pipe and fittings of the following patterns and, when so designated, shall apply to any other patterns that conform with the applicable requirements given in this specification.

1.2.1 Pipe:


Tables
Extra heavy, 2½ ft (0.75 m), 3½ft (1.0 m), 5 ft (1.5 m), 10 ft (3.0 m) lengths
1, 2
Service, 2½ ft (0.75 m), 3½ft (1.0 m), 5 ft (1.5 m), 10 ft (3.0 m)
1, 2
Outside dimensions (for detailing)
X1.1

1.2.2 Fittings:


Tables
¼ bends; long ¼ bends
3, 4
¼ bends, long low-hub
5
¼ bends, low heel; high heel
6, 7
¼ bends, short sweep; long sweep
8
¼ bends, reducing long sweep
9
1/5 bends
10
1/6 bends
10
1/8 bends; long 1/8 bends
11
1/16 bends
11
Y branches
12, 13
Y branches, combination 1/8 bends, single
14
Y branches, combination 1/8 bends, double
14
Sanitary T branches, single
15
Sanitary T branches, double
15
Sanitary T branches, cleanout
16
Tapped sanitary T branches, single
17
Tapped sanitary T branches, double
17
T branches, single and double
18
Tapped T branches, single
19
Tapped T branches, double
19
T branches, cleanout
20
-45° offset fitting
21
Double hubs
22
Long double hubs
22
Reducers
23
Increasers
24, 25
P traps
26, 27
Deep seal P traps
28
Running traps
29
Screw plugs (brass)
30
Blind plugs
31
Iron-body ferrules
32
Side inlets
Fig. 3
Closet bends
33
Tapping bosses
34
Reducing ¼ bend SV
35
Combination Y and 1/8 bend
36
H branch fitting
37

1.3 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.

Keywords:
cast iron; fitting; hub and spigot pipe; pipe; soil pipe; Cast iron soil pipe/fittings--specifications; Fittings; Iron pipe/fittings--specifications
79,76
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