ASME A112.3.1 pdf download.Stainless Steel Drainage Systems forSanitary DWV, Storm,and Vacuum Applications, Above-and Below-Ground.
ASME A112.3.1 establishes material, dimensions, mechanical, and physical (including marking) requirements for socket-type, seam-welded, stainless steel pipe, fittings, joints, and drains for use in plumbing sanitary and storm, drain, waste, and vent (DWV), and vacuum systems. It includes minimum requirements for workmanship, dimensions, weld strength, pressure testing, and marking that incorporates a push-fit joining method.
NOTE: Material suitability for specific chemical applications shall he determined by a qualified engineer or ascertained from
the manufacturer.
1.2 Units of Measurement
Values are stated in the International System of units (SI) and in U.S. Customary (Inch) units. The SI units shall be considered as the standard.
1.3 Reference Standards
The following is a list of publications referenced in
this Standard. The latest edition shall apply.
ASME Bl.20.L Pipe Threads, General Purpose (Inch)
ASME B16.5, Pipe Flanges and Flange Fittings
Publisher: The American Society of Mechanical
Engineers (ASME), Three Park Avenue, New York.
NY 10016-5990; ASME Order Department.: 22 Law
Drive, P.O. Box 2300, Fairfield, NJ 07007-2300
ASTM D 412, Test Methods for Vulcanized Rubber and Thermoplastic Rubbers and Thermoplastic Elastomers — Tension
ASTM D 471, Test Methods for Rubber Property — Effect of Liquids
ASTM D 573, Test Method for Rubber Deterioration in an Air Oven
ASTM D 624, Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers
ASTM D 1149, Test Method for Rubber Deterioration — Surface Ozone Cracking in a Chamber
ASTM D 2240, Test Method for Rubber Property — Durometer Hardness
(3) maximum loss in elongation of 20% when tested
in accordance with ASTM D 412
(d) Water absorption (as measured by the change in mass of the specimen) shall not exceed 20% when tested in accordance with ASTM D 471 at 70°C ± 2°C for 116 H ± 1.5 H using distilled water as a standard test liquid.
(e) The clastorner shall exhibit no cracking at 2X magnification when tested in accordance with ASTM D 1149 (Specimen A) at 40°C ± 1°C for 100 H ± I H in an ozone concentration of 0.5 ppm (volume ± ratio).
‘f) The volume increase of the specimen due to
immersion in ASTM oil IMR 903 shall not be more than
80% when tested in accordance with ASTM D 471 at
40°C ± 2°C for 70 hr ± 0.5 hr.
3.6 Vacuum Test
A vacuum test shall be performed to establish suitability for use of the pipe system in land-based vacuum service, transportation-based vacuum service, and siphonic roof drainage systems. A test specimen shall be fabricated consisting of a minimum of three fitting joints. The pipes shall be restrained to the test appratus. The test specimen shall be subjected to a vacuum of
—82.7 kPa ± 1.7 kPa (—24.5 in. Hg ± 0.5 in. Hg) at a temperature of 20°C ± 3°C (68°F ± 5°F). Once the required vacuum is established, isolate the test assembly and monitor vacuum for 1 hr. Test shall be performed subsequent to any change in design or material applicable to the pipe joint.
3.6.1 Acceptance Criteria. The maximum allowable drop in vacuum is 7 kPa (2 in. of mercury).
4 MARKINGS
Pipe, fittings, and drains shall be permanently marked with the following:
(a) manufacturer’s name or registered trademark.
(6) SI or customary nominal size.
(c) date of manufacture (year. month, and day) on all pipe and fittings.
(d) Type of alloy pipe, Type 304 and Type 3161 shall be marked along the continuous length of pipe. Type 304 shall be marked to read ‘above-ground only”
5 FLOOR DRAIN DIMENSIONS
Floor drain dimensions shall be as shown in Tables 39 through 44.
ASME A112.3.1 pdf download
