Design and Construction Handbook - Los Angeles World Airports

Guide Specification
D. Keep open ends of pipe free from scale and dirt. Protect open ends with temporary plugs or
caps.
E. Field verify that connection to existing piping systems sizes, locations, and invert are as
required.
F. Establish elevations of buried piping with not less than allowed per code.
G. Establish minimum separation of from other piping services in accordance with code.
3.2 PIPING APPLICATION
A. Flanges and unions may be used on aboveground pressure piping, unless otherwise indicated.
B. Aboveground, soil and waste piping NPS 4 and smaller shall be the following:
1. Hubless cast-iron soil pipe and fittings; heavy-duty shielded, stainless-steel couplings;
and hubless-coupling joints.
2. Steel pipe, drainage fittings, and threaded joints.
3. Stainless-steel pipe and fittings, gaskets, and gasketed joints.
4. Copper DWV tube, copper drainage fittings, and soldered joints.
5. Dissimilar Pipe-Material Couplings: Shielded, nonpressure pipe couplings for joining
dissimilar pipe materials with small difference in OD.
C. Aboveground, soil and waste piping NPS 5 and larger shall be the following:
1. Hubless cast-iron soil pipe and fittings; heavy-duty shielded, stainless-steel couplings;
and hubless-coupling joints.
2. Steel pipe, drainage fittings, and threaded joints.
3. Dissimilar Pipe-Material Couplings: Shielded, nonpressure pipe couplings for joining
dissimilar pipe materials with small difference in OD.
D. Aboveground, vent piping NPS 4 and smaller shall be the following:
1. Hubless cast-iron soil pipe and fittings; heavy-duty shielded, stainless-steel couplings;
and hubless-coupling joints.
2. Steel pipe, drainage fittings, and threaded joints.
3. Stainless-steel pipe and fittings gaskets, and gasketed joints.
4. Copper DWV tube, copper drainage fittings, and soldered joints.
a. Option for Vent Piping, NPS 2-1/2 and NPS 3-1/2: Hard copper tube, Type M;
copper pressure fittings; and soldered joints.
5. Galvanized steel piping for horizontal offsets of vent headers.
E. Aboveground, vent piping NPS 5 and larger shall be the following:
1. Service class, cast-iron soil pipe and fittings; gaskets; and gasketed joints.
2. Steel pipe, drainage fittings, and threaded joints.
3. Galvanized steel piping for horizontal offsets of vent headers.
FACILITY SANITARY SEWERAGE
22 13 00 - 15 Plumbing Systems