SECTION 033000 - CAST-IN-PLACE CONCRETE

Sludge Treatment Project Engineered Container Retrieval and Transfer System January 2012
3.3 COLD BENDING OF PIPE OR TUBE
A. Fabricate pipe or tube bends in accordance with TPA-CBS-98.
B. Fabricator shall submit a detailed procedure for bending, specifying method used, inspection,
wall thickness measurement, and documentation.
C. The pipe or tube material to be cold bent shall comply with the specific piping class requirements.
For production bending, the fabricator may select the next higher schedule to offset anticipated
thinning as approved by the Buyer. Bending is restricted to bends having a minimum center-line
bend radius of 3 times the pipe nominal outside diameter.
D. Lubricants used for bending operations must be free of halogens, sulfur, and low-melting-point
metals.
E. Qualification Testing
1. Before any production bending is done, the following bend qualification testing shall be
done by the Fabricator as required by Purchase Order.
2. Stainless Steel — Following cold bending, samples shall be taken from Intrado and Extrado
for Stress-Corrosion Testing in accordance with ASTM G 123.
3. Before any testing is to commence, the Fabricator shall present a detailed test procedure
to the Buyer for review and approval.
3.4 VALVE INSTALLATION
A. Provide access where valves and other equipment are not exposed.
B. Install valves with stems upright or horizontal, not inverted.
C. Install the valve actuator and valve stem extensions in accordance with the drawings and
manufacturer’s instructions.
D. Install check valves to maintain correct direction of flow as indicated on the system P&IDs.
E. Install pressure regulators on piping where reduced pressure is required.
F. Install pressure relief valve and full-size discharge piping to designated drains.
3.5 HANGER AND SUPPORT INSTALLATION
A. Comply with requirements in Section 220548, Vibration and Seismic Controls for Plumbing
Piping and Equipment, for seismic-restraint devices.
Contract 44577 KW Annex - Rev. E 44577-CSI-SPEC-001 431510 - 23