be bent are cured.
3.2.4
Open Ends of the Pipe System
Close the open ends of the pipe system at the end of each day's work or
when work is not in progress and keep closed until work is resumed.
3.3
MANHOLES AND WALL PENETRATIONS
Where an FRP pipe penetrates manhole, concrete, masonry, or metal walls,
provide a Schedule 40 steel pipe sleeve 50 mm 2 inches larger than the pipe
in accordance with ASTM A 53. Each steel pipe sleeve shall be given a coat
of bituminous paint conforming to MIL-C-18480. Calk opening between sleeve
and pipe with sealing compounds conforming to ASTM C 920, Type S or M,
Grade NS, Class 25, use M or FS TT-S-001543, Type Non-Sag, Class A.
Install in-line thrust or anchor blocks at least 1.50 meters 5 feet outside
of manhole or wall penetration in accordance with paragraph entitled
"Thrust Blocks."
3.4
LINE VALVES
Install line valves with stems vertically up. Provide individual supports
and anchors for line valves. Sealed valve box or pit shall prevent soil
and moisture contact with valve.
3.5
FLUSHING
Prior to hydrostatic testing, flush the FRP pipe system with water until
piping is free of dirt and foreign matter.
3.6
FIELD INSPECTION AND TESTS
Furnish everything required for performing inspections and tests. Correct
defects and repeat the respective inspections and tests.
3.6.1
Test Gages
Use pressure test gages certified as being accurate to within one percent
of their full scale. Use gages with maximum scale between 1 1/2 and 2
times the test pressure.
3.6.2
Field Inspections
Prior to initial operation, inspect piping system for conformance to
drawings, specifications, and manufacturer's submittals; submit daily
written reports, as specified under "Contractor's Responsibility."
3.6.3
Field Tests
3.6.3.1
Initial Pneumatic Tests
Pneumatically test all FRP pipe and fittings and all FRP pipe to metal
fittings at a pressure of 103 kPa (gage) 15 psig for at least 4 hours
during which time brush each joint with a soap solution and examine for
leaks. Maintain 103 kPa (gage) 15 psig pressure throughout test period.
The piping may be tested in sections, but test the entire installation at
103 kPa (gage) 15 psig prior to the hydrostatic test. Contractor shall
furnish all necessary air compressors, gages, and other equipment necessary
for carrying out the tests. No taps in the line are permitted. Isolate
SECTION 15191N
Page 10
Previous Page
