3.5.5.4
Metal to FRP Connections
Metal to FRP connections shall be made with flanged connections. Steel
flanges for bolting to FRP flanges shall be flat-faced type. Where
raised-face steel flanges are used, spacer rings shall be utilized to
provide a flat-face seat for FRP flanges. A full-face Buna-N gasket, 3.2
mm 1/8 inch thick with a shore hardness of 50 to 60, shall be used between
all flanged connections. The FRP flange shall have raised sealing rings.
Flat washers shall be used under all nuts and bolts on FRP flanges. Bolts
and nuts shall be of noncorrosive metal and torqued to not more than 135
newton meters 100 ft-lbs. Flanges shall not be buried. A concrete pit
shall be provided for all flanged connections.
3.5.6
Buried Fuel Piping
Buried fuel piping shall be in accordance with Section 13202 FUEL STORAGE
SYSTEMS.
3.6
CATHODIC PROTECTION
Cathodic protection shall be in accordance with Section 13202 FUEL STORAGE
SYSTEMS.
3.7
FIELD PAINTING
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NOTE: Where identification of piping is required by
the using service, this paragraph will be amplified
to include appropriate requirements either directly
or by reference to a separate section. Air Force
requirements are covered in AFM 88-15.
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All ferrous metals not specified to be coated at the factory shall be
cleaned, prepared, and painted as specified in Section 09900 PAINTS AND
COATINGS. Exposed pipe covering shall be painted as specified in Section
09900 PAINTS AND COATINGS. Aluminum sheath over insulation shall not be
painted.
3.8
FRAMED INSTRUCTIONS
Framed instructions under glass or in laminated plastic, including wiring
and control diagrams showing the complete layout of the entire system,
shall be posted where directed. Condensed operating instructions
explaining preventive maintenance procedures, methods of checking the
system for normal safe operation, and procedures for safely starting and
stopping the system shall be prepared in typed form, framed as specified
above for the wiring and control diagrams, and posted beside the diagrams.
The framed instructions shall be posted before acceptance testing of the
systems.
3.9
TESTS
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NOTE: Before occupancy of a facility the boilers
shall be inspected in accordance with the Code of
Boiler and Pressure Vessel Inspectors (BPVI) and the
American Society of Mechanical Engineers (ASME).
SECTION 15559A
Page 107
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