ASTM A 536, Grade 65-45-12. Gasket shall be the flush type that fills the
entire cavity between the fitting and the pipe. Nuts and bolts shall be
heat-treated steel conforming to ASTM A 183 and shall be cadmium plated or
zinc electroplated.
2.5.1.4
Flanges
Flanges shall conform to NFPA 13 and ASME B16.1. Gaskets shall be
non-asbestos compressed material in accordance with ASME B16.21, 1.6 mm
1/16 inch thick, and full face or self-centering flat ring type.
2.5.1.5
Bolts, Nut, and Washers
Bolts shall be [squarehead conforming to ASME B18.2.1] [ASTM A 449, Type
[1] [2]] and shall extend no less than three full threads beyond the nut
with bolts tightened to the required torque. Nuts shall be [hexagon type
conforming to ASME B18.2.2] [ASTM A 193/A 193M, Grade 5] [ASTM A 563M ASTM
A 563, Grade [C3] [DH3]]. Washers shall meet the requirements of ASTM F
436M ASTM F 436. Flat circular washers shall be provided under all bolt
heads and nuts.
2.5.2
Copper Tube Components
2.5.2.1
Copper Tube
Copper tube shall conform to ASTM B 88M ASTM B 88, Types L and M.
2.5.2.2
Copper Fittings and Joints
Cast copper alloy solder-joint pressure fittings shall conform to ASME
B16.18 and wrought copper and bronze solder-joint pressure fittings shall
conform to ASME B16.22 and ASTM B 75M ASTM B 75. Cast copper alloy
fittings for flared copper tube shall conform to ASME B16.26and ASTM B 62.
Brass or bronze adapters for brazed tubing may be used for connecting
tubing to flanges and to threaded ends of valves and equipment. Extracted
brazed tee joints produced with an acceptable tool and installed as
recommended by the manufacturer may be used. Grooved mechanical joints and
fittings shall be designed for not less than 862 kPa 125 psig service and
shall be the product of the same manufacturer. Grooved fitting and
mechanical coupling housing shall be ductile iron conforming to ASTM A 536.
Gaskets for use in grooved joints shall be molded synthetic polymer of
pressure responsive design and shall conform to ASTM D 2000 for circulating
medium up to 110 degrees C 230 degrees F. Grooved joints shall conform to
AWWA C606. Coupling nuts and bolts for use in grooved joints shall be
steel and shall conform to ASTM A 183.
2.5.3
Plastic Piping Components
**************************************************************************
NOTE: See Note in Paragraph 2.5 for restrictions on
use of plastic piping. When plastic pipe is not
permitted, delete this paragraph.
**************************************************************************
2.5.3.1
Plastic Pipe
Plastic pipe shall be chlorinated polyvinyl chloride (CPVC) conforming to
ASTM F 442/F 442M, 1207 kPa 175 psi rating and listed in UL Fire Prot Dir
for use in wet pipe sprinkler systems.
SECTION 13930A
Page 19
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