in accordance with paragraph entitled "Electrical Support Equipment."]
d.
Coolant solution shall be a mixture of clean water and ethylene glycol,
50 percent by volume each. Provide an anti-freeze solution tester
suitable for the mixture.
[2.2.3.2
Jacket Coolant Water Piping Systems
**************************************************************************
NOTE: Include the following paragraph when
providing cooling system with a remote radiator.
**************************************************************************
Field installed jacket coolant water piping shall conform to the following:
a.
Piping: Provide seamless steel pipe, Schedule 40, conforming to ASTM A
53/A 53M, Grade A.
b.
Fittings and Flanges: Fittings, 40 mm 1 1/2 inches or smaller, shall
be malleable iron conforming to ASME B16.3 for Class 300 threaded type.
Fittings, 50 mm 2 inches and larger, shall be steel buttwelding
conforming to ASME B16.9. Utilize either ASME B16.1 or Class A of ASTM
A 126 for Class 125 cast-iron flanged fittings. Flanges shall be Class
150 slip-on forged steel welding flanges in accordance with ASME B16.5,
with material in accordance with ASTM A 181/A 181M, Grade I. Provide
flat face flanges for connecting to Class 125 standard cast-iron
valves, fittings, and equipment connections.
c.
Valves
1.
Gate Valves: For valves, 40 mm 1 1/2 inches and smaller, provide
double disk, rising stem, inside screw, union bonnet type, Class
125 bronze material conforming to MSS SP-80. For valves, 50 mm 2
inches and larger, provide double-disk, parallel seat type,
hydraulic-rated, Class 125, outside screw and yoke type with
flanged ends and bronze trim conforming to MSS SP-70. Provide
stem packing of material compatible with the system coolant.
2.
Globe Valves: For valves, 40 mm 1 1/2 inches and smaller, provide
rising stem, inside screw, union bonnet type, Class 125 bronze
valves conforming to MSS SP-80. For valves, 50 mm 2 inches and
larger, provide Class 125 cast iron, flanged ends, bronze trim
globe valves conforming to MSS SP-85. Valves shall have renewable
composition or cast iron discs compatible with the system coolant.
3.
Check Valves:
MSS SP-71 or MSS SP-80, swing check type.
d.
Hangers and Supports:
MSS SP-58 and MSS SP-69.
**************************************************************************
NOTE: Include on the drawings a detail of the
cooling piping penetrations through walls and roofs
showing the piping sleeve and exterior flashing.
**************************************************************************
e.
Piping Sleeves: Provide where piping passes through masonry or
concrete walls, floors, roofs, and partitions. Place sleeves during
construction. Unless indicated otherwise, pipe sleeves shall comply
with following requirements: Sleeves in outside walls below and above
SECTION 16237N
Page 28
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