2.2.3
Polyvinyl Chloride (PVC) Pipe and Fittings
PVC pipe and fittings shall conform to ASTM D 1785, Schedule [40] [80]
[120], or ASTM D 2241, SDR [2l] [26] [32.5]. Joints shall be solvent weld
joints. Solvent weld joints shall conform to ASTM D 2564.
2.2.4
Stainless Steel Tubing and Fittings
Unless shown or specified otherwise, stainless steel tubing shall be in
accordance with the following.
2.2.4.1
Stainless Steel Tubing
Stainless steel tubing shall conform to ASTM A 778. Wall thicknesses shall
be as follows: 250 mm 10 inches diameter and less shall be 1.5875 mm
0.0625 inch (16 gauge) thick; 300 mm 12 inches diameter shall be 1.9837 mm
0.078 inch (14 gauge) thick; 350 mm 14 inches through 450 mm 18 inches
diameter shall be 2.7788 mm 0.109 inch (12 gauge) thick; 500 mm 20 inches
diameter shall be 3.1750 mm 0.125 inch (11 gauge) thick; 600 mm 24 inches
diameter shall be 3.5712 mm 0.140 inch (10 gauge) thick.
2.2.4.2
Stainless Steel Tubing Fittings
Stainless steel tubing fittings shall conform to ASTM A 774/A 774M, grade
and schedule or wall thickness as specified for tubing.
2.2.4.3
Stainless Steel Tubing Joints
Stainless steel tubing joints shall be shop welded full penetration butt
joints or Van Stone joints using angle face rings with backing flanges
drilled in accordance with ASME B16.5, Class 125.
2.2.5
Pipe Hangers and Supports
Pipe hangers and supports shall conform to MSS SP-58 and MSS SP-69.
2.2.6
Valves
2.2.6.1
Butterfly valves and operators shall conform to AWWA C504, air service
class [25A] [_____], flanged or mechanical joint ends as required.
2.2.6.2
Gate valves shall conform to AWWA C500, flanged or mechanical joint ends as
required.
2.2.6.3
Globe valves shall conform to MSS SP-80, Type 3, Class 150.
2.2.6.4
Relief and Unloading Valves
Combination relief and unloading valve shall be [carbon steel] [_____]
body, shall allow blower unloading for startup, and shall be set for
pressure relief at [_____] kPa psig.
SECTION 11375A
Page 11
Previous Page
