Specifications - Lord and Son Construction, Inc.

Provide copper tubing and fittings with a ANSI/ASME Class 125 service
rating, which for 150 degrees F., the pressure rating is 175 psig.
2.3.1 Tube
Use copper tube conforming to ASTM B 88, Type L or M for aboveground tubing,
and Type K for buried tubing.
2.3.2 Fittings and End Connections (Solder and Flared Joints)
Wrought copper and bronze solder joint pressure fittings, including unions
ands flanges, shall conform to ASME B16.22 and ASTM B 75. Provide adapters
as required. Cast copper alloy solder-joint pressure fittings, including
unions and flanges, shall conform to ASME B16.18. Cast copper alloy
fittings for flared copper tube shall conform to ASME B16.26 and ASTM B 62.
ASTM B 42 copper pipe nipples with threaded end connections shall conform to
ASTM B 42.
Copper tubing of sizes larger than 4 inches shall have brazed joints.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 may be used if produced with an acceptable tool
and installed in accordance with tool manufacturer's written procedures.
2.3.3 Grooved Mechanical Connections For Copper
Rigid grooved mechanical connections may only be used in serviceable
aboveground locations where the temperature of the circulating medium does
not exceed 230 degrees F. Flexible grooved connections shall be used only
as a flexible connector with grooved pipe system. Unless otherwise
specified, grooved piping components shall meet the corresponding criteria
specified for the similar welded, flanged, or threaded component specified
herein.
Each grooved mechanical joint shall be a system, including coupling housing,
gasket, fasteners, all furnished by the same manufacturer. Joint
installation shall be in compliance with joint manufacturer's written
instructions.
Grooved fitting and mechanical coupling housing shall be ductile iron
conforming to ASTM A 536. Provide gaskets for use in grooved joints shall
constructed of molded synthetic polymer of pressure responsive design and
shall conform to ASTM D 2000 for circulating medium up to 230 degrees F.
Provide grooved joints in conformance with AWWA C606.
2.3.4 Solder
Provide solder in conformance with ASTM B 32, grade Sb5, tin-antimony alloy.
Solder flux shall be liquid or paste form, non-corrosive and conform to ASTM
B 813.
2.3.5 Brazing Filler Metal
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