brass or aluminum case, bronze tube, stainless steel ball valve, pressure
snubbers, and scale range for the intended service.
2.14.4
Flexible Ball Joints
**************************************************************************
NOTE: Drawings should show location and details of
each pipe expansion joint, amount of pipe movement,
and pipe anchors.
**************************************************************************
Carbon steel with polished steel balls capable of 360-degree rotation plus
15-degree angular flex movement, ASME B16.5 Class 150 flanged end
connections. Provide pressure molded composition gaskets designed for
continuous operation temperature of 135 degrees C 275 degrees F and joints
designed for minimum working pressure of ANSI Class 150.
2.14.5
Bellows Expansion Joints
**************************************************************************
NOTE: Drawings should show location and details of
each pipe expansion joint, amount of pipe movement,
and pipe anchors.
**************************************************************************
Provide Type 304 stainless steel corrugated bellows, reinforced with rings,
internal sleeves, external protective covers, and ASME B16.5, Class 150
flanged end connections. Provide limit stops to limit total movement in
both directions. Cold set the joints to compensate for temperature at time
of installation. Design to withstand 10,000 cycles over a period of 20
years, and for minimum working pressure of ANSI Class 150. Provide single
or double bellows expansion joint as indicated. Provide first pipe
alignment guide no more than four pipe diameters from the expansion joint.
Provide second pipe alignment guide no more than 14 pipe diameters from the
first guide.
2.14.6
Pipe Sleeves
Provide where piping passes through walls and floors. Grout sleeves in
position and location during construction. Provide sleeves of sufficient
length to pass through entire thickness of walls and floors with a minimum
25 mm one inch clearance between exterior of piping or pipe insulation, and
interior of sleeve or core-drilled hole. Seal space with a mechanically
adjustable segmented elastomeric seal. In fire walls and fire floors, calk
both ends of pipe sleeves or core-drilled holes with UL listed fill, void,
or cavity material.
2.14.6.1
Sleeves in Masonry and Concrete Walls and Floors
Provide hot-dip galvanized steel, ductile-iron, or cast-iron pipe sleeves.
Core drilling of masonry and concrete may be provided in lieu of pipe
sleeves provided that cavities in the core-drilled hole are completely
grouted smooth.
2.14.6.2
Sleeves in Other Than Masonry and Concrete Walls and Floors
Provide galvanized steel sheet sleeves having a minimum nominal weight of
43 Pa 0.90 psf.
SECTION 15194N
Page 23
Previous Page
