Clean the pipe following the pipe cleaning procedure explained in Note #2. Clean the pipe for the length of the shoe plus 3 inches on either side of where the shoe will be installed. Put the slide plate on the structural support member and center it on the centerline of the pipe. Remove the slide plate and check the surface of structural support member below for bumps or high points. Remove any that are found. Replace the slide plate and weld the mounting plate to the structural support member as shown. Protect PTFE, 25% glass filled, with duct tape or equivalent during welding. Clean the bottom half of the insulation. For Cold Shoes, the polyurethane should be prepared for bonding by sanding it lightly with 60 grit sandpaper.
For Cold Shoes apply .042 to .080 inches of a wet film thickness of adhesive (Fosters 82-77) to the inside of the insulation, as per manufacturer’s instructions. Slide the assembly under the pipe into position above the slide plate which is mounted on the structural support member (See Note #1 for the desired location). Note that field trimming of the calcium silicate may be required for a proper fit to the pipe circumference. Lower the pipe onto the bottom half of the saddle.
Clean the bottom half of the insulation. For Cold Shoes, the polyurethane should be prepared for bonding by sanding it lightly with 60 grit sandpaper. For Cold Shoes apply .042 to .080 inches of a wet film thickness of adhesive (Fosters 82-77) to the inside of the insulation, as per manufacturer’s instructions. Slide the assembly under the pipe into position above the slide plate which is mounted on the structural support member (See Note #1 for the desired location). Note that field trimming of the calcium silicate may be required for a proper fit to the pipe circumference. Lower the pipe onto the bottom half of the saddle.
Align the clamping holes of the top half to the bottom half of the saddle, and press them together. Seal longitudinal joints and the overlapping ends of the jacket with a suitable sealant such as Foster’s Flextra 95-50 or equivalent. Install the clamping bolts, lock washers and nuts. Hand tighten first, check the alignment of the saddle and position. When found correct; tighten the nuts applying required torque specified in the drawing.
NOTES:
1. Cold Setting:
• For an axial cold setting, position the support assembly such that after the support has moved, the centerline of the slide plate approximately matches the centerline of the support.
• For lateral cold setting, center the support assembly over the slide plate.
2. Pipe Cleaning Procedure:
• The pipe shall be cleaned before the application of the adhesive. Carbon steel pipe should be solvent cleaned and allowed to dry. Stainless steel and high alloy pipes which have been primed shall have the primer roughened with a hand tool or power tool, followed by solvent cleaning.
• When used in cryogenic applications (below –40oF), the metal surface must be sandblasted or primed with polyamide epoxy primer.
Maintenance & Storage Instructions for Insulated Pipe Supports (Cold Shoes)
1. Do not unpack the cold shoe unless the support is ready to install.
2. Store all cold shoes at a site where the cold shoe components are not exposed to ultraviolet rays.
3. Coat all exposed surfaces of high-density polyurethane foam with monolar mastic in a well-ventilated area.
4. Wrap all cold shoes and Polyurethane bases with black plastic.
5. Protect all cold shoes from outside moisture, especially rainwater.
Recommended Storage – Covered area, preferably warehouse or at minimum, under a tarp, above ground left in original packing until use.