Fiberglass Insulation

Wrapping hot-water and steam lines in a rigid fiberglass shell, this pre-formed pipe insulation cuts the heat lost from bare piping and stands up to far higher temperatures than foam. Each piece is molded into a 3-foot section shaped to the pipe's outside diameter, so it closes around the line and secures along the run for a clean, continuous cover. By holding heat inside the pipe, it trims wasted energy and helps maintain delivery temperature to fixtures and equipment, while covering hot surfaces that would otherwise pose a burn risk. Offered across a wide range of pipe sizes -- nominal, IPS, and copper -- in standard wall thicknesses, one product line insulates an entire system. Key Features: Rigid Fiberglass Pipe Cover -- Pre-formed fiberglass sections shaped to the pipe OD close around the line for a continuous insulated cover. Reduces Heat Loss -- Keeps heat in hot-water and steam lines, trimming energy waste and holding delivery temperature. Higher-Temp Than Foam -- Fiberglass withstands the elevated operating temperatures that foam pipe insulation cannot. Personnel & Energy Protection -- Covers hot pipe surfaces to guard against burns while conserving system energy. 3-Foot Sections, Many Sizes -- Standard 3' lengths in a wide range of nominal, IPS, and copper pipe sizes and wall thicknesses. Where to Use: Mechanical rooms & boiler plants -- Insulating hot-water and steam distribution piping to conserve heat. Commercial plumbing -- Covering hot-water supply and recirculation lines to save energy and protect surfaces. Building maintenance -- Replacing damaged or missing pipe insulation on heated lines. Available Sizes (SKU -- Size): 1003428 -- 1/2" x 3' 1003433 -- 3/4" x 3' 1003425 -- 1" x 3' 1010819 -- 1-1/4" x 3' 1003426 -- 1-1/2" x 3' 1003429 -- 2" x 3' 1003430 -- 2-1/2" x 3' 1003431 -- 3" x 3' 1003434 -- 4" x 3' 1003436 -- 5" x 3' 1003437 -- 6" x 3' 1003427 -- 8" x 3' 1016150 -- 3/4" IPS x 3', 1" FG wall 1016189 -- 1-1/2" IPS, 1" FG wall 1016152 -- 3" IPS x 3', 1" FG wall 1016241 -- 4" IPS x 3', 1" FG wall 1016155 -- 3/4" copper, 1" FG wall 1016157 -- 1" copper, 1" FG wall 1016180 -- 2" copper, 1" FG wall