Armacell bst03412 Split Tube Pipe Insulation 3/4 in

Product Description

The ARMACELL bst03412 is a split tube pipe insulation designed for insulating 3/4-inch nominal pipe. The split construction allows the insulation to be opened lengthwise and wrapped around existing pipe runs without disconnecting fittings or couplings. A self-sealing lap seal holds the insulation closed after installation. Each box contains 40 pieces. This product is used by plumbers, HVAC technicians, and mechanical insulation contractors on both new construction and retrofit projects where pipe insulation is required.

The bst03412 is suited for residential and light commercial applications where pipe insulation is needed on 3/4-inch pipe. The split design makes it practical for retrofit work where pipe sections are already in place. The lap seal closure eliminates the need for separate adhesive on the seam, speeding up installation. Common applications include chilled water lines, domestic cold water piping, and refrigerant suction lines where condensation control and energy efficiency are priorities.

Key Features

• Split tube design allows installation over existing pipe without disconnecting fittings
• Self-sealing lap seal closure requires no additional adhesive on the longitudinal seam
• Sized for 3/4-inch nominal pipe inner diameter
• Sold in a box of 40 pieces for multi-pipe or full-system jobs
• Suitable for condensation control on cold piping and thermal retention on hot piping

Compatibility

Designed as an OEM-style replacement and standard-fit insulation for 3/4-inch nominal pipe systems in residential and light commercial mechanical applications.

Installation Notes

Installation is typically performed by licensed plumbers or HVAC technicians as part of mechanical insulation work governed by local energy codes and ASHRAE 90.1 requirements. Open the split tube along its length, seat it firmly around the pipe, and press the lap seal closed along the full length of the section. Ensure pipe surfaces are dry and free of dirt or oil before sealing to achieve a secure bond. Do not stretch or compress the insulation during installation, as this reduces effective wall thickness and thermal performance.

Technical Specifications

• Pipe Inner Diameter: 3/4 inches
• Closure Type: Self-sealing lap seal
• Quantity per Box: 40 pieces
• UNSPSC Code: 40183001

Standard Information

• Brand: ARMACELL
• Manufacturer Part Number: bst03412