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Gray fiberglass insulated pipe jacket, 12 by 12 inches, 3 inches thick

Unitherm

Unitherm IW1212 12 x 12 in 3 in fiberglass insulated pipe jacket

SKU CH-T8YY-97GVV

A 12 x 12 inch fiberglass insulated pipe jacket rated for 900 °F with a quick-release flap and wire-twist fastening

  • ColorGray
  • TypePipes, Valves & Fittings
  • Withstands 900 °F continuous heat with silicone-coated fiberglass cloth
  • Fits 12 in by 12 in straight pipe sections up to 6 in circumference
  • Quick-release fabric flap and wiretwists allow fast installation and removal
  • 3 in thick fiberglass and mineral wool insulation rated R-0.48
  • Gray industrial jacket meets OSHA standards for workplace safety

Industrial pipe insulation jacket

The Unitherm IW1212 is a fiberglass and mineral wool insulated pipe jacket designed for straight pipe sections in industrial settings. It measures 12 inches by 12 inches with a 3 inch wall thickness and fits circumferences from 0 to 6 inches. The gray silicone coated fiberglass cloth facing provides a durable outer layer for demanding environments.

Sustained high temperature performance

Rated for a maximum ambient temperature of 900 degrees Fahrenheit, this jacket maintains its insulating properties under continuous heat exposure rather than only during short bursts. The R value of 0.48 indicates its thermal resistance level for steady state conditions. Quick release fabric flaps and wiretwists allow the jacket to be removed and refitted without degrading the insulation during routine maintenance cycles.

OSHA compliance and coverage limits

The product meets OSHA standards for industrial insulation, confirming it satisfies regulatory requirements for workplace safety. Its 12 by 12 inch cover dimensions set a fixed insulation area per jacket, so longer pipe runs require multiple units. The universal valve type designation means it accommodates various fitting configurations within the stated circumference range.

Highlights

  • Withstands 900 °F continuous heat with silicone-coated fiberglass cloth
  • Fits 12 in by 12 in straight pipe sections up to 6 in circumference
  • Quick-release fabric flap and wiretwists allow fast installation and removal
  • 3 in thick fiberglass and mineral wool insulation rated R-0.48
  • Gray industrial jacket meets OSHA standards for workplace safety

Specifications

BrandUNITHERM
ColorGray
TypePipes, Valves & Fittings

Questions about this item

How hot does the 900-degree-rated silicone-coated fiberglass cloth surface get when the jacket runs at full temperature all day?

The jacket is rated for a maximum ambient temperature of 900 degrees F, so the outer cover is designed to withstand continuous exposure at that level without degrading.

What pipe size must I already have for the 12-inch by 12-inch cover with a 6-inch maximum circumference to fit?

The jacket accommodates straight pipe sections up to 6 inches in circumference, which corresponds to roughly a 2-inch nominal pipe size.

Will the quick-release fabric flap and wiretwists fasten securely on an older pipe that has surface corrosion or uneven lagging?

The fastening system uses adjustable wiretwists and a fabric flap, allowing it to cinch down on irregular surfaces such as corroded or previously lagged pipe.

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