The requirement
A flange sits close to a wall and an overhead tray. The buyer can reach the bolts from one side but cannot lift a conventional full-depth cover vertically.
How the design was approached
Ask for radial and axial dimensions, a photo with scale and the available bolt withdrawal path. Compare a split cover with accessible straps to a one-piece wrap that closes on the working side.
Construction and fit
For dry hot service, price a 25 mm fibrous-core option with coated glass-fibre facing and a thinner aerogel alternative at the same thermal objective. Position the closure and end collars on an annotated drawing.
Acceptance checks
At trial fit, check that the cover can be removed along the agreed path, both bolt faces are accessible and adjacent insulation can remain in place.