armacell Arma-Chek D, Руководство по применению

Страница: 11 / 26

3 - Insulating with Arma-Chek D >> Using Pre-Covered Sheets APPLICATION MANUAL
D
© ARMACELL UK LTD.
Insulating with Arma-Chek D >> Using Pre-Covered Sheets
GENERAL PROCEDURES
Arma-Chek D pre-coated sheet material is available in a
continuous roll form and can be used for large bore pipe
work, ductwork, vessels and fl at surface application.
Pre-coated Arma-Chek D sheet can be fabricated as
you would with regular Armafl ex sheet, following addi-
tional recommendations contained in this manual. (For
more information on Armafl ex sheet application, refer to
the Armafl ex Installation Manual.)
For the insulation of pipes with pre-coated sheet mate-
rial the following rules apply due to the greater bending
stress on the adhesive seams:
Outer pipe - Ø Arma-Chek D (AF)
mm 13 mm 19 mm 25 mm
≥ 88.9

≥ 114.3
 
≥ 139.7
 
≥ 168.3
  
≥ 219.1
  
Outer pipe - Ø Arma-Chek D (NH)
mm 13 mm 19 mm 25 mm
≥ 88.9
≥ 114.3

≥ 139.7
 
≥ 168.3
 
≥ 219.1
  
* Tolerance of insulation thickness ± 1 mm
1. This table is valid for ambient conditions of 5°C. For lower applica-
tion temperatures the rigidity and tension of the sheet material can
increase thus lead-ing to other conditions than mentioned in this
table!
2. In case of insulating bends with pre-coated sheet-material, please
contact Armacell technical department.
ARMAFLEX ADHESIVE AND ITS USE ON
LARGE BORE PIPEWORK - OD > 600 mm
All-over adhesive coverage should be applied to both
the underlying surface of Arma-Chek D pre-coated sheet
and the pipework surface to which it is to be adhered
when the pipework/insulation outer diameter is greater
than 600 mm.
This should reduce the stress present on the main fi xing
seam and prevent the sheet from ”bellowing” by allow-
ing equal product weight distribution.
PIPEWORK OFFSET BEND ANGLES
1. Determine the dimension c.
2. Determine the circumference by placing a strip of
Arma-Chek D pre-coated sheet.
3. Transfer the measurements to the pre-coated
Arma-Chek D sheet material as
shown in the fi gure.
4. Completed Arma-Chek pipework bend angle made
of factory-coated Arma-Chek D sheet material.
D (9)