Technical specifications of insulation on union models
(purchase separately, field install)
Material: closed-cell expanded PE-X
Thickness: 13/16" (20 mm)
Density: - inner part: 1.9 lb/ft
3
(30 kg/m
3
)
-
outer part: 3.1 lb/ft
3
(50 kg/m
3
)
Conductivity (ISO 2581): at 32°F (0°C): 9 BTU.in/hr.ft
2
.°F (0.038 W/(m.K)
at -40°F (-40°C); 11 BTU.in/hr.ft
2
.°F (0.045 W/(m·K)
Coefficient of resistance to the diffusion of vapor: > 1,300
Temperature range: 32–210°F (0–100°C)
Fire resistance (DIN 4102): class B2
Technical specifications of insulation, flanged versions to 4"
Internal part
Material: rigid closed cell expanded polyurethane foam
Thickness: 2 3/8" (60 mm)
Density: 2.8 lb/ft3 (45 kg/m3)
Thermal conductivity: 6 BTU.in/hr.ft2.°F (0.023 W/(m.K))
Temperature range: 32–220°F (0–105°C)
Outer part
Materials: embossed aluminum
Thickness: 7.0-mil (0.7 mm)
Reaction to fire (DIN 4102): class 1
Head covers
Heat formed materials: PS
4
