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Palmfox low-pressure insulation gasket kits have a great sealing and insulating design for all types of flanges. The sealing elements are embedded in a specially designed groove to prevent breaking when the bolt torque is uneven. The options for various working conditions are increased by the ability to use insulation gasket materials like Teflon/PTFE, Nitrile, EPDM, VITON, and Nitrile as sealing elements. |
The Palmfox low-pressure insulation kit is available in both full-face (Type E) and ring-style (Type F) configurations. This Palmfox I.Ks is used for almost all hydrocarbon and water service applications depending on the sealing element chosen.
When selecting a material, it is important to take into account both the temperature limit of the sealing element and the retainer.
For the temperature range and material compatibilities of the sealing gasket, refer to the chart.
Gasket Materials:
|
Dielectric Strength Volts/Mil |
Compressive Strength psi |
Water Absorption % |
Tensile Strength psi |
Operating Temp °F |
Operating Temp °C |
|
|
Plain Phenolic |
500 |
25,000 |
1.6 |
20,000 |
-65 to +220 |
-54 to +104 |
|
Neoprene faced Phenolic |
500 |
25,000 |
1.6 |
20,000 |
-65 to +175 |
-54 to +79 |
|
Reinforced PTFE |
350 |
2,300 |
0.01 |
1,450 |
-320 to +500 |
-196 to +260 |
|
G-7 silicone glass |
350 |
40,000 |
0.07 |
25,000 |
-320 to +450 |
-196 to +232 |
|
G-10 epoxy glass |
550 |
50,000 |
0.1 |
45,000 |
-320 to +280 |
-196 to +138 |
|
G-11 epoxy glass |
550 |
50,000 |
0.1 |
43,000 |
-320 to +349 |
-196 to +176 |
Temperature Range of Sealing Materials:
|
Operating Temp °F |
Operating Temp °C |
|
|
Nitrile |
-40 to +250 |
-40 to +121 |
|
Viton |
-20 to +350 |
-29 to +177 |
|
Teflon/PTFE |
-320 to +450 |
-195 to +232 |
|
Neoprene |
-40 to +250 |
-40 to +121 |
|
EPDM |
-40 to +250 |
-40 to +121 |
Materials of different parts for Insulation Gasket Kits:
|
Isolating Sleeves |
Isolating Washers |
Steel Washers |
|
G7 |
G7 |
ZPS (Zinc Plated Carbon Steel) |
|
G10 |
G10 |
XPX (Xylan Coated Carbon Steel) |
|
G11 |
G11 |
SS (Stainless Steel) |
|
Mylar |
Phenolic |
|
|
Nomex |
