IFG 5500 Gaskets
IFG 5500 Gaskets.
An asbestos-free gasket sheet made from inorganic fibres and a nitrile binder, rated to 288°C continuous and 83 bar for steam, refrigerants, water and oils.
|
Material |
Inorganic fibres with nitrile binder, asbestos-free |
|
Colour |
Grey |
|
Fluid services |
Saturated steam, most refrigerants, water, oils, gasoline and aliphatic hydrocarbons |
|
Temperature range |
-73°C to +288°C continuous, +427°C absolute maximum |
|
Maximum pressure |
83 bar |
|
P × T (max.) |
14,000 bar × °C (1/32″ and 1/16″) / 9,600 bar × °C (1/8″) |
|
Compressibility (ASTM F36) |
10% average |
|
Recovery (ASTM F36) |
50% |
|
Creep relaxation (ASTM F38) |
15% |
|
Tensile strength, across grain (ASTM D1708) |
10 N/mm² |
|
Density (ASTM F1315) |
1.6 g/cm³ |
|
Thermal conductivity (ASTM F433) |
0.43 to 0.53 W/m·K |
|
Leakage, Fuel A (ASTM F37B) |
0.30 ml/hr at 3.5 N/mm² gasket load |
|
Leakage, nitrogen (ASTM F37B) |
1.0 ml/hr at 20.7 N/mm² gasket load |
|
Leakage, nitrogen (DIN 3535) |
0.05 cc/min at 32 N/mm² gasket load and 40 bar |
|
Preferred assembly stress |
41 to 69 N/mm² |
|
Specifications met |
ABS and fire safe |
Every gasket is cut to order, from single prototypes through to full production runs. Send us your drawing or dimensions and we will come back with a quotation.
Why choose IFG 5500 for steam and fluid sealing?
IFG 5500 is an inorganic fibre sheet with a nitrile binder, and it’s asbestos free. The nitrile binder gives it a wide service range for a single sheet material: saturated steam, most refrigerants, water, oils, gasoline and aliphatic hydrocarbons are all listed. The continuous maximum temperature is 288°C, with an absolute maximum of 427°C, and the pressure limit is 83 bar. The minimum temperature rating is -73°C, which the data sheet describes as conservative.
Fitted properly, it holds on well. Compressibility averages 10% with 50% recovery, and creep relaxation is 15%, so the joint keeps most of its bolt load over time. Tensile strength across the grain is 10 N/mm². The sheet meets ABS (American Bureau of Shipping) specifications and is listed as fire safe, so it suits marine installations as well as general industrial work.
Thickness and assembly both affect the working limits. The maximum pressure × temperature rating is 14,000 bar × °C for 1/32″ and 1/16″ sheet and falls to 9,600 bar × °C for 1/8″ sheet, and 1/16″ is strongly preferred. The minimum recommended assembly stress is about 33 N/mm² (4,800 psi), with 41 to 69 N/mm² (6,000 to 10,000 psi) preferred, and the bolts or studs should be re-torqued before the joint is pressurised.
For further information on our services or to discuss your requirements, contact us today.
