Image shown is representative and may differ from the actual product in size, proportions, and color shade
4.500 in
(114.30 mm)
7.120 in
(180.85 mm)
1/2"
FFKM Parker FF202-90 Ring Gasket, Size: 300#-4"-RN-1/2"
Material: FFKM Parker FF202-90 Ring Gasket
Size: 300#-4"-RN-1/2" Ring Gasket
Part Number: FF202-90-300#-4"-RN-1/2"
Parker Seal® (Parker)
Parofluor® (Parker)
FF202-90
FFKM (Perfluoroelastomer)
90
Shore A
Extrusion Resistant
Low Compression Set
Color: Black
Detailed Description
FF202-90-300#-4"-RN-1/2" is a Black, 90 Shore A, FFKM (Perfluoroelastomer) Ring Gasket made from Parker Seal® (Parker) and Parofluor® (Parker). It is a 90 durometer FFKM (Perfluoroelastomer). [Parker Seal® (Parker) and Parofluor® (Parker) FF202-90 is manufactured with the following features & specifications: Extrusion Resistant, Low Compression Set. FF202-90-300#-4"-RN-1/2" is size 300#-4"-RN-1/2" Ring Gasket also referred to as 4 (Pipe Size) x 114.3mm (ID) x 180.85mm (OD) x 1/2" (Thickness). FF202-90-300#-4"-RN-1/2" is a size 4, 300#-RN ASME Ring Gasket. Material: 90 Durometer FFKM Parker FF202-90 Ring Gasket Size: 300#-4"-RN-1/2", 4 Pipe Size X 114.3mm ID X 180.85mm OD X 1/2" Thickness
| Technical Specification | Value |
|---|---|
| Compound Number | FF202-90 |
| Brand | Parker Seal® (Parker), Parofluor® (Parker) |
| Material | FFKM (Perfluoroelastomer) |
| Color | Black |
| Durometer | 90 Shore A Hardness |
| High Temperature | 320 °C / 608 °F |
| Low Temperature | -15 °C / 5 °F |
| Geometry Specifications | |
| Type | Ring Gasket |
| Size | 300#-4"-RN-1/2" |
| Pipe Size | 4 |
| ID | 114.30 mm / 4.500 in |
| OD | 180.85 mm / 7.120 in |
| Thickness | 1/2" |
| Other Specifications | |
Extrusion Resistant | |
Parker’s FF202-90 is a 90 Shore A perfluorinated elastomer (FFKM) compound engineered for ultra high-temperature sealing in chemically aggressive environments. With a recommended service temperature range of 5°F to 608°F, it delivers exceptional thermal stability while maintaining sealing integrity in aliphatic and aromatic hydrocarbons, chlorinated hydrocarbons, polar solvents such as acetone, MEK, and dioxane, and a wide range of inorganic and organic acids. The compound also performs well in high-vacuum applications with minimal weight loss, as well as in petroleum oil and wet or dry chlorine exposure. Its higher durometer provides improved extrusion resistance and dimensional stability under pressure and elevated temperatures.
FF202-90 is commonly used in O-rings, gaskets, and custom seals for high-temperature chemical processing equipment, vacuum systems, and severe service industrial applications. It is not recommended for fluorinated refrigerants, uranium hexafluoride, molten metals, gaseous or alkali metals, or hot water and steam. This ultra high-temperature FFKM formulation is selected where maximum heat capability and chemical resistance are required without steam exposure. Canyon Components offers equivalent FFKM materials designed to match or exceed the performance of Parker FF202-90 for extreme temperature and chemical sealing applications.
Common relevant keywords:
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