Image shown is representative and may differ from the actual product in size, proportions, and color shade
2.380 in
(60.45 mm)
6.500 in
(165.10 mm)
8
0.750 in
(19.05 mm)
5.000 in
(127.00 mm)
1/2"
FKM VT90BK51 Full Face Gasket, Size: 300#-2"-FF-1/2"
Material: FKM VT90BK51 Full Face Gasket
Size: 300#-2"-FF-1/2" Full Face Gasket
Part Number: VT90BK51-300#-2"-FF-1/2"
VT90BK51
FKM (Viton®)
90
Shore A
FKM Type XLT (Extreme Low Temp Viton®)
Ultra Low Temperature Material
Color: Black
Detailed Description
VT90BK51-300#-2"-FF-1/2" is a Black, 90 Shore A, FKM (Viton®) Full Face Gasket, a FKM Type XLT (Extreme Low Temp Viton®) product. It is a 90 durometer FKM (Viton®). [VT90BK51 is manufactured with the following features & specifications: Ultra Low Temperature Material, AED NORSOK M710, AED NACE TM0297, Anti-Explosive Decompression. VT90BK51-300#-2"-FF-1/2" is a size 2, 300#-FF ASME Full Face Gasket. Material: 90 Durometer FKM VT90BK51 Full Face Gasket Size: 300#-2"-FF-1/2", 2 Pipe Size X 60.45mm ID X 165.1mm OD X 8 Bolt Qty X 19.050mm Bolt Dia. X 127.000mm Bolt Circle X 1/2" Thickness
| Technical Specification | Value |
|---|---|
| Compound Number | VT90BK51 |
| Material | FKM (Viton®) |
| Subtype | FKM Type XLT (Extreme Low Temp Viton®) |
| Color | Black |
| Durometer | 90 Shore A Hardness |
| High Temperature | 225 °C / 437 °F |
| Low Temperature | -48 °C / -54 °F |
| Geometry Specifications | |
| Type | Full Face Gasket |
| Size | 300#-2"-FF-1/2" |
| Pipe Size | 2 |
| ID | 60.45 mm / 2.380 in |
| OD | 165.10 mm / 6.500 in |
| Bolt Qty | 8 |
| Bolt Dia. | 19.05 mm / 0.750 in |
| Bolt Circle | 127.00 mm / 5.000 in |
| Thickness | 1/2" |
| Other Specifications | |
AED NORSOK M710 | |
AED NACE TM0297 | |
Anti-Explosive Decompression | |
VT90BK51 is a 90 shore A black FKM Type XLT compound engineered for extreme environments where both low temperature flexibility and resistance to explosive decompression are critical. This material is designed to meet NACE TM0297, NORSOK M-710, and ISO 23936-2 requirements, making it ideal for oil and gas applications such as downhole tools, valves, and high pressure sealing systems using O-rings and gaskets. It delivers excellent chemical resistance across hydrocarbons and aggressive media while maintaining sealing integrity in a service temperature range of -48°C to 225°C. VT90BK51 can be compared to Parker VG109-90 and other high performance AED-resistant FKM materials when evaluating equivalent compounds for demanding sealing applications.
FKM, commonly referred to as Viton®, is a high performance fluoroelastomer widely used in O-rings and gaskets where resistance to fuels, oils, chemicals, and elevated temperatures is required. XLT and ULT variants are specifically formulated to extend low temperature performance beyond standard FKM while maintaining strong compression set resistance and durability. These materials are commonly used in oil and gas, aerospace, and chemical processing industries, particularly in applications involving rapid gas decompression, high pressure, and harsh chemical exposure. While highly versatile, FKM materials are generally not recommended for hot water, steam, or certain polar solvents, making proper material selection essential for long-term sealing reliability.
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