PFA-FKM TF75BK50 O-Ring, Size: 7X47
Material: PFA-FKM TF75BK50 O-Ring
Size: Metric 7X47 O-Ring
Part Number: TF75BK50-OR-7X47
TF75BK50
Teflon® PFA Encapsulated FKM
75
Shore A
Encapsulated
FKM Core
Color: Black
Detailed Description
TF75BK50-OR-7X47 is a Black, 75 Shore A, Teflon® PFA Encapsulated FKM O-Ring, a FKM Core product. TF75BK50 is manufactured with the following features & specifications: Encapsulated. TF75BK50-OR-7X47 is Metric size 7X47 O-Ring also referred to as 7mm (Cross Sectional Diameter (CS)) x 47mm (Inside Diameter (ID)).
Material: PFA-FKM TF75BK50 O-Ring
Size: Metric 7X47, 7.00mm CS X 47.00mm ID (0.276" CS X 1.850" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | TF75BK50 |
| Material | Teflon® PFA Encapsulated FKM |
| Subtype | FKM Core |
| Color | Black |
| Durometer | 75 Shore A |
| High Temperature | 205 °C / 401 °F |
| Low Temperature | -26 °C / -15 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | Metric |
| Size | 7X47 |
| Cross Section (CS) | 7.00 mm / 0.276 in |
| Inside Diameter (ID) | 47.00 mm / 1.850 in |
| Other Specifications | |
Encapsulated | |
TF75BK50 is a 75 shore A black PFA encapsulated FKM compound designed for sealing applications requiring extreme chemical resistance with reliable elastomeric performance. The PFA Teflon outer shell provides near universal chemical compatibility, making it ideal for O-rings and gaskets exposed to aggressive acids, solvents, and process media, while the FKM core delivers resilience and recovery for effective sealing. This material is well suited for pharmaceutical, food processing, and chemical handling systems, with compliance to FDA 21 CFR 177.1550, USP Class VI, and 3A 20-17 standards. With a service temperature range of -26°C to 205°C, TF75BK50 meets ASTM D2000 requirements and offers dependable performance in demanding environments.
PFA encapsulated FKM materials combine the chemical inertness of fluoropolymers with the flexibility of elastomer cores to create high performance sealing solutions. The PFA outer layer resists a wide range of aggressive chemicals, while the FKM core maintains sealing force and compression recovery in O-rings and gaskets. These materials are commonly used in pharmaceutical, semiconductor, and chemical processing industries where contamination control and chemical resistance are critical. While highly effective in harsh chemical environments, encapsulated seals are typically best suited for static applications due to reduced abrasion resistance compared to solid elastomers.
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