IDF-Series FKM (Viton) Sanitary Union Seal Ring
A fluoroelastomer (Viton / FKM) union gasket featuring a profiled sealing lip designed for mating IDF sanitary union joints. Listed across a 25 to 102 mm nominal size range for hygienic process piping.
Mating Interface | IDF sanitary pipe union sealing recess |
|---|---|
Seal Profile | Black annular union ring with profiled sealing lip |
Material | Viton / FKM fluoroelastomer |
Size Range | 25~102 mm |
Ring geometry | Profiled-lip annular IDF union seal ring |
Product overview
IDF Union Lipped Seal Construction
The IDF fluoroelastomer gasket seats between the male threaded spigot and the weld liner of an IDF (International Dairy Federation) sanitary union. As shown in the product photograph, the black ring incorporates a molded inner lip that fills the joint recess so the bore transition remains smooth when the union nut is tightened.
FKM (Viton) Material Designation
The primary page heading designates this item as a Viton gasket for sanitary IDF unions, while the specification block and series schedule list five broader series materials: PTFE, EPDM, Silicone, FKM, and NBR. Specify FKM / Viton explicitly when ordering for process streams containing oils, fats, or elevated-temperature media.
25–102 mm Series Size Range
Both Available in and the parameter table specify a nominal size range of 25 mm through 102 mm. Because the series specification does not publish a per-size cross-sectional drawing with inside diameter, outside diameter, or lip thickness values, verify the required dimensions against your mating IDF union components.
IDF Interface Boundary and Selection
Although the series specification prints a generic '3A, DIN, SMS, ISO' string in its standard row, IDF union seals have a dedicated lipped cross-section that is not interchangeable with SMS, DIN, or RJT union rings. Match the seal profile, compound hardness, and nominal size directly to your installed IDF union hardware.
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