DIN-Series EPDM Sanitary Union Seal Ring
A profiled EPDM sealing ring designed for mating DIN sanitary union grooves across a listed DN20 to DN100 series size range. Supplied with a reference semicircular-section DIN dimensional chart covering DN10 through DN150.
Mating Interface | DIN sanitary union sealing groove (specific DIN standard number not printed) |
|---|---|
Seal Profile | Profiled black union seal ring; embedded drawing shows semicircular D-section (ID A, OD B, thickness C) |
Material | EPDM |
Listed Size Range | DN10–DN150 |
Ring geometry | D-section annular DIN union seal ring |
Product overview
DIN Union Groove Sealing Configuration
This DIN-series EPDM seal ring seats inside the recessed annular groove of a DIN union male threaded end and seals against the flat face of the mating weld liner when the slotted round nut is tightened. Neither the webpage nor the embedded drawing states a specific standard number such as DIN 11851.
EPDM Material Designation and Scope
The product heading and table title designate this item as an EPDM seal for DIN unions, while the parameter row prints a broader series list of Viton, EPDM, and Silicone. EPDM is suited for water, steam, beverage, and alkaline cleaning media; verify the exact elastomer compound and hardness required for your line.
DN20–DN100 Table Range and Reference Chart
The series parameter table lists sizes from DN20 to DN100, whereas the embedded dimensional drawing covers twelve nominal sizes from DN10 through DN150. Across DN20 to DN100 in that reference chart, inside diameter A spans 22 to 102 mm, outside diameter B spans 30 to 114 mm, and thickness C is 5 mm (increasing to 5.5 mm on DN125 and DN150).
Cross-Section Checks Before Ordering
The embedded drawing depicts a semicircular D-section profile with one flat face and one curved face, while the product photograph shows a black molded ring whose exact lip contour cannot be verified from the image alone. Confirm whether your DIN union groove requires the semicircular D-section or a lipped profile before installation.
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