HDPE stub end

Application: Mining, Water

Working pressure: SDR9, SDR7,SDR11,PN20,PN25,PN16

Size: 315mm, 355mm, 400mm, 450mm, 500mm, 560mm, 630mm, 710mm, 800mm, 900mm, 1000mm, 1200mm, 1600mm, 42”, 48”, 63”

Standard: AS4129, ISO4427, EN12201, F2880, AWWA C906, D2513

Flange/Stub-end
Polyethylene flange adaptors/ stub-ends are used to connect HDPE pipes together or to connect to other piping equipment. The PE flange adaptor is fused to the pipe and then joined to a similar PE flange or its matching flange of unlike material. It is joined by using bolts and back-up metal rings.

Stub-ends /Flange adapters can be fused to the same DR or to the one standard higher DR. (i.e.,DR-17 to DR-21)
The sealing surface of the stub-end/ flange adapter is serrated to provide a better sealing surface and hold the gasket in place.
Gasket material must be well-matched with the inner fluid and outer environment at service conditions. For choosing the right thickness, hardness, material and style check with gasket manufacturer.

Smart Joint supply metal back-up ring based on DIN 2501 or other international standards by customer demand and regarding service conditions.
 

The back-up metal ring is placed at the back of the flange adaptor/ stub end sealing surface before welding in order to provide a uniform pressure around the sealing surface and forbid the leakage through the bolts area.

Tags: hdpe pipe stub ends | stun end with backup ring | hdpe stub end flange | IPS Stub end

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