HDPE Butt Fusion Stub End for Water

HDPE stub end manufactured from PE100 for flanged connections with backing ring.

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Category: HDPE Butt Fusion Fittings

HDPE Butt Fusion Fittings

Product Overview

HDPE stub end manufactured from PE100 for flanged connections with backing ring. Welded to the PE100 line and paired with a metal backing ring, this HDPE butt fusion stub end creates a demountable flange joint for valves, meters and metal pipelines. The HDPE butt fusion stub end covers OD 50 - 630 mm in PN10 - PN16 ratings per ISO 4427.

Quick Information

Type: Stub End
Material: HDPE PE100
Size: OD 50 - 630 mm
Pressure: PN16 / PN12.5 / PN10
Standard: ISO 4427 / EN 12201
Stock: In stock

Specification Table

SPECIFICATION dn	L	H	D1	D	SDR17	SDR13.6	SDR11
FL50	88	76	56	80			√
FL63	90	77	75	102	√		√
FL75	98	84	89	120	√		√
FL90	110	93	104	135	√		√
FL110	120	102	124	155	√		√
FL125	127	107	132	158	√		√
FL140	127	105	154	188	√		√
FL160	135	109	174	212	√		√
FL180	135	105	188	212	√		√
FL200	155	122	235	268	√		√
FL225	145	115	232	268	√		√
FL250	160	128	285	320	√		√
FL280	160	125	290	320	√		√
FL315	175	140	335	370	√		√
FL355	175	140	373	430	√		√
FL400	180	145	427	482	√		√
FL450	208	165	475	585	√		√
FL500	215	168	530	585	√		√
FL560	220	174	582	625	√		√
FL630	230	178	642	685	√		√
FL710	235	178	737	800	√		√
FL800	240	183	840	905	√		√
FL900	245	187	930	1005	√		√
FL1000	250	192	1030	1110	√		√
FL1200	300	230	1230	1300	√		√

Key Features

Demountable Flange Joint: Paired with a backing ring, the HDPE butt fusion stub end creates a bolted connection that can be opened for maintenance.
Machined Sealing Face: The flange face of every HDPE butt fusion stub end is machined flat for uniform gasket compression and leak-free sealing.
PE100 High-Strength Material: Each HDPE butt fusion stub end is produced from virgin PE100 compound rated for a 50-year design life.
Full-Strength Fusion Joint: The HDPE butt fusion stub end welds to PE100 pipe with standard butt fusion machines, forming a monolithic flange adapter.
Rated PN10 - PN16: The HDPE butt fusion stub end matches common PE100 pipe classes from OD 50 to 630 mm.
Corrosion-Free Service: Unlike steel flange adapters, the HDPE butt fusion stub end never rusts, keeping the sealing face true for decades.

Production

Raw Material

The HDPE butt fusion stub end is molded from certified PE100 black compound with uniform carbon black dispersion, meeting ISO 4427 and EN 12201 requirements.

Molding Process

Injection molding forms the HDPE butt fusion stub end body, then CNC machining finishes the flange face and outer diameter to precise gasket-seat dimensions.

Quality Control

Every HDPE butt fusion stub end batch is gauged for face flatness, hub diameter and wall thickness, then sampled for hydrostatic strength per ISO 1167.

Applications

Valve and meter connections use the HDPE butt fusion stub end for bolted, serviceable joints in chambers.
HDPE-to-metal transitions rely on the HDPE butt fusion stub end with a steel backing ring and gasket.
Pump station pipework installs the HDPE butt fusion stub end at equipment nozzles for easy disassembly.
Treatment plants choose the HDPE butt fusion stub end where lines must be opened for cleaning or inspection.