HDPE Compression Stub End

HDPE Compression Stub End DN 20 – DN 110, PN 10, PN 16 @ 20°C, to ISO 14236, ISO 228-1, for PE water supply and irrigation lines.

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Category: Compression Fittings

Compression Fittings

Product Overview

The HDPE Compression Stub End is a push-fit fitting designed for HDPE/PP water supply and irrigation systems. This HDPE Compression Stub End uses stainless steel claws and EPDM seal ring, providing reliable mechanical connection without fusion equipment.

Contractors and installers rely on the HDPE Compression Stub End for quick field installation in residential, agricultural, and industrial water systems. The PP body is corrosion-resistant and hygienic, suitable for potable water. The reusable design allows disassembly for maintenance.

Quick Information

Diameter Range: DN 20 - DN 110
Pressure Rating: PN 10, PN 16 @ 20°C
Applicable Standards: ISO 14236, ISO 228-1
Stock Availability: In stock
Sample Policy: Free sample available
Lead Time: 5-30 days

Specification Table

DN	Item	dn	L (mm)	L1 (mm)	D (mm)	Net Weight (Kg)	Packing (pcs)
63	SE-063	63	96	15	104	0.23	100
75	SE-075	75	99	16	120	0.31	60
90	SE-090	90	110	17	138	0.41	45
110	SE-110	110	111	20	158	0.63	25

Key Features

Stub-end Flange Structure - The fitting has a compression end and a flange face for bolted joints. The HDPE Compression Stub End provides this core function reliably.
Quick Push-fit Locking - Stainless steel claws and EPDM seal ring lock and seal the pipe end by hand, no fusion equipment required.
Independent End Sealing - Each end has its own clamps and seal ring, allowing staged installation and pressure testing.
Corrosion-resistant PP Body - Hygienic polypropylene body suits potable and irrigation water, resisting chemical corrosion and scaling.
Reusable Design - The HDPE Compression Stub End can be loosened and reassembled for maintenance or retrofit without cutting the pipe.
ISO 14236 Certified - Compliant with international standards for water supply systems, ensuring quality and reliability.

Production

Raw Material

The HDPE Compression Stub End body is injection-molded from PPR (polypropylene random copolymer) for high stiffness, creep resistance, and long-term service temperature up to 70°C. The seal ring is EPDM rubber for potable water compliance. The gripping claws are 304 stainless steel for corrosion resistance and clamping force retention.

Molding Process

The PP body is produced by precision injection molding with controlled temperature, pressure, and cooling rate to ensure dimensional stability of the gripping surface and seal-ring groove concentricity. Wall-thickness uniformity is monitored to guarantee pressure rating. The stainless steel claw is stamped and heat-treated to maintain spring force over repeated installation cycles.

Quality Control

Every HDPE Compression Stub End undergoes 100% pneumatic leak test at 1.5x rated pressure, sampling hydrostatic strength test at 2x rated pressure for 1 hour, and dimensional inspection of gripping surface, seal-ring groove concentricity, and wall thickness uniformity. Batch records are retained for 3 years traceability.

Applications

Water Supply Networks - The HDPE Compression Stub End is used in residential and commercial HDPE water distribution systems for reliable leak-free connections.
Irrigation Systems - Connecting PE irrigation mainlines and sub-mainlines in farmland, orchards, and greenhouse installations.
Drainage Systems - In-line coupling of HDPE drainage and sewer pipelines for underground service without fusion equipment.
Industrial Cooling Water - Joining HDPE cooling water lines in industrial plants where chemical resistance and quick installation are priorities.
Retrofit and Maintenance - The reusable HDPE Compression Stub End allows quick pipe extension, repair, or valve insertion without shutting down the whole line.