HDPE Electro Fusion Double Sealing Coupler

HDPE Electro Fusion Double Sealing Coupler, PN10 / PN16, PE100, to ISO 4427 / EN 12201, for PE water and gas networks.

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Category: HDPE Electro Fusion Fittings

HDPE Electro Fusion Fittings

Product Overview

The HDPE electro fusion double sealing coupler joins two PE100 pipes of the same diameter through two electro fusion sockets with a dual sealing design. The heating coils are moulded into both socket walls and energized by a standard electro fusion control unit, so the joint becomes a monolithic PE100 section with the same pressure rating as the pipe on either side. Available from DN 50 to DN 315 mm with PN10 to PN16 ratings, the HDPE electro fusion coupler is the standard choice for buried potable water networks where a leak tight pipe connection is required.

Quick Information

Material: PE100 (HDPE)
Joint: Electro fusion, double sealing
Function: Straight coupling
Pressure rating: PN10 / PN16
Standard: ISO 4427 / EN 12201
Colour: Black

Specification Table

Dn	D	T	L	L1	L2
50	68	9	100	49	18
63	81	9	120	59	20
75	93	9	144	70	20
90	112	11	170	83	25
110	136	13	183	90	35
160	194	17	197	97	35
200	240	20	230	113	46
250	292	21	260	128	50
315	375	30	276	137	60

Key Features

Dual Sealing Sockets: Both ends of the HDPE electro fusion coupler use a double seal design in the socket, so even if one seal is scratched during assembly the joint stays leak tight under pressure.
Straight Through Bore: The coupler bore matches the pipe ID exactly, so there is no restriction or ledge to disturb flow at the joint.
One Piece Moulded Body: The coupler is injection moulded as a single body, so there is no welded seam between the two sockets.
No Flow Disturbance: The smooth through bore means water passes straight through without turbulence, so head loss at the joint is negligible.
No Metal Insert: The electro fusion coupler keeps polyethylene in the water path, so there is no corrosion or galvanic risk at the connection point.
Maintenance Free: The fused joints are permanent, so the HDPE electro fusion coupler needs no bolts or gaskets to inspect or service.

Production

Raw Material

The HDPE electro fusion coupler is moulded from virgin PE100 compound rated MRS 10.0 per ISO 4427-3, with the resin lot recorded for full traceability from pellet to fitting.

Molding Process

Each electro fusion coupler is injection moulded in one shot with both resistance coils pre positioned in the socket walls; the through bore is machined to match the pipe ID so there is no internal step between the two sockets.

Quality Control

Every batch of HDPE electro fusion couplers is gauged for socket diameter, ovality, coil resistance and bore concentricity, then sample welded and pressure tested to 1.5 times rated pressure before release; each fitting carries a batch code traceable to the raw resin lot.

Applications

Broken pipe repair uses the HDPE electro fusion coupler to join the cut ends of a damaged PE100 main without digging out the whole pipe run.
Extension runs install the electro fusion coupler to connect new pipe lengths, because the straight through bore keeps flow undisturbed at each joint.
Branch cut in connections use the HDPE electro fusion coupler to join the pipe after a saddle tee is installed, so the main stays continuous.
Connection between pipe sections in long transmission mains relies on the electro fusion coupler, because the double sealed sockets keep every joint leak tight under pressure cycling.