Water Supply Pipe Series

Electrofusion Fitting

1. Dia: DN20-630mm(1/2 inch- 24 inch).

2. Pressure Class: PN10,PN16, PN20.

3. Packing: Packaged by cartons or bags.

4. Delivery: In Stock, Quick Deliery.

5. CO (Certificate of Origin): China, CO could be provided.

6. Product inspection: Raw material inspection. Finished product inspection. Third party inspection upon clients request.

Certification

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Introduction
Feature
Specification
Physical Parameter
Application
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Introduction

Electrofusion pipe fitting can be connected by the temperature generated from electric current. Leveraging advanced electrofusion technology, these fittings deliver safe, reliable, and leak-proof connections that outperform traditional joining methods in many scenarios. It is most commonly used for jointing pipes up to 250mm diameter but there is no technical upper limit. Electrofusion is equally suited to both coiled and straight pipe lengths, and can be used to joint pipes of different nominal diameters and SDR's using suitable fittings.

HDPE electrofusion fittings ends are coiled with brass wire. The HDPE electrofusion machine provides electric current and heats through the brass wire coiled at the end of the fitting to connect. When the temperature rises, it melts the inner end of the HDPE electrofusion fitting and the outer end of the HDPE pipe.

Core Working Principle

The core of electrofusion fitting technology lies in the built-in resistance wire coil embedded in the fitting’s inner wall. During installation:

1. The HDPE pipe end is inserted into the fitting until it reaches the designated position.

2. A dedicated electrofusion welding machine is connected to the fitting’s terminals.

3. The machine supplies a precise electric current to the resistance wire, which generates controlled heat due to electrical resistance.

4. The heat melts both the outer surface of the HDPE pipe and the inner surface of the fitting uniformly.

5. After a preset heating and cooling period, the melted polyethylene fuses into a single, homogeneous structure, forming a permanent, high-strength joint.

Factory visits and third-party inspections are welcome.

Feel free to contact us for product catalogs, quotations and professional technical support.

Please contact us by email: sales@hengdepipes.com or WhatsApp: +86 15265578500.

Feature

Benefits of (High Density Polyethylene) Electrofusion Fitting

Feel free to contact us for product catalogs, quotations and professional technical support.

Please contact us by email: sales@hengdepipes.com or WhatsApp: +86 15265578500.

Exceptional Connection Reliability: The fusion process creates a molecular-level bond between the pipe and fitting, ensuring the joint has equal or even higher strength than the pipe itself. It effectively avoids common issues like leakage, disconnection, and pressure loss that may occur with mechanical connections.

Simple and Efficient Installation: The operation requires only a matching electrofusion machine and basic surface preparation of the pipe end. It eliminates the need for complex tools or extensive on-site welding expertise, significantly reducing installation time and labor costs. The process is highly suitable for both on-site construction and confined space operations.

Strong Adaptability to Working Conditions: HDPE electrofusion fittings are corrosion-resistant, chemical-resistant, and have excellent impact resistance and low-temperature toughness. They are compatible with HDPE pipes for applications in potable water supply, sewage and drainage, gas transmission, mining slurry transportation, agricultural irrigation, and industrial fluid conveyance systems.

Uniform Welding Quality: The welding parameters (current, voltage, duration) are precisely controlled by the electrofusion machine, minimizing human error. This ensures consistent welding quality across every joint, making it ideal for large-scale pipeline projects that demand strict quality standards.

Specification

EF Coupler
de(mm)	D(mm)	L(mm)	L₁(mm)	L₂(mm)
50	65	95	45	20
63	80	110	50	20
75	95	120	55	30
90	110	135	65	35
110	140	155	75	40
140	170	170	80	40
160	200	195	95	45
200	250	220	105	50
225	270	230	110	55
250	296	240	115	65
315	373	285	135	80
355	420	290	140	90
400	473	315	150	100
450	535	320	155	100
500	595	330	160	100
560	665	340	160	140
630	710	420	200	180

EF elbow 90 °
de(mm)	D(mm)	L(mm)	L₁(mm)	L₂(mm)
50	65	85	45	20
63	80	85	50	20
75	95	100	55	30
90	110	120	65	35
110	140	145	75	40
140	170	170	80	40
160	200	190	95	45
200	250	225	105	50
225	270	250	110	55
250	296	245	115	65
315	373	285	135	80
355	420	355	140	90
400	473	385	150	100
450	535	425	155	100
500	665	455	160	100

EF elbow 45 °
de(mm)	D(mm)	L(mm)	L₁(mm)	L₂(mm)
50	65	82	45	20
63	80	85	50	20
75	95	85	55	30
90	110	100	65	35
110	140	113	80	40
140	170	125	80	40
160	200	150	105	45
200	250	170	120	50
225	270	175	110	55
250	292	210	115	65
315	366	235	135	80
355	420	250	140	90
400	473	275	150	100
450	535	295	150	100
500	595	310	160	100

EF End Cap
de(mm)	D(mm)	L(mm)	L₁(mm)	L₂(mm)
20	82	37.5	29	20
25	82	37.5	33.5	25
32	84	37.5	43	32
40	97	44	51.5	40
50	101	44	61.5	50
63	115	49	77	63
75	125	61	100	75
90	133	60	110	90
110	164	70	133	110
125	175	75	151	125
140	236	89	176	140
160	202	86	195	160
180	214	91	220	180
200	215	92	243	200
225	222	109	276	225
250	220	108	301	250

EF Equal Tee
de(mm)	D(mm)	dn(mm)	L(mm)	L1(mm)	L2(mm)	L3(mm)	L4(mm)
50	65	50	150	45	45	90	20
63	80	63	175	50	55	105	20
75	95	75	205	55	60	120	30
90	110	90	230	65	70	140	35
110	140	110	265	75	75	160	40
140	170	140	320	80	80	180	40
160	200	160	365	95	100	215	45
200	250	200	435	105	110	250	50
225	270	225	460	110	110	255	55
250	292	250	485	125	140	285	65
315	366	315	575	140	145	350	80
355	420	355	660	140	140	375	90
400	473	400	740	150	150	425	100
450	535	450	785	155	155	460	100
500	595	500	845	160	160	490	100

EF Stub End
de(mm)	D(mm)	D1(mm)	L(mm)	L1(mm)	L2(mm)
50	65	90	115	115	40
63	80	105	120	110	40
75	95	125	130	125	70
90	110	140	145	140	70
110	140	160	150	140	75
140	165	190	155	145	80
160	190	215	160	150	85
200	235	270	180	165	95
225	255	315	175	160	60
250	280	325	130	110	60
315	350	380	135	115	60
355	380	450	170	155	60
400	435	495	160	140	65
450	480	560	190	180	100
500	540	580	230	210	120
560	610	650	240	220	130
630	680	750	270	250	150

EF Reducing Tee
Size(mm)	OD(mm)	L1(mm)	L(mm)	ML(mm)	SL(mm)
32*20	44	47.6	116	58	102
32*25	44	48.2	122	59	103
40*20	57	50	120	58	115
40*25	57	50	125	59	175
40*32	57	49	129	77	134
50*20	67	55	135	58	125
50*25	67	55	135	59	126
50*32	67	55	142.2	77	144
50*40	67	55	149	73	140
63*20	82	63	154	58	140
63*25	82	63	159.8	59	141
63*32	82	63	165.5	77	159
63*40	82	63	172.5	73	155
63*50	82	87.5	175	55	137
75*40	98	70	186.3	73	171
75*50	98	79	209.5	69	167
75*63	98	100	200	63	161
90*40	117	79	230	73	190
90*50	117	82	218	69	186
90*63	117	112.5	225	63	180
90*75	117	112.5	225	70	187
110*50	142	82	250	69	211
110*63	142	124	248	63	205
110*75	142	124	248	70	215
110*90	142	124	248	79	221
125*63	160	135	270	63	223
125*75	160	135	270	70	230

EF Reducing Tee
Size(mm)	OD(mm)	L1(mm)	L(mm)	ML(mm)	SL(mm)
125*90	160	135	270	79	239
125*110	160	135	270	82	242
160*50	193	98	249	69	232
160*63	195	155	310	63	232
160*75	195	155	310	70	258
160*90	195	155	310	79	265
160*110	195	155	310	82	274
160*125	195	155	310	87	277
180*160	216	105	352	98	287
200*50	240.5	112	308	69	314
200*63	240.5	112	308	63	309
200*75	240.5	112	308	70	303
200*90	240.5	112	308	79	310
200*110	240.5	112	365	82	319
200*160	240.5	112	365	98	322
250*50	240.5	112	338	69	338
250*63	296	129	338	63	365
250*75	296	129	338	70	356
250*90	296	129	338	79	366
250*110	296	129	338	82	375
250*160	296	129	430	98	378
250*200	296	129	430	128	394
315*90	380	150	440	79	459
315*110	380	150	440	82	462
315*160	380	150	440	98	478
315*200	380	150	514	128	508
315*250	380	150	514	154	534

EF Reducing Tee
de1(mm)	de2(mm)	D1(mm)	D2(mm)	L(mm)	L1(mm)	L2(mm)	L3(mm)
63	50	80	65	120	50	30	20
75	50	95	65	135	55	35	25
75	63	95	80	135	55	35	25
90	50	110	65	155	65	40	20
	63		80	155	65	40	25
	75		95	175	65	40	30
90	50	140	65	160	75	50	20
	63		80	160	75	50	25
	75		95	165	75	50	30
	90		110	175	75	50	40
140	90	160	110	190	90	55	40
140	110	160	110	190	90	55	40
160	90	200	110	230	75	70	35
160	110	200	140	230	95	70	40
200	110	250	140	290	105	55	75
200	160	250	200	250	105	60	60
225	110	260	140	260	115	50	60
	140		140				65
	160		200				70
	200		250				80
250	110	296	140	280	120	50	60
	140		160				65
	160		200				70
	200		250				80
	225		260				85
315	110	373	140	310	140	70	70
	140		160				70
	160		200				70
	200		250				75
	225		260				75
	250		296				80

EF Reducing Tee
de1(mm)	de2(mm)	D1(mm)	D2(mm)	L(mm)	L1(mm)	L2(mm)	L3(mm)
355	110	420	140	330	150	80	70
	140		160				70
	160		200				70
	200		250				75
	225		260				75
	250		296				80
	315		373				90
400	110	468	140	340	160	85	70
	140		160				70
	160		200				70
	200		250				75
	225		260				75
	250		296				80
	315		373				90
	355		420				95
450	110	535	140	360	170	90	70
	140		160				70
	160		200				70
	200		250				75
	225		260				75
	250		296				80
	315		373				90
	355		420				95
	400		473				100
500	110	590	140	350	180	100	70
	140		160				70
	160		200				70
	200		250				75
	225		260				75
	250		296				80
	315		373				90
	355		420				95
	400		473				100
	450		535				110

Feel free to contact us for product catalogs, quotations and professional technical support.

Please contact us by email: sales@hengdepipes.com or WhatsApp: +86 15265578500.

Physical Parameter

Item	Fittings Types	Specified Fittings	Diameter(mm)	Pressure Rates(PN-Bar)	Manufacturing Process
1	Electrofusion Fittings	EF Coupler/Coupling	OD50-630mm	PN16, PN12.5, PN10	Injection Molding
		EF Reducer/ Reducing Coupler	OD50-630mm	PN16, PN12.5, PN10
		EF 45 deg elbow	OD50-630mm	PN16, PN12.5, PN10
		EF 90 deg elbow	OD50-630mm	PN16, PN12.5, PN10
		EF End Cap	OD50-630mm	PN16, PN12.5, PN10
		EF Stub End	OD50-630mm	PN16, PN12.5, PN10
		EF Tee	OD50-630mm	PN16, PN12.5, PN10
		EF Reducer Tee	OD50-630mm	PN16, PN12.5, PN10

Feel free to contact us for product catalogs, quotations and professional technical support.

Please contact us by email: sales@hengdepipes.com or WhatsApp: +86 15265578500.

Application

HDPE electrofusion fittings are widely adopted in civil engineering, municipal infrastructure, industrial production, and agricultural engineering. Typical application scenarios include:

Municipal drinking water and recycled water supply networks.

Underground sewage and rainwater drainage systems.

Natural gas and liquefied petroleum gas (LPG) distribution pipelines.

Slurry and fluid transportation pipelines in mining and construction sites.

Irrigation and water conservancy projects in agriculture.

Feel free to contact us for product catalogs, quotations and professional technical support.

Please contact us by email: sales@hengdepipes.com or WhatsApp: +86 15265578500.

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