Electrofusion Fittings

EF Fittings
Electrofusion fittings are used, incorporating an electrofusion control box, the heating coils melt the plastic of both the fitting and the pipe, causing them to fuse together.

The use of reliable polyethylene fittings is required to obtain a high quality and durable polyethylene pipe system.

The quality, reliability, and flexibility of Alwasail’s electrofusion fittings provide the certainty and peace of mind needed for polyethylene pipe joining.

Features

Fitting Type
Water (cold)
Gas

Coupler
PN16
6 Bar / 10 Bar

Elbow
PN16
6 Bar / 10 Bar

Equal Tee
PN16
6 Bar / 10 Bar

Reducer
PN16
6 Bar / 10 Bar

Tapping Tee **
PN16 / PN12.5
6 Bar / 10 Bar

Branch Saddle **
PN16 / PN12.5
6 Bar

6 Bar

 

ISO PE Classification
Minimal Required Stress
Long-Term Hydrostatic Resistance at 20 °C

PE80
8 MPa
6.3 MPa

PE100
10 MPa
8 MPa

PE80 is widely used for gas, water, and industrial applications for many years.

PE100 is a higher performance, higher density PE, which demonstrates exceptional resistance to rapid crack propagation and long-term stress cracking. Due to the higher performance, this type of PE allows for thinner walls at the same operating pressure.
Approval Testing

Typical Test 
Test Criteria
Water Specification
Gas Specifications

20°C Hydrostatic test
(5000 hrs)
PE80 – 9.5 Mpa
PE100 – 11 Mpa
N/A
GIS/PL2-4
GIS/PL2-6

80°C Hydrostatic test
(1000 hrs)
PE80 – 4 Mpa
PE100 – 5 Mpa
BS EN12201-3
BS EN1555-3
GIS/PL2-4
GIS/PL2-6

20°C Hydrostatic test
(100 hrs)
PE80 – 10 Mpa
PE100-12.4Mpa
BS EN12201-3
GIS/PL2-4
GIS/PL2-6 BS
EN1555-3
ISO 8085

80°C Hydrostatic test
(170 hrs)
PE80 – 4.6 Mpa
PE100 – 5.5 Mpa
BS EN12201-3
GIS/PL2-4
GIS/PL2-6 BS
EN1555-3
ISO 8085

Joint strength/adhesion
(socket OD>90mm)
All samples have 75% ductility
WIS 4-32-08
BS EN12201-3
GIS/PL2-4
GIS/PL2-6
BS EN1555-3
ISO 8085

Joint strength/adhesion
(socket OD ≤ 90mm and saddles)
No brittle failure at joint interface
BS EN12201-3
GIS/PL2-4
GIS/PL2-6
BS EN1555-3
ISO 8085

Material tests
(taken from the joint interface after fusion cycle)
MFR, OIT and density within specified limits
BS EN12201-3
GIS/PL2-4
GIS/PL2-6
BS EN1555-3
ISO 8085

Tapping tee cutter torque
No cracking or leaking after impact
BS EN12201-3
GIS/PL2-4
GIS/PL2-6
BS EN1555-3
ISO 8085

Branch saddle pull off
Outlet pipe to fall before fitting
Internal
Internal