These test are carried at Government
recognised Testing Laboratory :-
VJTI - Veermata Jijabai Technological Institute
UDCT - University Department of Chemical Technology
The following
Tests are carried out as per Quality Assurance Plan during &
after Manufacturing the Product is as follow:-
}
Thickness Test -
Continuous monitoring of thickness by taking the necessary
readings.
}
On line Holiday
Test - conducted during Production AT FACTORY.
}
Vaccum Test -
conducted after Production AT FACTORY. Vacuum test is
carried out at - 750 mm Hg(Vacuum) for one hour, approximately a
negative pressure of 1.3 kg/cm2. (Test also conducted
at VJTI)
}
Pressure Test -
conducted after Production AT FACTORY. Pipes are tested
at 1.5 times the working pressure. (Test also conducted at
VJTI)
}
Indentation Test - conducted after Production AT VJTI.
}
Water Absorption Test - conducted after Production AT VJTI
on HDPE lining. Water absorption on PE coating is
not more than 0.1%.
}
Abrasion Test -
conducted after Production AT VJTI.
}
Impact Test - carried out with a steel ball
of 25 mm dia and 66 gm wt. dropped from a height of 100 cm
caused no damage to the pipe AT VJTI.
}
Tabor Abrasion (ASTM D 4060) for Raw Material tested for 1000 revalutions using
weight of 1900 gms - Test result 0.40 gms AT UDCT.
}
Adhesion Test (ASTM D - 4541) - Test result inside & outside 16 kg/cm2 -
UDCT.
}
Hot Water test for Raw Material at 800 C - test result No. delamination occur -
UDCT.
Note: To view big image click the picture
Burn Test
Lateral Connections
Result after Lateral Connections
Welding on H.D.P.E. Coating
Result on H.D.P.E. Coating after Welding
for
INTERNAL & EXTERNAL COATING OF
POLYETHYLENE ON M.S.PIPES
