Features The single-layer FBE coating steel pipe has
properties of high electric strength, acid resistance, alkali
resistance, long service life, high quality and salt tolerance. Due
to its low impact resistance, bad bend ability and high water
absorption rate, it can’t be fixed in a place where the groundwater
level is high. The FBE coating layer can be classified into
ordinary level and strengthened level.
Inspection methods
The exterior appearance of the coating layer of each pipe should be
visually inspected. Smooth surface, even color, no bubbles, no
cracks and no shrinkage symbolize the qualified FBE coating steel
pipe. The magnetic thickness gauge is utilized to measure the
thickness of the four points which are equally distributed around
the circumference orientation of three randomly selected places.
The leakage inspection is employed by on-line detection of EDM
spark locations. The set value for voltage is 5v/um.
