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Overview

Corrosion Mapping Solutions

Phased array testing helps make corrosion inspection fast and efficient. Our solutions enable inspectors to be more productive and collect higher resolution data with fully encoded C-scan imaging.

The HydroFORM^® scanner, FlexoFORM^™ scanner, RexoFORM wedge, and Dual Linear Array^™ probe offer efficient inspection options for detecting loss of wall thickness due to corrosion, abrasion, and erosion. Our solutions can also detect mid-wall damage, such as hydrogen-induced blistering or manufacturing-induced laminations, and easily differentiate these anomalies from loss of wall thickness.

Specifications Comparison

	DLA Corrosion	DLA Corrosion	FlexoFORM	HydroFORM	RexoFORM	RollerFORM
Phased array probe	REX2	REX1	FA1	7.5L64-I8	A12, A14	WP1
Maximum one-line scan coverage (width)	60 mm	32 mm	64 mm	60 mm	38 mm (A12), 60 mm (A14)	51.2 mm
Delay line medium	Rexolite	Rexolite	Water	Water	Rexolite	Water/acoustic polymer
Delay line height	7.5 mm	7.5 mm	9 mm	14 mm or 38 mm	20 mm	25 mm
Position of 2nd interface echo (in steel)	N/A	N/A	34 mm	Short plate: 54 mm Tall plate: 114 mm	50 mm	28 mm
Max. recommended thickness (in steel)	30mm (5 deg. roof) 95 mm (1 deg. roof)	30mm (5 deg. roof) 95 mm (1 deg. roof)	30 mm	50 mm (14 mm delay line) 150 mm (38 mm delay line)	46 mm	25 mm
Typical near-surface resolution (1/8 in. FBH)	1 mm	1 mm	2 mm	1.5 mm	2 mm	3 mm
OD inspection range	4 in. and greater	4 in. and greater	4.5 in. and greater	4 in. and greater	4 in. and greater	4 in. and greater
ID inspection range	10 in. and greater (16 in. with index encoder)	N/A	N/A	10 in. and greater (16 in. with index encoder)	N/A	20 in. and greater
Contact device with surface	Wheels	Carbides	Wheels	Wheels	Carbides	Wheels
Footprint	110 mm x 130 mm	40 mm × 65 mm	92 mm × 230 mm	110 mm x 130 mm	40 mm x 95 mm	144 mm × 144 mm
Scan direction	Circumferential	Circumferential	Longitudinal	Circumferential	Circumferential	Longitudinal and Circumferential
Scan speed at 1 mm x 1 mm resolution	123 mm/s	300 mm/s	123 mm/s	123 mm/s	123 mm/s	123 mm/s