Krautkrämer
SNUP systems

Ultrasonic inspection of Submerged Arc Welded (SAW) pipes

SAW pipes are the primary component in on and off shore oil and gas transmission pipelines. Structural integrity
is paramount in these constructions, and industry standards require inspection of the weld seam quality within
the pipe manufacturing process. These inspection standards are well established for carbon steel pipe and aredeveloping rapidly for constructions with corrosion resistant cladding on the internal surface of the pipe. Waygate
Technologies has a long history of innovation providing SNUP Systems for inspection of these safety critical assets.

Krautkrämer SNUP systems
The Krautkrämer SNUP Ultrasonic Testing Machine platform is available in a number ofconfigurations to test both longitudinally or helically submerged arc welded pipe. These systems
are constructed with Waygate Technologies’ industry leading Phased Array technology or optionallywith conventional ultrasonic methods to detect flaw types that can occur during the welding
process: longitudinal defects along the weld axis, transverse defects perpendicular to the weld axis,
and laminations in the heat effected zone on either side of the weld line.

Krautkrämer SNUP Systems are designed and built by atalented team with a long history of experience in automatedtesting machines in Cologne, Germany, where the machines
are still built today. The machines combine the experienceand quality of the Krautkrämer culture with the technology
and global reach of Waygate Technologies, now a digitalindustrial company.

Platform features• Phased Array or conventional ultrasound capable (sameUT Instrument compatible with both)“SNUP-LO” for inspection of Longitudinally
Welded (LSAW) pipe
The SNUP-LO can be used prior to pipe expansion to generatequality data of the manufacturing process as well as afterhydrostatic testing as a final quality inspection point.
Depending on a customer’s factory layout, SNUP-LO systems
can be constructed in a lifting frame configuration wherethe pipe is moved axially under the inspection heads or as aportal configuration where the pipe is held stationary and theinspection heads are moved axially along the pipe.

• Real-time strip chart visualization and recording of test
data for each inspection channel• Real-time Phased Array sector scan tool for quick andeasy setup and optimization of the ultrasonic sound path
• Motorized probe adjustment for automated setup of eachultrasonic probe position for predefined pipe geometries
greatly minimizing setup times for changeovers especiallywhen combined with Waygate Technologies’ Phased Arrayultrasonic method• Multi A-scan to view several channels at once foreasy calibration• Automated laser guided weld seam tracking following
both weld cap edges for improved inspection control• Stable ultrasonic coupling using controlled water gap andhardened wear shoes that ride on the actual pipe surface

Lifting frame

Portal2

“SNUP-SP” for inspection of Helically Welded(HSAW) pipe
The SNUP-SP is also available in two configurations providing
ultrasonic inspection of HSAW pipes either immediately
following the welder to acquire in-process quality data orafter hydrostatic testing as a final quality inspection point.
Both configurations are built as lifting frame solutions where
the pipe is moved both axially and rotationally below theinspection heads with positional correlation maintained by
SNUP-SP control system.
In addition to theinspection of the weld
seam and heat affectedzone (HAZ), the SNUPSP can be outfitted with
optional pipe end testing
capability.

Ultrasonic methods• Improved productivity for pipe change-overs due toimplementation of the sectorial scan function with far lessmanual intervention required during calibration cycles• Significantly less changeover times: Phased Array probes
are not physically swapped in and out for different pipegeometries• Higher repeatability and test quality due to electronic
optimization of the sound beam for given indications
and further test automation using software features andmotorized probe adjustment• Lower false call rates due to higher signal to noise ratio(SNR) of the inspection• Future proof electronic beam angle steering to be tailoredto specific testing requirements without mechanicalchanges• Smaller footprint of the overall testing machine

HSAW inspection

In excess of 80 Krautkrämer SNUP series testing machines
have been installed globally to inspect safety critical SAW
pipe since the year 2000. Since 2015 our customer needs
have driven that phased array ultrasound has become thenew standard. Whatever the technical requirements of ourcustomers, sustainable solutions for individual customer
application needs and pipe constructions can be obtainedwith this reliable and innovative equipment. While thegeneral ultrasonic properties are common to both Phased
Array and conventional ultrasound, Phased Array provides
several advantages:• Beam optimization by electronically changing aperturesand natural focus of phased array probes• Matrix Array upgradeable for electronic 2D steering andoptimization of the ultrasonic sound beam
• RotoArray option for on-bead transverse flaw detection•Phased Array On-bead Wheel Probe3

Technical data
Krautkrämer USIP|xx ultrasonic instrument

Typical specimen dimensions
SNUP–LOSNUP–SP

Pipe diameter>355 mm>355 mmWall thickness≤ 80 mm≤ 25.4 mm

Pipe lengthmin. 5 m(typically 12 - 18 m)

min. 5 m(typically to 24 m orcontinuous feed)

Weld seam width≤ 150 mm

≤ 35 mmOther values available upon request

Types of defects• Longitudinal and transversal flaws in the weld seam
(optional oblique flaws if required)• Laminations in the heat affected zone (HAZ)• Optional pipe end testing for laminations and longitudinalcracks
Typical specifications• API 5L/ISO 3183

• One instrument for either linear Phased Array, matrix array,or conventional ultrasonic probe configurations• Modularity based on a 64 parallel channel ultrasonic cardwith up to 12 cards per ATCA chassis scalable up to 6144
total channels with Phased Array apertures up to 256channels• 8 parallel data evaluations per channel card per ultrasonicshot cycle• 80 Mbyte/sec transfer rate of an A-scan with 4096 points
at 5 khz and 16-bit resolution — the necessary data at thenecessary speed to support real-time process control• Configurable up to 24-bit dynamic range• 5 gates per evaluation channel• DNV-OS-F101• Shell DEP-31.40.20.37-Gen.
• Chevron, Aramco• IOGP S-616• Local gain feature with individual gain setting per gate
• Easy to operate Microsoft Windows™ GUI• Dual threshold evaluation possible (warning/alarm)• Extensive monitoring functions, self-test and diagnostic
support

Copyright 2021 Baker Hughes Company. All rights reserved.
BHCS39019		

The USIP|xx ultrasonic instrument platform is the fastest,
most capable, systems level instrument available in today’s
market enabling the industry leading performance of the
Krautkrämer SNUP Systems.

(06/2021)

waygate-tech.com