SHC has particular expertise in the design and fabrication of pig traps, especially those required to meet more complex specifications and design codes.
SHC  was responsible for all aspects of design, testing and fabrication. These pig traps were complex and included a range of ancillary components and pipework. As part of this design and build,SHC also carried out all testing to meet the necessary industry standards, including Pressure Testing, HIC (Hydrogen Induced Cracking) and SSCC (Sulphide Stress Corrosion Cracking) Testing.Also fitted to each pig launcher and pig receiver is our Intrusive Pig Signaller which confirms the launch or receipt of a pig from or into the pig trap.
Launchers and receivers, off-shore and onshore are available. All units are designed and manufactured to pipeline and vessel design codes including:
•  ASME VIII 
•  ASME B31.3, B31.4, B31.8
Our capacity ranges from 2" NS to 54" NS, ANSI Ratings 150# to 2500# and API, using carbon, stainless and alloy steel materials.
SHC is the qualifited fitting factory authorized by the British GD company for the quick-opening closure,and meet clients, higher requirements for safety on fitting the GD patent products Bandlock TM& Rotalok TM.