The Roc-Master Advantage
Roc-Master - one of the most experienced professional manufacturer of CRA CLAD pipes, flanges, fittings and bends as well as forged flanges in all materials, special subsea forgings, and all type of fasteners, coated bolts & nuts, Roc-Master is also a supplier who provides Weld Overlay, precision machining services, as well as prefabrication (spooling) for clad and nonclad components. Furthermore the company is an OVERALL SUPPLIER for the total packages used in the onshore, offshore, oil & gas industries, chemical and petrochemical industries.
Pig retainer is mainly used for pigging operations of submarine pipelines, which are more than 1,500 meters underwater. By rotating the handle of the manipulator, the pig lock pin is extended into the pipeline to block the pigging ball and prevent the pigging ball from moving in the pipeline.
J collar is a forged component used to grip the pipe in order to install subsea pipeline in deep water using J-LAY mode system. It is a safe and reliable way to install very heavy pipelines.
In Nov, 2008, The flange installation instruction prepared by our technical dept. lays a foundation for better improving the quality of after-sales services. please go to our 