About
Heavy-Duty Expansion Joint & Flow Compensation Manufacturing
Graylock Equipment Ltd is a dedicated manufacturer of expansion joints, flexible metal hoses, and related flow compensation equipment built for thermal movement, vibration, and mechanical stress across demanding industrial pipelines. We operate our own fabrication and testing facilities, giving us full control over the production process, from bellows forming to final pressure testing.
We don’t just supply components. We manufacture equipment that protects pipeline integrity across refineries, power plants, shipbuilding, and industrial processing facilities worldwide.
Manufacturing Capabilities
Specialist Materials
We work extensively with 304, 316, and 321 stainless steel, along with carbon steel and specialty alloys, to hold up against corrosive, high-temperature, and high-pressure service.
In-House Testing
Every expansion joint and hose is tested on-site for pressure integrity and movement performance to meet international design and safety standards.
Engineering Precision
Our facility is equipped to handle complex bellows forming and fabrication, ensuring every weld end, flanged, or type-approved joint is built to exact technical specifications.
Proven Reliability
Our equipment is installed in environments where pipeline failure is not an option, absorbing thermal movement and vibration with minimal maintenance over the long term.
Our Focused Markets
Marine & Shipbuilding
Manufacturing type-approved expansion joints and flexible hoses for cooling systems, exhaust lines, and piping on commercial and naval vessels.
Offshore Energy
Delivering expansion joints and hoses rated for oil platforms and FPSOs, where thermal cycling and high pressure are constant factors.
Industrial Processing
Providing reliable flow compensation for chemical plants and refineries handling high-temperature and aggressive media.