Grayloc® Clamp Connectors

Since the 1950s, the Grayloc® Clamp Connector has provided a field-proven alternative to conventional flanges that is lighter, smaller, quick to assemble and easier to maintain.

With stringent engineering processes and the highest quality industry standards, Grayloc® Clamp Connectors offer unparalleled design quality and reliability.

Metal To Metal Icon |  | Metal To Metal Icon

Metal-to-metal Sealing Technology

Eliminate Fugitive Emissions Icon 2 Edited |  | Eliminate Fugitive Emissions Icon 2 Edited

Eliminate fugitive emissions

Reduce Installation Time Icon 2 Edited |  | Reduce Installation Time Icon 2 Edited

Reduce installation time

Decrease Cost Icon |  | Decrease Cost Icon

Decrease maintenance costs

Metal-to-Metal Bore Seal Technology

Only four bolts and low assembly torques
Only four bolts and low assembly torques
Rotatable clamp with no bolt holes to align
Rotatable clamp with no bolt holes to align
Reusable and Zero leakage metal-to-metal seal
Reusable and Zero leakage metal-to-metal seal
Space- and weight-saving design
Space- and weight-saving design

Reliable, Field-Proven Connection Solutions

Optimized Performance

  • Metal-to-metal seal – zero leakage
  • Self-energized and pressure-enhanced seal
  • Extreme pressures and temperatures

Significant Cost Savings

  • Space- and weight-saving design
  • Integrates into any fitting or third-party products
  • Reusable seal rings
  • Low inventory requirements

Simple Fabrication and Assembly

  • Only four bolts and low make-up torques
  • No bolt holes to align
  • Accessible and rotatable clamp
  • Visual indicators of proper assembly
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Installation and Maintenance Procedures Overview

Proper assembly of the Grayloc connector is the key to pressure containment of the connection.

Contact Us

Contact Us | Grayloc® Clamp Connectors

Company page Since our founding in the early 1960s, Oceaneering has expanded and grown globally to service several industries such as the offshore energy industry, defense, entertainment, material handling, aerospace, science, and renewable energy industries. In 1964, Mike Hughes and Johnny Johnson formed a Gulf of Mexico diving company called World Wide Divers. The company grew in response to increasing demand for their services and in 1969 merged with two other diving companies to form Oceaneering International, Inc. To solve the toughest challenges, we do things differently, creatively, and smarter. As your trusted partner, our unmatched experience and truly innovative portfolio of technologies and solutions give us the flexibility to adapt and evolve, regardless of market conditions. Our mission is to solve the unsolvable. We thrive by creating industry-changing technically creative solutions for the most complex operational challenges under water, on land, and in space. Our five core values establish a common culture and demonstrate what is most important for us as a company. Since the beginning, the company has transformed from a small regional diving company into a global provider of engineered products and services. Today, we develop products and services for use throughout the lifecycle of an offshore oilfield, from drilling to decommissioning. We operate the world's premier fleet of work class ROVs. Additionally, we are a leader in offshore oilfield maintenance services, umbilicals, subsea hardware, and tooling. We also serve the aerospace, defense, and theme park industries. Underpinning everything we do, safety is not only the foundation of our core values, but it is vital to our unmatched performance record and company culture. The industries we serve are as diverse as they are complex. Whether we are engineering deepwater umbilicals or developing robotics for aerospace applications, the safety and health of our employees, vendors, and customers is an integral part of our day-to-day business. If we are working, then our responsibility is to be working safely. Since our inception in 1964, we have placed a high value on employee safety—from diving services and subsea inspection to vessel-based installation operations. We have and will continue to evolve not only our health, safety, and environmental (HSE) processes, but those of the industries in which we work. Although we have been fatality-free since 1999, our HSE journey goes beyond statistics. As our portfolio of services has grown, we have continued to prioritize and advance our approach to HSE.