Case Study: Garlock Style 204 MAX Prevents Critical Failures in Oil Transfer Systems

INDUSTRY

Oil & Gas – Wharf Hose Reel Systems

OPERATING CONDITIONS

Size: 8.000" ID x 6.000" FF
Temperature: Up to 250°F
Media: Paraxylene
Pressure: 275 PSI (rated to 365 PSI)
Application: Hose reel connected to piping system

BACKGROUND

A large oil company in the southern United States was using a competitor’s expansion joint on a hose reel at a riverfront wharf. During normal transfer operations, operators observed rubber hanging from the joint after clearing the hose. Inspection revealed ice buildup and early signs of failure inside the competitor’s joint, creating a safety risk and raising concerns about reliability. Given the critical role of the hose system in oil transfer operations, the customer sought a robust sealing solution with greater reliability and predictable service life.

CHALLENGES FACED

The previous joint’s failure raised immediate safety concerns during hose clearing operations. Ice accumulation inside the joint, combined with visible material degradation, signaled a risk of unplanned downtime and potential equipment damage. The customer required a replacement rated for at least 365 PSI and capable of withstanding dynamic movement and cryogenic exposure. In addition to reliability, the customer needed a way to anticipate future failures to avoid unexpected disruptions.

SOLUTION AND BENEFITS

Garlock recommended the Style 204 MAX Expansion Joint with FKM Tube, rated to 365 PSI with a 4:1 burst safety factor. To support the customer’s predictive maintenance goals, Garlock cycle tested the expansion joint under simulated field conditions. Over five days, the joint was tested for 8 hours per day at 200 PSI, undergoing 34,584 movement cycles at its maximum ratings of 0.750” compression and 0.375” elongation.

 

At the end of testing, the joint showed minimal wear and no leaks, enabling Garlock to confidently estimate a 5 to 7 year service life under rated conditions. The customer received a detailed report and has since implemented the 204 MAX into their inspection and replacement program. The product’s high-pressure performance, cryogenic resistance, and predictable durability offered a proven, safe solution for this critical application.