Compact Flanges

Compact FlangesCompact flanges are used in critical applications where size and strength matter. Their compact design can provide significant size and weight savings over conventional ASME or API flanges...but most importantly, a properly designed compact flange and metal-to-metal seal will have superior sealing and load-carrying capacity for critical, fatigue-driven applications on Spars and TLP's.


OPT pioneered the use of compact flanges in deepwater offshore risers, including the first ever use in Spar riser joints and specialty joints. OPT designs each compact flange using 3D finite element analysis to meet the customer’s exact requirements and specifications. Using FEA assures that there is no relative motion between the flange faces or the flange seal pocket and seal—factors critically important to reliability and long life.


Contact OPT today for more information or to discuss your compact flange application.