What makes the SPO compact flanges the perfect choiceThe SPO compact flange is a 100% static connection thanks to its metal-to-metal sealing system and bevelled flange face. It has better fatigue properties than the actual weld to the piping. SPO compact flanges are designed to be stronger than the pipe they are connected to and are a significally smaller and lighter alternative to the ASME flanges. The most appropriate connector type for risers. The SPO CF is the only flange meeting the strict design requirements in DNV-OS-F201 (Dynamic Risers) and ISO 13628-7. A reliability evaluation report from DNV (DNV report 12FQG2F-6) concludes that the SPO CF is considered to be in the magnitude as a welded connection with respect to leakage probability.



SPO compact flanges on Snorre A TLPSPO CF was the preferred connector for production and export risers for the Snorre A TLP. Riser installation started in 1991 and totally 1100 SPO flanges have been installed on the risers on this platform. Sizes: 9 5/8” and 10 3/4”. Each riser consist of 23 sections and HX sealrings were used.

SPO Compact flanges for flexible flowlines risersThe first use of SPO Compact flanges on flexible flowlines and risers dates from the early 90’s, where they have been installed on Saga’s Snorre A and Hydro’s Troll B project. Since then, compact flanges have been frequently used both on flexible risers and flexible flowlines. SPO CF is the end connection preferred by the world leaders within the field of flexible pipe and risers.

SPO Compact flanges used for titanium stress joints (RTI)RTI Energy Systems, Inc is the world leader in design and supply of state of the art deep water and ultra-deep water riser titanium stress joints. There has been a close cooperation between RTI and Vector (SPO) since the mid 90’s confirming SPO CF as the most reliable flange on the market today. State of the art flanges used in combination with state of the art riser technology.