What Does 150# RF Flange Mean?

150# RF flange is common terminology for a 150-pound raised face flange connection used in many piping systems.

150# pressure class

The 150# designation refers to a common flange pressure class. Buyers should always confirm the required flange class in the project specification.

  • Common piping specification
  • Must match system requirement
  • Not interchangeable with every flange type

Raised face connection

RF means raised face, a common flange face style that must match the mating flange and gasket requirements.

  • Raised face flange surface
  • Compatible gasket requirements
  • Bolted connection

Using 150# RF pump connectors

Flexible metal hose pump connectors may be built with 150# RF flanges on one or both ends depending on the system design.

  • Flange x flange assemblies
  • Custom flange combinations
  • Mechanical and industrial systems

Next step

Review the standard assemblies on the Products page or use Assemble Your Own Hose to request a custom configuration.