Siral BFV Series

The Siral C and C...L series butterfly valves support a wide range of commercial and industrial applications. With standard lug style design they are optimized for ANSI 150 piping systems. The control actuators in this series also offer Nema 4X protection for more demanding environmental conditions.


  • Multiple bushing shaft centralization design – Maintains tight concentricity tolerance over life which reduces possibility of leakage and torque drift.
  • Cartridge seat design contains an elastomer bonded to a synthetic polymer stabilizing ring which reduces seat degradation by eliminating movement of the elastomer.


  • Reduce Cartridge cross sectional area allows for a more controlled range of expansion hence leading to more stable torque and increased product life.
  • Disc precision machined contact profile to help maintain consistent disc to seat relationship through life


  • 2-way and 3-way
  • Cv range: CL 2" to 12" and C 2" to 30"
  • Size range 2” to 30”
  • Control: On/Off, Floating Point, 2-10VDC

A system where a product is completely controlled internally by Siral from the conception phase, through all stages of development and manufacturing. This system is defined by a synchronized and singular focus on the end user solution throughout all facets of the design, development and all manufacturing processes.

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