BF series butterfly valves with either wafer body or lugged body are available from 2" to 48" sizes with EPDM or Buna-n seals. the wafer body is made of cast iron and the lugged body is made of ductile iron, thus these are typically used for water service and non-aggressive industrial liquids containing few particles. The resilient seat design (also referred to sometimes as concentric or zero-offset) has either Buna-n or EPDM deformable seat with o-ring stem seal. The integral ISO 5211 actuator pad can be used to easily install an electric or pneumatic actuator.
The applicable design standards include ASME B16.10, B16.42 and MSS-SP25/67 with testing standards API 598 and API 609.
One piece through stem design: increases the strength, stability and accuracy of the disc positioning.
Open/Closed Safety Lock-Out Ready
Position indicator for lever operators
Extended Neck: provides an additional 2" of space for pipe insulation
Manual Actuators: gear, lever, chain wheel
Electric or pneumatic actuators