Valves
BF-250 Butterfly Valve
BF-250
Wafer butterfly valve for large-bore isolation.
Nominal size
DN 50 – DN 600
—
Pressure class
PN 16
—
Temperature
-10 to 120
°C
Operation
Lever / gear
—
Overview
The BF-250 is a concentric wafer-type butterfly valve with a resilient seat. Its short face-to-face length and light weight make it practical for large lines.
A lever suits small sizes, and a worm gear is available for larger bores.
Key features
Short, lightweight wafer body
Replaceable resilient seat
Lever or gear operation
Lug option for dead-end service
Datasheet
Technical specifications
Illustrative demonstration data. Units are shown with each value; confirm all duty and material data against the project datasheet before specifying.
Dimensions
Nominal size
DN 50 – DN 600
Dimensions
End connections
Wafer or lug, PN10/16
Ratings
Pressure class
PN 16
Ratings
Temperature
-10 to 120 °C
Operation
Manual
Lever to DN 200; gear above
Operation
Top works
ISO 5211
Mass
DN 200
12 kg
Mass
DN 600
95 kg
Materials of construction
Body
Ductile iron
Disc
Stainless steel 316
Seat
EPDM
Stem
Stainless steel 420
Standards
Design reference: EN 593 (illustrative)
Operating conditions
Water, cooling water and neutral liquids.
Tell us the duty point and we will propose the equipment.
Send flow, head or pressure class, fluid and temperature. A demonstration form: connect your own destination before launch.