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Model BFA (31H) is a lug type butterfly valve. Its high strength through-stem design allows easy disassembly and reduced disc to stem failure. The superior quality and high pressure manual butterfly valves meet today's Heating, Ventilating & Air Conditioning (HVAC) requirements. It's rated for 250 psi bidirectional dead end service. Lug valves are drilled and tapped to meet ANSI Class 125/150 and PN16 flanges.
Unit of Measure

Specifications

Size

N/A 2 in2-1/2 in3 in4 in6 in8 in

Type

N/A BFA- Butterfly Valve - Cast Iron Lug Style Flanged Handle
Pressure Ratings1 N/A 2 to 12 in50 to 300 mm250 psi17.2 bar

Velocity Limits for On/Off Services (Fluids)

N/A 30 ft/s9 m/s

Velocity Limits for On/Off Services (Gases)

N/A 175 ft/s54 m/s

Specification No.

N/A COMP-SPEC-BFA-001

Material Specifications

Body

N/A Cast Iron

Seat

N/A Bonded EPDM

Disc

N/A Aluminum-Bronze

Stem

N/A 416 Stainless Steel
  • 1 Bidirectional bubble-tight shut off & dead-end service