Dwyer Instruments SERIES BFC Catalog Page

Series

A

B

NPT CONNECTION

BFC

Brass Flap Check Valve

Economical, Compact, Backflow Protection

Series BFC Brass Flap Check Valve is an economical check valve for both commercial
and industrial application. Quality brass body and stem construction allow for long service
life and reliability. Ideal where backflow could potentially cause damage to equipment by
yielding reverse flow. Pressure in the line moves the flap off of the seat, opening the valve.
When the inlet f low comes to a halt, back pressure moves the f lap back onto the seat,
stopping the flow. Designed to provide excellent flow characteristics with minimal
turbulence and pressure loss while maintaining its ability to prevent backflow.

Model
BFC-00
BFC-01
BFC-02

VALVES

BFC-03
BFC-04
BFC-05
BFC-06
BFC-07

Pipe Size

1/2˝
3/4˝
1˝
1-1/4˝
1-1/2˝
2˝
2-1/2˝
3˝

NPT

A

Size

in [mm]

1/2˝

1-59/64 [49.00]

3/4˝

2-1/4 [57.00]

1˝

2-43/64 [68.00]

1-1/4˝

2-63/64 [76.00]

1-1/2˝

3-25/64 [86.00]

2˝

3-15/16 [100.00]

2-1/2˝

4-9/64 [105.00]

3˝

4-7/8 [124.00]

SPECIFICATIONS
Service: Gases, steam and liquids compatible with wetted materials.
End Connections: 1/2˝ to 3˝ NPT.
Maximum Pressure: 200 psi (13.8 bar); 150 psi steam (10.3 bar).
Temperature Limit: -20 to 180°F (-28.9 to 82°C).
Wetted Materials: Body and disc: Brass.
Other Materials: Cap and nut: Brass.

B
in [mm]

1-27/64 [36.00]
1-17/32 [39.00]
1-49/64 [45.00]
2-3/32 [53.00]
2-11/32 [59.50]
2-5/8 [66.50]
3-1/64 [76.50]
3-13/64 [81.50]