American AFC Grooved Fire Butterfly Valve – BFG-300 and BFG-301

The American AFC BFG-300 and BFG-301 Grooved Fire Butterfly Valves are designed to control and isolate water flow within fire protection piping systems.

The valve features a compact design, manual gear operation, a clear valve-position indicator and a built-in supervisory switch.

This product page combines two models from the same product family:

• BFG-300.
• BFG-301.

The catalogue presents both models as one product family with the same image and main technical specifications, so they are grouped under one product page.

Key Features:

• Fire protection butterfly valve.
• Grooved-end connections.
• Design complies with API 609.
• Ductile iron disc fully encapsulated with EPDM.
• Bubble-tight shutoff.
• Flag-type valve-position indicator.
• Low operating torque.
• High cycle life.
• Built-in supervisory switch.
• Suitable for connection to fire alarm and monitoring systems.
• Manual gearbox operation.
• Top gearbox mounting flange to ISO 5211.
• Groove dimensions comply with AWWA C606.
• Working pressure of 300 PSI or 21 bar.
• Operating temperature from 0°C to 80°C.
• Suitable for indoor and outdoor use.
• Fusion-bonded epoxy coating to AWWA C550.
• UL Listed as shown in the catalogue.
• FM Approved as shown in the catalogue.
• Available in sizes from 2 to 12 inches.

Operation:

The valve is operated using a manual handwheel connected to a gearbox.

Rotating the handwheel causes the gearbox to rotate the internal valve disc through an angle of up to 90 degrees:

• When the disc is parallel to the water flow, the valve is open.
• When the disc is perpendicular to the water flow, the valve is closed.

The external indicator provides a visual indication of valve position. The built-in supervisory switch can also send a signal to the fire alarm or monitoring system when the valve moves away from its required position.

Available Sizes:

• 2 inches.
• 2.5 inches.
• 3 inches.
• 4 inches.
• 6 inches.
• 8 inches.
• 10 inches.
• 12 inches.

Valve Construction Materials:

• Valve body: Ductile Iron ASTM A536 65-45-12.
• Stem shaft: Stainless Steel 416.
• Disc: Ductile iron encapsulated with EPDM.
• Stem O-rings: EPDM.

Gear Operator Materials:

• Gear housing: Ductile Iron ASTM A536 65-45-12.
• Gear cover: Ductile Iron ASTM A536 65-45-12.
• Worm: Carbon Steel AISI 1045.
• Worm gear: Ductile Iron ASTM A536 65-45-12.
• Handwheel: Ductile Iron ASTM A536 65-45-12.

Supervisory Monitoring:

The valve includes a built-in supervisory switch that can be connected to a fire alarm system to monitor the valve position.

This helps detect unauthorized or accidental movement of the valve from the fully open position toward a partially or fully closed position.

Applications:

• Automatic sprinkler systems.
• Fire hydrant systems.
• Fire hose networks.
• Fire pump rooms.
• Fire protection water-distribution lines.
• Fire network zone isolation.
• Grooved piping systems.
• Indoor and outdoor fire protection systems.
• Systems requiring valve-position monitoring from the fire alarm panel.

Standards and Approvals Shown in the Catalogue:

• UL Listed.
• FM Approved.
• API 609.
• AWWA C606 for grooved-end dimensions.
• AWWA C550 for the protective coating.
• ISO 5211 for the operator mounting flange.

The appropriate valve size should be selected according to pipe diameter, flow rate, working pressure, hydraulic calculations and project requirements.