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The Wilkins 2-F49BR is a 2 inch Fire Powerball butterfly sprinkler control valve designed to provide reliable system shutoff for fire protection systems during maintenance and repair operations.

Key Specifications:

• Size: 2 Inches
• Maximum Working Pressure: 300 PSI
• Notable Certifications: UL Listed, C-UL, FM Approved
• End Connections: Threaded NPT ends
• Operation: 1/4 turn anti-water hammer

Other Related Variants:

• 1-F49BR: 1 Inch version
• 114-F49BR: 1 1/4 Inches version
• 112-F49BR: 1 1/2 Inches version
• 212-F49BR: 2 1/2 Inches version

Materials:

• Main body: Bronze ASTM 584 C83600
• Disc: 304 Stainless Steel
• Handwheel: ASTM A216 WCB
• Seat: ASTM D2000 Viton
• Indicator: Powder Metal FD0205 95HT
• Gearbox Housing and Cover: Brass ASTM B16 36000

Typical Installation:

Zurn 2-F49BR Fire Powerball Butterfly valves are installed in fire sprinkler systems to provide system shutoff capability for repair and maintenance purposes. The valve should always remain in the open position when the system is active. Tamper switches signal any movement from the full open position to an alarm control panel and auxiliary equipment such as indicating lights or audible alarms.

Standards Compliance:

UL Listed; C-UL Listed; FM Approved; NFPA 13; NFPA 7

Features & Benefits:

• Anti-Water Hammer Design: Slow closing 1/4 turn operation prevents water hammer and system damage.
• Integrated Supervisory Alarm: Dual tamper switches signal valve position changes to alarm control panels and auxiliary equipment for immediate notification.
• Durable Construction: Bronze body with stainless steel disc and Viton seat ensures long-lasting performance in fire protection applications.
• High Pressure Rating: 300 PSI maximum working pressure provides reliable operation in demanding fire sprinkler system installations.

FAQ

Q: What is the proper valve position during normal fire sprinkler system operation?

A: The Zurn 2-F49BR valve should always be in the full open position when the fire protection system is active. The integrated tamper switches will signal if the valve is moved from this position.

Q: Can this valve be installed in any orientation?

A: Yes, the valve can be installed in any orientation in a piping system with standard ASME B1.20.1 NPT or standard roll or cut grooved pipe connections.

Q: What pipe schedules are compatible with this valve?

A: The Wilkins 2-F49BR is intended for use with ANSI B36.10 Schedule 40 and Schedule 80 pipe in the specified size range.

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