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Fire protection butterfly valves are essential components in water-based fire protection systems, providing reliable shut-off and flow control for fire sprinkler and standpipe systems. These control valves use a rotating disc operated by a stem and an indicating handle.
QRFS models include a built-in electric tamper switch for supervisory monitoring, helping ensure the valve remains open to maintain proper water flow and lengthening NFPA-required inspection timelines. Our FM Approved and UL listed butterfly valves provide dependable performance across a wide variety of systems and piping configurations.
QRFS’s collection includes grooved butterfly valves, wafer butterfly valves, and threaded butterfly valves designed to meet the needs of modern sprinkler systems. Various product options are engineered for compatibility with standard pipe sizes while offering streamlined installation and maintenance. Whether used as a main control valve or for sectional isolation, butterfly valves offer an installation-friendly alternative to gate valves without sacrificing reliability.
Choosing the right fire protection butterfly valve depends on your system’s layout and connection needs. Wafer butterfly valves can offer a compact fit between flanges and are more economical, grooved butterfly valves can speed up installation and maintenance, and threaded butterfly valves are ideal for smaller system connections. All options support efficient flow control and dependable operation across various fire protection applications.
Each butterfly control valve is built for long-term durability in demanding fire service environments. Our selection includes models with pre-installed tamper switches for seamless fire sprinkler and fire alarm integration. As a trusted fire protection butterfly valve supplier, QRFS stocks leading brands and rapidly ships products so system owners, contractors, and facility managers can get systems installed or back online quickly.
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Additional QRFS guides:
What is a butterfly valve in a fire protection system?
A butterfly valve is a type of control valve used in fire protection systems to permit or prevent water flow via a rotating disc inside the valve body. The disc turns 90° to open or close the valve, providing a quick method to isolate sections of piping. Butterfly valves are lightweight and, as all NFPA-compliant control valves must, visually indicate whether they are open or closed.
Why are butterfly valves important in fire sprinkler systems?
Butterfly valves help control and isolate waterflow to turn on or turn off the water supply, enabling system operation or maintenance. They also provide clear visual feedback of the system’s off or on status, which is critical for safety and compliance. Because closed valves are a leading cause of system failure, control valves are commonly electrically supervised via tamper switches, which automatically send an alert if the valve’s status changes.
What is the difference between wafer and grooved butterfly valves?
The main difference is how they attach to the piping: grooved butterfly valves use grooved couplings that install quickly without flanges in grooved pipe systems. In contrast, wafer butterfly valves sit between pipe flanges and require bolts. Grooved valves generally install faster and are easier to maintain, whereas wafer valves tend to be more economical and may fit more easily into some tight spaces. Both perform the same function once installed.
Are wafer and grooved butterfly valves equally approved for fire protection systems?
Yes. Both wafer and grooved butterfly valves can be installed in NFPA-compliant fire sprinkler and standpipe systems when paired with compatible, listed fittings. The key is using the correct connection type for the piping layout and meeting applicable standards.
Do butterfly valves include supervisory features?
Many fire protection butterfly valves include tamper (aka supervisory) switches that may connect to a fire alarm control panel to indicate the valve’s open or closed position. These switches help ensure that control valves stay open and send alerts if the valve is closed unexpectedly. Closed valves prevent water delivery in an emergency, so supervision can be crucial.
What role do butterfly valves play in system inspections, testing, and maintenance?
Butterfly control valves are essential for shutting off a system before it is drained for maintenance, inspection, or testing (ITM). These control valves are also commonly used to isolate sections of piping for ITM tasks without draining the entire fire sprinkler network. Because they provide a clear visual indication of open or closed status and quick operation, they also help streamline routine inspections.
