Butterfly valves are commonly used in fire sprinkler systems for their compact design, ease of operation, and reliable flow control capabilities. While they may not be as prevalent as other types of valves in fire sprinkler systems, there are instances where butterfly valves are used. Here are some examples of sprinkler butterfly valve used in fire sprinkler systems:

Grooved Butterfly Valve:

This type of butterfly valve has grooved ends, allowing for quick and secure installation using grooved couplings. Grooved butterfly valves are often used in fire sprinkler systems where fast and efficient installation is required.

Lug Butterfly Valve:

Lug butterfly valves have threaded inserts or lugs on each side of the valve body. These lugs allow for easy installation and removal of the valve from the pipeline without affecting the adjacent components. Lug butterfly valves are commonly used in fire sprinkler systems and are suitable for both bi-directional and uni-directional flow applications.

Wafer Butterfly Valve:

Wafer butterfly valves are designed for use between flanges and do not have lugs or threaded inserts. They are thin and lightweight, making them suitable for applications where space is limited. Wafer butterfly valves are often used in fire sprinkler systems due to their compact design and cost-effectiveness.

High-Performance Butterfly Valve:

In certain fire sprinkler systems that require higher flow rates or operate at higher pressures, high-performance butterfly valves may be used. These valves are designed to handle more demanding conditions and provide enhanced flow control capabilities. They often feature a double-offset or triple-offset design for improved sealing and reduced torque requirements.

It’s important to note that the selection of a specific butterfly valve for a fire sprinkler system should be based on various factors, including system requirements, applicable codes and standards, and the recommendations of fire protection professionals. The choice of valve type should align with the specific needs and specifications of the fire sprinkler system to ensure proper operation and compliance with safety regulations.