AV 4000 Series Accessories - Square Operating Nut for 4000 & 3700 Series Ball Valves (1 1/2" - 10")

Square Operating Nuts for 4000 & 3700 Series Ball Valves Reliable Underground or Wrench-Driven Operation American Valve’s Square Operating Nuts are the ideal solution for buried service or applications requiring wrench-operated valve control. Designed for compatibility with both 4000 Series and 3700 Series flanged ball valves, these accessories allow for quick and secure manual operation using a standard valve key or wrench—perfect for underground or restricted-space installations. 🔩 Available Sizes: Square Operating Nut for 4000 Series 1½″–2″ and 3700 Series 2″ Square Operating Nut for 4000 Series 2½″–4″ Square Operating Nut for 4000 Series 6″–10″ 🛠️ Key Features: Designed for direct replacement of standard handles Enables easy operation with a valve key or wrench Ideal for underground and flush-mount installations Heavy-duty metal construction for long-term durability Simple installation with secure fit on compatible valve stems Compatible with American Valve’