
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:
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Square Operating Nut for 4000 Series 1½″–2″ and 3700 Series 2″
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Square Operating Nut for 4000 Series 2½″–4″
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Square Operating Nut for 4000 Series 6″–10″
🛠️ Key Features:
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Designed for direct replacement of standard handles
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Enables easy operation with a valve key or wrench
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Ideal for underground and flush-mount installations
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Heavy-duty metal construction for long-term durability
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Simple installation with secure fit on compatible valve stems
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Compatible with American Valve’s ISO 5211 mounting pad
🏗️ Applications:
Commonly used in municipal water systems, commercial plumbing, fire protection systems, and industrial facilities where handwheel or chain operation isn’t practical.
✅ Make valve control easier and more accessible—choose American Valve Square Operating Nuts for dependable, low-profile manual actuation.
Warranty:
5 Year Manufacturers Warranty
Questions?
Speak with an expert
1-888-615-0755