 
            AV 4000 Series Accessories - Square Operating Nut for 4000 & 3700 Series Ball Valves (1 1/2" - 10")
 Most Items Ship Same Day 
        
      
      (Warranty, Return and Refunds)
         Most Items Ship Same Day 
        
      
      (Warranty, Return and Refunds)
      
          
    
    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
      
 
               
         
    	 
           
           
           
          