Charman Inc.

Ductile Iron Threaded Union

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*Images are for visual reference only.
  • Ductile iron threaded union with brass seat and female NPT connections on a white background.
  • Ductile iron threaded union with brass seat showing technical specifications, dimensions, features, and available sizes.
$8.95 - $18.95

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Description

Ductile Iron Threaded Union

Charman ductile iron threaded unions provide a serviceable connection between compatible male-threaded piping components while allowing the piping connection to be separated without rotating the adjoining pipe.

Select the required nominal pipe size from the product options above. The selected variation determines the Charman part number, online selling price, net cost, estimated shipping weight, and size-specific product information.

Product Highlights

  • Ductile iron construction
  • Threaded union configuration
  • Female threaded connections
  • Serviceable union-style piping connection
  • Allows piping sections to be disconnected without rotating adjoining pipe
  • Available in nominal sizes from 1" through 2"
  • Charman Manufacturing product family

Available Sizes

Charman Part # Nominal Size
620515 1"
620516 1-1/4"
620517 1-1/2"
620518 2"

Technical Specifications

Material Ductile Iron
Product Type Threaded Pipe Fitting
Configuration Union
Connection Style Female x Female Threaded
Function Serviceable Straight Piping Connection
Available Sizes 1" through 2"
Manufacturer Charman Inc.

Serviceable Threaded Connection

A threaded union connects two compatible male-threaded piping components while providing a convenient point for future disassembly. The union can be separated at its center connection without requiring the adjoining piping to be rotated.

Union vs. Coupling

Both unions and couplings create straight threaded piping connections. A union provides a separable center connection, making it useful where equipment, valves, or sections of piping may require future removal or maintenance.

Common Applications

Industrial & Mechanical

  • Threaded piping systems
  • Equipment connections
  • Valve installations
  • Maintenance and repair work

Serviceable Connections

  • Mechanical-room piping
  • Utility piping
  • Removable piping sections
  • General threaded piping assemblies

Manufacturer Resources

Review the Charman Ductile Iron Threaded Fittings catalog for manufacturer product-family information and related ductile iron threaded fitting configurations.

View Charman Ductile Iron Fittings Catalog

Need Help Selecting a Ductile Iron Union?

Our industrial PVF specialists can help confirm nominal pipe size, threaded connection requirements, service conditions, and product availability.

Frequently Asked Questions

What is a ductile iron union used for?

A threaded union joins two compatible male-threaded piping components while providing a convenient point where the piping system can later be disconnected.

How is a union different from a coupling?

A coupling creates a straight threaded connection. A union also creates a straight connection but provides a separable center connection for easier disassembly.

What type of connections does this union have?

This union has female threaded connections on both ends for connection to compatible male-threaded piping components.

What sizes are available?

This Charman ductile iron union family includes 1", 1-1/4", 1-1/2", and 2" nominal sizes.

How do I choose the correct variation?

Select the nominal pipe size that matches the compatible threaded components being joined.

Important Ordering Notes

  • Select the required nominal pipe size before adding the product to your cart.
  • The selected variation determines the Charman part number, selling price, estimated weight, and net cost.
  • Verify fitting size and union configuration before ordering.
  • Confirm pressure, temperature, media compatibility, and applicable installation requirements before use.
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