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Aluminium spool adapter, male ends, 3 by 4 inch coupling size

Dixon Valve & Coupling Co.

Dixon Valve & Coupling Co. 3040-AA-AL Spool Adapter 3x4 in 100 psi Male Adapter

SKU CH-42H0-HYAWX

Aluminium cam-and-groove spool adapter joining 3 in and 4 in male ends, rated to 100 psi at 70 °F

  • Aluminium body resists corrosion during fluid transfer
  • 100 psi rating handles demanding pressure applications
  • 3 in by 4 in coupling connects different hose sizes
  • Male-to-male design simplifies direct adapter installation
  • Locking arm included secures connection against vibration

Spool Adapter 3x4 Inch Aluminium

The Dixon 3040-AA-AL is a cam-and-groove spool adapter constructed from aluminium. It connects a 3-inch male adapter to a 4-inch male adapter for fluid transfer applications. The fitting carries a maximum working pressure of 100 psi at 70 degrees Fahrenheit. A locking arm is included for secure engagement.

Verify Pressure And Chemical Compatibility

Confirm that your system operating pressure does not exceed 100 psi at the reference temperature. Check that aluminium body material is compatible with the fluids being conveyed. Ensure the existing couplings match the 3-inch and 4-inch male adapter ends. The product carries a California Proposition 65 warning for cancer and reproductive harm.

Aluminium Build With Locking Arm

The aluminium body offers corrosion resistance while keeping weight manageable for handling. Male-to-male adapter ends allow direct connection between two female couplers of different sizes. The integrated locking arm helps prevent accidental disconnection during operation. Overall length measures 4 61/64 inches with plug diameters of 3 19/32 and 4 23/32 inches.

Highlights

  • Aluminium body resists corrosion during fluid transfer
  • 100 psi rating handles demanding pressure applications
  • 3 in by 4 in coupling connects different hose sizes
  • Male-to-male design simplifies direct adapter installation
  • Locking arm included secures connection against vibration

Specifications

BrandDIXON VALVE & COUPLING

Questions about this item

What does the Dixon 3040-AA-AL spool adapter include and what extra items are needed for installation?

The adapter arrives as a single aluminium Cam and Groove spool with built-in locking arms. You must supply the matching 3-inch and 4-inch cam-lock couplings, gaskets and any pipe or hose segments required for your plumbing layout.

When should I choose the 3-inch by 4-inch aluminium version rated at 100 psi instead of another size or material?

Select this model when you need to connect a 3-inch male cam-lock line to a 4-inch male cam-lock line at pressures up to 100 psi at 70 °F, and the aluminium construction suits the fluid and environment.

What does the 100 psi rating mean once the adapter is installed in a working system?

It indicates the maximum working pressure at 70 °F; the joint should not see sustained pressure above that value, and temperature increases will reduce the safe limit accordingly.

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