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Aluminium cam-and-groove reducing coupler adapter, 4-inch socket to 3-inch plug, nitrile gasket, locking arms

Dixon Valve & Coupling Co.

Dixon Valve & Coupling Co. 4030-DA-AL Reducing Coupler/Adapter 4 x 3 in 100 psi

SKU CH-1T5R-Y5N2G

Aluminium cam-and-groove reducer joins 4-inch socket to 3-inch plug at 100 psi

  • Reduces 4 in socket to 3 in plug for flexible piping connections
  • Aluminium body resists corrosion in demanding fluid-handling applications
  • 100 psi rating at 70 °F supports high-pressure service requirements
  • Nitrile gasket provides reliable sealing across a wide temperature range
  • Locking arm included for secure, leak-free coupling engagement

4 in Socket to 3 in Plug Reducing Coupler

This aluminium Cam and Groove adapter connects a 4 in female coupler to a 3 in male plug for fluid transfer lines. The Type DA body uses a nitrile gasket and includes a locking arm to secure the connection. Rated for 100 psi maximum working pressure at 70 F, it suits industrial hose assemblies requiring a size reduction.

Verify Hose and Clamp Compatibility Before Ordering

Confirm that your existing hose or pipe ends match the 4 in socket inside diameter and 3 in plug outside diameter. Ensure the system operating pressure does not exceed the 100 psi rating at 70 F. Check that nitrile gasket material is compatible with the conveyed fluid and temperature range.

Aluminium Body with Locking Arm for Secure Coupling

The aluminium construction provides corrosion resistance while the integrated locking arm prevents accidental disconnection during vibration or pressure spikes. Overall length of 6 5/16 in and 2 in plug length determine the installed reach in tight pipe runs. California Proposition 65 warnings apply for cancer and reproductive harm.

Highlights

  • Reduces 4 in socket to 3 in plug for flexible piping connections
  • Aluminium body resists corrosion in demanding fluid-handling applications
  • 100 psi rating at 70 °F supports high-pressure service requirements
  • Nitrile gasket provides reliable sealing across a wide temperature range
  • Locking arm included for secure, leak-free coupling engagement

Specifications

BrandDIXON VALVE & COUPLING

Questions about this item

Does the 4030-DA-AL come with a gasket or do I need to buy one?

The coupler includes a nitrile gasket and a locking arm so no separate seal is required.

When should I choose the 4 in socket by 3 in plug version versus another size?

Select this DA reducer when you need to connect a 4 inch female cam groove to a 3 inch male cam groove in the same line.

What does the 100 psi rating at 70 F mean once the fitting is installed?

It is the maximum working pressure the aluminum body and nitrile gasket can sustain at 70 °F in service.

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