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Aluminium flange coupler with locking arm, three inch size

Dixon Valve & Coupling Co.

Dixon Valve & Coupling Co. 300-DL-AL Flange Coupler 3 in 125 psi Aluminum

SKU CH-9TP8-C75QQ

Aluminium flange coupler with a 3-inch socket and 125 psi rating at 70 degrees Fahrenheit

  • Aluminium body resists corrosion for long service life
  • Flange connection fits 3-inch pipework without adapters
  • Rated 125 psi at 70 °F for reliable pressure handling
  • Nitrile gasket seals effectively across a wide temperature range
  • Locking arms included for quick, tool-free assembly

Flange Coupler for 3 in Systems

The Dixon 300-DL-AL flange coupler connects 3 in cam-and-groove hose assemblies to flanged piping. It is built for industrial fluid transfer where a quick-disconnect socket meets a fixed flange connection. The aluminum body keeps weight low while handling the rated pressure.

125 psi Working Pressure at 70 °F

This coupler is rated for a maximum working pressure of 125 psi at 70 °F. That single pressure figure determines whether the part suits your process line; verify your system pressure against it before ordering. The 3 in socket inside diameter matches standard 3 in cam-and-groove plugs.

Thermal and Pressure Limits in Normal Use

The pressure rating is specified at 70 °F, so expect reduced capacity at higher fluid temperatures. Aluminum construction conducts heat rapidly, which can affect gasket sealing if the media runs hot. The nitrile gasket and locking arm remain secure within the published pressure range.

How it compares

Measured against everything we stock in Hose Fittings, Adapters & Clamps, at today’s prices. Recalculated every night.

Price $131.99
Pricier than about 90% of the 2,955 comparable items (median $17.99).

Specifications

Product
Brand nameDIXON VALVE & COUPLING

Questions about this item

What does the 125 psi rating mean once the coupler is installed in a real system?

It is the maximum working pressure at 70 °F, so the joint must not see pressure above 125 psi during normal operation at that temperature.

What does the flange connection cap in practice?

The flange mates with a matching 3 in flange and a nitrile gasket, sealing to the same 125 psi limit at 70 °F.

What physical space and hardware are needed to fit this 3 in flange coupler?

It requires a 3 in flange face, a nitrile gasket, bolt clearance for the flange pattern, and 5 5/8 in of straight run for the overall length.

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