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Aluminium cam-and-groove coupling, type D, 3-inch socket with 2-inch NPT thread

Dixon Valve & Coupling Co.

Dixon Valve & Coupling Co. 3020-D-AL Cam and Groove Coupling

SKU CH-262E-D8K13

Aluminium cam-and-groove socket couples a 2 in hose to a 3 in NPT thread at 125 psi

  • Aluminium body resists corrosion for long service life
  • Type D cam-and-groove design enables quick, tool-free hose connections
  • Nitrile gasket seals reliably up to 125 psi working pressure at 70 °F
  • Locking arm included secures the coupling against accidental disconnection
  • Female NPT thread mates directly with 2 in -11-1/2 pipe threads

Dixon 3020-D-AL Cam and Groove Coupling

This aluminum cam and groove coupling provides a Type D socket connection for industrial fluid transfer applications. It features a 3 inch socket inside diameter paired with a 2 inch female NPT thread size for secure pipe attachment. The coupling includes a locking arm and nitrile gasket for a reliable seal.

Practical limits of the NPT threaded interface

The connection uses a 2 inch -11-1/2 NPT thread standard which requires matching male threads for proper engagement. Maximum working pressure is rated at 125 psi at 70 F, defining the upper limit for safe operation. Thread compatibility and pressure rating are the primary constraints for system integration.

Capacity and headroom for fluid handling

The 3 inch socket bore and 2 inch thread combination accommodates significant flow volume for suction or discharge lines. The aluminum body and nitrile gasket handle standard temperature and pressure ranges within the 125 psi rating. Systems exceeding this pressure or requiring different chemical compatibility will need alternative specifications.

Highlights

  • Aluminium body resists corrosion for long service life
  • Type D cam-and-groove design enables quick, tool-free hose connections
  • Nitrile gasket seals reliably up to 125 psi working pressure at 70 °F
  • Locking arm included secures the coupling against accidental disconnection
  • Female NPT thread mates directly with 2 in -11-1/2 pipe threads

Specifications

BrandDIXON

Questions about this item

Should I choose the 2 inch or 3 inch coupling for my hose?

This coupling has a 2 inch hose fitting and a 3 inch socket, so it connects a 2 inch hose to a 3 inch NPT thread.

What does the 125 psi rating mean when the coupling is installed?

At 70 F the coupling is rated for a maximum working pressure of 125 psi; pressure capacity drops as temperature rises above that point.

How does the NPT thread affect what I can connect?

The 2 inch NPT female thread mates with standard 2 inch NPT male fittings, limiting connections to that thread standard.

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