DIN 2353 Adaptors and port fittings

Choose a configuration

Male-to-female adaptors

Transition between specified male and female connection sizes.

Configuration illustration; supplied variant may differ.

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BSPP adaptors

Connect a BSPP port to the required tube or threaded interface.

Configuration illustration; supplied variant may differ.

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Metric adaptors

Connect a metric port with the specified pitch and sealing form.

Configuration illustration; supplied variant may differ.

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ED-ring adaptors

Select an adaptor with the required ED seal and mating face.

Configuration illustration; supplied variant may differ.

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Blanking plugs

Close a compatible tube fitting connection.

Configuration illustration; supplied variant may differ.

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Port plugs

Close a specified equipment port with its matched seal.

Configuration illustration; supplied variant may differ.

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Tube caps

Terminate a tube end using the correct cap assembly.

Configuration illustration; supplied variant may differ.

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Where this configuration fits

Use adaptors to make a defined transition between connection forms. Use plugs and caps at their intended closure location, with the correct seal and thread engagement.

Details to include in your enquiry

Describe both ends of an adaptor rather than ordering from one thread size.
Distinguish a tube-end blanking plug, an equipment port plug and a cap for tube.
State the port seal and material for any closure component.
Confirm whether an adaptor requires nuts and cutting rings or is supplied body only.

Sizes, materials and supplied condition

Specify the tube outside diameter, LL/L/S series, material and every connection. The overall catalogue covers 4–42 mm tube, but an individual configuration may have a narrower range. Carbon steel, 316L and 316Ti can be included in an enquiry, subject to confirmation of the supplied item.

State whether you require complete fittings or bodies only. Include working pressure, peak pressure, temperature, medium and any certificate requirements so the complete assembly can be checked.

Select materials, seals and pressure capability →

JIC and O-ring boss transitions

Additional transition options can be requested where the circuit uses JIC 37° or UNF/UN O-ring boss connections. JIC seals on a flare seat; an O-ring boss connection seals at its specified port. Similar threads do not make the sealing arrangements interchangeable.

Technical selection guides

SELECTION GUIDE

DIN 2353 fitting sizes, series and thread identification

Identify a DIN 2353 connection by tube outside diameter, fitting series, thread and sealing form. A matching thread alone does not establish a correct connection.

SELECTION GUIDE

Selecting materials, seals and pressure capability for DIN 2353 fittings

Select the fitting, tube and seals as one assembly. Pressure capability depends on the exact configuration, material, tube dimensions, temperature and installation method.

SELECTION GUIDE

DIN 2353 fitting installation and inspection overview

Successful cutting-ring connections depend on suitable tubing, matched components, careful preparation and the correct assembly procedure for the supplied fitting system.

Questions answered

How do I specify adaptors and port fittings?

Identify the configuration, tube diameter and series, all connection threads and seals, material, quantity and operating conditions. Send a marked sketch when port positions or different end sizes matter.

Are the catalogue dimensions suitable for final fabrication?

Use them to identify and enquire about the configuration. Obtain the order-specific drawing and confirmed pressure rating before fabrication or installation.

SPECIFY YOUR CONNECTION

Request the right fitting

Send the connection details and operating conditions. Fluidline can confirm the supplied configuration, availability and supporting documentation with your quotation.

+27 11 312 9339
ram@fluidline.co.za