PFA Retaining-Ring Tubing Assembly
FOREACH PFA retaining-ring tubing assemblies combine PFA tubing, matching threaded fittings, retaining sleeves and sealing washers for reagent, cleaning-fluid and internal connections in in-vitro diagnostic (IVD) and automated analytical instruments. Reference tubing OD is 1.6 mm, with IDs of 0.5, 0.8 or 1.0 mm. Specify finished length and A/B end connections in the assembly drawing.
Select a PEEK 6-40 UNF miniature fitting or HSF6 configuration with M6×1 or 1/4-28 UNF threads to suit the port. Match the sleeve and sealing washer to the selected tube size, material and fitting model. Show positions and dimensions for protective sleeves, stop tubes, heat-shrink labels or coils in the drawing. Samples, equipment development and batch assembly are supported. Confirm working pressure and temperature for the specific dimensions, ports and complete assembly.
FOREACH holds ISO 9001 and ISO 13485 quality management system certifications.
Typical Applications:
PFA reagent line connections, End connections for 1.6 mm OD tubing, Custom retaining-ring tubing, Internal instrument fluid connections
Assembly Parameters
| Tubing material and appearance | PFA |
|---|---|
| Connection structure | Retaining sleeve and sealing washer |
| Matching fittings | HSF6 fittings, 6-40 UNF miniature fittings |
| Fitting material | PPS, PEEK; selected by series |
| Standard threads | M6×1, 1/4-28 UNF (HSF6 configuration) |
| Retaining-ring kit | SUS and PEEK components matched to the kit model |
| Finished length | Custom to drawing, with specified length and tolerance |
| A/B ends | Fitting material, thread and connection type can be specified separately |
| Optional configurations | Coils, abrasion protection sleeves, stop tubes, heat-shrink labels |
Tube Size Combinations
| Tube OD (mm) | Matching Tube ID (mm) |
|---|---|
| 1.6 | 0.5 / 0.8 / 1.0 |
These are available tubing sizes. Confirm end dimensions and mating ports against the assembly drawing.
Match fitting material, structure and thread to the corresponding model.
Miniature option: 6-40 UNF, PEEK fitting, 1.6 mm tube OD. Confirm the complete end configuration against the selected model.
Working pressure and temperature must be confirmed for the specific assembly configuration.
PFA Retaining-Ring Tubing Applications & Customization
Equipment development, assembly to drawing, sample development and batch production are supported.
Instrument fluid-path integration
Assemblies for in-vitro diagnostic and automated analytical instruments are selected against the actual reagent, cleaning fluid and connection requirements.
PFA tubing and custom ends
PFA tubing can be configured for the required length and end connections. Confirm tube-end forming and sealing components against the selected size and mating port.
Assembly drawings and dimensions
Provide tube ID/OD, finished length and tolerance, length measurement datum, A/B port drawings, fitting materials, threads and installation space. Show coil, sleeve, stop and label positions and dimensions on the assembly drawing.
Fluids, pressure and temperature
Specify the working fluid, concentration, cleaning fluid, contact time, pressure, temperature and inspection requirements to confirm wetted materials and the complete assembly.
Installation and mating ports
Install the sleeve and sealing washer in the specified sequence and orientation using the designated tools. Confirm tube OD, retaining-ring kit and port as a matched connection.
Quality documents and delivery
FOREACH holds ISO 9001 and ISO 13485 quality management system certifications. Applicable REACH and RoHS reports and material safety data sheets (MSDS) can be supplied for relevant connection components according to material and model. Dimensional inspection, seal testing, identification and packaging requirements for samples and batches are agreed for each project.
Submit your requirements
Prepare an assembly drawing, port drawing or BOM, together with sample quantity, batch requirements and acceptance criteria.
Use the fluid resistance calculator for preliminary estimates when comparing how tube diameter or length affects pressure drop.
Estimate fluid resistance2D Drawing Not Available Yet
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Frequently Asked Questions
The currently listed reference OD is 1.6 mm, with 0.5, 0.8 or 1.0 mm ID. For other sizes, provide a drawing so an engineer can review tubing availability and end connections.
Submit your requirements
Prepare an assembly drawing, port drawing or BOM, together with sample quantity, batch requirements and acceptance criteria.