Saint-Gobain Disc Filter Image
Disc Filter Inlet and Outlet Fittings
Written by
Jake Foster
Lisa Molinaro
Published on
22 May 2026
Reading time
5 minutes
Article contributed by
Jake foster
Jake Foster
Lisa Molinaro
Lisa Molinaro
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Disc Filter Inlet and Outlet Fitting Options for Medical Filtration Systems

When specifying a medical filtration solution, filtration media and pore size often receive the most attention. However, inlet and outlet fittings play an equally critical role in system performance, usability, and risk mitigation. Selecting the right connection can streamline installation, reduce the risk of user exposure, prevent incorrect installation of the filter, and help ensure seamless integration into your device.

At Saint-Gobain Medical, we offer a broad range of standard and customizable inlet/outlet fitting options across our filtration portfolio to support reliable, application-specific system design.

Why Inlet and Outlet Fittings Matter in Medical Filtration

In medical applications, fittings are not simply connectors; they are functional system components that can impact:

•    Installation accuracy and repeatability
•    Ease of filter change-outs
•    Risk of leaks or process interruptions
•    Protection against incorrect assembly
•    Compatibility with upstream and downstream tubing or hardware
•    Protection against unapproved aftermarket filters

Choosing the right inlet and outlet configuration can also help eliminate unnecessary adapters, simplifying designs and reducing potential failure points.

A Broad Portfolio of Inlet and Outlet Fitting Options

Saint-Gobain Medical offers a wide selection of inlet and outlet fittings for disc formats, giving engineers the flexibility to align filtration devices with specific system requirements. Available fitting options may vary by disc size, so it is recommended to consult with our team to confirm compatibility for a given configuration. In many cases, inlet and outlet fittings can be mixed and matched, allowing for light customization using standard components to meet unique system needs.

For applications that require venting, select disc filters, such as D65 and D90 formats, are available with integrated vent options to promote improved fluid flow and system performance.

Fitting TypeBest ForKey BenefitsTypical ApplicationsDesign Considerations
Hose BarbFlexible tubing systemsSecure tubing grip, simple installation, cost-effectiveGeneral fluid transfer, disposable systems, low-to-moderate pressure processesTubing ID must match barb size for optimal seal
Luer Lock / Luer SlipPrecision, low-volume flow pathsStandardized medical connection, easy connect/disconnect, compact designDiagnostics, lab filtration, point-of-care devicesBest suited for low-pressure applications
Threaded (MNPT / FNPT)Fixed or higher-pressure connectionsRobust mechanical attachment, leak resistance, broad compatibilityProcess filtration, manifolds, rigid tubing systemsMay require seals or tape; orientation must be considered
Quick ConnectFrequent filter change-outsFast installation, improved ergonomics, reduced downtimeOEM systems, user-facing devicesAvailable in valved and non-valved options
Valved Quick ConnectMinimizing fluid lossPrevents spills during disconnection, protects valuable fluidsBiopharma, media filtration, critical fluid applicationsSlightly higher complexity than non-valved options
Push-to-ConnectSimplified assemblyTool-free installation, clean system layout, secure tubing retentionCompact systems, modular assembliesTubing material and OD tolerances are critical
CompressionSemi-permanent tubing connectionsStrong mechanical seal, vibration resistanceInstrumentation, controlled fluid pathsRequires precise tubing dimensions
Tri-ClampSanitary, high-flow applicationsEasy cleaning, repeatable assembly, hygienic designBioprocessing, pharmaceutical manufacturingRequires more space than compact fitting types
Custom FittingsUnique or proprietary systems    Eliminates adapters, enables poka-yoke designs, OEM differentiationProprietary medical devices, specialized systemsDesigned collaboratively to meet specific requirements
 

Custom Inlet and Outlet Fitting Solutions

When Standard Options Aren’t Enough

In addition to standard fittings that can be paired on the inlet and outlet to create unique fitting combinations, Saint-Gobain Medical supports fully customizable, customer-specific inlet and outlet designs for disc filters. Custom configurations can:

•    Create a poka-yoke design to prevent incorrect installation
•    Eliminate the need for costly adapters
•    Improve ease of use or serviceability
•    Provide differentiation that helps protect OEM designs

Our engineering teams collaborate closely with customers to identify the optimal fitting strategy based on application requirements, regulatory needs, and system constraints.

Selecting the Right Configuration

When evaluating inlet and outlet fittings, consider:

•    Tubing or system compatibility
•    Flow rate and pressure requirements
•    Ease of installation and maintenance
•    Risk of fluid loss during change-outs

In medical filtration, connection selection plays a critical role in overall system performance, which is why early collaboration in the design process is so important. Engaging material and application expertise during initial planning and prototyping can help teams avoid late-stage redesigns, reduce development risk, and accelerate time to market. 
 

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