SD1/4-N3 | 316 Stainless Steel Male Run Tee
The Pneuforce SD1/4-N3 is a 316 stainless steel male run tee for 1/4" tubing and a 3/8 NPT connection. Its push-to-connect interface and FKM (Viton®) seal support maintainable pneumatic and vacuum lines where corrosion resistance and equipment washdown are important.
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | SD1/4-N3 |
| Fitting Type | Male Run Tee |
| Tube Outside Diameter | 1/4" |
| Connection | Tube-to-thread connection |
| Thread Size & Form | 3/8 NPT |
| Body Material | 316 stainless steel |
| Seal Material | FKM (Viton®) |
| Primary Service | Compressed air, vacuum and non-potable water (subject to full system suitability) |
| Published S-Series Pressure | Up to 420 psi family rating; verify each assembly |
| Published Fitting Temperature | -4°F to 392°F (-20°C to 200°C); tubing and media can reduce allowable range |
How This Male Run Tee Works
This male run tee combines two push-to-connect tube sockets and a male threaded connection in the run-tee geometry. It provides three connection points for routing air or vacuum between tubing and a threaded machine port.
Check the port orientation against a branch tee before ordering. A run tee and branch tee may have the same tube and thread sizes but different installation geometry.
Typical Industrial Applications
- Threaded machine-port junctions serving two tubing directions
- Air distribution on hygienic processing machines
- Vacuum line connections near an equipment manifold
316 Stainless Steel and FKM Seals
The 316 stainless steel body, release components and gripping collet provide corrosion-resistant construction for washdown and demanding machinery. FKM (Viton®) seals support many air, vacuum and industrial-fluid applications, but compatibility must be assessed for the specific media and temperature.
Pneuforce publishes a family working-pressure figure of up to 420 psi for S-prefix stainless fittings and a fitting temperature range of -20 to 200°C (-4 to 392°F). Those are family specifications, not proof of suitability for every tube, fluid or assembly. Check the tubing, connection method, seal/chemical compatibility and exact product documentation before operation.
Frequently Asked Questions
Is this a branch tee or run tee?
The SD1/4-N3 is a male run tee with two push-in tube connections and a 3/8 NPT threaded connection. Choose the tee orientation based on the location of the threaded port in the machine layout.
Can one tee supply two pneumatic devices?
A three-way tee can route flow between connected lines, but supply pressure and flow at each branch depend on the source capacity, connected loads and tubing resistance.
Is this an NPT or BSPT thread?
This model is listed with a 3/8 NPT connection. NPT and BSPT are not interchangeable based on nominal size alone; verify the port thread before installation.
Is this fitting suitable for vacuum?
Pneuforce lists this stainless push-to-connect family for compressed air and vacuum. The completed connection must use compatible tubing with a clean, undamaged outside surface, and the system must be checked for leakage at its operating vacuum.
Can I use this fitting for drinking water?
Do not assume potable-water approval. Pneuforce lists these push-in fittings for compressed air, vacuum and non-potable water; drinking-water or food-contact approvals would require separate documented certification.
What does FKM (Viton®) contribute?
FKM is the fluoroelastomer sealing material used in this fitting family. It is chosen for resistance to many oils, chemicals and elevated temperatures, but exact media compatibility depends on the fluid concentration, temperature and seal formulation.
What should I check when installing push-in tubing?
Match the tube outside diameter and approved tubing material to the fitting. Cut squarely, remove burrs, insert fully and check retention and leaks before putting the system into service. Confirm the connection can be disconnected safely after depressurizing.
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