Standard couplings
SMC
CPC SMC couplings connect with a twist and offer a more secure alternative to luer-type connections. Once connected the tubing rotates freely, so it neither kinks nor pulls apart by accident. The series comes in acetal, polypropylene, ABS and chrome-plated brass, valved and non-valved, rated from vacuum to 6.9 or 8.3 bar at -40 to 82 °C. For line identification, SMC is also available with IdentiQuik RFID technology.
SMC by material and seal
The main materials as a ready-made filter in this category.
POM (acetal)Acetal, the standard material of the series.-40 to 82 °C
PolypropyleneMore chemically resistant than acetal.0 to 82 °C
ABSPlastic body for simple applications.
Chrome-plated brassMetal version for rugged installations.
NBRFor water, air and oils.
EPDMFor aqueous media, acids and alkalis.
FKMFor aggressive chemicals and higher temperatures.
- 58 items
- 1 manufacturer
- Net prices plus VAT
Buying guide
How to choose SMC
What matters when choosing: properties, comparison and typical applications.
Selection criteria
| Criterion | Available | Note |
|---|---|---|
| Connection | Twist to connect | Tubing rotates freely, no kinking, no accidental release. |
| Body material | POM (acetal), polypropylene, ABS, chrome-plated brass | Polypropylene for chemicals, brass where the coupling takes mechanical load. |
| Seal | NBR, EPDM, FKM | Select by medium, FKM for aggressive fluids. |
| Shut-off | valved and non-valved | Valved versions keep the line closed when disconnected. |
| Pressure | Vacuum to 6.9 bar or 8.3 bar | Depends on material and version. |
| Temperature | -40 to 82 °C, 0 to 82 °C | Polypropylene parts start at 0 °C. |
| Termination and mounting | Hose barb 1/16" and 1/8", locking hose barb, NPT thread, free floating, in-line, panel mount | Complete sets contain body and insert. |
Frequently asked questions
- Why SMC instead of luer?
- The twist connection holds more securely than a luer fitting, and the tubing can rotate while connected. It does not twist up or kink, and the joint does not come apart by accident.
- Is SMC available with shut-off?
- Yes. Besides non-valved versions there are valved SMC couplings with a 316 stainless steel spring that close the line on disconnection.
- Which materials can I choose?
- Acetal, polypropylene, ABS and chrome-plated brass for the body, NBR, EPDM and FKM for the seal.
- What does the IdentiQuik option do?
- An RFID chip in the coupling transfers data together with the fluid. It identifies device type and medium and helps prevent misconnected lines.