CPC
Standard couplings
- Selection criteria
- Frequently asked questions
- Non-spill couplings
- Food and beverage couplings (NSF)
- Chemically resistant couplings
CPC standard couplings are quick disconnects for tubing and hoses carrying liquids, several of them also rated for vacuum, with a thumb latch for one-handed connection. Bodies are made of acetal (POM), polypropylene, polysulfone or chrome-plated brass, mostly sealed with NBR or EPDM. Depending on the series, operating pressure ranges from 1.4 to 17.3 bar and temperature from -40 to 138 °C. Each series offers bodies and inserts with thread, hose barb or compression fitting, in in-line or panel mount design.
- 675 items
- 12 subcategories
- 1 manufacturer
- Net prices plus VAT
Standard couplings by material
Body and seal material as a ready-made filter in this category.
POM (acetal)Light and resistant to most mild chemical solutions.APC, PLC, PMC
PolypropyleneChemically resistant for harsh environments.EFC12, HFC12, PLC12
PolysulfoneStrong, chemically resistant and autoclavable.up to 138 °C
UV-resistant polysulfoneFor lines used outdoors.HFC57
Chrome-plated brassFor higher pressures and temperatures.up to 17.3 bar
NBR sealUsed on APC, FFC35 and LC, among others.
EPDM sealUsed on EFC12, HFC12, HFC35 and HFC57, among others.
Buying guide
How to choose Standard couplings
What matters when choosing: properties, comparison and typical applications.
Selection criteria
| Criterion | Available | Note |
|---|---|---|
| Body material | POM (acetal), polypropylene, polysulfone, UV-resistant polysulfone, chrome-plated brass | Brass for pressure and temperature, polypropylene for chemicals, polysulfone for autoclaving. |
| Seal | NBR, EPDM, FKM | Choose by medium and temperature. |
| Temperature | -40 to 82 °C, 0 to 71 °C, 0 to 82 °C, -40 to 138 °C | Only the polysulfone series reach 138 °C. |
| Operating pressure | 1.4 to 17.3 bar | The LC brass series reaches the highest values. |
| Flow | 1/4" (APC, PLC), 9/32" (EFC12), 3/8" body (HFC12), 1/2" (FFC35) | Non-valved FFC35 for the highest flow. |
| Shut-off | valved or non-valved | Valved versions release very little fluid on disconnection. |
| Mounting | in-line, panel mount, thread | Panel mount versions for walls, housings and tanks. |
Frequently asked questions
- Which series can be coupled with each other?
- The LC brass series mates with PLC in acetal and PLC12 in polypropylene, while the MC brass series mates with PMC and PMC12. This lets you mix metal and plastic within one family. For the other series, choose body and insert from the same series.
- When is brass a better choice than plastic?
- For higher pressures and temperatures. The chrome-plated brass LC series is rated up to 17.3 bar, while the plastic series range from 1.4 to 8.6 bar depending on the series.
- Which couplings handle high temperatures?
- HFC35, HFC57 and FFC35 in polysulfone operate from -40 to 138 °C. According to the manufacturer, HFC35 and FFC35 can also be autoclaved.
- What is the difference between valved and non-valved versions?
- Non-valved versions keep the bore open for maximum flow, but both line ends are open once disconnected. Valved versions close on disconnection, so only a small amount of fluid escapes.
- Which series is suited to outdoor use?
- HFC57 is made of UV-resistant polysulfone and withstands continued sun exposure without loss of performance.