CPC
Non-spill couplings
- Selection criteria
- Frequently asked questions
- Standard couplings
- Chemically resistant couplings
- Hybrid and RFID couplings
CPC non-spill couplings carry a shutoff valve in both the body and the insert, and both valves close before the halves separate. The fluid stays in the line, practically nothing escapes on disconnect and very little air enters the system. That matters wherever a few drops already raise safety, media cost or environmental concerns. The series cover 1/8" hose barbs up to 3/4" NPT threads and are rated from vacuum to 8.3 bar (NS212 up to 3.1 bar, NS1 up to 1 bar), with polypropylene or ABS bodies and EPDM, FKM, FFKM or silicone seals.
- 128 items
- 6 subcategories
- 1 manufacturer
- Net prices plus VAT
Non-spill couplings by material
Body and seal materials as ready-made filters for this category.
Buying guide
How to choose Non-spill couplings
What matters when choosing: properties, comparison and typical applications.
Selection criteria
| Series | Connections | Pressure and temperature |
|---|---|---|
| DF2 | 1/8" hose barb | vacuum to 8.3 bar, -17 to 71 °C |
| NS1 | 1/8" hose barb, 1/4-28 thread, panel mount | up to 1 bar, 0 to 49 °C |
| NS212 | 1/8" and 1/4" hose barb, 1/8 NPT, 1/4" PTF | up to 3.1 bar, 0 to 49 °C |
| NS4 | 1/8" to 3/8" connections, 1/4" NPT and BSPT, PTF | vacuum to 8.3 bar, 0 to 71 °C |
| NS6 | 3/8" and 1/2" hose barb, 1/2" NPT and BSPT, compression | vacuum to 8.3 bar, 0 to 71 °C |
| NSH | 3/8" to 3/4" hose barb, NPT, compression | vacuum to 8.3 bar, 0 to 49 °C |
Frequently asked questions
- What does non-spill mean for these couplings?
- Both the body and the insert contain a shutoff valve that closes before the halves separate. The fluid stays in both line sections, practically nothing escapes and the line does not need to be purged of air afterwards.
- Which series fits my tubing?
- For small tubing up to 1/8", choose NS1, DF2 or NS212. NS4 covers 1/8" to 3/8", NS6 the 3/8" and 1/2" sizes, and NSH goes up to 3/4" for high flow rates.
- Which seal material should I choose?
- EPDM is the standard seal for water and aqueous media, FKM suits oils and many solvents, and FFKM is meant for aggressive chemicals. Always check compatibility against your specific fluid.
- Can I disconnect under pressure?
- NS4 and NSH are designed to disconnect under pressure without spilling. For the other series it is advisable to depressurise the line first.
- Which mounting options are available?
- The series come as free-floating in-line parts and as panel mount versions for a wall or front plate, most of them also with threaded terminations.