Non-spill couplings
NS4
NS4 is a compact non-spill coupling for lines where even a few drops affect safety, media cost or environmental compliance. It can be disconnected under pressure without spilling, and it is lightweight and chemically resistant. Glass-filled polypropylene or ABS bodies, EPDM, FKM or FFKM seals, rated from vacuum to 8.3 bar and 0 to 71 °C. The series is also available with IdentiQuik RFID technology.
NS4 by material
Body and seal materials as ready-made filters within the NS4 series.
- 44 items
- 1 manufacturer
- Net prices plus VAT
Buying guide
How to choose NS4
What matters when choosing: properties, comparison and typical applications.
Selection criteria
| Criterion | Available | Note |
|---|---|---|
| Connection | 1/4" NPT and BSPT, 1/8" hose barb, PTF 6.4 x 4.3 mm and 9.5 x 6.4 mm | BSPT is the tapered British pipe thread. |
| Mounting | in-line, panel mount, thread | |
| Body | polypropylene, ABS | Polypropylene is glass-filled. |
| Seal and spring | EPDM, FKM, FFKM; stainless steel or Hastelloy C spring | Hastelloy C for chemically demanding media. |
| Pressure and temperature | vacuum to 8.3 bar, 0 to 71 °C | Disconnect under pressure possible. |
Frequently asked questions
- Can NS4 be disconnected under pressure?
- Yes, the valves close on disconnect even under pressure, with no fluid escaping. That shortens downtime and protects operators.
- Which body material should I pick?
- Glass-filled polypropylene is durable and compatible with many chemicals. ABS is an alternative where your fluid allows it.
- What is IdentiQuik?
- An RFID-enabled NS4 version that transfers data along with the fluid. It identifies the connected device or medium and verifies that the correct line has been connected.
- How do I tell several media lines apart?
- Colour-coded couplings make it easy to distinguish lines at a glance.