Food and beverage couplings (NSF)
Puncture Seal
Puncture Seal is a dispensing system for bag-in-box containers and other flexible packaging, made up of a closure cap and a matching coupling body. The cap seals onto a 38 mm fitment neck by thread or snap-in, and the coupling body breaks the membrane in the cap automatically as it connects. Bodies are polypropylene or polyethylene with EPDM seals, rated from vacuum to 8.3 bar and 0 to 71 °C.
Puncture Seal by material
Filter caps and couplings by body or seal material.
- 5 items
- 1 manufacturer
- Net prices plus VAT
Buying guide
How to choose Puncture Seal
What matters when choosing: properties, comparison and typical applications.
Selection criteria
| Criterion | Detail |
|---|---|
| Components | closure cap (screw-on or snap-in) and coupling body |
| Fitment neck | 38 mm |
| Pressure | vacuum to 8.3 bar |
| Temperature | 0 to 71 °C |
| Materials | polypropylene coupling, polyethylene cap, EPDM seal |
| Termination | hose barb 6.4 mm (1/4") or 9.5 mm (3/8"), valved or non-valved |
Frequently asked questions
- How does the Puncture Seal system work?
- The closure cap seals on the 38 mm neck of the container. When the coupling body is pushed on, it pierces the membrane in the cap and the liquid can flow.
- How do I change to a new container?
- Press the thumb latch, pull the coupling off and connect it to the cap of the full container. No tools are needed.
- Which caps are available?
- A screw-on cap and a snap-in closure, both in polyethylene for 38 mm necks.
- What pressure are the couplings rated for?
- From vacuum to 8.3 bar, at temperatures from 0 to 71 °C.