Air-tight tube metal cap

  • Best Seller

P-CAP series

A complete set of reservoirs easy-to-use and refillable for long term experiments. Compatible with multiple pressure-based experiments in parallel. It allows pressurization of standard lab vials (1.5 mL and 2 mL Eppendorf, 15 mL and 50 mL Falcon) for microfluidic applications.

Main benefits
  • Autoclavable

    Can be sterillized

  • Biocompatible

    No contact with the sample

  • Long use

    Suits long term experiment

  • Incubator

    Reservoirs can be incubated


Pressurize standard lab vials

The P-CAPs fit with standard lab vials of 1.5 mL, 2 mL, 15 mL and 50 mL.

No wetted material

There is no contact between the cap and the sample. Only disposable materials are wetted.

Reservoir accessibility

The vials can be heated or agitated while delivering fluids.

Free sample access

Easy refill using a syringe or a pump, even during the experiment with the multiple port version (50mL only)



Working pressureUp to 7 bar (up to 4 bar for 50 mL versions)


Tubing compatibility1/16” and 1/32” OD capillaries
Pressure inlet connector4mm OD
Reservoir size compatibility1.5 mL, 2 mL, 15 mL, 50 mL


Gas compatibilityDry, oil-free gas, air, any non corrosive or non explosive gas
Liquid compatibilityAqueous solvent, oil, organic solent, biological sample

Pressure controllers such as MFCS™ series or LineUp™ series instruments allow for pressurization of vials to handle fluids.

animated fluid actuation with flow ez p-cap and flow unit