Longfor Enterprises Inc.DEVEX Foil Bags, Layered bags

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DEVEX Foil Bags 
DEVEX Foil Bags

Price: 6.00US$


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DEVEX gas sampling bags have excellent permeability and good stability for small molecular, non-corrosive compounds, such as methane, CO, CO2, and nitrogen, oxygen, etc.. Our DEVEX film is constructed with 4 layer films, PET(outer layer), polyamide, metalized aluminum foil, polyethylene, 0.0003″(inner layer).The film thickness is 130 um and is laminated with environmental friendly glue. Compared to regular multilayered bags, DEVEX bags are more flexible and strong. The bags are chemically inert and can be used for light sensitive compounds. They are not recommended for highly corrosive gases and low ppm VOCs due to background levels.

Our DEVEX sampling bags come with renovated, patented valves. Valve material is polycarbonate. Unlike other popular valves, our valve does not have O-ring inside to prevent leakage so contamination is minimized.

Price starts from as low as $6.00USD.

Depending on inlet orientation, there are two types of valves. One type is that the inlet is vertical to the film; other one is horizontal to the film. Both valves have the same functionalities: it's 2 in 1 combo valve that has on/off function and has a cap with PTFE septum in it for sampling purpose. Both valves are easy to use. One advantage of horizontal valve(side opening) is to use less storage space.

We also offer custom size gas sampling bags up to 2000 L, please contact us if you need.