Fluoroplastic manufacturers

FEP Gas Sample Bags

for gas, odour, and emission sampling.

FEP gives the ultimate in low contamination and easy cleaning. This range of FEP gas bags is normally specified for odour sampling and applications where a very low ppm are involved.

for gas, odour, and emission sampling. for gas, odour, and emission sampling.
  • No contamination of gas sample
  • Easily cleaned for re-use by gas flushing
  • Very low permeation of gases through the wall of the bags
  • Range of inert connectors for ease of use
  • Wide range of sizes
  • Special designs for unusual requirements
  • Large capacity gas bag chambers
  • Internal manifolds if required

The range of PTFE connectors offered suit most applications, however, we can also apply custom free issue connectors if required.

Multiple use FEP bags can have a Kapton reinforced weld to increase life, and larger multiple use bags are often specified with internal FEP scavenger pipes to ensure complete evacuation of gases before re-using the gas sample bag.

Case Study

We were approached by UMIST to create a cuboid gas sampling chamber 3 metres x 5 metres from FEP 50 micron film.

The main problem we had to overcome was how to create a 3 dimensional corner profile and ensure the integrity of the welded seam.

To achieve this, we chose to support the FEP sample bag structure by using an external frame, which relieved the stress on the welded area.

By making the FEP bag section in two halves,  UMIST are able to easily adjust the capacity of the chamber, by raising and lowering the height of the top section.  Whereby giving them greater flexibility with only one chamber.

Adtech's chambers are bespoke to each customer, as the demands of room size, chamber capacity needed and external fittings vary for each application.  Please contact our technical sales team to discuss your particular requirement.

Still not sure if these are the right bags for your application?  Then contact our customer service team on +44 (0) 1285 762000 or sales@adtech.co.uk.

Standard FEP Gas Sample Bag Sizes

Manufactured from 50 micron film.

Capacity Size Capacity Size
3 litre 250 x 250 mm 75 litre 600 x 1000 mm
5 litre 300 x 300 mm 100 litre 600 x 1200 mm
10 litre 300 x 500 mm 175 litre 750 x 1500 mm
20 litre 450 x 450 mm 200 litre 1000 x 1000 mm
50 litre 600 x 600 mm 300 litre 1000 x 1500 mm
60 litre 600 x 900 mm    

Product brochures

The standard thickness of film offered from stock is 50 micron, however, we can offer a different thickness to suit our customers' individual applications upon request. FEP gas sample bags are normally specified for odour sampling and applications where a very low ppm are involved.

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