We provide Teflon gas sampling bags of capacity 5ML,10ml,20ml,50ml,100ml,200ml,300ml,500 ml, 1 liter, 2 liters, 3 liters,4 liters, 5 liters,10 liters,20 liters,30 liters,50 liters,100 liters,200 liters ,500 liters,1000 liters and 2000 liters,. The bags customized in all the sizes as per required volume and applications. The sampling valve type is same for all sizes and capacity of air sampling bags.
Teflon bag is used to collect gas or air samples to analyzed mainly Volatile organic compounds (VOC’s), hydrogen sulfide (H2S), carbon monoxide (CO), methane, sulfur hexafluoride, radon, mercaptans, and other gasses. It is also known as a gas sampling bag. It is made up of two components one is polyvinyl fluoride (FEP) film, and another is polypropylene (PP) valve fitting.
We also supply PTFE and PVDF valve fitting. The thickness of PVF film is 2 mil, i.e. 50.8 microns. The commercial name of FEP film is Teflon; hence the gas sampling bag is called as Teflon bag.
The PTFE or Teflon film is high-temperature resistant polymer invented in 1960 by DuPont. This polymer film is used to make a bags from last four decades due to its suitable properties like chemically inertness, abrasion and corrosion resistant, high tensile strength, and low absorptive. The sample bag is also having an excellent resistance to permeability of gasses in both the direction means from inside and outside of the bag, which helps to maintain a purity of the sample. The maximum operating temperature of the gas sampling bag is 150 oC to 170 oC, which makes it accessible for hot gas or air sampling particularly in the stack and industrial chimney. The continuous operating temperature range is up to 110 oC and batch maximum operating temperature range up to 170 oC.
The bag holding time depends on the type of gas as well as the storage location (cold or hot location). Gas sampling bags are re-usable, it is necessary to flush with the inert gasses, nitrogen or clean air before reuse to avoid contamination. It is advised to fill sample only up to 90% capacity of the bag to prevent leakages and excessive pressure on the film.
The Teflon gas sampling bag is used to collect sulfur compounds in non-metallic fittings only, which do not store in the SS valve. It recommended in many USA EPA, NIOSH, and OSHA testing methods.
Material of Film: – FEP
Material of valve – Polypropylene
Film Thickness – 2 mil
Operating Temperature – 477 Degree Kelvin
Tensile Strength – 7,980 psi
Material Specific Gravity – 1.69 g/ml
Minimum sample loss in storage
Lightweight and moisture proof
Chemically and physically inert
Portable and handy
Best alternative for expensive sampling devices like Summa Canisters