FEP GAS SAMPLING BAG
FEP(Fluorinated ethylene propylene) film is the most chemically
resistant film in the fluoropolymer family.
*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
Standard FEP Gas Sampling Bag Sizes:0.5L,1L,2L,3L,4L,5L,8L,10L,15L,20L,30L,and 40L or customized size.
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PTFE straight valve Side-opening PTFE valve Stopcock straight valve
Side-opening stopcock valve
Operating instructions for FEP bag
1.Avoid filling pressure higher than 1000Pa. Fill gas until the bag
is fully expanded, however, it is not so tense when you press it
using your finger.
2. A latex or silicon rubber hose should be used to connect to the
analytical instrument from the gas sample bag; meanwhile a clamp
can be used to control the flow.
3. A needle can be used to draw gas sample or draw vacuum through
the cap that is located on the top of valve.
4. PTFE valve has on/off function. It controls the flow. Turn the
handle up along the axis to open the valve, turn 90 degree to shut
off the valve.
5. The valve is made of PTFE. It can handle corrosive inorganic or
6. The shaft can be connected to vacuum pump through a hose.
7. Before use, flush sampling bags three times with the gas you
want to fill.
8. Working temperatures should be -20 °C to 60 °C.
9. Keep away from flame and high temperature when filling and
storage. Avoid contacting sharp stuff.
patented product, fast on/off, superb sealing and suitable for
ultra low sampling and analysis.
Tips for ordering:
1.Understand the nature of the gas you are going to fill, the
select a suitable bag.
2.Please read instructions carefully to ensure operation correctly.
3.Clamps and hoses are optional. Order them according to your need.
4.Catalogue number is unique in our database. The suffix –x stands
for the volume of a bag, e.g.,
FFV—0.5 is 0.5L FEP bag with one PTFE valve;
5. We will replace the defect products. Please check the products