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Valve is inert, industry standard polypropylene.
Locking Combo® is a registered trademark of Jensen Inert Products, Inc.
Swagelok® is a register trademark of Swagelok, Inc.
Jaco® is a registered trademark of Jaco Manufacturing, Inc.
HR® is a registered trademark of Halkey Roberts, Inc.
Tedlar® is a registered trademark of E.I. Dupont
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Catalog Number: SEP5007NSCV7010, Fluoropolymer Faced 0.070" Thick Septa, For Screw Cap Valve/10
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- On/off valve function with replaceable septum in a single unit.
- Lightweight.
- Made of Inert polypropylene.
- Quick turning screw cap to open and close valve. Cap stop limits amount cap can be opened.
- Visual confirmation that valve is open or closed.
- Replaceable fluoropolymer faced, low bleed septum.
- Designed and manufactured by Jensen Inert Products.
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- ALTEF is a proprietary fluoropolymer film developed specially for the air sampling market.
- ALTEF meets or exceeds many of the desired characteristics of Tedlar®.
- Unlike Tedlar®, ALTEF does not exhibit background levels of DMAC and phenol.
- ALTEFexhibits similar stability properties as Tedlar® for a wide variety of compounds, including most VOCs.
- Low VOC and sulfur background levels.
- Contains no additives, fillers or pigments.
- Minimal adsorption.
- Superior storage for organics.
- Abrasion Resistant.
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- Before use, thoroughly flush bags with ultra-pure nitrogen or zero air
- During sampling, Fluoropolymer tubing and Fluoropolymer faced septums must be used in order to prevent sample loss.
- Bags should not be filled to more than 80% of their maximum volume.
- Charcoal (Black) Tedlar® bags should be used when sampling light sensitive compounds
- Do not store compounds in bags long term due to the possibility that chemicals may adsorb onto the bag surface.
- Bags should not be used to collect reactive or unstable compounds.
- When shipping bags, do not air-ship unless the bags are stored in a pressurized area.
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- Developed specifically for gas sampling applications
- Chemically inert to most acids, aliphatic and aromatic organic compounds, chlorinated solvents, and alcohols
- Maximum operating temp: 260 ºF
- ALTEF bags are made of 0.003" thick film.
- Tensile Strength 6100 psi
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- Suitable for sampling most VOCs and many sulfur compounds
- Low VOC background
- Longer sample storage times than most other bag materials
- Does not exhibit background levels of DMAC or phenol, as Tedlar® does
- Lower permeability than Tedlar® to CO2, N2, CH4
- Superior resistance to solvents
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- More permeable to most compounds than Tedlar® (0.003" thick versus 0.002" for Tedlar® Bags)
- Not suitable for sampling ketones and esters in high concentrations (>30 %)
- Less resistance to UV light than Tedlar®
- Many sulfur compounds should be analyzed within 24 hours.
- More expensive than Tedlar®
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- Economical: Cost savings in manufacturing is passed on to customers. Septum can be changed.
- Reduces shipping costs. Easier to carry in the field.
- Ensures purity of sample and non-contamination.
- Quick, easy opening and closing of valve: saves time. Cap stop leaks from opening cap too far.
- Prevents accidental sample loss. No guessing whether valve is open or closed.
- Allows reuse of valve by replacing inexpensive septum.
- Designed specifically for gas sampling applications.
- Economical: Cost savings in manufacturing is passed on to customers.
- Reduces shipping costs. Easier to carry multiple bags into the field.
- Ensures purity of sample and non contamination.
- Quick, easy opening and closing of valve (< 1 second).
- Faster than "twist action" valves.
- Locked position is easy to verify visually, and prevents accidental sample loss during shipment. Virtually impossible to open or close valve to far.
- Septum does not come into contact with sample inside bag. Septum allows repeated punctures with syringes without leakage. Ultra low bleed silicone prevents contamination.
- Designed specifically for gas sampling applications.
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