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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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FEP is one of the most chemically inert materials for making gas sampling bags. It works well in extreme temperatures ranging from -400 to 400 ºF; allowing it to be used in most stack sampling conditions. 5 mil FEP film is completely resistant to the most severe corrosives. Much more permeable than Multi-Layer or Tedlar®. FEP bags can be specified for applications involving corrosive gases.

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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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• One of the most chemically inert materials available for making gas sampling bags
• Maximum operating temperature: 400 ºF
• Virtually transparent

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• Works well in extreme temperatures ranging from -400 to 400 ºF; allowing it to be used in all stack sampling conditions
• Heavier gauge (0.005) film is resistant to most severe corrosives as well as tolerates applications involving rough handling or difficult service conditions
• Less expensive than PFA

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• Poor long term storage stability for most VOC's and sulfur compounds
• Much more permeable than Tedlar^®, ALTEF, and Multi-Layer Foil bags
• More expensive than Tedlar^®, ALTEF, Multi-Layer Foil, and TFM bags
• Lower tensile strength 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.