FEP Gas Sampling Bag, 9" x 9" 2L, CHROMSPEC, with Roberts On/Off Valve with 1/4" Barbed Stem & Jaco PTFE-Faced Septum Fitting

FEP Gas Sampling Bags

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°F; allowing it to be used in most stack sampling conditions. Much more permeable than Multi-Layer or Tedlar®. Heavier gauge (0.005") film is resistant to most severe corrosives as well as tolerates applications involving rough handling or difficult service conditions. Virtually transparent.

Nickel Plated HR® ON/OFF Valve with 1/4" Diameter Barbed Stem & Separate Plastic 1/4" Jaco® Fitting with Fluoropolymer Faced Septum

You get the features of both the HR® Valve and the Jaco® Fitting on one bag

HR® Features:

• Nickel Plated to resist damage from most aggressive chemicals
• 1/4" Barbed Stem for attaching tubing, helps keep tubing in place
• Leak resistant seal in closed position, prevents sample loss. However, when stem is not closed, sample air passes into the ambient air outside valve

Jaco® Features:

• Polypropylene molded construction is inexpensive compared to metal fittings
• Replaceable fluoropolymer faced septum with large area, allows repeated punctures with common lab syringes.
• Allows reuse of valve by only replacing septum.
• Option of cap with septum or cap with tubing, allows syringe sample extraction or attachment of tubing by changing caps.
• Compression ferrule secures tubing onto fitting, which provides a superior grip compared to metal fittings.
• Standard Jaco can be used with 1/4" tubing. Jaco for 1/2" and 3/8" tubing also available.