Breather Bag

• High Grade Polyester Needle Felt
• With or Without PTFE Membrane
• Antistatic and Non antistatic version
• All types of end connections available
• Available in standardized sizes
• Tailor made / Custom made.
• Breather bags designed for breathing /
• Pressure leveling of vessels and hoppers.
• Might be required using 100% sealing.
• Couplings and fittings on process
• Components and flexible connections (sleeves).

Breather Bags are designed for venting equipment like hoppers and contained vessels. In sealed and controlled applications, venting is required to prevent overpressure or negative pressure in your contained process equipment. PNV 7506 AS FG is the standard Filcoflex material for Breather Bags. This material is 100% breathable, permeable, and made from needle felt antistatic food grade polyester. It is compliant with FDA, (EC) 1935/2004 and (EC)10/2011 food contact standards. Breather Bags in PNV 7506 AS FG are safe for use in ATEX environments following independent testing with laboratories.This product is also available in other materials, polyester needle felt with or without membranes, non-anti-static, and non-food versions, as well as our 100% PTFE breathable fabric “PTFE 310”.

Breather bags have a standardized length of 300mm, for both the conical top with eyelet as well as the round flat bottom. Any custom length can be provided from 100 to 2000 mm in increments of 5mm without any extra charge. Every breather bag can be made with support rings or reinforcement rings for negative pressure or overpressure. The use of a filter cage is also recommended in negative pressure applications to prevent collapse of the breather bag.