The Headline Guardian Membrane Separator filter consists of a highly porous PTFE membrane in a stainless steel or PTFE housing with two bypass ports, inlet and outlet ports. The ports and mounting bracket are designed to allow for permanent pipework, thereby enabling easy maintenance or replacement of the filter membrane. Within the housing 3 angled venturies cause the gas to be rotated beneath the membrane, helping to keep the membrane clean and at the same time allowing the finer gas molecules to pass through the membrane for gas sampling and leaving the larger liquid molecules to exit through the bypass ports. Further benefits of the Headline Membrane Filter are that it is extremely inert and is recommended for most applications, the only exception being hydrofluoric acid. It is always recommended to use a coalescing pre-filter and to use the membrane filter as the last form of protection. The membrane is currently available in high flow applications. Each assembly is supplied with a Hydrophobic/Oleophobic Membrane bonded to a Viton O-ring. The porous membranes are produced from pure PTFE; they are extremely inert and have very low absorption levels. There are two standard grades available for use in low to high flow applications. The M1H (0.1 micron) is a low flow type membrane suitable for most liquids and the M2H (0.8 micron) is a high flow type recommended for higher surface tension liquids. PTFE Membrane Specifications: Membrane Size MT.33.M1H MT.33.M2H Membrane Type Low Flow High Flow Material PTFE PTFE Diameter (mm) 33 33 Thickness (μm) 152 152 Maximum Temperature (ºC) 150 150 Recommended Flow Rate (LPM) 0.35 10 Membrane Micron Size 0.1 0.8 More about Guardian Membrane Separator Housings: Many sample systems require zero liquid entrainment, and demand the sample not to be altered. At the heart of our Guardian Membrane Series is a porous PTFE Hydrophobic/Oleophobic membrane which is supported by a stainless steel disc. As a wet sample enters, the membrane only allows gas or vapor molecules to pass through while all liquids are stopped. Our series of membrane filters are uniquely designed to allow the operator quick and easy membrane service while providing high performance filtration. The body contains an integral mounting bracket along with the inlet, outlet, drain, and bypass connections. The threaded cap is user friendly with knurls and flats for optimum infield serviceability. No connections are broken to service the membrane disc. Our GMS105 products also features an “Atomizer Plate” which spins the gas flow dropping much of the liquid mass out before contact is even made with the membrane. This rotation assists in keeping the membrane particle free too. We have further reduced the internal volume to minimize the sample lag time.
