Moisture filter question

[Corvid_hunter]

I have a inline moisture filter for my pump. It currently has the tubular cotton filters in it. Can I just remove them and pour in some of the replacement moisture media? I'm guessing I would need to to leave one of the tubular ones in at the inlet and one at the outlet side to keep the beads in place?

 

[PEP3]

I have a inline moisture filter for my pump. It currently has the tubular cotton filters in it. Can I just remove them and pour in some of the replacement moisture media? I'm guessing I would need to to leave one of the tubular ones in at the inlet and one at the outlet side to keep the beads in place?

I do and it seems to work fine, but I am definitely not an expert with pumps and filters.

 

[WorriedMan]

My concern would be corrosion from having moisture media, combined with trapped moisture, in direct contact with aluminum. Molecular sieve filters use a plastic insert to separate chemicals from cylinder walls. WM

 

[Gerry52]

I cut a 1/2" piece off the cotton filters & then cut that in half to create 1/4" plugs at each end of the filter housing after putting in better drying media. Works just fine. Mainly to filter any dust or particulates from the silica beads my filter is filled with. I stopped using charcoal & fill the whole tube with silica beads. After using compressor I always open my filters to allow air drying of filter media.

 

[Ranchibi]

My concern would be corrosion from having moisture media, combined with trapped moisture, in direct contact with aluminum. Molecular sieve filters use a plastic insert to separate chemicals from cylinder walls. WMView attachment 532065

I use one very similar to this one . Got mine from amazon and it came with an extra pre-filled insert and you can purchase just the pre-filled inserts.

 

[AlanMcD]

You could make a plastic liner for yours out of some of the plastic that is used for transparencies - cut it to the right length, then roll it up and tape it to the right diameter/shape. Then use the filters (cut as already described) as end plugs with the beads in the center. It should work fine.

 

[WorriedMan]

You could make a plastic liner for yours out of some of the plastic that is used for transparencies - cut it to the right length, then roll it up and tape it to the right diameter/shape. Then use the filters (cut as already described) as end plugs with the beads in the center. It should work fine.

A member recently explained why plastic insert only has "O" ring on one end (you can see this in M50 Instruction Manual photo.) Seems pressure needs to equalize between plastic insert and aluminum housing to prevent insert collapse. Always appreciate learning new things on this forum. WM

EDIT: Thanks to JackHughs for the explanation!