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DIY high pressure Molecular sieve filter cartridge and sleeve (lots of pics)

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  • DIY high pressure Molecular sieve filter cartridge and sleeve (lots of pics)

    This thing is made entirely of 316 stainless steel and weighs about 40 pounds.

    Parts used:

    scrap piece of 2 inch seamless stainless steel pipe (very thick schedule 80)
    stainless steel inner tube (this is overkill, should of used a thinner piece)

    scrap 1 inch x 1/4 inch stainless steel square tube with plastic endcaps

    scrap 1/4 inch stainless steel plate

    2, 1.5 in. hydraulic caps (sae o-ring boss)

    2, 3/8 stainless steel U-bolts

    1/4 inch perforated sheet cut into rounds

    bending, welding and the 1/4 npt nipples were done and supplied by the welder for 40 bucks

    left over felt i had from my coltri filter

    stainless steel spring

    bleeder valve for emulsion from hydraulics shop

    1,C-clip used for retention

    total cost was about 300 bucks, 1/3 the price of a similar filter cartridge



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  • #2
    in full disclosure i spent almost 1,000 bucks on a tap and o-ring boss broach so i can make more....

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    • #3
      Lovely job. By rights you should shift these to the scuba boys. I'd take one off you, it looks superior to my own, but as you know I've got 2 x Maxi Filter Towers from new on my set-up. Works well and have not regrets because the first catches 95% of the crud and oil to leave the second clean enough to do the actual work. And come MS filter change I simply swap the fairly clean second cartridge where the first was, and actually change only the second.

      Er... 'you're off your trolley', one-short-of-the-full-load - you do know this don't you? Oh good.
      Last edited by BritCNGUser; 08-25-2017, 10:04 PM.

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