pcp compressor 4500psi Oil Water diving Filter 300bar 30mpa L350mm*OD49mm*ID36mmAnyone use one of these on their compressor? Looks to have all the multi elements to do a good job to clean up the air before it gets pumped into a PCP or tank.
I have that filter now with just the cotton pack. Seems to work well but I did get the pvc pipe and other stuff in the pic. I have just been too lazy to make it Not sure if it is any better or not.
I have that exact filter on order and is scheduled for delivery today the 9thI'll see how it works and may decide to remove the charcoal to make more room for either the desiccant or molecular sieve
My choice, if I had a compressor, would be to have a medium sized, cotton filled filter first in line, to catch droplets/mist, and then a larger filter, like the one above, with a full fill of molecular sieve, or activated alumina. The activated alumina has a slightly lower drying temperature.
Quote from: USAFANG67 on August 07, 2018, 03:29:30 PMpcp compressor 4500psi Oil Water diving Filter 300bar 30mpa L350mm*OD49mm*ID36mmAnyone use one of these on their compressor? Looks to have all the multi elements to do a good job to clean up the air before it gets pumped into a PCP or tank.I bought one of the Tuxing filters with the factory filter and am impressed with it and recommend it to anyone looking for a reasonably priced filter that can be recharged. The cartridge will not retrofit existing Xin Yong Shi or Tuxing filters that come with the cotton tampon filter elements. The cartridge filter has cavities machined into each end cap which the older models don't have. At this point Tuxing factory doesn't sell cartridges separately even if they did fit. I agree that the Tuxing cartridge wastes space with the clear silica. I found that their clear silica doesn't even change color when moistened so what's the point? It is easy to disassemble and repack their cartridge if you have extra desiccant. I removed the clear beads and refilled my cartridge with 13x zeolite seeded with blue silica beads. If you're not filling a dive tank to breathe the air or use a compressor that doesn't put out oil mist you can omit the charcoal and add more desiccant to the cartridge in its place.
Thanks for posting. That makes it much easier to understand the configuration. It looks like a pretty solid design if you can compress the 13X media enough.
Quote drierite filter Is it designed to fit in the gold filter housing?The site doesn't say if it will work in a HPA (3k-4k psi)$122 rather expensive unless your using it for a lab environment.
The purported channeling issue never made sense to me. The issues that I foresee happening with loose media are less media per volume and increased friction between beads. The friction will create dust and that is not good to get into guns etc.You also don't want too much packing force as to crush media. Also a packing method that applies some tension to the media so that as the media settles it cannot move back to it's previous space.A pretty effective solution I have seen is implemented in a drierite filter I own. There is a felt pad then a perforated stainless steel plate and then a coil spring that keeps tension on the media. I have attached a picture of the setup.Thanks,Taso
Quote from: ACHiPo on September 12, 2018, 11:55:01 PMThanks for posting. That makes it much easier to understand the configuration. It looks like a pretty solid design if you can compress the 13X media enough.Evan,The bead compression issue is just creative marketing to direct people to invest in pricier filtration systems. The filter I make is more tightly packed than the Tuxing factory cartridge and is as tightly packed as commerical replacement cartridges. If you think of air compression logically, the air channeling myth holds no water, no pun intended. Slightly moist air passing through a filter is a gas with water molecules present. The tiny entrance and exit holes in a filter housing combined with the high compression and air flow results in a significant dwell time in a cartridge this large. Channeling is a real problem in the tiny chamber sized filters that come on the end of the fill hoses on the $300 and under class of compressors. They have small capacity and short dwell time in the filter. But in a gold filter, the beads in a cartridge are sufficient in quantity and volume that it is nearly impossible for moisture under extreme pressure to bypass all media packed in the filter the filter without being adsorbed and captured by Zeolite or silica. It isn't rocket science to compress beads in a filter cartridge. Hint: Dowel rod. Anyone handling my cartridge will realize this instantly. It isn't mushy or loosely packed. Regardless, air channeling is more likely to occur with an undersized cartridge such as the PVC pipe hack filters that leave a 1/8" gap inside the gold filter housing. If PVC O rings are truly sealing them the PVC will expand and crack due to the pressure differential from the compressed air inside the pipe compared to the unpressurized air in the dead space in the housing. The reason the pipes aren't cracking is that the O rings are leaking and lots of unfiltered air is channeling around the PVC.Some people may ask then why don't the smaller diameter Filtertech and Tuxing factory filters crack since they don't fit the diameter of a filter housing?It's because they are designed with O ring sealing systems that force the air through one end of the filter and then allow the filtered air to equalize the dead space inside as it exits the other end of the housing. The Tuxing factory filter has a cavity drilled inside one end cap that holds a cartridge nipple air sealed with 2 o rings. The dried air exits the cartridge and cavities in the black rubber gasket on the exit side allows some exiting air to equalize the pressure inside the housing. The only shortcoming of Tuxing cartridges is that the thick plastic walls and smaller diameter of the cartridge means less desiccant capacity meaning faster replacement cycles than a cartridge that is sized with enough desiccant to fill the entire volume of the gold filter's interior.
Matt,I wasn't recommending the entire filter. Only they way they used to keep tension on the media with the spring.That filter and media is for a different purpose.Thanks,Taso