Hello from New Zealand
We service about 300 medical oxygen concentrators and I'm wondering if someone can recommend a grease or lubricant for the valve block used in the oxygen concentrators.
This is the type of concentrator.
https://www.med-electronics.com/Pla...ncentrator-with-SensO-p/inv-irc5lxo2.htm
And hopefully this link will show a picture of the valve block.
https://o2crs.com/product/4way-valve-invacare/
Inside the valve are 2 ceramic slider blocks, very similar to a couple of dominoes that have strategic ports and when the pressure rises to 35 PSI they slide over each other, maybe 3-4mm ? and about once every 5 seconds.
A common problem is after 10,000 hours (about 3 years), the lubricant between the sliders has dried and the valve block sticks, causing the concentrator to fail.
We can remove and clean the sliders and have tried a range of lubricants, but in general none seems much better than the others and they still dry out.
The output from the compressor is warm, maybe 35*c ? and flows at about 30 litres per minute, so a fair bit of warm air blows continuously over the sliders and lubricant.
Any suggestions on a thin, warm air tolerant, non-drying lubricant ?
Cheers,
We service about 300 medical oxygen concentrators and I'm wondering if someone can recommend a grease or lubricant for the valve block used in the oxygen concentrators.
This is the type of concentrator.
https://www.med-electronics.com/Pla...ncentrator-with-SensO-p/inv-irc5lxo2.htm
And hopefully this link will show a picture of the valve block.
https://o2crs.com/product/4way-valve-invacare/
Inside the valve are 2 ceramic slider blocks, very similar to a couple of dominoes that have strategic ports and when the pressure rises to 35 PSI they slide over each other, maybe 3-4mm ? and about once every 5 seconds.
A common problem is after 10,000 hours (about 3 years), the lubricant between the sliders has dried and the valve block sticks, causing the concentrator to fail.
We can remove and clean the sliders and have tried a range of lubricants, but in general none seems much better than the others and they still dry out.
The output from the compressor is warm, maybe 35*c ? and flows at about 30 litres per minute, so a fair bit of warm air blows continuously over the sliders and lubricant.
Any suggestions on a thin, warm air tolerant, non-drying lubricant ?
Cheers,