Kitty litter desiccant

[Hammer]

I recently learned (after dousing some electronics) that some kitty litter is 100% silica. I purchased 4 lbs for $7 at the grocery store.

If you could come up with an inexpensive pressure vessel for the first stage compressor in a shoebox setup(85psi for the standard), you could make a cheap diy dryer for your shoebox.

 

[T3PRanch]

Better add a large capacity .5 micron filter after the kitty litter to keep that abrasive silica out of the workings of the compressor AND ultimately the valve in your gun.

Thurmond

 

[pbguns]

Also works GREAT in bench bags.....(instead of sand, corn cob, or clay cat litter). 
I have used it in a set of bags for a couple years now.

 

[X27]

Would this be useful to use like a sicila packets to keep humidity down in a gun cabinet.. Like put in a jar of it with some holes poked in the lid?

 

[X27]

I live in a humid area and had some problems with surface rust.

 

[Hammer]

It is 100% silica, same thing as the little packets. I have always heard a light bulb or "golden rod" was the best thing for a gun safe, I suppose it would be better than nothing.

 

[Killzone]

I think standard PVC Schedule 40 irrigation pipe at 1.50 dia has an operating pressure of 198 psi and a minimum burst pressure of 1060 psi.
At 198 psi that would give more that 2 times the working pressure.

Schedule 80 will give you around 50% additional.

 

[BigTinBoat]

"Killzone"I think standard PVC Schedule 40 irrigation pipe at 1.50 dia has an operating pressure of 198 psi and a minimum burst pressure of 1060 psi.
At 198 psi that would give more that 2 times the working pressure.

Schedule 80 will give you around 50% additional.

PVC pipe is NOT recommended for compressed air (above ground) unless "shielded". It is very dangerous even at 100psi.

 

[Killzone]

Thanks for the response TinBoat. I am aware of the potential problems using the pipe in some applications, like in plumbing for shop air - although I don't think it applies here.

Perhaps you can share what your concerns are in using the pipe in this application or others.

KZ

 

[BigTinBoat]

"Killzone"Thanks for the response TinBoat. I am aware of the potential problems using the pipe in some applications, like in plumbing for shop air - although I don't think it applies here.

Perhaps you can share what your concerns are in using the pipe in this application or others.

KZ


From a USP

http://www.usplastic.com/knowledgebase/article.aspx?contentkey=787


No, PVC and CPVC pipe should not be used for compressed air lines.
Here is what the manufacture has to say about it.

WARNING! The use of plastic piping with compressed air or gasses can result in severe bodily injury or death.





From OSHA

https://www.osha.gov/dts/hib/hib_data/hib19880520.htmlSUBJECT:

• Safety Hazard Information Bulletin on the Use of Polyvinyl Chloride (PVC) Pipe in Above ground Installations

The Dallas Regional Office has brought to our attention a potential serious hazard existing with the use of polyvinyl chloride (PVC) plastic pipes for transporting compressed gases in above ground installations. An employee in a Texas plant was injured recently by a rupture in a PVC compressed air line. Plastic projectiles from the point of rupture caused lacerations of the employee's hand. This is noteworthy because the Plastic Pipe Institute, in its Recommendation B dated January 19, 1972, recommends against the use of thermoplastic pipe to transport compressed air or other compressed gases in exposed plant piping. (See attachment.)Furthermore, sections 842.32, 842.43 and 849.52(b) of the American National Standards Institute/American Society of Mechanical Engineers (ANSI/ASME) B31.8-1986, Gas Transmission and Distribution Piping Systems Standard, limit the operating pressure of plastic piping distribution systems to 100 pounds per inch (psi) and prohibit the installation of such systems above ground except where ". . . the above ground portion of the plastic service line is completely enclosed in a conduit or casing of sufficient strength to provide protection from external damage and deterioration." (Excerpts attached.)