Peasant,
Can you share more info on the valve you found? Make and model? I sometimes get involved in similar applications and am interested in what you found.
The piping/flange manufacturer should have installation procedures for their flanges, but Mr. Perry pretty much has it right. Full face gaskets, typicslly a "softer" material (EPDM, Viton, Red Rubber), 1/8" or 1/4" thick, washers under the bolt/nuts (that is important).
Most piping/flange...
I don't think you will find a full port plastic ball valve in that size. As ZDAS found, best bet for that size will be gate valves. There are also diaphragm valves available, but will be a weir style. Check out www.asahiamerica.com
Air receivers are a pretty "standard" item made by many firms. I would think it would be simpler to just buy from a regular producer of these items, even if they have to modify them slightly for your needs. Then you get all the stamps, approvals, etc....
Look at UL, I know they have standards for underground gas tanks, both in metals and fiberglass. I just can't remember the numbers off the top of my head.
Although the HDPE may be chemically compatible, I suspect you'd have some problems with the local fire marshall. There is really no way to effectively ground a HDPE tank. We had once instance where a methanol supplier wouldn't fill a poly tank. I'd look at carbon or stainless, built to UL142...
Are you injecting something into the line with the tubing? If so, look up "injection quill" and you may find something that will work. Or, why not just drill and tap the PE or PVC pipe, assuming it has enough wall thickness, and use a MPT x Compression fitting like Jaco or Parker?
Both are ABS systems for compressed air, and as such would probably be considered "equals". However, Chem Aire follows IPS dimensions, I think Duraplus follows metric DN dimensions, if that matters. Both have adapters to get to NPT, flange, etc...
Both also have issues with some synthetic...
I recall seeing a procedure where "shoulders" made from split pipe were solvent welded either side of a standard pipe clamp to act as anchors, but can't find the reference offhand. The clamp was not tight to the pipe, more as a guide. I'd check Chemtrol (Nibco) or Harvel, both have pretty good...
Do NOT use PVC for compressed air! All the major pipe and fitting manufacturers advise against PVC for compressed air and you void all warranties. In a failure, PVC will become like schrapnel and the compressed air has a lot of energy. If you have a corrosive environment, look at some of the...
Check out the George Fischer web site. They make both IPS and DIN dimension piping systems and may have the information you need on their site. www.gfpiping.com
Also may want to check Spears Manufacturing, although I don't know if they have the DIN info. www.spearsmfg.com
You could use a small centrifugal pump (the mag drive mentioned earlier is a good choice) with a couple eductors in the bottom of the tank to provide continous mixing. The nice thing about the eductors is no moving parts! If you do use the mag drive pump, make sure they trim the impellar for...
Some above ground fuel storage tanks are encased in concrete to protect against vehicle impact, ballistics, etc...Check out www.convault.com
But I agree with vesselguy about this application.
Most PVC pipe has some UV inhibitor added (TiO2 I believe), but over time the pipe will become chalky on the outside and more brittle. jte and moltenmetal are correct, use latex paint, not solvent based paint. If this is an existing line (already weatherd), you may have trouble getting the...
Your pipe is pressure rated to a maximum 330 psi at 73 Deg F. Pressure rating gets derated for higher temps. Also, the type of fittings you have installed make a difference as well. If they are schedule 40 fittings, you have a pressure rated system to the limits of the lowest rated component...
Sounds like horse feathers! Both products are extruded, only difference is wall thickness (as you pointed out). There is alot of schedule 40 buried pipe out there. Many plumbing installations use sch40 with DWV fittings. Check out www.harvel.com They have information on burial, and they...
In that size in schedule 80 you are limited to solvent welded, maybe a victaulic connection for straight runs (make sure they roll groove the pipe, NOT cut groove). Connecting to steel is usually done with standard ANSI flanges, which are available in PVC. Check out www.harvel.com. They may...
It's been awhile since I worked with PVC piping! My assumption was off! Thanks for the info.
It appears the CPVC CTS system is SDR 11, rated at 400 psi @ 73 Deg F
Your thinking of sch40 makes some sense, but watch for the hot water side!
As said before, the local codes trump all!
