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The pvc is an insulator, so grounding it every few feet helps some, but doesnt actually drain static charge.The foil tape and braid idea is pretty good - high probability of working.You might be able to get away with just a bare conductor running the length of the duct, as long as it maintained contact all along it, but contact in only one.
My own shop dust collection system is piped with 4 plastic sewer pipe, which, by the way, is abs, a plastic both tougher and more flexible than pvc.Thats the same plastic used in the old days for telephones, back when western electric made them to last.
How did grounding pvc dust collection pipes work out back to power tools, hardware and accessories forum.I have the black pvc pipe and flex hose going to my machines permanently until i move them.In several places that theres never been a documented instance of an explosion in a small-shop environment from a dust collector.
So ive finally broken down and decided to get serious about dust collection.I picked up a delta 50-760 1.5 hp 1200cfm dust collection, 60 of schedule 30 4 pvc pipe, and a ton of fittings, blast gates, flex line, adapters, wire clamps, pvc gl.
Plastic pipe or pvc pipe is unsuitable for dust collection for three reasons first, plastic pipe fittings are not offered in the diversity required to meet design requirements.Second, plastic pipe elbows have a short radius, which encourages clogs and compromises system efficiency.Third, and most important, plastic pipe is non-conductive and builds up a static charge as charged.
Grounding pvc and other dust collection myths by rod cole i am most struck by is how hard these guys have to work to get dust explosions in the lab.It is not hard to get igni-tion if one makes a very carefully controlled, nonmoving cloud with just the right dust mix, and introduces a spark from a very carefully designed sparking mechanism.
If you have made an investment in a powerful dust collector, that is a great first step toward creating a healthy shop environment.For purposes of this article i will assume that you have worked with your vendor to choose a dust collector that is capable of delivering enough air flow ideally 1000 cubic feet per minute at 4000 feet per minute at each tool to remove all of the fine dust that.
Connects schedule 20 pvc to standard 4 dust collection fittings, such as elbow connectors.Requires silicone adhesive not included to seal.Schedule 20 pvc sewer pipe is thin walled pvc pipe commonly found at home centers.The term schedule 20 merely refers to the wall thickness of the pipe.
The dust is an insulator just as the pvc is.The dust is in contact with the grounding for only a fraction of a second, even in a metal pipe.You will remove very little charge from the dust.Metal ducts keep the dust from charging.Dust charges perfectly well in metal ducts.
As we know, wood dust is combustible, as well as pvc pipe, never mind the static buildup, which is a source of ignition.When we create a duct system, the interior should be as obstruction-free as possible.A copper wire will snag chips and curls.In addition, many extraction systems are abrasive, such as the conveying of hardwood chips.
Good article, except grounding a pvc dust collector pipe is pointless.Pvc is an insulator, so if you ground it in one point, the rest of the pipe will still be charged.Mike murray on june 16, 2017 at 1229 pm.Im not trying to be rude, but your statement means you dont really understand the problem and why it is grounded.
Pvc is commonly used in dust collection systems.Typically for longer runs you should use 6 or larger pipe, regardless of the material.If youre using pvc, the larger, less expensive pipe is commonly available as sewer drain pipe.As of may 2015, there have been no known fires caused by a static discharge in a pvc pipe from a dust collection.
Static electricity requires grounding a dust collection system which is why air handling systems pro-vides galvanized metal spiral pipe and fittings and flexible hose with wire helix.A plastic or pvc pipe system cannot be adequately grounded.
Using pvc pipe instead of dust collector spiral pipe or thick hvac pipe helps considerably as you dont hear nearly as much sawdust rattling in the pipes.If you use a small section of flex hose between your ducting and your blower and cyclone that will also make a huge difference.
Grounding your plastic pipe is not a safety issue.If you are concerned about getting zapped from time to time, then ground the parts that are within normal operating reach.Otherwise, forget about it.Srd pipe is a lot cheaper than smooth walled metal pipe for dust collection.Hvac metal pipe may be comparable in price, but it is crap.
For example, if your dust collector has a 6-inch inlet, use 6-inch pipe and fittings as far as practical before transitioning down to match the woodworking machines dust port.Using a pipe larger than the inlet on the dust collector will not increase airflow.Can metal and pvc be mixed in a dust collection system.
Grounding dust collection the basic premise of grounding the system is to keep the air and pvc in constant contact with a ground.Grounding of insulated material such as glass, plastic, or pvc is accomplished by wrapping the pipe with a braided copper wire and attaching it an various points.
What is the optimal way to ground a pvc dust collection system you cannot ground a pvc pipe.Charge will accumulate on both the interior and exterior surface.You can reduce the accumulation of charge by running a wire inside the pipe to reduce internal charge buildup.Running a wire outside the pipe to reduce external charge buildup.
Ive had a similar 4 pvc duct system with approx 50 of pipe, a large debris cyclone can, and three gated openings running for years without any glue.The system is run by a 1.5 hp industrial two bag dust collector and it runs fine.
Making the pipe larger.My first experience with how much pvc can be stretched was with my friend who does swimming pool repairs.One day he was looking over the mess i had getting from my 4 dust collector pipe to my two heavy 100mm about 3.91 european woodworking tools.He said he would help me out.
Im redoing my dust collection system, and running some pvc pipe for the dust collector hose system.When running the grounding wire, should i run it inside the pipe, or outside the pipe.On my old layout using dc hoses i did run it inside the hose, but just wondering if it would still work when run on the outside of the hosepipes which is easier to run.
Running wire on the outside of the pvc pipe does very little according to those experts in the know.Those same experts are it should be run internally about a 12 off the internal wall of the pipe which is a huge unnecessary pia.Also no known issues have been recorded with regards to static and pvc pipe.
Since you have lengths of pvc, you do need to make a grounding path to the dust collector housing, which in turn should have a grounding wire tracing directly back to your breaker box.Doing so through all of the duct is wise, as it will.
Dust grounding kit.Improves dust collection safety.Unless the hose has a reinforcing wire that can be grounded to the dust collector.In the case of pvc rigid pipe, similar static charge buildup will occur and some prudent folks add a bare drain wire to remove the charge.In a workshop where the pipe of either type is.