Hello all. I just recently got a stationary electric pressure washer to install at my shop. 4 gpm. 4000 psi. and now I need to plumb it in. At first I just assumed that i'd use schedule 80 stainless and socket welds. Then I read something mentioning stainless hydraulic tubing. Now i'm told that the system at the new hwy. dept is threaded galvanized with probably class 300 fittings. Anybody install any of these ? I'm going about 100' in longest direction. Thanks in advance for any help.
No I haven't, buddy does sprinkler installs, 4GPM is pretty easy to achieve.. What does your water service come in size, material, well or city service, what about frost protection.. And lastly do you have a pipe threader or can you get one..
I do have a ridgid power threader. Problem is I need to pipe the 4GPM at 4000psi, not supply pressure to two outlet stations about a 100 feet apart. This is a hard wired central systems pump with 24volt remote control. I have no issues welding pipe but if heavy wall flaired stainless tubing is the proper way I can do that instead.
No problem, it might be in office folders.. But I can check.. A lot of sprinkler (commercial) are high pressure..
So, if you have pipe threader, I assume the correct schedule pipe for 100 feet at 4,000 psi, should be most economical way.. He pays engineer big money for drawings and engineer likes to give 2 options for every question.
TurboDiesel, you ever mess with any pressures of this magnitude? I mean, other than dealing with.....
3/4" sch 80, black iron pipe with threaded fittings will easily hold what you need. we ran 10,000 psi thru 3/4" schedule 80. I used to work at one of the largest water blasting companies in the midwest.
One station is going in the front of the building so everyone can plug in and wash off their vehicle's to get off road salt ect. And maintain the building. The second station will go behind the shop for general cleaning of equipment repair jobs etc. Plus now we have decided to build a cabinet washer (like a sand blast cabinet) so a third station.
seamless, no, IIRC stainless stress hardens and shortens the lifespan, pressure rating, more likely to crack. I was also thinking for the GPM you need you can probably go down to 1/2 inch. I am trying to find any charts I had but I think they have long since been disposed off. also if you go down to 1/2" you can go to schedule 40 which is a 15,600 burst
How about running 1" (or whatever size it takes) PVC to act as conduit and then just run high pressure hose through...we just bought a roll at work, was a lil more than $2/ft for 625' IIRC. Came with SS 1/2 MPT connections crimped on both ends. You can buy it in rolls of whatever length you need...and yes, 1/2" should be fine to achieve the PSI and flow you want.
Well that seems to be the way it's done in the dairy/meat world. Surely not the way I'm used to doing things. It's still on the table though.
I'm already thinking on 1/2" i'd be happy with schedule 80 and instrumentation fittings. Whatever I use I want to make sure that i'm leaning towards overkill and staying within the rated maximum safe working pressure of the components and rely less on bursting strength.
I smell a local govt. facility That's a lot of piping that will need to be installed and kept above freezing to avoid having people drive around to the back of the building. It seem's that if you budgeted $1000 a year to get a new gas operated p/w you'd be ahead. I must not understand the "whole deal" .
I already have a 16hp gas washer. The goal is to walk up and plug in the hose and push a button. The pump and all the piping will be inside the shop, always heated. The pump is set up with 24volt remote controls. Wall mount stations are readily available. Only the guys in my shop will use it, kinda a perk. I can run full 21' lengths of pipe as it's pretty much a straight shot.
