Fittings Definition and 18 Threads

Hi - attached is 3 pages from the PARKER o ring guide and I am having trouble with specs in the military straight thread tube fitting chart not fitting the designated o-ring. I can't find a different resource for something in my thread size needed - 5/8-18 Does anyone have an alternative...

When soldering a brass fitting (e.g. https://www.pexuniverse.com/1-pex-x-3-4-pex-brass-pex-copper-fitting-adapter-lead-free-brass ) to copper (e.g. a 3/4 inch copper coupling) I think there is a danger that copper gets hot enough to melt the solder, but the brass fitting (being more massive)...

Hello everybody! I've notice that when using NPT fittings, the female fittings usually doesn't take all of the male threads: This has never bothered me since these are commercial fittings and the engineers who designed them know what they are doing. But now, I need to make NPT holes in a...

Diagrams of PVC sewer plumbing show vertical pipes connected to horizontal pipes with fittings that make a 90 degree turn. So how, in practice, do we achieve the recommended minimum 1/4 inch per foot slope for the horizontal pipes? Do we make the horizontal pipe slope by installing the...

Hello everybody! I bought some fittings for a feed system I'm building, and I need to handle pressures between 150 and 200 psi. I noticed some of them have max working pressures of about 1000 or 3000 psi, but others have relatively lower ones (150 psi, see...

Does anyone know the reasoning behind the decision to use 37 degrees for the conical taper on an AN fitting? I understand this is a standard dimension for the fittings, but I am hoping to get a little background on how this came to be.

Does an ordinary pipe fitting, such as an elbow work when screwed onto a male compression fitting"? - or won't the connection seal properly? The situation shown in the photo: I need to replace a 1/4 inch copper tube water supply line (to the ice maker on a refrigerator) with a 1/4 inch braided...

Hello! When water flows through fittings like U bends, elbows, etc, is kinetic energy lost and velocity reduced?

Hi everyone. Let me give a little bit of background on the problem I need help understanding. I want to plumb an aquarium that has a sump and move the water from the sump to the main aquarium using a pump and 1" PVC pipe. The total system pipe length is going to be roughly 10 feet total with...

I am looking all over and can't find the standard for the welding pipe with fittings into '4-'12 pipe array, by standard i mean the welding type, pipe\fitting preparation and any other Info\tips that can help.

Hi, I get parts made in China, and I need to make a full CNC drawing. It is a modified 1/4" BSP nut and orifice fitting. I cannot find anywhere how to draw the nut and orifice so they work correctly. This is the part they make the most mistakes with, as the tolerances are small. It is not...

Hello, I'm attempting to restore my Plasma Sciences CrC-150 Sputtering system, and I'm having a terrible time working out the source gas fittings. Each is a brass compression fitting with a roughly 1/4" mean thread diameter. The last time I used this machine, a chemist helped me by...

Hi, I am trying to create a high-vacuum system using a diffusion pump and a mechanical roughing pump. I need to replace my mech. pump's rubber hose with something that will not leak into the vacuum. Any suggestions on what hose and hose fitting would work best to weld permanently to my base...

I need to install 4 bar stainless steel piping system (40 meters length, 20 Tee, 40 Elbow) . do you recommend using compression fittings or welded fittings. I know that compression fittings is easy to assemble but they have leakage problems. Butt-Welded fittings on the other hand would...

I've seen some different types of water jet cutters and they are indeed cool :) I read that these operate in areas around 5 000 bars (~70 000 psi) which is so much I can't even grasp it! But what I wonder is what kind of piping and fittings could even withstand this?? A regular house has water...

I have a practical question about my new above ground swimming pool that is 48 inches deep and 16 feet by 32 feet in width and length. My question is, there is a bottom main drain that the water travels through to the filter/pump and is returned through the side return piping. My question...

Has anyone out there had any successes or failures on high pressure (up to 400 psi) quick connect connectors? I've done the basics McMasterGoogleGlobalSpec search, and have come up with a few different kinds. There is a large variance in price, so I wanted to see what anyone has had...

Can anyone recommend any good references for equivalent length data for valves and fittings? All of my fluid mechanics books only have data for fully opened vales, but I'm currently working on a project where I need to know the values for partially closed valves. I tried to do a Google...