Stormwater and wastewater (sewage) systems can be built as separate or combined facilities. The more modern houses and businesses now have separate piping systems for sewage and stormwater.

The purpose of a steel gate valve is to stop the flow of liquid; usually in an emergency. You will find a steel gate valve installed in many things.

Oil, natural gas wellhead valves of the nominal pressure level for the API2000psi, 3000psi, 5000psi, 10000psi, 15000psi, 20000psi; nominal diameter of DN46 ~ 228mm (113/16in ~ 9in); temperature rating

Can someone tell me why most piping diamgrams show drilled holes in bolted flanges straddling the vertical centerline, so as to not have a hole at top dead center?

I understand that since I cnat locate that end plate with the power beyond port, that I can drill and tap a port for it. Does anyone know of any tip or tricks that might keep from ruining this setup.

I have a problem with my domestic heating system. what happens is that the cold water supply from the header tank in the loft is also being heated when the boiler system is running - what we have effe

I always use 1.5, no matter what pipe size, length. Today, when I read a report prepared by another engineering firm, they put 0. what is you guys' suggestion?

Virgin PC/ABS's MFI value is 7 and PC/ABS molded part's value is 10. My customer insists on that increasing from 7 to 10 shows that there is a problem with my process and material was decomposed.