![]() The flexibility of PEX and using snap-in bend supports eliminate the need for many elbows. Excessive use of 90° elbow fittings should be avoided in any plumbing system regardless of joining method or materials. ![]() Of course, directional fittings result in the largest loss with elbows and branch tees having the greatest impact and straight couplers and tee runs having the least effect on flow rates. The fact is all fittings cause a pressure drop, though the degree varies by type and material. Some manufacturers insist incorrectly that cold expansion fittings don’t cause pressure drops because they’re “full flow” fittings, not insert fittings. The difference in flow rates between the two types of fittings is negligible. ![]() ![]() There’s a common misconception that PEX-Acold expansion fittings have a 25% better flow rate than Viega PureFlow’s PEX-B insert fittings. If the distribution system is all or partly PEX, it’s important to know the facts about fittings, flow and pressure drops in order to make the correct calculations. ![]() Click here for original article.ĭesigning a plumbing system so that every fixture will have an adequate flow of water is one of the most important calculations that plumbers and plumbing engineers perform. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |