How Safe is PEX Tubing? - GreenBuildingAdvisor
2010年12月13日 · Builders have climbed on the PEX bandwagon in droves. Cross-linked polyethylene tubing is increasingly taking the place of copper in residential plumbing systems for a variety of reasons: ease of installation, resistance to acidic water, and the virtual elimination of leak-prone fittings. It all adds up to a juggernaut for a building material that's only been available in the U.S. since the ...
PEX A vs. PEX B - GreenBuildingAdvisor
2016年5月26日 · I am obsessing over which pex to use for a whole house manifold installation. The choices are pex-a (uponor) vs pex b (viega). Uponor seems easier to work with, less kinking, better flow etc. What I am most concerned with is: 1.longevity (this is my forever house) 2. safety (leaching of chemicals into drinking water) I am on a well. …
Three Types of PEX Tubing - GreenBuildingAdvisor
2022年11月1日 · PEX-b In a recirculating heating system that uses high- temperature chlorinated water, plastic pipes are more susceptible to weakening over time. Although tubing from all three manufacturing methods has met ASTM standards for chlorine resistance, this is the only PEX to have passed the stringent chlorine-recirculating standard of the product ...
Lingering Questions About PEX - GreenBuildingAdvisor
2016年6月8日 · PEX can come in one of three categories, called PEX-a, PEX-b and PEX-c. In some applications it’s layered with metals such as aluminum. Overall, consumers can choose from at least 70 different brands that have been certified by NSF/ANSI 61. This PEX water line has a layer of aluminum to help the pipe retain its shape.
Making the Best PEX Connections - GreenBuildingAdvisor
2016年6月20日 · For Richard McGrath, PEX-A is at the top of the heap. “PEX-A is produced with a better manufacturing process than PEX-B as the crosslinking takes place during the extrusion process,” McGrath writes. “PEX-A products usually achieve an 85% crosslinking while PEX-B products average a 65-70%.”
Alternatives to PEX piping to avoid chemical contamination and …
2024年2月3日 · In summary, PEX piping contaminates water and there is huge variation between brands and even within brands based on batch. It does seem worse at the beginning, as new piping must be flushed for some length of time to “remove” the contaminants and off-gassing.
Can PEX pipe be reused after a fitting is removed?
2015年11月27日 · Most supply stops will be threaded for a 3/8" hose. Your faucet connection will likely be the same. FYI, if u intend to do any more diy plumbing, the stainless steel cinch clamp system is almost foolproof, and the tool is approx $30 dollars. Compression fittings on pex also work fine, but use a stiffener in the pex.
Sealant Compatible with PEX Pipe - GreenBuildingAdvisor
2023年10月26日 · Cross-linked polyethylene, which is what PEX is made from, does not weld in a strict sense because it doesn't melt, it turns brown and gets brittle when heated. However, regular polyethylene does melt, and it adheres to PEX when liquified. This kit is recommended by the manufacturer specifically for repairing PEX:
3/4 pex max flow rate - GreenBuildingAdvisor
2019年10月23日 · I’m going to pex manifold, but will have a whole house water system in the line that is rated for 14 gpm max. The long details: City Home is 3/4 pvc schedule 40 in from main, then it’s reduce 1/2 ,trunk and branch copper all done with 1/2.
How long can PEX be exposed to sunlight through a window?
2023年2月16日 · If the PEX has a UV stabilizer in it (check the product docs), it will hold up a lot better. The window glass will block much of the UV as has been mentioned, and the Low-E coatings block the far infrared which is what tends to heat things up and cause damage that way. My usual test is to scratch the material with my fingernail.