What is CSST? - CSST vs Black Iron Pipe

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PEX Universe (aka PEX-U) is a leading industrial equipment supplier offering high quality heating and plumbing solutions for real life professionals, homeowners + DIYers. The mission of the brand is to equip and empower consumers by providing the best products for heating and plumbing, delivering the most authentic customer service, and offering the most competitive prices available online. PEX Universe was established in 2004, and is based in Brooklyn, NY.
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CSST vs Black Pipe for gas applications:
It can be argued that CSST lacks the pricing advantage over black pipe, however, it easily makes up for the difference since black pipe uses a multitude of fittings and shorter pipe runs (pipe nipples), which, when added together, either meet or more often exceed the CSST price point. According to GRI (Gas Research Institute), using CSST instead of black pipe can reduce labor alone by as much as 65%. We’ve prepared a list of additional comparison points below for further consideration.
- CSST is flexible and thus requires a fraction of the fittings used for the rigid black pipe
installation - this makes installation much quicker and easier.
- Less connections also means less potential leak points.
- Inherent flexibility also makes the CSST piping a preferred choice in areas prone to
earthquakes or soil shifting.
- Black pipe lacks the arc-resistant jacket, which makes it more prone to electrical arc damage.
- No special tools or machinery for cutting and threading is needed for CSST pipe.
- A lot less support is required due to lighter weight of the CSST, which makes it a piping of
choice for attics and crawlspaces. Less support also equates more freedom of movement and
resistance to screw penetration.
- Light weight makes is easier to store and transport the CSST gas tubing.
- ProFlex CSST connection system is the easiest and most installer-friendly in the industry.
- Unlike most black gas pipe, which is imported, ProFlex is made in the USA and 100% factory-
tested.
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