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PEX, on the other hand, while considered by some installers to be highly flexible in smaller diameters under 1″, loses much of its flexibility and becomes difficult to work with in diameters 1″ and above. #4 Faster, easier installations. The use of BlazeMaster CPVC pipe and fittings leads to a fast and easy installation process-regardless of the pipe size. CPVC stand-alone and multipurpose systems are not required to perform this test, thus saving time and money on every system installed. This involves additional labor hours and scheduling of the AHJ to be on-site to witness the test. #3 No “Bucket Test.” Per their respective UL listings, PEX multipurpose systems require a flow test (“bucket test”) after every installation is completed in order to obtain approval from the Authority Having Jurisdiction (AHJ) on the hydraulic performance of the system. In order to deliver sufficient water flow to meet code, PEX pipe must often be upsized or installed with the addition of a separate pump-both of which add to the total cost. Superior hydraulics, as previously discussed, is one reason as they can allow for pipe downsizing and reduce the number of sprinkler heads when using CPVC pipe. #2 Lower total installed costs. Recent side-by-side cost comparisons, created as a result of designing different fire sprinkler systems for the same home, confirm that a CPVC fire sprinkler system-and more specifically, a stand-alone CPVC system- represents the most cost-effective alternative.
![cpvc fire sprinkler system design cpvc fire sprinkler system design](https://sprinklerage.com/wp-content/uploads/2019/05/figureA-e1557353003725-660x330.jpg)
This major difference in internal diameter, which actually allows a ¾” PEX pipe to fit inside a ¾” CPVC pipe, allows for increased water flow. This compares favorably to PEX pipe, which is manufactured to Copper Tube Size (CTS) SDR 9 dimensions.
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#1 Superior hydraulics and water flow. BlazeMaster CPVC fire sprinkler pipe is manufactured to Iron Pipe Size (IPS) SDR 13.5 dimensions. Here are 10 reasons why CPVC Piping CPVC pipe and fittings are the smart choice for all your residential fire sprinkler system installations and why, across the globe, they are specified more often than PEX for fire sprinkler applications by a wide margin. In order to position yourself to take advantage of the expected increase in demand for residential fire sprinkler systems, you need a proven-reliable, cost-effective, easy-to-install piping system material.