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CPVC sprinkler pipe inside a firestop mock-up. Chlorinated polyvinyl chloride (CPVC) is a thermoplastic produced by chlorination of polyvinyl chloride (PVC) resin. CPVC is significantly more flexible than PVC, and can also withstand higher temperatures. Uses include hot and cold water delivery pipes and industrial liquid handling.
This is a list of notable types of weapons which saw use in warfare, and more broadly in combat, prior to the advent of the early modern period, i.e., approximately prior to the start of the 16th century.
The Boeing 367-80, also known as the Dash 80, is a retired American four-engined jet prototype aircraft built by Boeing to demonstrate the advantages of jet propulsion for commercial aviation. It served as basis for the design of the KC-135 tanker and the 707 airliner. The Boeing 367-80 first flew in 1954, less than two years from project launch.
[83] [84] For the 4×50 yard freestyle relay the next day, she swam the second 50 yard portion of the relay in 20.98 seconds, contributing to a final time of 1:25.70 and a silver medal-win. [ 83 ] [ 85 ] In her first final on the evening of day three, she placed fourth in the 100 yard butterfly with a time 50.09 seconds. [ 83 ]
The GE Dash 9-40CW is a 4,000-horsepower (3,000 kW) diesel-electric locomotive built by GE Transportation Systems of Erie, Pennsylvania, between January 1996 and December 2004. 1,090 were built for Norfolk Southern Railway, as road numbers 8889 to 9978. 53 GE Dash 8-44CWs built to Dash 9 specifications were also built for CSX Transportation, carrying road numbers 9000 to 9052.
Sumerian phalanx-like formation c. 2400 BC, from detail of the victory stele of King Eannatum of Lagash over Umma, called the Stele of the Vultures. The phalanx (pl.: phalanxes or phalanges) [1] was a rectangular mass military formation, usually composed entirely of heavy infantry armed with spears, pikes, sarissas, or similar polearms tightly packed together.
[3] [10] As a junior he was a member of the conference's initial Pac-12 Academic Honor Roll that replaced its Pac-12 All-Academic teams. [4] In his college career he was a starter in all 40 games he played, all at right tackle. [13] Rather than play an additional season, Curhan declared for the NFL Draft. [3]
The number system, like Sch 40, 80, 160, were set long ago and seem a little odd. For example, Sch 20 pipe is even thinner than Sch 40, but same OD. And while these pipes are based on old steel pipe sizes, there is other pipe, like cpvc for heated water, that uses pipe sizes, inside and out, based on old copper pipe size standards instead of steel.