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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.
PVC/CPVC – rigid plastic pipes similar to PVC drain pipes but with thicker walls to deal with municipal water pressure, introduced around 1970. PVC stands for polyvinyl chloride, and it has become a common replacement for metal piping. PVC should be used only for cold water, or for venting. CPVC can be used for hot and cold potable water supply.
Attempts have been made to increase the safety of bridges with pin and hanger assemblies by adding some form of redundancy to the assembly. Retrofits that add redundancy to pin and hanger assemblies include adding a "catcher's mitt"—a short steel beam attached to the bottom of the cantilevered girder that extends out beneath the suspended girder to "catch" the suspended girder should ...
In fire protection engineering, the K-factor formula is used to calculate the volumetric flow rate from a nozzle. Spray nozzles can for example be fire sprinklers or water mist nozzles, hose reel nozzles, water monitors and deluge fire system nozzles.
TUSTIN, CA - NOVEMBER 07: A stubborn fire at hangars at the former Tustin Air Base burns Warner Avenue and Legacy on Tuesday, Nov. 7, 2023 in Tustin, CA.
Tustin Hangar No. 1 fire, 11:48 am 7 November 2023. On 7 November 2023 at approximately 12:53am, a three-alarm fire broke out on the roof of the North Hangar. Orange County Fire Authority units responded, adapting a defensive strategy and letting it burn due to the risk of roof collapse. An investigation has been opened into the cause of the fire.
Loring Air Force Base (IATA: LIZ, ICAO: KLIZ) was a United States Air Force installation in northeastern Maine, near Limestone and Caribou in Aroostook County.It was one of the largest bases of the U.S. Air Force's Strategic Air Command during its existence, and was transferred to the newly created Air Combat Command in 1992.
Casing hangers must be designed to take the full weight of the casing, and provide a seal between the casing hanger and the spool. Casing Hangers may also be suspended within the wellhead by means of radial distortion of the wellhead bore e.g. the "Pos-Grip" method. This is installed to support the individual casing strings in the well.