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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.
The following is a list of the 67 counties of the U.S. state of Pennsylvania. The city of Philadelphia is coterminous with Philadelphia County, the municipalities having been consolidated in 1854, and all remaining county government functions having been merged into the city after a 1951 referendum.
(*): A county of the third class that is determined to have a population of 500,000 or more may elect to continue to be a county of the third class. [5] (~): A county having a population between 35,000 and 44,999 may elect to be a county of the sixth class. [5]
This is a list of towns and boroughs in Pennsylvania. There are currently 956 municipalities classified as boroughs and one classified as a town in Pennsylvania . Unlike other forms of municipalities in Pennsylvania, boroughs and towns are not classified according to population.
The heat stability of raw PVC is very poor, so the addition of a heat stabilizer during the process is necessary in order to ensure the product's properties. Traditional product PVC has a maximum operating temperature around 60 °C (140 °F) when heat distortion begins to occur.
The following is a list of the sixty-seven county seats of the Commonwealth of Pennsylvania. The list includes forty-two boroughs , twenty-four cities , and one town . The ranking is based on the populations of each county seat during the 2010 census .
The following is a list of the 3,143 counties and county-equivalents in the 50 states and District of Columbia sorted by U.S. state, plus an additional 100 county-equivalents in the U.S. territories sorted by territory.
Pennsylvania is a state located in the Northeastern United States. As of the 2020 U.S. census, Pennsylvania is the fifth-most populous state with 13,002,700 inhabitants [1] and the 32nd-largest by land area spanning 44,742.70 square miles (115,883.1 km 2) of land. [2] Pennsylvania is divided into 67 counties and contains 2,560 municipalities.