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Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. [1] " Nominal" refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe" consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside ...
The G4 class is the largest ConRO design in the world, slightly larger than the preceding 1980s-built G3 class but with significantly more cargo capacity. [2] They are 296 metres (971 ft) long, with a beam of 37.6 metres (123 ft) and a draft of 11.6 metres (38 ft), and have a gross tonnage of 100,430 GT, with a deadweight tonnage of 55, 649 DWT. [1]
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.
[37] [38] Buried PVC pipes in both water and sanitary sewer applications that are 100 mm (4 in) in diameter and larger are typically joined by means of a gasket-sealed joint. The most common type of gasket utilized in North America is a metal-reinforced elastomer, commonly referred to as a Rieber sealing system.
Commander, Carrier Strike Group FOUR (CCSG-4 or COMSTRKGRUFOUR) is the U.S. Fleet Forces Command formation charged with training and certifying Atlantic Fleet Carrier Strike Groups, Amphibious Ready Groups, and independently deploying surface ships. Its mission is to "Conduct safe and effective Strike Force Training of the Atlantic Fleet."
The adoption of the name Atlantic for the class and subsequently the 4-4-2 wheelbase arrangement itself derives from name of the railroad they were supplied to. [2] The advantages of the "Atlantic" type led to several other designs around the start of the twentieth century adopting the 4-4-2 wheelbase for express passenger work including the Milwaukee Road class A2, Pennsylvania Railroad class ...
While the wheel arrangement and type name Atlantic would come to fame in the fast passenger service competition between railroads in the United States by mid-1895, [1] the tank locomotive version of the 4-4-2 Atlantic type first made its appearance in the United Kingdom in 1880, when William Adams designed the 1 Class 4-4-2 T of the London, Tilbury and Southend Railway (LT&SR).
The Mark 3 Mod 0, M1890, would be the production version of the 4-inch/40 caliber bag gun with a total of 69 built in five Mods. The Mod 1 added a screw-box liner and chamber liner allowing it to use fixed ammunition along with only one hoop and a locking hoop and was hooped to within 52.5 in (1,330 mm) of the muzzle.