The development of pipeline valves

I. Preface



In 1914, the first 9 kilometers long oil pipeline built in the central United States, from the opening prelude to industrial development pipeline. By pipeline for the transmission of liquid or gas, the cost of rail transport is 1 / 3, the sea transport of 2 / 3, so the last one hundred years to obtain a rapid development. Described as long-distance pipelines of long-distance pipeline, the use of long-distance pipeline valve called a pipeline valve, a ball valve, gate valve, check valve, plug valves, is a pipeline transportation to meet the special requirements of have dedicated special function valves. Ball said that the pipeline of the ball valve. Pipeline ball valve specification is the technical standards issued by the American Petroleum Institute API specification 6D "oil and natural gas industries - Pipeline transportation - pipeline valves", the latest version in January 2000 edition of the enactment of section 22, and in 1999 issued international standards ISO14313 - 1999.

In fact the rapid development of pipeline industry is the fifties of the twentieth century, and under the "Pipeline" magazine in 2000 statistics, the world's pipelines have been completed and 2.6 million kilometers, of which 800,000 kilometers pipeline, 1.4 million kilometers pipelines, other petrochemical products pipelines 400,000 kilometers. Oil pipelines is an energy supply line, is a lifeline, has been around the world, and still 30,000 kilometers per year annually. The maximum pipeline pressure level valve PN42.0Mpa (Class2500), Valve's largest 60-inch diameter (DN1500).

The world famous long-distance pipelines such as the United States east coast of Alaska to the Atlantic Ocean crude oil pipeline in Long Island, across the Arctic permafrost and the United States, the marshes of the Great Lakes; the Russian Trans-Siberian oil pipeline; the Mediterranean from Algeria to Spain via Morocco the gas line, a total length of 2,000 km, across the desert, the Atlas Mountains and the Strait of Gibraltar; in Southeast Asia from the Philippines via Malaysia, Java, Sumatra, Thailand, a total length of 6276 kilometers to the gas line, in which 1094 kilometers submarine gas line, and so on.

The structure of ball valve can be traced back to 1904, the structure has been applied for the patent, but has not been commercialized, it is also the 20th century, the development of the 50's thing, this is the United States in 1943 as a result of DuPont invented Teflon plastic This material has a certain degree of flexibility, self-lubricating, and excellent corrosion resistance, very suitable for the sealing materials as valves. As well as the cars ball machine, ball machine progress. As a result of this is the path valve, low flow resistance, is suitable for use as a long-distance pipeline valves, pipeline ball valve so the pipeline has been gradually replacing the valve, plug valves, is a kind of the last 50 years one of the fastest growing valve new varieties. valve ball valve gate valve check valve globe valve butterfly valve
We can offer more Knife Gate Valve Information.If you need us according your spcification to produce the Knife Gate Valve .
Need, please e-mail to valve401@gmail.com