API Cast steel fixed ball valve

API Cast steel fixed ball valve

A API cast steel fixed valve utilizes forge steel, and can meet the valve standards from API - the American Petroleum Institute. The American Petroleum Institute, commonly referred to as API, is the main U.S trade association for the oil and natural gas industry, representing about 400 corporations involved in production, refinement, distribution. The publications, technical standards, and electronic and online products are designed to help users improve the efficiency and cost-effectiveness of their operations, comply with legislative and regulatory requirements, and safeguard health, ensure safety, and protect the environment. Each publication is overseen by a committee of leading industry professionals. API's publications are developed by member company engineers and other professionals. API definate a varity of standards, among them API SPEC 6D is definated for the ball valve.

A API cast steel fixed valve is ball valve that uses cast steel material. It takes the advantage of the structures of  both ball valve and the properties of its material. Steel is an alloy of iron and carbon. It is produced in a two-stage process. First, iron ore is reduced or smelted with coke and limestone in a blast furnace, producing molten iron which is either cast into pig iron or carried to the next stage as molten iron. In the second stage, known as steelmaking, impurities are removed and alloying elements such as manganese, nickel, chromium and vanadium are added to produce the exact steel required. Steel then turn molten steel into blooms, ingots, slabs and sheet through casting, hot rolling and cold rolling.