Different types of valves used in Oil & Gas Industry
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VALVES BY BODY MATERIAL CAST (the body is obtained by casting steel). The main casting materials for valves are listed in this article. FORGED (the body is manufactured by forging steel) VALVES BY TYPE OF ACTUATION MANUAL: the valve is operated manually, via levers, wheels or gears; ACTUATED: the valve is actioned via electromechanical devices, called actuators, that may be electric, pneumatic, hydraulic & gas over oil VALVE BY DESIGN GATE VALVE: This type is the most used in piping & pipeline applications. Gate valves are linear motion devices used open & close the flow of the fluid (shutoff valve). Gate valves cannot be used for throttling applications, i.e. to regulate the flow of the fluid (globe or ball valves should be used in this case). A gate valve is, therefore, either fully opened or closed (by manual wheels, gears or electric, pneumatic & hydraulic actuators) GLOBE VALVE:...