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Valves Basics

What are valves, key types, ASTM cast and forged materials, dimensions and weights

Types of Valves Used in the Oil & Gas Industry

Learn about the different types of valves used in the oil and gas industry and their differences: API and ASME gate, globe, check, ball, and butterfly designs (manual or actuated, with forged and cast bodies). Briefly said, valves are mechanical devices used in piping applications to control, regulate and open/close the fluid’ s flow and… read more »

Valve Parts (Body, Bonnet, Trim)

Which are the key parts of a valve? It is a complex mechanical device manufactured by assembling a number of different components: the body (the pressure containing shell, made of cast or forged steel, available with flanged, threaded or socket weld connection to pipes), the bonnet, the trim (the disc, the seat, the stem, and the… read more »

Valve Material Specifications (A216/351/352/105/182)

Learn about the key ASTM material specifications for valves. A cast valve body is manufactured by pouring liquid metals into molds and is common for valves above 2 inches in diameter. A forged valve body is produced by forging and machining solid steel. The key specifications for cast steel valves body materials are ASTM A216 (WCA, WCB, WCC),… read more »

Valve Face to Face Dimensions (ASME B16.10)

What is the face to face dimension of a flanged ball, globe or gate valve? The ASME B16.10 chart answers this question, as it standardizes the distance between the inlet and the outlet of the most common flanged valves. The purpose of this ASME specification is to ensure the interchangeability of valves produced by different manufacturers. … read more »

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