Globe Valve: A valve with a linear motion closure member, one or more ports, and a body distinguished by a globular shaped cavity around the port region. Globe valves can be further classified as: two-way single-ported; two-way double-ported; angle-style ; three-way ; unbalanced cage-guided ; and balance cage-guided. Lower Valve Body: A half housing for internal valve [...]
Actuator Spring: A spring, or group of springs, enclosed in the yoke or actuator casing that moves the actuator stem in a direction opposite to that created by diaphragm pressure. Actuator Stem: The part that connects the actuator to the valve stem and transmits motion (force) from the actuator to the valve. Actuator Stem Extension: [...]
Process plants consist of hundreds, or even thousands, of control loops all networked together to produce a product to be offered for sale. Each of these control loops is designed to keep some important process variable such as pressure, flow, level, temperature, etc. within a required operating range to ensure the quality of the end product. [...]