How does a modulating damper work?
How does a modulating damper work?
A modulating actuator will position, or throttle, the damper or valve as commanded by the controller to achieve a desired position or flow. An open/close, or on/off, control signal produces a two-position response (0% open or 100% open) for the damper or valve; usually with 24 VAC to 230 VAC contacts.
What is a 3-way valve used for?
Three-way ball valves are especially useful because they can be set up in ways that simplify the control of gas and fluid flow. For example, they can be used to divert the flow of oil from one tank to another.
Which is steam modulating valve do you use?
These valves provide excellent modulating control for pressure, temperature, level, and flow of a wide variety of fluids in from -20° to 800°F. GVI Valves are effective for the control of liquids, Description: STERI-TROL ‘S’ series are two-port and three-port control valves manufactured using 316L stainless steel.
How are steam control valves used in heat transfer?
Before discussing the sizing of control valves for steam systems, it is useful to review the characteristics of steam in a heat transfer application. Steam is supplied at a specific pressure to the upstream side of the control valve through which it passes to a heat exchanger, also operating at a specific pressure.
What are the different types of steam valves?
Our offering of steam valves includes fast acting, high-cycle life, on/off valves, electric and pneumatically actuated modulating steam control valves, 2 & 3-way ball valves, and butterfly valves. Some of the common steam valve applications are:
How are sterlco self modulating temperature control valves used?
Sterlco ® self-modulating temperature control valves are temperature actuated, self-powered, fully balanced, and applicable to heating or cooling processes using water, oil, steam or other fluids. Sterlco ® equipment serves applications from basic radiator systems with minimal control requirements to the most demanding operations.