Regulators are used for gases and liquids, and can be an integral device with an output pressure setting, a restrictor and a sensor all in the one body, or consist of a separate pressure sensor, controller and flow valve. Pressure regulator is a control valve that reduces the input pressure of a fluid to a desired value at its output. This enables the direct control of flow rate and the consequential control of process quantities such as pressure, temperature, and liquid level. Control Valves & Regulators A control valve is a valve used to control fluid flow by varying the size of the flow passage as directed by a signal from a controller.High Performance Triple Offset Butterfly Valve.High Performance Double Offset Butterfly Valve.Unlike a ball valve, the disc is always present within the flow, so a pressure drop is always induced in the flow, regardless of valve position. Rotating the actuator turns the disc either parallel or perpendicular to the flow. The disc is positioned in the centre of the pipe passing through the disc is a rod connected to an actuator on the outside of the valve. Butterfly valves are generally favoured because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required. Operation is similar to that of a ball valve, which allows for quick shut off. The closing mechanism takes the form of a disk. Butterfly Valves A butterfly valve is a valve which can be used for isolating or regulating flow.These qualities make them an excellent choice for shutoff and control applications, where they are often preferred to gates and globe valves. Ball valves are durable, performing well after many cycles, and reliable, closing securely even after long periods of disuse. The handle lies flat in alignment with the flow when open, and is perpendicular to it when closed, making for easy visual confirmation of the valveвЂ™s status. It is open when the ballвЂ™s hole is in line with the flow and closed when it is pivoted 90-degrees by the valve handle. Ball Valves A ball valve is a form of quarter-turn valve which uses a hollow, perforated and pivoting ball to control flow through it.When the control signal is received, the actuator responds by converting the energy into mechanical motion. The supplied main energy source may be electric current, hydraulic fluid pressure, or pneumatic pressure. The control signal is relatively low energy and may be electric voltage or current, pneumatic or hydraulic pressure. It requires a control signal and a source of energy. Actuators & Accessories An actuator is a component of a machine that is responsible for moving or controlling a mechanism or system.

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