Actuator operated control valves

Our product range covers a wide selection of 2-way and 3-way control valves for different applications. 2-way valves are available either with linear or equal percentage control characteristic. 3-way valves can be used for either mixing or distribution applications. They are available with an inbuilt, adjustable minimum rotational speed, to be used, for example, as boiler feed water valves.

We will dimension the valves with the help of the ARI VASI dimensioning software. In this case, we will check the adequacy of the valve capacity, make sure that the valve is not over-dimensioned and check the flow rates inside of the valve as well as the noise level caused by the pressure adjustment. It is possible to fit the ARI valves with different perforated cones that reduce, for example, the noise level of the valve remarkably. In 470 series valves, the seat and the cone can also be replaced afterwards. In this case, the kvs-value of the valve can be modified according to the changed process conditions.

Case-specific actuator

Valves can be equipped with pneumatic or electric actuators.

A pneumatic actuator is fast and less vibration sensitive than, for example, an electrical actuator. In our seat type valves we use the factory’s own actuators, so we are able to dimension a correctly sized actuator for each valve type.

We can deliver electrical actuators for different voltages made by valve manufacturers themselves or by other manufacturers such as AUMA, BERNARD or ROTORK.

ARI’s own PREMIO actuator has been dimensioned so that the force produced by the actuator corresponds precisely to the force required by the ARI valve. This will give clear price advantage.

A safety device is available for electrical actuators that will close the valve during power failure.

Position transmitters and limit switches are available as optional extras.