The EDP300 digital positioner feature a high air capacity of 50 kg/h

(23 scfm) at 10 bar (145 psi) and is equipped with advanced

pressure-based diagnostic functions.

Why are they used?

Compliance to environmental regulations

In any production process, it is critical to ensure

stable and constant process conditions to

achieve optimum product quality and process

efficiency. Any control equipment must be capa

ble of eliminating any variations in the process

variables that could cause the process to consume

both more energy and consumables than normal,

pushing up production costs. The stability of the

downstream control loop may also be affected,

impacting on both product quantity and quality.

With the compressed air used by valve posi

tioners being around ten times more expensive

than electricity, accurate control is essential to

minimizing plant overheads as well as eliminating

potential problems in the downstream process.