Piloted regulators - Advantages,Disadvantages and Application

Piloted regulators Before reading it would be better to understand about Pressure regulators Set point determined by pilot (a direct acting regulator) that control the flow to or from the diaphragm of a larger valve May have minimum differential pressure requirement . Larger line sizes for higher flows Very accurate Higher turndown ratios Requires minimum differential pressure and downstream sensing tap

Advantages of Piloted Regulators

More accurate Less drop More sensitive - Small change in pilot = large change in main valve Higher range ability

Disadvantages of piloted regulators

More sensitive - Can create oscillations with in a system Not good for rapidly changing system Requires minimum pressure drop to operate (typically 15-25 psi)