Valve Design & Operation

VERSA's Anti-Extrusion design enhances seal reliability. It positions O-rings so system pressure seats them in place, minimizing extrusion risk and prolonging seal life.

Pilot or solenoid-pilot valves require sufficient force to overcome opposing elements like springs. This force (F) is calculated as Pressure (P) x Area (A). Minimum pilot pressure is the lowest pressure needed to achieve this.

Solenoid Pilot: Uses an electric solenoid to control pilot flow, which shifts the main valve. Advantages include high flow, reliability, and low power usage. Requires minimum pressure. Direct Acting Solenoid: The solenoid directly shifts the valve using magnetic force. Benefits include operation without minimum pressure, though with lower flow and higher power use.

Expilot refers to a solenoid-pilot valve that uses an external pilot pressure source. Ideal for applications where internal media pressure is insufficient or where pilot media must differ from main media.

Direct acting valves include all products in the E Family (E, E3, E4, E5, and EZ Series) and the D-316 Series.

To meet diverse application needs—ranging from pilot signal control to high-flow spool valves—VERSA provides a variety of 316 stainless steel options, including safety and logic functions.