ITT Engineered Valves
Dia-Flo Solenoid Valve
The Dia-Flo solenoid valve is the pilot that controls air supply to a Dia-Flo pneumatic actuator, switching the valve open or closed on an electrical signal. Three-way models serve spring-return actuators and four-way models serve double-acting ones.
Product Benefits
- Electrical control, simply: A pilot solenoid is the simplest way to put a pneumatically actuated valve under electrical control. One signal replaces manual air switching.
- Matched to the actuator: The range is matched to the Dia-Flo actuator families, with normally-closed and normally-open three-way models for fail-open and fail-close actuators.
- Four-way for double-acting: Double-acting units are served by four-way models from the same range.
- Last-position lock: Two three-way solenoids can be used in place of one four-way, so a double-acting actuator locks in its last position if pilot pressure is lost.
Where It's Used
- Almost every automated valve: Solenoid valves appear on virtually every automated on/off Dia-Flo installation.
- Panels and remote valves: Typical locations are batching panels, treatment plants and remote process valves driven from a PLC or control system.
- All actuator types: They pair with fail-open, fail-close and double-acting actuators alike.
Good to Know
- Selection follows the actuator: Three-way (3/2) models suit spring-return actuators, and four-way (4/2) models suit double-acting ones.
- Loss of pilot pressure: Where behavior on loss of pilot pressure matters, consider the dual three-way arrangement that holds a double-acting actuator in its last position.
- Proven industrial units: The solenoids offered are proven industrial products rather than special builds.
- Normally open or closed: The choice of normally-open versus normally-closed sets how the valve responds when the coil is de-energized.
