Description
Product introduction
The MOOG D656-002F-5 is an advanced electro-hydraulic proportional control valve that combines both flow (Q) and pressure (P) control in a single compact unit. As part of MOOG’s D656 “PQ” series, this valve integrates spool-position feedback, pressure transducer, and onboard electronics into one module, enabling precise closed-loop control of hydraulic systems. With its combined p/Q functionality, the D656-002F-5 is engineered for applications where both flow and pressure must be finely regulated and dynamically managed.
This model is positioned for demanding industrial control environments where efficient, accurate hydraulic actuation is required. The D656-002F-5 connects analog command signals (such as ±10 V or 4-20 mA) from PLCs or motion controllers and translates them into hydraulic output commanding both flow and/or pressure as needed. By integrating feedback and electronics, the valve reduces system complexity and improves responsiveness compared to conventional separate valve and pilot families.
In modern automation systems, the D656-002F-5 serves as a key element in hydraulic control loops—whether in manufacturing, press machinery, test rigs or metal forming. Its advanced architecture enables system integrators to simplify hydraulic schematics, reduce component count, and deliver enhanced dynamic performance. With MOOG’s reputation for precision hydraulics behind it, the D656-002F-5 offers a credible solution for controlling force, speed, or position in fluid-power driven systems.
Typical application scenarios
The D656-002F-5 is ideal for industrial automation settings where both hydraulic flow and pressure need to be dynamically controlled in real time. In metal forming equipment such as presses or stamping machines, the valve can regulate the speed of an actuator (via flow control) and simultaneously limit or manage force through pressure control — enabling high-precision forming cycles. In plastics injection moulding systems, it can control injection flow rate and clamp pressure within a consolidated hydraulic element.
In test rigs for aerospace or automotive components, the D656-002F-5 offers fine control of actuator movement and force during fatigue, vibration or structural tests. Its compact design and integrated electronics make it suitable for retrofit upgrades of older systems — replacing older separate valve and pressure-control modules to achieve better performance, fewer leaks and more automation-friendly control.
In mobile or marine hydraulics where centralized control and compact cabinets are critical, the D656-002F-5 can serve as a control core in a unitized hydraulic manifold controlling several actuators. Its combined function reduces plumbing, piping and control system overhead, making it attractive in space- and weight-sensitive installations.
In all these scenarios, the value of the D656-002F-5 lies in its ability to provide precise hydraulic motion control with fewer components, reduced maintenance, and improved loop performance — aligning with modern automation goals of high throughput, high accuracy and minimal downtime.
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