D927 Proportional Valve Offers Higher Flow Rates, Long Service Life for Less Cost

East Aurora, NY (November 1, 2023) – Moog Inc. (NYSE: MOG.A and MOG.B), has introduced the new D927 proportional valve to complete their Direct Operated Servo-Proportional valve line. The D927 is an ISO 4401 size 05 valve, built to complement the D926 size 03 valve introduced in April 2022. Like the D926 valve, the D927 is a direct-operated valve with integrated electronics driven by two proportional solenoids. Equipped with integrated microcontroller-based electronics, it offers closed-loop spool position control. The D927 valve is capable of flow rates up to 75 l/min at 10 bar (19.8 gpm at 150 psi). Together with the D926, this series is now capable of flow ranges of 4 to 75 l/min. The D927 thus perfectly completes the portfolio of directly operated proportional valves.

Product Overview

The D927 proportional valve is perfectly suited for highly dynamic tasks such as the control of position, speed, pressure and force in open and closed loop industrial applications. Customers will benefit from an exceptionally robust design that is particularly resistant to vibration and temperature. It is this robustness that sets this valve apart from its competitors. Furthermore, this valve includes several standard features, such as 4/3-way design with spring-centered failsafe position.

"With its higher flow rate, the D927 Proportional Valve Series complements our D926 Series Valves.” said Dr. Marco Wiegandt, Valve Development Manager for Moog. “We’ve designed the D927 to be rugged, withstand fluid temperatures up to 80° Celsius, and perform reliably under extreme vibration. These capabilities make the D926 and the D927 valves more than just a cost-effective replacement for competing products in this segment.”


The new D927 valve is ideal for applications with increased demands on control accuracy and precision, such as in plastics machinery, presses and wood industry. With its rugged design, this valve will also perform well in harsh ambient environments, such as heavy industry, metal forming and presses, or gas and steam turbines.  Use in highly dynamic applications such as test laboratories or test rigs is also within reach.

About Moog Inc.

Moog Inc. is a worldwide designer, manufacturer and integrator of precision control components and systems. Moog Industrial Controls segment designs and manufactures high performance motion control products, solutions and services combining electric, hydraulic, and hybrid technologies with expert consultative support in a range of applications in energy, industrial machinery, simulation and test markets. We help performance-driven companies to design and develop their next-generation equipment. Moog Industrial Controls segment, which had fiscal year 2022 sales of US $907 million and over 40 locations worldwide, is part of Moog Inc., which had fiscal year 2022 sales of US $3.2 billion. For more information, please visit www.moog.com