Features And Benefits - Moog D680 Series Manual

introduction introduction

Features and BeneFits

Features and BeneFits
Features
d680 series Proportional control valves
a 2-stage valve design combining a dynamic pilot stage,
flow-optimized main stage and integrated electronics
valve housing optimized for high rated flow
versions with stub-shaft spool are available for the d683
and d684 series, requiring reduced flow to move the spool
than standard options
integrated fail-safe versions available with defined safe
spool position
pilot stage can handle full system pressure of 350 bar
(5,000 psi)
dual gain and curvilinear spool options also available;
user accessible electrical null adjust potentiometer
special versions available with a hardened valve housing
to reduce wear, decoupled electronics for high shock and
vibration environments, and ability to use special fluids
direct drive Pilot valve
direct drive pilot valves have a low internal pilot leakage
flow
dynamics of direct drive valve is nearly independent of
operating pressure
excellent dynamics due to high frequency response
rev. c, april 2017 rev. c, april 2017
moog d680 series proportional control valves moog d680 series proportional control valves
Benefits
cost-effective, high-performance valve that provides
reliable control in many demanding applications
ensures maximum flow for the given nominal size, offering
more energy efficiency and optimized system sizing
improves dynamic response and achieves performance
characteristics comparable to 3-stage valves
integrated fail-safe options minimize need for additional
components and provide enhanced user safety, lower
costs and reduced machine complexity
eliminates need for additional components to reduce pilot
pressure, saving cost and complexity
tune your system and obtain better resolution for many
machine applications
ideal for machines used in demanding environments,
increases uptime, extends the life of valve and reduces
repair costs
lower pilot stage leakage reduces system losses,
improves efficiency and saves energy, especially for
systems with multiple valves
provides high dynamics even in systems with low pilot
pressure
ideal for high performance applications requiring higher
acceleration, high accuracy and enhanced productivity
4 4