Directional control valves perform three functions: stopping, allowing, and changing the direction of fluid flow. Although international standards describe a valve by its number of ports, it is common in North America to use the term ways, so a 4-way valve is a valve having four ports. Double-acting actuators require 4-way valves because they pressurize and exhaust two pairs of ports independently. Both hydraulic and pneumatic circuits use them, but a 3-position, 4-way valve is more common in
Register to view the full article
Register for full access. By registering for Hydraulics & Pneumatics now, you'll not only gain access to premium content, you'll also become part of an exclusive, robust global community!
Participate in Expert and Reader driven Q&A's
Start your own conversation by commenting on any article or blog
Download high-quality content including the highly anticipated Salary & Career Report