Which 4/3-way valve configuration includes a hand lever actuated with a recirculating mid position?

Which 4/3-way valve configuration includes a hand lever actuated with a recirculating mid position?

• A. 4/3-way directional control valve, hand lever actuated with recirculating mid position
• B. 4/2-way directional valve, solenoid actuated
• C. 4/3-way directional control valve, double solenoid actuated
• D. 4/3-way valve with fixed mid position

Answer: (A)

The key idea is a four-port, three-position valve that is operated by a hand lever and has a center position that recirculates the fluid. A 4/3 valve offers P and T ports for supply and return and A and B to the actuator, with a center position that can be configured to recirculate flow inside the valve rather than sending it to the actuator. A hand lever provides manual control, so you can position the valve yourself and have a neutral center that keeps the actuator ports isolated while circulating fluid back through the loop. This combination is exactly what is described by a hand-lever actuated 4/3-way valve with a recirculating mid position. Other options either use a different actuation method (solenoid or double solenoid), a different valve count (4/2), or a fixed center that does not provide the recirculating behavior, so they don’t match the specified configuration.

The key idea is a four-port, three-position valve that is operated by a hand lever and has a center position that recirculates the fluid. A 4/3 valve offers P and T ports for supply and return and A and B to the actuator, with a center position that can be configured to recirculate flow inside the valve rather than sending it to the actuator. A hand lever provides manual control, so you can position the valve yourself and have a neutral center that keeps the actuator ports isolated while circulating fluid back through the loop. This combination is exactly what is described by a hand-lever actuated 4/3-way valve with a recirculating mid position. Other options either use a different actuation method (solenoid or double solenoid), a different valve count (4/2), or a fixed center that does not provide the recirculating behavior, so they don’t match the specified configuration.