Frequently Asked Questions

How do 4-way valves control double-acting cylinders?

These valves feature four ports enabling complete directional control – pressure connects to one port while the opposite port drains to the tank. When energized, internal spool movement reverses these connections, extending or retracting the cylinder as needed for precise positioning.

The advantage of pilot-operated 4-way solenoid valves over direct-acting designs

Pilot-operated valves use system pressure to assist spool movement, reducing electrical power consumption while handling larger flow capacities. Direct-acting models respond faster and work in zero-pressure conditions but consume more electricity. Your application’s pressure and flow requirements determine the optimal choice.

When should I select aluminum vs. brass construction?

Aluminum provides significant weight reduction, essential in mobile applications like construction and agricultural equipment. Brass offers superior machinability and traditional reliability for stationary industrial systems. Both materials handle standard hydraulic pressures, though brass typically costs less for smaller valve sizes.

Which 4-way solenoid valve voltage options work best for different applications?

DC voltages (24V, 30V) are suitable for mobile equipment with battery-powered systems, providing faster response times. AC options (110V, 220V) work well in stationary industrial installations with consistent power supplies. 4-way valves with lower DC voltages reduce electrical interference in sensitive electronic control systems. 

How do 2-position configurations differ from 3-position configurations?

Two-position valves switch between extended and retracted positions only – ideal for simple on/off cylinder control. Three-position designs add a neutral center position for holding loads or allowing free cylinder movement. Most applications requiring precise positioning benefit from 3-position functionality.