Z4WECE68-21/AG24NZ4

The Z4WECE68-21/AG24NZ4 directional spool valve is produced by Bosch Rexroth within the WE Directional Spool Valves series. It channels hydraulic flow to actuators and ensures controlled on-off switching in automation circuits. The valve uses size 6 cavities to fit compact manifolds while maintaining adequate passage area for medium flow applications. A mounting interface defined by ISO 4401-03-02-0-05 (D03) allows direct installation on standard subplates, reducing assembly work. The unit withstands operating pressures up to 350 bar in ports P, A, and B so it can be placed in high-pressure supply lines. Its design supports a flow of 80 l/min under direct current operation, providing sufficient volume for cylinders and motors in small presses or tooling fixtures. Tank port T may be subjected to 210 bar, which permits back-pressure circuits without external reliefs. An energized coil runs on 24 V DC and draws 1.25 A, letting common machine power supplies activate the spool. Voltage can deviate by ±10 % without affecting performance, giving tolerance against battery or supply fluctuations.

Continuous duty in industrial cycles is supported by a 100 % ED rating, meaning the solenoid may remain energized indefinitely without thermal damage. Insulation class F materials insulate the windings for this service and collaborate with a 120 °C maximum coil surface temperature limit to prevent breakdown during elevated ambient conditions. The valve switches up to 4.2 times per second in direct current mode, enabling rapid response when sequence speed is critical. A nominal power consumption of 30 W simplifies sizing of control transformers and reduces cabinet heat load. Environmental sealing meets IP65, so dust ingress and water jets are resisted when the connector is properly fitted. Any installation position is permitted, giving designers freedom to orient the manifold horizontally or vertically. Hydraulic cleanliness should not exceed ISO 4406 20/18/15 to avoid spool sticking and wear.