Bosch Rexroth Z2FS6-2-4X/1QV throttle check valve

Z2FS6-2-4X/1QV is a manually adjustable sandwich throttle check valve for flow control in working line A and B. Its check-valve path permits reverse flow, while the adjustable restriction meters flow in the selected direction. The ISO 4401-03-02-0-05 interface is intended for a valve stack; the article uses FKM seals and set screw with locknut adjustment.

The published pressure and flow limits are ceilings, not an assurance that both may be reached simultaneously. Selection and installation must follow the applicable performance curves, hydraulic-fluid restrictions, mounting requirements and seal-specific operating conditions.