The Z2FS16-30B/S2 Type Modular Restrictive Check Valve is a high-performance sandwich plate hydraulic flow control valve designed to restrict oil flow in one direction while allowing free flow in the opposite direction through an integrated check valve. Featuring a modular compact structure, the valve provides precise actuator speed control, stable hydraulic performance, and flexible installation in hydraulic manifold systems. It is widely used in industrial hydraulic equipment, hydraulic power units, construction machinery, and automation systems.

Working Principle

The Z2FS16-30B/S2 modular restrictive check valve consists of two symmetrically arranged throttle/check valve assemblies. Hydraulic oil is throttled in one direction through adjustable throttle spools to control actuator speed, while the integrated check valves allow free flow in the opposite direction with minimal resistance.

The “S2” version indicates:

• Meter-out flow control
• Outlet throttling configuration
• Suitable for stable load control and motion damping applications

The sandwich plate structure allows direct installation between directional valves and subplates without additional piping, simplifying hydraulic system design and reducing leakage points.

Applications

The Z2FS16-30B/S2 modular restrictive check valve is widely used in:

• Hydraulic power units
• Industrial automation systems
• Construction machinery
• Hydraulic presses
• Injection molding machines
• Machine tools
• Agricultural machinery
• Mobile hydraulic equipment