Rexroth Z2FS6‑30B Sandwich Stack Valve
Product Overview
The Rexroth Z2FS6‑30B is a compact double throttle‑check Hydraulic valve with sandwich stack structure, acting as a precise flow control component in industrial and mobile hydraulic system. This stacked Hydraulic valve integrates two independent throttle‑check units, which can separately adjust the inflow and outflow flow of hydraulic cylinders and motors, accurately stabilize the movement speed of actuators, and avoid hydraulic impact and unstable action of the Machine. Adopting NG6 (CETOP 03) standard sandwich mounting dimension, it can be directly installed between directional valve and manifold block, simplifying pipeline layout, reducing leakage points and optimizing the space arrangement of small‑size hydraulic equipment. With adjustable lockable throttle knobs and precision‑matched internal spool, it realizes stable meter‑in or meter‑out speed regulation, greatly improving the motion smoothness and operation safety of the whole hydraulic system. It is widely applied for OEM assembly, routine maintenance and spare‑parts replacement of small construction machinery, injection molding machines, automation equipment and hydraulic presses.
Technical Specifications
‑ Model: Z2FS6‑30B
‑ Brand: Rexroth
‑ Product Type: Double throttle check Hydraulic valve, sandwich stack flow control valve
‑ Nominal size: NG6 / Cetop 03, compliant with ISO 4401 standard
‑ Maximum working pressure: 315 bar
‑ Rated maximum flow: 80 L/min
‑ Mounting mode: Sandwich stacked installation, matched with standard directional valve manifold
‑ Working medium: Anti‑wear hydraulic oil for mobile and industrial hydraulic system
‑ Operating temperature: -30℃ ~ +80℃ (NBR seals); -20℃ ~ +80℃ (FKM seals)
‑ Feature: Independent dual‑path flow adjustment, reversible free return flow, low pressure loss, compact structure, strong interchangeability, suitable for long‑term frequent speed regulation of small hydraulic Machine.
Working Principle
Pressure oil from the hydraulic system enters the two working ports of the Hydraulic valve. In the forward direction, the adjustable throttle orifice limits the oil flow to control the speed of the executive component; in the reverse direction, the built‑in check valve opens completely, allowing oil to return freely without throttling loss. The lockable adjusting knob can precisely set the opening of the throttle port to match the speed requirement of the Machine. By changing the installation orientation, the valve can switch between inlet throttling and outlet throttling to adapt to different circuit control demands. When the throttle spool is worn or the sealing ring fails, it will cause flow deviation, unstable speed and hydraulic impact of the equipment. Replacing a genuine Z2FS6‑30B can restore accurate flow regulation function and keep the hydraulic system running smoothly.
Core Advantages
1. Authentic Rexroth hydraulic manufacturing quality, stable pressure resistance and flow control accuracy, effectively optimizing the motion stability of the hydraulic system.
2. Miniature sandwich integrated design saves installation space, reduces external oil pipes and leakage risks, and optimizes the overall layout of the Machine.
3. Dual independent throttle channels realize separate speed control for two actuators, flexible to meet various working condition requirements of small hydraulic equipment.
4. Optimized internal flow channel minimizes pressure drop, reduces energy consumption and oil temperature rise, and prolongs the service life of the Hydraulic valve.
5. Standard NG6 universal interface, fully compatible with mainstream small‑size hydraulic valve groups, direct replacement without modifying original manifold plates, convenient for on‑site maintenance.
Application Range
Z2FS6‑30B double throttle check Hydraulic valve is an essential flow control element for hydraulic circuits. It is widely applied to small construction machinery, injection molding machines, bending machines, aerial work platforms, automated production lines and other hydraulic‑driven Machine. Suitable for equipment manufacturers, hydraulic system maintenance workshops and global spare‑parts suppliers for routine maintenance, system upgrading and component replacement.
