The Z2FS6 series twin throttle check valve (models: Z2FS6-2-44/2Q, Z2FS6-2-4X/2Q, order number: R900481622) is a high-performance hydraulic flow control component of the Z2FS full series, specially engineered for precise throttling, one-way check and flow speed regulation in industrial hydraulic circuits. As a core auxiliary control valve for hydraulic systems, it is widely applied to engineering machinery, machine tools, metallurgical equipment, plastic machinery and hydraulic power units, with perfect compatibility for mainstream hydraulic system connection standards. The Z2FS full series covers Z2FS6, Z2FS10, Z2FS16 and Z2FS22 models, which can be flexibly matched with hydraulic circuits of different flow specifications, meeting the diverse flow control needs of industrial equipment.
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Integrated Twin Throttle & Check Design This valve integrates dual functions of
throttle speed regulation and
one-way check in a compact structure, eliminating the need for separate installation of throttle valves and check valves, effectively saving hydraulic station layout space and reducing pipeline connection complexity. The one-way check function prevents hydraulic oil backflow, avoiding system pressure shock and ensuring stable operation of the hydraulic circuit.
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High-Precision Flow Regulation Adopting precision-machined throttle spool and matching valve core, the Z2FS6 series realizes stepless and fine flow regulation, with stable throttling performance and no obvious flow fluctuation under different pressure conditions. It can accurately control the movement speed of hydraulic actuators (cylinders, motors), improving the operation precision and stability of the whole equipment.
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Reliable Sealing & Pressure Resistance Equipped with high-quality sealing components and optimized valve body structure, the valve has excellent sealing performance and high pressure-bearing capacity, realizing zero leakage under the rated working pressure of the hydraulic system. The valve body is made of high-strength cast iron with high machining precision, which can withstand long-term hydraulic impact and adapt to the continuous working conditions of industrial sites.
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Standardized Connection & Easy Installation Following the international standard hydraulic valve connection specification, the Z2FS6 series adopts a compact cartridge and plate connection structure, with unified installation interface dimensions. It can be directly installed on the hydraulic manifold block or integrated into the hydraulic pipeline, with simple assembly and disassembly. No complex adjustment is needed after installation, which shortens the equipment commissioning cycle.
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Wide Adaptability & Long Service Life The internal components of the valve are made of wear-resistant and corrosion-resistant alloy materials, with low friction coefficient and strong anti-fatigue performance, which can maintain stable working performance under long-term high-frequency operation. It is adaptable to a wide range of hydraulic oil viscosity and working temperature, and can operate normally in the harsh industrial environment with large temperature changes and slight oil pollution.
The Z2FS twin throttle check valve full series includes Z2FS6, Z2FS10, Z2FS16 and Z2FS22 four core models, which are designed for hydraulic circuits with nominal flow from small to medium and large specifications. All models adopt the same standardized design concept and functional principle, with consistent installation and operation methods, and can be quickly replaced and interchanged according to the actual flow demand of the hydraulic system. The full series products can provide a one-stop flow control solution for industrial hydraulic systems, realizing the standardization and integration of hydraulic auxiliary control components.
The Z2FS6 series and its full series products are essential flow control valves for industrial hydraulic systems, and are widely used in various fields that require precise speed regulation and one-way anti-backflow of hydraulic actuators: engineering machinery (excavators, loaders, cranes), metal cutting machine tools, hydraulic press equipment, plastic injection molding machines, metallurgical smelting equipment, conveyor machinery and hydraulic lifting systems. It can effectively improve the operation accuracy, response speed and working stability of hydraulic equipment, reduce system energy consumption and failure rate, and extend the service life of the whole hydraulic system.
Type Code:
| 01 | 02 | 03 | 04 |
| 05 |
| 06 | 07 | 08 | 09 |
| Z2FS | 6 |
|
| – | 4X | / |
|
|
| * |
| 01 | Twin throttle check valve, sandwich plate design | Z2FS |
| 02 | Size 6 | 6 |
| 03 | Throttle check valve side A and B | –1) |
| Throttle check valve side A | A |
| Throttle check valve side B | B |
| Adjustment type |
| 04 | Setscrew with lock nut and protective cap | 2 |
| Lockable rotary knob with scale | 32) |
| Spindle with internal hexagon and scale | 5 |
| Rotary knob with scale | 7 |
| 05 | Component series 40 … 49 (40 … 49: unchanged installation and mounting dimensions) | 4X |
| 06 | With fine adjustment | 1Q |
| Standard version | 2Q |
| Seal material |
| 07 | NBR seals | no code |
| FKM seals | V |
| Observe compatibility of seals with hydraulic fluid used. (Other seals upon request) |
| 08 |
| no code |
| With loSAARing hole | /603) |
| 09 | Further details in the plain text | * |
More models：
| R900441377 | Z2FS6A2-4X/1Q |
| R900548876 | Z2FS6A2-4X/1QSO700 |
| R900931733 | Z2FS6A2-4X/1QJ |
| R901435985 | Z2FS6A2-4X/1QJ3/60 |
| R901435990 | Z2FS6A2-4X/1QJ3V/60 |
| R901435987 | Z2FS6A2-4X/1QJ5/60 |
| R901435994 | Z2FS6A2-4X/1QJ5V/60 |
| R900509872 | Z2FS6A2-4X/1QJV |
| R900581526 | Z2FS6A2-4X/1QV |
| R900427254 | Z2FS6A2-4X/2Q |
| R901436013 | Z2FS6A2-4X/2QJ3/60 |
| R901436015 | Z2FS6A2-4X/2QJ3V/60 |
| R901436014 | Z2FS6A2-4X/2QJ5/60 |
| R901436016 | Z2FS6A2-4X/2QJ5V/60 |
| R900595235 | Z2FS6A2-4X/2QJV |
| R900439389 | Z2FS6A2-4X/2QV |
| R901228007 | Z2FS6A2-4X/2QV/60 |
| R900558981 | Z2FS6A2-4X/2QV=LB |
| R900466450 | Z2FS6A3-4X/1Q |
| R900507951 | Z2FS6A3-4X/1QV |
| R900502066 | Z2FS6A3-4X/2QV |
| R900532275 | Z2FS6A5-4X/1QV |
| R901443836 | Z2FS6A5-4X/2Q |
| R900591603 | Z2FS6A5-4X/2QV |
| R900710037 | Z2FS6A7-4X/1Q |
| R900584700 | Z2FS6A7-4X/1QV |
| R900967913 | Z2FS6A7-4X/2Q |
| R900451197 | Z2FS6A7-4X/2QV |
| R900464382 | Z2FS6B2-4X/1Q |
| R901436017 | Z2FS6B2-4X/1QJ3/60 |
| R901436019 | Z2FS6B2-4X/1QJ3V/60 |
| R901436018 | Z2FS6B2-4X/1QJ5/60 |
| R901436020 | Z2FS6B2-4X/1QJ5V/60 |
| R900438760 | Z2FS6B2-4X/1QV |
| R900423224 | Z2FS6B2-4X/2Q |
| R900740175 | Z2FS6B2-4X/2QJ |
| R901436021 | Z2FS6B2-4X/2QJ3/60 |
| R901436025 | Z2FS6B2-4X/2QJ3V/60 |
| R901436022 | Z2FS6B2-4X/2QJ5/60 |
| R901436026 | Z2FS6B2-4X/2QJ5V/60 |
| R900579751 | Z2FS6B2-4X/2QJV |
| R900440565 | Z2FS6B2-4X/2QV |
| R900574150 | Z2FS6B3-4X/1Q |
| R900584417 | Z2FS6B3-4X/1QV |
| R900582339 | Z2FS6B3-4X/2QV |
| R900595113 | Z2FS6B5-4X/1QV |
| R900595709 | Z2FS6B5-4X/2QV |
| R900596996 | Z2FS6B7-4X/1Q |
| R900560493 | Z2FS6B7-4X/1QV |
| R900967839 | Z2FS6B7-4X/2Q |
| R900465879 | Z2FS6B7-4X/2QV |
| R900481621 | Z2FS6-2-4X/1Q |
| R900416482 | Z2FS6-2-4X/1QJ |
| R901435770 | Z2FS6-2-4X/1QJ3/60 |
| R901435773 | Z2FS6-2-4X/1QJ3V/60 |
| R901435948 | Z2FS6-2-4X/1QJ5/60 |
| R901435951 | Z2FS6-2-4X/1QJ5V/60 |
| R900405544 | Z2FS6-2-4X/1QJV |
| R900481623 | Z2FS6-2-4X/1QV |
| R900481622 | Z2FS6-2-4X/2Q |
| R901454394 | Z2FS6-2-4X/2Q/60 |
| R900901959 | Z2FS6-2-4X/2QJ |
| R901435955 | Z2FS6-2-4X/2QJ3/60 |
| R901435983 | Z2FS6-2-4X/2QJ3V/60 |
| R901435982 | Z2FS6-2-4X/2QJ5/60 |
| R901435984 | Z2FS6-2-4X/2QJ5V/60 |
| R900444252 | Z2FS6-2-4X/2QJV |
| R900481624 | Z2FS6-2-4X/2QV |
| R900727967 | Z2FS6-2-4X/2QV/60 |
| R901110659 | Z2FS6-2-4X/2QV/62 |
| R900441679 | Z2FS6-2-4X/SO61 |
| R900371788 | Z2FS6-2-4X/VSO61 |
| R900576460 | Z2FS6-2-4X=2Q |
| R900426752 | Z2FS6-3-4X/1Q |
| R900586224 | Z2FS6-3-4X/1QV |
| R900434395 | Z2FS6-3-4X/2Q |
| R900455714 | Z2FS6-3-4X/2QV |
| R901418009 | Z2FS6-3-4X/2QV/60 |
| R900422430 | Z2FS6-4X/V |
| R900511143 | Z2FS6-5-4X/1Q |
| R900582719 | Z2FS6-5-4X/1QV |
| R901438380 | Z2FS6-5-4X/1QV/60 |
| R900505004 | Z2FS6-5-4X/2Q |
| R900476838 | Z2FS6-5-4X/2QV |
| R900438820 | Z2FS6-7-4X/1Q |
| R900581165 | Z2FS6-7-4X/1QV |
| R900442662 | Z2FS6-7-4X/2Q |
| R900441810 | Z2FS6-7-4X/2QV
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