Product Overview
The HUADE Z2FS22-30B/S2 is a dual-throttle check valve (also referred to as a twin throttle and rectifier check valve) from the Huade Z2FS series, designed for precise flow control in industrial hydraulic systems. This sandwich-style modular valve is mounted between a directional control valve and its subplate, regulating the flow rate in both the supply and return lines of an actuator circuit. Each flow path incorporates an adjustable throttle (needle) and a rectifier check valve, allowing independent metering of flow in each direction while ensuring stable, repeatable actuator speeds. The Z2FS22-30B/S2 is a Size 22 (NG22 / CETOP 10) unit with a spring-loaded, pressure-compensated throttle design, making it a reliable choice for demanding industrial applications where accurate velocity control and load holding are essential.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve – Flow Control & Modular Valve (Twin Throttle Check Valve) |
| Model Designation | Z2FS22-30B/S2 |
| Nominal Size | NG22 (CETOP 10 / ISO 4401 Size 22) |
| Operating Pressure | Up to 315 bar (standard industrial grade) |
| Flow Control Function | Dual adjustable throttle with rectifier check valves (meter-in / meter-out) |
| Adjustment Type | Manual spindle adjustment with locknut (S2 adjustment variant) |
| Mounting & Connection | Sandwich / modular mounting per ISO 4401, NG22 interface |
| Seal Material | NBR (Buna-N) standard; FKM available on request |
Engineering Features & Advantages
- Precision Dual-Path Metering: Two independently adjustable throttle spindles allow accurate flow regulation in both directions of actuator travel, delivering consistent and repeatable cylinder or motor speeds.
- Integrated Rectifier Check Valves: Each flow path includes a check valve that rectifies flow direction, ensuring the throttle acts in the intended direction and providing reliable load holding and controlled deceleration.
- Pressure-Compensated Stability: The throttle design maintains stable flow characteristics across varying load pressures, minimizing speed drift and improving process consistency.
- Modular Sandwich Construction: Compact NG22 sandwich body mounts directly between directional valve and subplate, simplifying system integration and reducing piping and leak points.
- Industrial Reliability: Robust cast body and hardened internal components are built for continuous operation under severe industrial conditions, with excellent resistance to contamination and wear.
- Direct Fit Replacement: Exact dimensional and functional compatibility with Huade Z2FS22 series and equivalent OEM modular valve standards, ensuring drop-in replacement without system modification.
PRODUCT IMAGES
HUADE Z2FS22-30B/S2 Throttle Check Valve
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine HUADE Z2FS22-30B/S2 Hydraulic Throttle Check Valve. This China-made hydraulic component features a precise flow control design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.
