Z2FS10 Sandwich Plate Double Throttle Check Valve

Shijiazhuang Laiye Import& Export Trading Co., Ltd. is one of the leading manufacturers and suppliers of z2fs10 sandwich plate double throttle check valve in China, also supports customized service. If you're going to wholesale high quality z2fs10 sandwich plate double throttle check valve made in China, welcome to get pricelist from our factory.

The Z2FS series comprises four size variants - 6, 10, 16, and 22 - and the Z2FS10 is the size 10 version. All share a modular sandwich-type construction: the valve body mounts directly between a directional valve and a manifold block. This arrangement eliminates the need for separate piping between the valve and the actuator, reducing both installation labor and the number of potential leak points in the circuit.

Within the series, the size 10 occupies a middle position. Its flow rating of 160 L/min falls between the 80 L/min of the size 6 and the 250 L/min and 360 L/min of the size 16 and size 22 respectively. This places it in a range that covers a substantial portion of industrial hydraulic actuators - cylinders in injection molding machines, forklift masts, and machine tool feeds, for instance. For systems with lower or higher flow requirements, the other sizes are available to match those needs.

The valve operates on a straightforward principle. In one direction, flow passes through an adjustable orifice, which creates a pressure drop and reduces the flow rate delivered to the actuator. Adjustment is manual, via a spindle that alters the orifice opening. In the reverse direction, a spring-loaded check valve opens and allows flow to return with minimal restriction. This gives the user independent control over the extending and retracting stroke speeds, should the application require it.

When selecting among the four sizes, the governing factor is the flow demand of the actuator. That demand is determined by the cylinder bore, the rod diameter, and the desired traverse speed. The pressure rating also warrants attention - the size 6 is rated at 315 bar at the working ports, while the other three are rated at 350 bar. For most industrial systems running at 250 bar or below, this difference may not be material. For systems operating closer to the upper limit, the distinction becomes relevant.

Parameter interpretation - What these values mean for your hydraulic system

Flow capacity (160 L/min for Z2FS10): This flow range supports medium-to-large hydraulic actuators. For context, a typical injection molding machine's core-pulling cylinder or a 5-ton forklift mast cylinder operates within this flow envelope. Systems with smaller actuators (under 80 L/min) would be better matched to the Z2FS6.

Pressure rating (350 bar at P/A/B): This high-pressure tolerance makes the Z2FS10 suitable for heavy-duty industrial circuits, including metal forming presses and mobile equipment with high load requirements.

T port pressure (160 bar across all sizes): The T (tank/return) port has a lower pressure limit across the entire series, which is typical for return line components in hydraulic systems. 

The Z2FS10 is commonly installed in circuits where the actuator operates in the 160 L/min range. Examples include:

Injection molding machines: used on core-pulling cylinders where speed control prevents mold damage.

Forklifts and aerial lifts: installed in the lift circuit to control lowering speed and prevent sudden drops.

Machine tools (milling, grinding): regulates feed rates to avoid chatter and improve surface finish.

Press auxiliary functions: controls ejector or transfer speeds in forming presses.

In each of these cases, the valve is selected because the flow requirement falls within the Z2FS10's 160 L/min capacity, and the system pressure does not exceed 350 bar at the working ports. If your application has lower flow, consider the Z2FS6; for higher flow, the Z2FS16 or Z2FS22 would be more appropriate.

Consider this common scenario: you have a directional valve on your manifold, and you need the cylinder to move at a controlled speed - not too fast, not too slow, just what the process calls for. The usual approach is to add a flow control valve somewhere in the line. But here is where the Z2FS series takes a different route. Instead of running extra pipes between components, you simply sandwich the valve between the directional valve and the manifold. No tubing, no extra fittings, no additional places for oil to leak out over time. Assemble the stack, torque the bolts, and it is done.

Now, which size do you pick? The series comes in four: 6, 10, 16, and 22. The Z2FS10 is the size 10, rated for 160 L/min. To put that in perspective: size 6 gives you 80 L/min, size 16 jumps to 250 L/min, and size 22 goes all the way to 360 L/min. That means the Z2FS10 sits right in the middle - and for a lot of shop floors, that middle range is where most of the work happens. Injection molding machines, forklift masts, machine tool feeds - those typically run cylinders that fall into this flow band. So if your machine is one of those, you are already in the right neighborhood.

 

The Z2FS10 sandwich plate double throttle check valve is manufactured by Shijiazhuang Laiye Import & Export Trading Co., Ltd, a company that has been operating in the hydraulic valve sector since 1988. It is part of Hebei Onederful^® Hydraulic Technology Co., Ltd., which focuses on R&D, production, and sales of hydraulic components.

The company's production facility employs over 200 people, including production engineers and quality control specialists with experience in pressure valve manufacturing. Annual production capacity supports the shipment of more than 10,000 containers of hydraulic valves and related components to international markets.

Quality control follows a structured process. Each batch of valves - including the Z2FS10 - goes through at least 10 inspection steps, covering:

Incoming raw material verification

In-process dimensional checks during machining

Assembly verification

Functional testing (pressure retention, internal leakage, flow characteristics)

Final inspection before packaging

The company holds ISO 9002 certification (obtained in 2000) and has held formal export rights since 2001. Its products are currently supplied to customers in Russia, Europe, the Middle East, South America, and Asia.

For customers requiring modifications, OEM services are available. Custom orders are assessed on a case-by-case basis, with standard lead times of 10–14 business days for non-stock items. Stock items ship within 2–3 business days.

 

 

Z2FS10 Product Advantages

The Z2FS10 sandwich plate double throttle check valve is engineered with specific performance characteristics that support reliable operation in hydraulic systems. The following advantages are derived from its design parameters and manufacturing execution:

Pressure-rated for heavy-duty circuits: With a maximum working pressure of 350 bar at P/A/B ports, the Z2FS10 is designed to operate in high-pressure hydraulic environments. This pressure rating makes it suitable for integration into industrial machinery and mobile equipment where system pressures typically exceed 250 bar.

Flow capacity matched to medium-to-large actuators: The 160 L/min flow rating positions the Z2FS10 between the smaller Z2FS6 (80 L/min) and the larger Z2FS16 (250 L/min) and Z2FS22 (360 L/min). This flow envelope covers common hydraulic actuators including cylinder speeds for injection molding core pulls, forklift mast lifts, and press auxiliary movements.

Modular integration without additional piping: As a modular sandwich-type valve, the Z2FS10 mounts directly between directional control valves and manifold blocks. This configuration reduces the number of threaded connections in the hydraulic circuit, minimizing potential leak paths and simplifying system assembly.

Design number 20 - specific engineering baseline: The Z2FS10 carries design number 20, which distinguishes it from the design number 30 used on specifications 6, 16, and 22. This design iteration represents a specific engineering configuration optimized for the NG10 size class, with manufacturing parameters calibrated accordingly.

Consistent quality through systematic inspection: Each Z2FS10 unit undergoes functional testing as part of the manufacturer's quality control process. This includes pressure testing at rated levels and internal leakage verification, ensuring that each valve meets its published specifications before shipment.

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