FOREACH HLD3 is a 30 mm stroke rotary-valve syringe pump integrating glass-syringe metering with multi-way fluid-path selection. It accepts 50 μL–5 mL glass syringes and offers rotary-valve configurations including 3-way and 9-way options for reagent selection, sample dilution and metered dispensing. Valve configurations and connections can be customized for the liquid sources, delivery directions and washing paths.
HLD3 selects reagent, diluent, wash-liquid or delivery paths sequentially through the rotary valve, while the syringe aspirates and dispenses measured volumes. It suits modules requiring sequential switching between multiple fluid paths. RS-232, RS-485 and CAN communication options are available. Select the configuration according to dispense volume, routing sequence, flushing requirements and installation space for automated analysis and laboratory liquid handling.
Typical Applications:
Reagent selection, Sample dilution, Flushing and carryover control
| Product Series | HLD3 Rotary Valve Syringe Pump Series |
|---|---|
| Stroke | 30 mm |
| Number of Channels | 1 channel |
| Full-Stroke Travel Time | 1.2–1200 s |
| Linear Speed | 0.025–25 mm/s |
| Resolution | Standard Mode: 3000 increments; Microstep Mode: 24000 increments |
| Valve Switching Time | Adjacent Ports ≤250 ms |
| Valve Configuration | Planar Rotary Valve / Cylindrical Rotary Valve |
| Standard Port | 1/4-28 UNF |
| Volume Range (Glass Syringe) | 50 μL–5 mL |
| Specification | Repeatability ≤0.05% (250 μL and above); ≤0.1% (100 μL and below) |
| Valve Configuration | Planar Rotary Valve: 3-way Distribution Valve; Cylindrical Rotary Valve: 3-way Non-Distribution Valve / 3-way Distribution Valve / 9-way Distribution Valve |
| Rotary Valve Pressure Rating | 0.41 MPa / 0.7 MPa |
| Communication Type | RS-232 / RS-485 / CAN |
| Installation Dimensions (L × W × H) | 107 × 45 × 127 mm / 116 × 45 × 127 mm |
30 mm stroke syringe pump with 3-way or 9-way rotary valves, compatible with 50 μL–5 mL glass syringes for selection between multiple liquid sources and metered dispensing
For sequential reagent selection, use the confirmed valve diagram to connect liquid sources and delivery paths. Valve connections are selectable routes rather than independent metering units. Account for the volume displaced from shared passages before delivering the next reagent.
For sample preparation, add a defined diluent volume to a known sample volume. The final dilution depends on both volumes and subsequent mixing. Validate the working stroke with the actual liquid and program aspiration, dispensing and mixing as separate system operations.
When reagents share a syringe and valve passages, define a compatible flushing sequence covering the syringe, common path, outlet tubing and needle. Check carryover after the higher-concentration reagent using a blank or a suitable analytical method before setting wash volume and timing.
Provide the number of liquid sources and destinations, aspiration and delivery direction at each step, dose, cycle time, media and wash liquids, acceptable carryover, connections, installation dimensions and communication requirements. Options such as 3-, 5- and 9-way valves are examples; confirm the final valve and connections against the required fluid circuit.
Syringe pump selection should consider the required dispense volume, accuracy and repeatability, together with the number of metering channels, fluid paths and dispensing cycle time. Wetted-material compatibility, installation space and communication interfaces should also be evaluated. Metering channels refer to the syringe-metering units, while valve configurations determine how fluid paths are switched; each should be selected to suit the dispensing and fluid-routing requirements. RS-232, RS-485 and CAN communication options support instrument-controlled aspiration, dispensing and valve switching.
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No. Valve ways describe fluid-routing configurations, not separate syringes. Use the customized fluid diagram to identify the common connection, liquid sources, outlets and permitted switching paths. Valve-way count does not establish how many liquids can be dispensed simultaneously.
Share the syringe size, stroke, channel count, valve arrangement, communication interface, installation space, and fluidic integration requirements. The Foreach engineering team can help confirm a suitable configuration.