Overview
White Knight PPMC Mini Pumps feature PTFE and PFA fluid paths for high-purity chemical processes. The pumps are capable of up to 300 ml/min flow rates and 160 psi discharge pressures. They feature solenoid valves that actuate each suction and dispense action.
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Features & Benefits
- Metal-free fluid path
- ≤ 300 ml/min flow rates
- ≤ 11 bar (160 psi) fluid pressure
- ≤ 7 Bar (100) psi supply air
- ≤ 100°C (212°F)
- ≤ 0.5 m (20 in) suction lift
- Dry-run capable
- On-board controller with internal solenoid valves
- 24 VDC using 5 pin Turck power and input connections
- Operates with analog or digital external inputs, or fixed cycle rate internal controls
- Various liquid connection options
- Compact footprint
- Mount in any direction
- Easy to install
Operation
Mini-pumps operate by two solenoid valves that actuate both the suction and dispense actions of the pump. While spring-loaded checks enable the pump to mount in any direction, an upward flow path is preferred to better evacuate air bubbles from the fluid line and to improve repeatability.
Pin |
Function |
Connection Type |
Connector Diagram |
|---|---|---|---|
1 |
Power | 24 VDC Power Supply |  5 pin Turck EuroFast style connector |
2 |
Analog Input | 0-5 VDC Analog input to set cycle rate. - 0-1 VDC = Pump Off - 1-5 VDC = Pump On = 0-400 CPM |
|
3 |
Common Ground | 0 VDC Ground | |
4 |
Valve Control Actuate Suction |
Sink Type Signal - 24 VDC = Not Active - 0 VDC = Active |
|
5 |
Valve Control Actuate Discharge |
Sink Type Signal - 24 VDC = Not Active - 0 VDC = Active |
Operation |
Description |
Notes |
|---|---|---|
| Analog Input | Pump will stop cycling if analog input is 1 VDC or less. If analog input is 1-5 VDC, cycle rate equals: 100*Voltage-100 | Pump should be powered on and valve controls disconnected. |
| External Valve Control |
When pump is powered on and analog input is less than 1 VDC, solenoids and cycle rate can be controlled from external PLC. | Pump should be powered on. |
| Fixed Cycle Rate* | Pump cycles at desired rate when on. It continues cycling until powered off. |
Pump should be powered on |
*Offered by request only
Performance
* 300 mL/min at wide open flow path. Performance measurements shown are using a back pressure regulator to simulate a pressurized system. Results may vary.
Temperature Limitations
Dimensions
Dimensions [mm] in
Specifications
Model |
PPMC300 |
|---|---|
| Dispense Volume per Stroke |
~0.75 ml* |
| Max Flow | 300 ml/min |
| Max Fluid Pressure | 11 bar (160 psi) |
| Max Air Pressure | 7 bar (100 psi) |
| Cycles per min | 400 max |
| Air Consumption | 1 SCFM |
| Fluid Path Materials |
PTFE, PFA |
| Max Dry Suction Lift |
508 mm (20 in) |
| Solenoid Valves | 2x 24V Manifold Valves 0.7 CV |
| Turck Connector | 5 Pin O-ring Sealed |
| On-Board Controller |
Power: 24 VDC Max Power Consumption: 6 Watts Internal I/O: • Two 24 VDC Valve outputs External I/O: • One 0-5 VDC analog input. • Two NPN Compatible Signal Input |
* Stroke length varies depending on operation.
