Control & Operation Modes
Automatic Mode: Operators set the required discharge rate directly in “L/h”, prompting the system to adjust stroke length and frequency automatically.
Pressure Display & Protection: Virtual monitoring tracks discharge pressure via solenoid load, automatically stopping the pump during abnormalities like deadhead operation.
External Signal Control: Supports pulse inputs, analog signals, and remote ON/OFF control.
Timer Operation: Schedules automatic operations by day of the week and specific time.
Diagnostics & Detection
Anomaly Detection: Detects pressure abnormalities, gas locks, and analog signal input errors.
Flow Monitoring Integration: Connects directly to contact-output flow monitors and dedicated “DULCOFLOW” metering pump flow meters.
Optional Features
Diaphragm Leak Detection: Detects liquid leaks if a diaphragm ruptures during operation, immediately halting the pump.
Alarm Relay Output: Emits a non-voltage contact signal during pump faults or low chemical tank levels.
Pacing Relay Output: Emits a non-voltage contact signal with each diaphragm stroke.
Tohkemy Corporation
Tohkemy Gamma XL Chemical Pump
Manufacturer: Tohkemy Corporation
Model: Gamma XL
Features
Electromagnetically driven diaphragm type metering pump that has evolved further from the previous model Delta
Equipped with an “Automatic mode” that allows numerical input of discharge amount settings, eliminating the conventional concept of stroke length and stroke number settings
Advanced solenoid control enables optimal stroke speed control according to liquid properties and viscosity
Intuitive “click wheel” interface inherited from Gamma X
| Problems with conventional metering pumps | Gamma XL solution | |
|---|---|---|
| It is troublesome to adjust the discharge amount, such as setting the stroke length _and the number of strokes individually. | > | The user interface provides real-time volumetric display and allows technicians to directly enter flow rates without manual calibration |
| When the flow rate is set to a very small level, the discharge interval is widened _and injection unevenness is likely to occur. | > | By operating in low-pulsation mode, discharge unevenness is reduced, making it easier to operate at very low flow rates. |
| There was no pump for micro flow rate that was easy to set with boiler chemical injection (high pressure injection). | > | Supports high pressure injection up to 2.5MPa. * Stainless steel head |
Applications
Quantitative injection of various chemicals
Chemical injection for pH adjustment
Chlorine chemical injection
Boiler chemical injection
Injection of liquid fertilizer
Fixed quantity filling
Specifications
Maximum discharge rate：0 – 80.0 L/h (0-1,330 mL/min)
Maximum discharge pressure：0.2 – 2.5 MPa
Power supply：100 – 240V 50/60Hz (Power consumption approx.78W)
Protection class：IP65 Indoor installation
＜Quiet operation＞
Exceptionally quiet operation for an electromagnetic metering pump (compared to our company’s standard)
＜Flexible suction and discharge waveforms with advanced solenoid control＞
Allows virtual discharge pressure monitoring based on solenoid load, making it possible to omit safety valves, mixers, and air chambers.
＜High economic efficiency＞
Discharge pressure monitoring is virtually possible from the solenoid load, and relief valves, mixers and air chambers can be omitted.
＜Safety features＞
Diaphragm damage detection function is available as an option
New function
Model specifications
| Pump size | Maximum discharge pressure | Maximum discharge rate | Number of strokes | Standard hose / SS | Suction lift | Power consumption | Mass(kg) | |||
|---|---|---|---|---|---|---|---|---|---|---|
| PVT/SST(MPa) | (ml/min) | (L/h) | (spm) | (mm) | (m) | PVT/SST | ||||
| Standard | 2508 | 1.0 | 2.5 | 133.3 | 8.0 | 200 | – / Outer diameter 6 | 5 | 78W | – / 11.0 |
| 1608 | 1.0 | 1.6 | 133.3 | 8.0 | 200 | 6×11 / Outer diameter 6 | 5 | 78W | 10.0 / 11.0 | |
| 1612 | 1.0 | 1.6 | 200.0 | 12.0 | 200 | 6×11 / Outer diameter 8 | 6 | 78W | 10.0 / 11.0 | |
| 1020 | 1.0 | 1.0 | 333.3 | 20.0 | 200 | 8×13.5 / Outer diameter 12 | 5 | 78W | 10.0 / 11.0 | |
| 0730 | 0.7 | 0.7 | 500.0 | 30.0 | 200 | 8×13.5 / Outer diameter 12 | 5 | 78W | 10.0 / 11.0 | |
| 0450 | 0.4 | 0.4 | 833.3 | 50.0 | 200 | 15×22 / Rp3/8″ | 3 | 78W | 10.0 / 11.0 | |
| 0280 | 0.2 | 0.2 | 1,333.3 | 80.0 | 200 | 15×22 / Rp3/8″ | 2 | 78W | 10.0 / 11.0 | |
| High viscosity PVT4 | 1608 | 1.6 | 1.6 | 106.6 | 6.4 | 200 | 15×22 | No self-priming | 78W | 10 |
| 1612 | 1.6 | 1.6 | 160.0 | 9.6 | 200 | 15×22 | No self-priming | 78W | 10 | |
| 1020 | 1.0 | 1.0 | 267.0 | 16.0 | 200 | 15×22 | No self-priming | 78W | 10 | |
| 0730 | 0.7 | 0.7 | 400.0 | 24.0 | 200 | 15×22 | No self-priming | 78W | 10 | |
Liquid-end parts material
| Name | Pump head | Connector | Diaphragm | O-ring | Check ball | Valve spring (Option) |
|---|---|---|---|---|---|---|
| PVT | PVDF | PVDF | PTFE | PTFE | Ceramic | SUS316L |
| SST | SUS316L | SUS316L | PTFE | PTFE | Ceramic | SUS316L |
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