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Sigma
✔ Motor-driven pump that can be handled in the same way as an electromagnetic pulse pump
✔ Equipped with a 3-step switching function for stroke speed
✔ Achieves 20% lower power consumption compared to conventional models
✔ Supports external signal input operation
✔ Removable operation unit
Features
Control type
The control type is a motor-driven diaphragm type metering pump with a built-in inverter.
It is possible to set the discharge in 1-stroke units linked to the external input, and it can be handled in the same way as an electromagnetically driven pump.
Furthermore, as a new function, it is equipped with a 3-step switching function for stroke speed, supporting a wide range of chemical injection environments.
Basic type
Standard model driven by a general-purpose motor.
Can be changed to standard / increased-safety / pressure-resistant explosion-proof / inverter motor drive type. (There are no functions of the sigma control type.)
Not only domestic specifications but also overseas specifications (IEC standard, NEMA standard) can be supported.
Specifications
lineup
| Series | Discharge rate (L/min) | Discharge pressure (MPa) |
|---|---|---|
| Sigma 1 (S1Cb/Ba) | 0.33 – 1.95 | 0.4 – 1.2 |
| Sigma 2 (S2Cb/Ba) | 0.93 – 5.86 | 0.4 – 1.0 (1.6) () Indicates SST |
| Sigma 3 (S3Cb/Ba) | 3.03 – 17.3 | 0.4 – 1.0 (1.2) () Indicates SST |
<Power supply>
● Control type:100-230VAC ±10% 50/60Hz
● Basic type: 3-phase 200V 50 / 60Hz, special specifications conform to the mounted motor
<Protective structure>
IP65 / 44 (For outdoor installation, avoid direct sunlight, wind and rain)
<Installation environment>
Non-explosion-proof area
Liquid-end part material
| Name | Pump head | Connector | Diaphragm | O-ring | Check ball |
|---|---|---|---|---|---|
| PVT | PVDF | PVDF | PTFE | PTFE | ceramic |
| SST | SUS316L | SCS22 | PTFE | PTFE | SUS316 |
Liquid-end part (common)
● Two types of PVDF resin head and stainless steel head (SUS316L) with high chemical resistance
● Equipped with a diaphragm damage detection function with a multi-layer structure as standard equipment
● Supports high-viscosity transfer liquids up to 200 mPa ・ s as standard and up to 500 mPa ・ s with the optional valve spring (Hastelloy C).
● Supports flange connection and hose nozzle connection in addition to standard insert connection
External interlocking operation (control type only)
<Pulse mode>
Supports standard (1: 1), frequency division (1: N), and magnification (N: 1).
When combined with a pulse output flow meter of 0.01 to 99.9 pulses, proportional chemical injection is possible.
<Batch mode>
Automatic stop is possible by injecting a specified amount (number of strokes) using the main unit button or an external signal.
<Analog mode>
The number of strokes is proportionally controlled according to the external 0/4-20 mA DC.
In addition to normal proportional control, simple control using the transmission signal from the pH meter is also possible.
Other functions (control type only)
<3-step stroke speed mode>
Normal mode: A uniform sine curve for both suction and discharge
Low pulsation mode for suction side: Slow down the stroke during suction to suction high-viscosity liquids stably
Low pulsation mode for discharge side: Smooths the stroke during discharge, enabling low pulsation discharge

<Flow monitor (optional)>
By installing an optional flow monitor separately, the discharge status for each stroke can be monitored.
<External output relay (optional)>
It is possible to output an alarm signal and a paging signal for each stroke.
Discharge amount can be output with 0 / 4-20mA DC.
<Click wheel type operation panel>
With standard 0.5m cable. A cable length of 2, 5 or 10 m can be selected as a normal option.
Introduction video
Head Office
1-12-11 Tagawakita, Yodogawa-ku,Osaka
532-0021
Overseas Business Department
TEL +81-6-6301-6460
FAX +81-6-6308-3022








