The Model 3000 Series maintains flow control characteristics with hysteresis of 15% or less (full-scale current).
The Model 3000 Series maintains flow control characteristics with hysteresis of 15% or less (full-scale current). This ultra-compact proportional solenoid valve is perfect for automatic gas flow control of gas chromatographs and various other analyzers. With its high resolution, the Model 3000 is also suitable for precision pressure control.
The natural environment is preserved through the balance of solids, liquids and gases that exist on the earth. However, human civilization has caused pollution that has greatly damaged our environment. The task of the present generation is to restore our environment to its natural healthy state. And this is also the greatest challenge for 21st century science and technology.
KOFLOC's corporate motto is "A Scientific Approach for Fluids." In other words, we create products that scientifically measure and control the balance of liquids and gases. We trust that through our work we are making a contribution to the regeneration of the environment and to the establishment of a prosperous society.
| Model | 3000 Series | |||||
| 3010 ＊ 1 | 3020 | 3030 | 3040 | 3050 | ||
| Orifice diameter ( φ in mm) | 0.08 | 0.28 | 0.5 | 0.75 | 1.3 | |
| Maximum CV | 0.00022 | 0.0021 | 0.0086 | 0.02 | 0.042 | |
| Pressure | Proof pressure | 980ｋPa *2 | ||||
| Operating differential pressure | Up to 0.98 MPa | Up to 0.6 Mpa | Up to 0.4 MPa | |||
| Control | Maximum control voltage | 24 VDC (PWM *3 control available) *5 | ||||
| Control voltage range | 7–20 VDC (24 VDC) | |||||
| Power consumption | Max. 2W | |||||
| Hysteresis | 15% or less/full scale current | |||||
| Filter | 20 μ (IN/OUT) | Without filter | ||||
| Internal leak | 0.1 ml/min or less within the proof pressure range of the gas | 0.2 ml/min or less | ||||
| Operating temperature | 0–50℃ *4 | |||||
| Storage temperature | −5–70℃ | |||||
| Materials of parts in contact with gas | BS | C3604, SUS430F, FKM, SUS316, SUS304 | ||||
| SUS | SUS430F, FKM, SUS316, SUS304 | |||||
| Dimensions (mm) | □ 13 × 17.5 + φ 19 × 31 | |||||
| Lead wire | UL3266 XLPE #28 | |||||
| Insulation | Class A | |||||
| Connection end | φ 3.0 (standard) | |||||
| Weight | Approx. 60 g (The type with Rc 1/8: 140 g) | |||||
*1: This product is custom made only.
*2: The specifications show the proof pressure of the valve main unit. In the case of the hose nipple type, refer to the proof pressure of the hose.
*3: PWM: Pulse width modulation
*4: The temperature coefficient of the coil copper wire resistance is 0.004. The resistance is obtained by: Rt = R0°C (1 + 0.004 × t°C). When using voltage control, make sure that the ambient temperature does not vary widely. When the ambient temperature is likely to vary widely, we recommend current control.
*5: 12 VDC is also available as an optional specification for some models.
Contact us with your specification for assessment and availability of other products configurations.
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