Low Flow Miniature Proportional Valve
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The Low Flow Miniature Proportional Valve provides enhanced flow control for applications where precise control flow control is required between 0 to 500 sccm. Like the VSO miniature proportional valve, the Low Flow miniature proportional valve provides precise flow control of gas in proportion to input current.
The valve can be controlled with either DC current or pulse width modulation along with closed loop feedback to deliver optimal system performance. Together with its ability to provide precise control over a wide range of media, the Low Flow miniature proportional valve is ideally suited for manufacturers of Gas Chromatography and Mass Spectrometry equipment.
Features of Low Flow Miniature Proportional Valve
1. Enables precise low flow (0 - 500 sccm) control for improved instrument accuracy
2. Thermally compensated to maintain precise flow over a wide range of media
3. Computer automated calibration and serialization for performance traceability
4. Cleaned for Oxygen and Analytical Service use
5. Proven performance tested to 10 million life cycles
6. RoHS compliant
Typical Applications 1. Gas Chromatography
2. Mass Spectrometry
3. Pressure & Flow Control
4. Mass Flow Control
Performance Characteristics of Low Flow Miniature Proportional Valve
| Typical Applications | Gas Chromatography, Mass Spectrometry, Pressure & Flow Control, Mass Flow Control |
| Performance: Flow Rate Range | 0 to 500 sccm |
| Performance: Pressure Range | 0 to 150 psi |
| Orifice Sizes Available | .003" (0.076 mm) |
| Thermal Compensation | Thermally Compensated |
| Dimensions: | 0.63 in (16.51mm) |
| Dimensions: | 0.67 in (17.02mm) |
| Dimensions: Length | 1.79 in (45.34mm) |
| Wetted Materials: Body/Stem Base | 360 HO2 Brass, 430 FR Stainless Steel |
| Wetted Materials: Seals (Elastomer) | FKM |
| All Other Wetted Materials | 300 Series Stainless Steel |
| Control Method | Current or Voltage |
| Cleanliness | Analytically Clean |
| Valve Configuration Type | 2 Way Normally Closed |
| Life (# cycles) | > 10 Million cycles |
| Pneumatic Connection Options | Manifold Mount |
| Electrical Connection Options | 18" Wire Leads |
| Voltage Configurations Available | 6.5 VDC, 8 VDC, 12 VDC, 18 VDC, and 24 VDC |
| Leak Rate | <0.2 sccm of Helium |
| Power Consumption (W) | 2.0 Watts Maximum |
| Weight (lbs) | 2.2 oz (62.9g) |
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