Microstaq
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HVAC (Residential & Commercial) Refrigeration Automotive A/C |
Commercial Consumer Automotive |
1.4–2.4mm diameter equivalent |
The SEV is a 2-way piloted flow control valve configured as a refrigerant expansion device. The SEV can be packaged with a superheat control module to provide low power, accurate, quick responding expansion device in air conditioning, heat pump and refrigeration systems. The SEV offers exceptional proportional control in refrigerant and is compatible with all HFC and HCFC/blended refrigerants. The SEV has only two moving parts for extremely long life and reliability. The Microstaq SEV will help you achieve your higher energy efficiency and improved reliability goals. | |
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Hydraulic Pneumatic |
Industrial Process Control Commercial Automotive |
0–1.6 mm diameter equivalent |
The CPS4 can be configured for 2, 3 and 4-way operation with an equivalent orifice range of 0–1.6mm (Cv=.088). The CPS4 is a proportional piloted spool valve for use in any hydraulic, pneumatic, refrigerant or medical system requiring flow, pressure or directional control. The CPS4 consumes half the power of conventional solenoid valves and can packaged on many substrates including steel, brass, ceramic and glass. The CPS4 offers the highest pressure and flow capability of any silicon valve on the market (Cv=.088 and 1,500 psi). |
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Refrigeration Hydraulic Pneumatic |
Medical Commercial Automotive |
0–1.75 mm diameter equivalent |
The PDA2 is a NO or NC 2-way silicon valve targeted toward refrigerant, pneumatic and hydraulic applications. The PDA2 features a 0–1.75mm orifice range (Cv=.11) in a direct-acting valve, which offers exceptional proportional control in pneumatic or refrigerant applications. The PDA2 can handle pressures up to 500 psi. The PDA2 is capable of operating in temperatures ranging from -40°C to 150°C requiring only 8W of power. The PDA2 can be driven by PWM or current duty. The PDA2 can be packaged on multiple substrates including steel, brass, ceramic and glass. | |
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Refrigeration Hydraulic Pneumatic |
Industrial Medical Commercial Automotive |
0–0.3 mm diameter equivalent |
The PDA3 is a cutting edge NO or NC 3-way silicon valve with an orifice range of 0–0.3mm (Cv=.0034) which is capable of operating at pressures up to 2,200 psi (150 bar, 15.2 Mpa). The PDA3 can be mounted to any substrate including steel, brass, ceramic and glass. Power consumption is half that of conventional solenoid actuated valves (8W). The PDA3 can be driven by PWM or current duty cycle and can be packaged for industrial use. The PDA3 is hermetically sealed and can handle gas and liquid state fluids from hydraulic oils to R-410a and R-134a refrigerants. |
The Microstaq valve itself is composed of multiple layers of silicon which contain thermally-actuated silicon ribs that are relatively unaffected by ambient fluid and environmental temperature effects.
The moving mechanism, a pressure-balanced sliding plate, has overcome the high-pressure barriers and/or stiction problems associated with microvalve designs of the past.
The Microstaq valve also includes a pilot valve stage that operates a larger spool valve, allowing the mechanism to handle relatively larger flow requirements.
Microstaq technology features:
- A super miniaturized yet complex valve design made possible by advanced silicon wafer processing technologies.
- The actuator design, relatively unaffected by ambient temperature, allows the valve to operate reliably in extreme temperature affected environments.
- A valve technology that has overcome the actuating force barriers and stiction issues once associated with high pressures and/or high pressure differentials (up to 2,200 psi).
- Microstaq is capable of achieving higher flow rates than are possible with current traditional membrane or orifice type microvalve designs.