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Aalborg Instruments - SMV Stepping Motor Valves
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A line of electronic high precision linear Stepping Motors drive the valve needle. The resolution of the stepping motor driven needles is 0.0005"/step. Low differential pressure valves may be operated continuously (100% duty cycle). Valves stay in position as when de-energized.
Motor Valve Specifications:
- Aluminum Models: Aluminum housings and valve blocks, Viton® O-Rings, PFA closing pins. Stainless/PTFE Models: 316 stainless steel valve blocks, PTFE-Teflon™ lined Aluminum Housing blocks, Viton® O-Rings, and PFA closing pins.
- Maximum Flow Rates: 1000 sL/min (air) ,(water). Connections: 3/8", 1/2", compression and 3/4" FNPT.
- Electrical Connections: 9-pin "D" connector, located at side of the valve.
- Power Input:+12VDC @ 800 mA. Power input is protected by a 1600mA resettable fuse.
- Directional control signal:TTL compatible logic level signal (10K input impedance).(Logic High >= 10 Vdc, Low <= 1.5 Vdc).
- Speed Control Signal: Analog 0 to 5 Vdc (100K input impedance).
- TTL ON/OFF Override: TTL low level to pins 7 and 3 (10K input impendence).
- Response Time: 100ms time constant.
- Differential Pressures: 700 to 1000 mbars (10 to 15 psid).
- Maximum Operating Pressure: 500 psig (35 bars).
- Maximum Differential Pressure: 40 psig (2.7 bars).
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