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Companies
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Clippard Instrument Lab. Inc.
- Cincinnati, OH, USA
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AAA Products
- Dallas, TX
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AFS Inc.
- Calgary, AB, CAN
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Air-Mite Devices, Inc.
- Chicago, IL
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Airtac Enterprise Co., Ltd.
- Pan-Chiao, Taipei, Taiwan
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ARO
- Bryan, OH
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Asco
- Florham Park, NJ
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Automatic Valve
- Novi, MI
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Bifold FluidPower Ltd.
- Middleton, Manchester, UK
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Bosch Rexroth Pneumatics
- Lexington, KY
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Burkert
- Irvine, CA
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BWB Controls
- Houma, LA
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Compair Systems
- Mumbai, Maharashtra
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Control Line Equipment
- Cleveland, OH
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CS Fluidpower
- Taipei, Taiwan
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Dynamco
- McKinney, TX
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Evolutionary Concepts, Inc.
- San Dimas, CA, USA
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Festo Pneumatic
- Hauppauge, NY
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Fim Valvole
- Lodi Vecchio, Lodi, Italy
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Finetech Engineering Corporation
- Ahmedabad, Gujarat, India
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GC Valves Solenoid Valves
- Simi Valley, CA, USA
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General Imsubs P. Ltd.
- Ahmedabad, Gujarat, India
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Granzow Inc.
- Charlotte, NC, USA
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Haitian Automatic Industry
- Ningbo, Zhejiang, China
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Helipebs Controls Ltd.
- Gloucester, UK
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More Information on Solenoid Air Valves
Solenoid air valves electrically control compressed air.
Direct solenoid valves feature a solenoid coil that shifts a spool or poppet directly. A spring returns the spool once the electrical current is removed. Large direct-solenoid valves use strong, high-power solenoids.
Solenoid pilot valves use a small pilot valve to control a larger valve. The pilot valve directs air pressure to the end of the spool or poppet, shifting it to the energized position. A spring at the opposite end of the spool returns the spool when the pilot valve is de-energized and pilot pressure is removed.
Some manufactures offer a 4-way pilot that uses a 4-way valve to shift the spool. The advantage of the 4-way pilot is that there is no return-spring on the spool since air pressure is used to shift the spool in both directions.
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