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Companies
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Herion USA, Inc
- Warrendale, PA
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Hyvair Corp.
- Houston, TX, USA
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J.D. Gould Company, Inc.
- Indianapolis, IN
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Jefferson Solenoid Valves USA, Inc.
- Miami, FL, USA
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Kay Pneumatics, Inc.
- Joplin, MO
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Kip Inc.
- Farmington Hills, CT, USA
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Koganei
- Torrance, CA
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Kuhnke Automation
- Wayne, NJ
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Lexair, Inc.
- Lexington, KY
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MAC Valves Inc.
- Wixom, MI
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Mac Valves Inc., Pacific
- Penrose, Auckland, New Zealand
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Mac Valves, Europe, Inc.
- Liege, Belgium
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Max (A) Industries
- Vadodara, Gujarat
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Metal Work
- Brescia, Italy
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Metal Work Pneumatic
- Dallas, TX, USA
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Mindman Industrial Co., Ltd.
- Taipei, Taiwan
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Ningbo Easun Science &Technology Co., Ltd.
- Cixi, Ningbo City, Zhejiang, China
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Ningbo Xingyu Electronic Co.,Ltd.
- Ningbo, Zhejiang
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Norgren
- Littleton, CO, USA
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Numatics GmbH
- St. Augustin, Northrine-Westfalia
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Numatics, Inc.
- Highland, MI, USA
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Parker Hannifin Corp - Pneumatic Division
- Cleveland, OH, USA
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Parker Hannifin Corp - Pneutronics Division
- Hollis, NH, USA
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Peter Paul
- New Britain, CT
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PiezoValve
- Columbus, OH, USA
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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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