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Aerospace Applications
Aerospace Controls Neo Dyn airborne switches have the highest quality, reliability, and service life available in the industry. Our leadership is the result of total commitment to cutting edge research and development for new products, materials and manufacturing methods to meet the most challenging applications - present and future.
All Neo Dyn switches feature a negative rate Belleville spring snap acting device which offers greater set point stability, vibration resistance, over-pressure capability and cycle life. NEMA 4 and 13 designations represent weather-proof switch construction and NEMA 7 and 9 represent explosion-proof hermetically-sealed designs.
Neo-Dyn switch types are categorized as follows:
Pressure Switch - The pressure being sensed is referenced to a near-perfect vacuum within a sealed reference chamber.
Pressure Switch Actuates when pressure to the "high" port exceeds the pressure to the "low" port by a predetermined value.
Senses differential pressure generated by flow through through a venturi to actuate an electrical switch at a predetermined flow level.
Gage Pressure Compares pressure being sensed to atmospheric pressure. Positive pressure switches sense monitored pressure above atmospheric while vacuum switches sense pressure below atmospheric.
Same as pressure switch with the addition of a fluid vapor charged sensing probe. This probe is exposed to the "basic sensor" to establish reference with pressure variation due to temperature change.
Gage Pressure Compares pressure being sensed to atmospheric pressure. Positive pressure switches sense monitored pressure above atmospheric while vacuum switches sense pressure below atmospheric.
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1173P Miniature Pressure Switch. Set point, 15 - 105 psig; Deadband, 3.5 psi or 15%), whichever is greater, to 45% of the set point. Proof pressure, up to 300 psig. - This hermetically sealed gage switch with welded stainless steel construction is designed for the most hostile vibration, shock, temperature and environmental conditions.
1193P Miniature Absolute Pressure Switch. Set point, 5 to 105 psig; Deadband, 3.5 psi or 15%, whichever is greater, to 45% of the set point. Proof pressure, up to 300 psia. Electrical, 1 amp, 28 VDC. - This hermetically sealed switch with welded stainless steel construction insures absolute setting integrity.
1194P Absolute Pressure Switch. Set point 0.5" to 70" HgA; Deadband; 1.5" Hg minimum. Proof pressure, up to 50 psig. - This aneroid capsule type pressure switch is suitable for altitude sensing applications from 0 to 100,000 ft.
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1153P Miniature Differential Pressure Switch. Set point, 5 to 105 psid. Deadband, 3.5 psi or 15%, whichever is greater, to 45% of the set point. Proof pressure, up to 300 psig hi over lo simultaneous. - This switch has welded stainless steel construction and is designed for the most hostile vibration, shock, and temperature conditions.
1156P Miniature Differential Pressure Switch. Set point, 7 to 280 psid. Deadband, 5 psi or 10%, whichever is greater, to 45% of the set point. Proof pressure, up to 3000 psig. - This switch has compact aluminum construction for pneumatic, fuel and moderate hydraulic applications and to insure vibration, shock & surge resistance.
1163P Differential Pressure Switch. Set point, 3 to 70 psid. Deadband, 2 psi or 15%, whichever is greater, to 45% of the set point. Proof pressure, up to 350 psig. - This hermetically sealed switch with a stainless steel electrical enclosure assures stable set points over varying system pressures. It is suitable for air, oil and fuel applications.
1164P Differential Pressure Switch. Set point, from 5" to 100" H2O Differential. Deadband, 3" H2O or 15%, whichever is greater, to 45% of the set point. Proof pressure, up to 150 psig. - This switch is designed for water column differential setting capability with stability over varying system conditions. It is suited for air, oil and fuel applications.
1166P Differential Pressure Switch. Set point, from 1" to 100" H2O. Deadband, 10" H2O or 8%, whichever is greater, to 45% of the set point. Proof pressure, up to 100 psig. - This switch is designed for low water column setting and narrow deadband capability for gage, differential, or vacuum applications with stable set points over varying system conditions. It is suitable for airspeed, duct flow and fluids.
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1158F Fluid Flow Switch. Set point, .5 to 7 GPM. Deadband, .08 GPM or 15%, whichever is greater, to 45% of the set point. Proof pressure, up to 275 psig. - This switch is a low pressure drop venturi design and is ideally suited for coolant, oil and fuel flow applications.
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1103P Miniature Pressure Switch. Set point, 5 to 105 psig. Deadband, 3.5 psi or 15%, whichever is greater, to 45% of the set point. Proof pressure, up to 300 psig. - This vented gage switch with welded stainless steel construction is designed for the most hostile vibration, shock, and temperature conditions.
1105P Miniature Pressure Switch. Set point, 7 to 280 psig. Deadband, 3.5 psi or 8%, whichever is greater, to 45% of the set point. Proof pressure, up to 4500 psig. - This vented gage switch with versatile aluminium construction provides excellent vibration and shock resistant capabilities.
1106P Miniature Pressure Switch. Set point, 7 to 1000 psig. Deadband, 5 psi or 10%, whichever is greater, to 45% of the set point. Proof pressure, up to 3000 psig. - This vented gage switch with compact aluminium construction provides excellent service for fuel, pneumatic, and moderate hydraulic applications.
1115P Pressure Switch. Set point, 2 to 70 psig. Deadband, .5 psi or 8%, whichever is greater, to 45% of the set point. Proof pressure, up to 1000 psig. - This vented gage switch is designed for low setting and narrow deadband capability. It is ideally suited for air, oil and fuel applications.
1125P Pressure Switch. Set point, 40 to 3000 psig. Deadband, 5 psi or 8%, whichever is greater, to 45% of the set point. Proof pressure, up to 7500 psig. - This vented gage mid range pressure switch is designed for narrow deadband high pressure pneumatic applications.
1144P Compact Pressure Switch. Set point, from 5" to 100" H2O. Deadband, 3" H2O or 15%, whichever is greater, to 45% of the set point. Proof pressure, up to 100 psig. - This vented gage switch is designed for water column setting capability. Its negative rate Belleville disc sensing mechanism offers good set point stability for air, oil and fuel applications.
1173P Miniature Pressure Switch. Set point, 15 - 105 psig; Deadband, 3.5 psi or 15%), whichever is greater, to 45% of the set point. Proof pressure, up to 300 psig. - This hermetically sealed gage switch with welded stainless steel construction is designed for the most hostile vibration, shock, temperature and environmental conditions.
1203P Miniature Pressure Switch. Set point, 500 to 3500 psig. Deadband, 100 psi or 10%, whichever is greater, to 45% of the set point. Proof pressure, up to 4500 psig. - This piston sensor design specially serves hydraulic applications. Its welded stainless steel construction accommodates the most hostile vibration, shock, and temperature conditions.
1205P Miniature Pressure Switch. Set point, 400 to 2400 psig. Deadband, 100 psi or 45% of the set point. Proof pressure, up to 4500 psig. - This piston sensor design specially serves hydraulic applications with million-PSI/sec. rise rate reqts. Its durable aluminum construction offers excellent vibration, shock and serge resistance.
1206P Miniature Pressure Switch. Set point, 40 to 2400 psig. Deadband, 20 psi or 10%, whichever is greater, to 45% of the set point. Proof pressure, up to 4500 psig. - This switch is a piston sensor design with compact aluminium construction for vibration, shock & surge resistance. Especially suitable for hydraulic applications requiring million-PSI rise rates per second.
1225P Compact Pressure Switch. Set point, 50 to 7500 psig. Deadband, 30 psi or 10%, whichever is greater, to 45% of the set point. Proof pressure, up to 15000 psig. - This piston sensor design specially serves mid-to-high range hydraulic applications. Its refined short stroke piston and low friction seal insures extensive cycle life.
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1173L Limit Switch. Operating force from 4 lbs. to 25 lbs. Release force down to 1 lb. Overtravel to .25 inch. Operating tolerance down to ±.010 inch. - This hermetically sealed switch with welded stainless steel construction assures stable set points. It is suitable for extreme vibration, shock and temperature conditions.
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1103TV Miniature Temperature Valve. Set Point, +80°F to +550°F. Calibration Tolerance, whichever greater, ± 10°F or ±2% of the set point. Deadband, freon 15°F to 75°F maximum. Proof pressure, up to 1500 psig. - This normally closed air valve with welded stainless steel construction features a saturated vapor thermal system.
1173T Miniature Temperature Switch. Set Point, -40°F to +550°F. Calibration Tolerance, ± 10°F. Deadband, from 7°F minimum. Proof pressure, up to 1500 psig. - This hermetically sealed switch with welded stainless steel construction features a saturated vapor probe thermal system to achieve quick response and repeatable set points.
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1184P Vacuum Switch Set point, .5 to 100" H2O Vacuum. Deadband, 3" H2O or 15%, whichever is greater, to 45% of the set point. Proof pressure, up to 150 psig. - This vented gage vacuum switch is designed for water column setting capability. Its negative rate Belleville disc sensing mechanism offers good set point stability for air, oil and fuel applications.
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