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National Stock Number:
4520-01-250-7081
Federal Supply Class:
4520
National Item Identification Number:
012507081
Description:
HEATER,DUCT TYPE,STATIONARY
Detail:
A DEVICE CAPABLE OF PRODUCING HEAT FROM GAS, LIQUID FUEL, OR AN ELECTRICAL HEATING ELEMENT DESIGNED FOR PERMANENT INSTALLATION IN SHEET METAL DUCTS OF A FORCED AIR CIRCULATING SYSTEM. IT CONSISTS OF (1) A FINNED, STEEL BURNER TUBE, A COMBUSTION AIR BLOWER, A CONTROL PANEL, AND A CONSTANT LEVEL FUEL SUPPLY SYSTEM OR (2) A DEVICE HAVING A HEATING ELEMENT WHICH WHEN CONNECTED TO AN ELECTRICAL SOURCE, DIRECTLY IMPARTS HEAT. IT MAY BE PROVIDED WITH A FLANGED OUTER CASING TO FACILITATE MOUNTING IN PLANNED OR EXISTING DUCT WORK. CIRCULATION OF THE HEATED AIR IS ACHIEVED BY USE OF A BLOWER OR FAN NOT INTEGRAL WITH THE HEATING UNIT.
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Manufacturer Information:
| 106-056816-000 | 65586 | CHROMALOX INC | | 106-056816-036 | 65586 | CHROMALOX INC | | EH31 | 17032 | VALAD ELECTRIC HEATING CORP. | | EH31-H | 17032 | VALAD ELECTRIC HEATING CORP. | | TFZ-31H | 74924 | INDEECO LLC | | MIL-H-22594 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| DUCT HEIGHT | 12.250 INCHES | | DUCT WIDTH | 42.000 INCHES | | CURRENT RATING IN AMPS | 114.8 | | CURRENT TYPE | AC | | DEPTH | 8.000 INCHES NOMINAL | | FREQUENCY IN HERTZ | 60.0 | | HEATING ELEMENT TYPE | ELECTRIC NONIMMERSION | | HEAT DELIVERY RATE | 172306.0 BRITISH THERMAL UNIT | | HEAT MEDIUM TYPE | AIR | | HEIGHT | 15.250 INCHES NOMINAL | | INCLOSURE MATERIAL | STEEL OR STEEL CORROSION RESISTING | | MOUNTING TYPE | VENTILATION DUCT | | NONDEFINITIVE SPEC/STD DATA | 31EH SIZE AND H TYPE | | PHASE | THREE | | SPECIAL FEATURES | MANUAL RESET | | VOLTAGE IN VOLTS | 440.0 | | WIDTH | 51.000 INCHES NOMINAL | | SPECIFICATION/STANDARD DATA | 81349-MIL-H-22594 GOVERNMENT SPECIFICATION |
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