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National Stock Number:
4520-01-333-0736
Federal Supply Class:
4520
National Item Identification Number:
013330736
Description:
DRAFT CONTROL,FLUE,AUTOMATIC
Detail:
AN ITEM CONSISTING OF A METAL FRAME IN WHICH IS INSERTED A FLAT METAL PLATE MOUNTED ON A SHAFT. THE PLATE, FLUCTUATING AUTOMATICALLY ACCORDING TO CHANGES IN ATMOSPHERIC PRESSURE, CONTROLS THE STACK OR FLUE DRAFT AND MAINTAINS AN ABSOLUTE CONSTANCY OF DRAFT REGARDLESS OF VARYING WEATHER CONDITIONS.
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Manufacturer Information:
| 1782K24 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| GENERAL CHARACTERISTICS ITEM DESCRIPTION | MOUNTED BETWEEN FURNACE AND BOILER IN SMOKE PIPE; FITS PIPE 7.000 IN. TO 8.000 IN.; FOR OIL AND COAL UNITS |
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