The supply explosion-proof manual button smashing glass, giant. Supply fire explosion-proof equipment, the amount of the giant explosion proof manual button (shattered glass type), to supply the fire explosion-proof equipment giant amount of explosion-proof manual button (crushed glass type) the supply fire explosion-proof equipment giant amount of explosion-proof manual button (shattered glass type) 3 BAL-proof hydrant button is pressed the self-locking non-coding hydrant button. When artificial confirmed the fire accident shattered the glass plate on the button, the button normally open contact closure, to issue a request signal to start the fire pump alarm controller or directly start the fire pump. The button and supporting the use of any type of fire alarm controller and has a water-proof, dust-proof function, this product meets the GB3836-2000 standard requirements of production. The main technical parameters 1, proof in the form: flameproof (shattered glass type), Ex-mark: Exd Ⅱ BT6 and Exd Ⅱ CT6 temperature range: ABS gland: -20 ℃ to 60 ℃;????????? ??????????? steel plate gland: -40 ℃ ~ 100 ℃ (instantaneous high temperature: 600 ° C) 4, Humidity range: less than 95% R???????????? ?????????????? the 5 contact capacity: 8A 6, contact form and quantity: normally open contact (a); normally closed contact (a) 7 operating voltage: DC24V or AC220V??????????????????????? 8, Dimensions: 130 × 110 × 56mm?????????????? ?????????, installation dimensions: 116mm 10 weight?? amount: 0.9 Kg Line caliber 2-M22 × 1.5 (number and size of the line caliber according to the needs of users design and production)