SME ZGB pumps are heavy duty Hard Metal Slurry Pumps mainly used for thermal power plants.
The ZGB pumps rotating speed is fixed, 740r/min or 980r/min or 1480r/min.
The head is adjusted by cutting the impellers. The higher the speed is, the smalled the impeller will become.
ZGB pumps are mostly seen in use in series to achieve higher discharge heads.
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Power Plant Slurry Pump, Power Plant Metal Slurry Pump, Power Plants Slurry Pumps Shijiazhuang Minerals Equipment Co., Ltd , https://www.smepump.com
In fact, this is the salesman flickers yours. Because emergency power behind the emergency lights can not be installed so big. So the general emergency is 90 minutes. Therefore, the emergency light emergency time is related to the power.
LED Emergency Light Model NFE9121
Ocean King LED Emergency Light NFE9121 Price NFE9121 Production NFE9121 Wholesale Technical Data:
Rated voltage: AC/DC85-260V50Hz
Light source: LED
Light source power: 4×1W
Discharge time: 12h
Charging time: 8h
Enclosure protection: IP65
Anti-corrosion level: WF2
Total weight: 1kg
With automatic power-off emergency function, the time from the mains to the emergency is within 0.5s. The emergency state is constant current source output, and the illumination is stable.
The conversion range from normal mode to emergency mode is from 132V to 187V, and it has good electromagnetic compatibility.
The light source has a lifetime of up to 100,000 hours, a battery life of 1000 cycles, an enclosure protection class of IP65, and an anti-corrosion rating of WF2.
One-piece structure design, easy installation, with rotatable mounting bracket, adjustable light projection angle.
How long does the NFE9121 emergency light last?
How to make emergency lights reach more than 10 hours, which is the longer the power is, the longer the emergency time is. Such as the marine king NFE9121 emergency lights, they consist of 4 light sources. So they standard wattage 4*1W4*2W4*3W, but they usually have the longest emergency time is 4*1W, it can be emergency to more than 10 hours. Many people on the market now say: "4*3w" can be more than 10 hours emergency.