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DF755, DF755EX, DF757 Hydrostatic Head Level Switches
DF755系列液压开关
-膜片操动微动开关
-用于有通气或无通气油箱，可用于Class I，Division 1危险场地
-DF755SL：铝壳
-DF755EXBR：青铜壳
-DF757：除了带可调节开关，液位差最大118英寸（3m）外，与DF755相似
The DF series are diaphragm-operated “hydrostatic head pressure” level switches. A pressure sensitive diaphragm operates a snap-switch that can be wired directly to electric pilot circuits to control pumps at predetermined levels.
The typical application is to start and stop electric driven pump(s) to maintain tank levels. It is also applicable to engine driven pumps.
Features:
Salt water disposal systems
Cooling towers
Crude oil tanks
Waterflood systems
Diesel day tanks
Sumps
DF755系列液压开关如何订购：
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