Frank W. Murphy DF Series Hydrostatic Head Level Switch

• 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. • Typical application is to start and stop electric driven pump(s) to maintain tank levels. • It is also applicable to engine driven pumps. • Suitable for atmospheric tanks in a non-hazardous area. • Aluminum case. • Maximum pressure rating: 25 psi. • Process connection: 1” NPT.