E721 LMI Chemical Metering Pump
Chemical Metering Pump Series E Brochure
E72 Pulse Input with Dual Manual Control
110/120V ; 50-60 HZ
The Series E Metering Pump is designed for use in hazardous environments. It meets or exceeds all standards for Class I, Division I, Groups C and D; Class II, Division I, Groups E, F and G. The rugged, urethane coated, cast housing and encapsulated electronics provide excellent chemical resistance and long life. The stroke speed may be controlled manually or externally by a digital input or a milliamp input with the use of an A to D converter.
Chemical metering pumps are positive displacement, Liquifram type pumps. Output volume is adjustable while pumps are in operation from zero to maximum capacity.
The pump drive is totally enclosed with no exposed moving parts. Solid state electronic pulser is fully encapsulated with no exposed printed circuit etch and is supplied with quick connect terminals of at least 3/16” (4.75mm) wide. Electronics are housed in chemical resistant enclosure at the rear of the pump for maximum protection against chemical spillage. Electrical power consumption does not exceed 22 watts per hour under full speed and maximum pressure conditions. Pump weight does not exceed 14 lbs. (6.5kg).
Automatic pressure Relief
To eliminate need for pressure relief valve, Liquifram™ automatically stops pulsating when discharge pressure exceeds pump pressure rating by not more than 35%.
Chemical metering pump housing is made of chemically resistant glass fiber reinforced thermoplastic. All exposed fasteners are stainless steel. Chemical metering pump valves are ball type, with ceramic balls seating on combination valve seat and seal ring. Valve seat and seal ring are renewable by replacing only the combination seat-seal ring. Fittings and connections at pump head are PVC.