EHE Series | Metering Pumps
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An Iwaki America Company EHE Series | Metering Pumps OVERVIEW The EHE is the workhorse of the E-Class metering pumps. EHE Series pumps have outputs up to 20 GPH (75 l/h) and pressure capabilities to 150 PSI (10 bar). Combining the EHE performance with a turndown ratio of 1800:1 yields one of the most versatile pumps in the water treatment industry today. Superior mechanical design and quality of manufacturing merge to create a pump better than the sum of its parts. The versatile control features enable the EHE to be integrated into virtually any chemical feed application. The 360 strokeper-minute operation results in high-resolution chemical feed and long service life. EHE pumps prime in seconds and hold prime reliably. SUMMARY OF KEY BENEFITS High Speed Performance E-Class pumps operate at 360 strokes-per-minute, providing high resolution chemical feed. Most competitive products operate at slower speeds, resulting in slug feeding, accelerated diaphragm wear and poor feed control. Engineered Longevity All E-Class pumps feature dual bearing support. The armature and shaft are supported with a bearing on each end, which ensures proper axial movement, enabling the E-Class to operate at 360 SPM while extending the life of the diaphragm. Superior Check Valve Performance Dual Check Valve Assemblies in both suction and discharge fittings feature precision ball guides and tapered seats. Precise machining and molding of parts limit valve ball travel, ensuring that balls fully seat and seal with every stroke. This superior check valve design guarantees fast priming and reliable performance. High Compression Ratio The compression ratio of a metering pump is important because it affects the pump’s ability to prime and vent. The compression ratio is raised when you reduce the dead volume of the pump head during operation. All E-Class pumps feature a very high compression ratio that ensures proper feed especially with off-gassing products (i.e. Sodium Hypochlorite).

Walchem and Iwaki have over 1 00 years of combined pump experience. This partnership has led to the dssign of the most innovative and comprehensive metering pump product line in the world, the E-Class Metering Pumps. E-Class features five great series: EZ, EW, EK, EHE, and EHF. The wide range of capabilities within the E- Class ensures that there's a model to fit any water treatment, food & beverage, agriculture, water conditioning, car wash, or other industrial chemical feed application. A pump's maximum pressure rating times its maximum output at that pressure gives a relative measure of...

Electrical Specifications Shipping Weight 22 lbs. (10 kg) approximate Safety Performance The EHE Series metering pumps are tested by Intertek to UL and CSA standards. They are certified by NSF International to NSF/ANSI Operating Conditions Relative Humidity: 30% to 90% non-condensing Liquid Temperature: 32 to 1 04°F (0 to 40°C) for PVC based Liquid Ends 32 to 140°F (0 to 60°C) for PP or PVDF based Liquid Ends

ORDER INFORMATION Capacity/Pressure Rating Pump Capacity/ Control Voltage series Pressure Module Liquid Options PUMP SERIES EH = Microprocessor control for all EHE models. Features manual speed control from 1 to 360 spm in 1 spm increments. External control from pulse signal with internal multiply and divide or from analog 4-20 mA CAPACITY/PRESSURE RATING See chart on this page CONTROL MODULE E = For use on all EHE models, features external pulse capability, (pulse divide, pulse multiply, analog) See chart on this page Blank = Standard 1/2" tube connection. No accessory Note: VM liquid end...