EK Series | Metering Pumps
4Pages

An Iwaki America Company EK Series | Metering Pumps OVERVIEW The EK Series pump is the world’s first IP67 electronic metering pump and is the only pump in the industry guaranteed to operate submerged 3 feet under water for up to 30 minutes! This makes the EK Series pumps ideal for wet or high humidity environments such as irrigation, agriculture, food & beverage, car wash or paper mill applications. The EK Series are highly precise metering pumps with outputs to 6.7 GPH (25.2 l/h) and a maximum pressure of 150 PSI (10 bar). The 360 stroke-per-minute operation results in high-resolution chemical feed and long service life. Quiet and compact, EK pumps prime in seconds and hold prime reliably. SUMMARY OF KEY BENEFITS High Speed Performance E-Class pumps operate at 360 strokes-per-minute. Most competitive products operate at 180 SPM or less resulting in slug feeding, accelerated diaphragm wear and poor feed control. Dual Bearing Support 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 and performance guarantees fast priming. 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 100 years of combined pump experience. This partnership has led to the design 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 feed application. EK Series waterproof pumps are designed for the harshest chemical injection environments. The rugged Polyphenylene...

Electrical Specifications Safety Performance The EK Series metering pumps are rested by Intertek to UL and CSA standards. They are certified by NSF International to NSF/ANSI Operating Conditions Liquid Temperature: PVC liquid ends: 32 to 1 04°F (0 to 40°C) PR PVDF, SS liquid ends: 32 to 140°F (0 to 60°C) Below 32°F (0°C), pump is limited to 70% of maximum pressure. Liquid cannot freeze. Mounting Dimensions 1. Addition of a Multifunction valve increases overall length by 0.37". Addition of an Auto Air Vent Valve increases overall length by 1.59" 2. Addition of a Multifunction Valve increases...

ORDER INFORMATION Pump Capacity/ Control series Pressure Module PUMP SERIES EK = IP67 aggressive environment rated electronic metering pump with external pulse control or manual speed control (adjustable to 360 strokes per minute) and manually adjustable stroke length. CAPACITY/PRESSURE RATING See chart on this page CONTROL MODULE R = For use on all EK models, features external pulse input control, &stop input. See chart on this page A = Auto Air Vent Valve installed in place of manual air sizes with -VC liquid ends only. M = Multifunction Valve is supplied in place of the manual air vent...