Advanced Metering Pump Technology Walchem and Iwaki combined our talents to design the most innovative and comprehensive metering pump product line in the world. With over 50 years of combined pump experience, in an array of different markets, the Iwaki-Walchem partnership leverages our strengths to exceed even our toughest customer expectations. Committed to new product development, our products are innovative and revolutionary. A perfect example is the EK pump - the first waterproof IP67 metering pump in the world.              E-Class Featuring four great pump series, EZ, EW, EK and EHE, E-Class pumps are powered by advanced microprocessor-based electronics and superior mechanical design. With capacities up to 20 GPH and a maximum pressure rating of 215 PSI the E-Class has a pump that will fit any water treatment, municipal and industrial wastewater, agriculture, water conditioning, car wash or any other chemical feed application. And the entire E-Class pump line is backed with a comprehensive 2-year warranty that covers the entire pump, including the liquid end and diaphragm. 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 features 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 pumps 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)

Choose From the Following Pump Models

• EZ  SERIES Economy series
• EW SERIES Performance series
• EK SERIES Waterproof series
• EH SERIES High output performance series
• LK SERIES Motor driven high output pump series

	Looking for a better way to feed bleach? We have the solution! New High Compression EHE Series Metering Pump
Designed specifically for bleach applications Self-primes and more importantly, holds prime Features a high compression head with an auto air vent valve ensuring that bleach-off gassing does not affect pump performance We guarantee performance by offering a 2 year warranty that includes the liquid end and diaphragm!!

EHB & EHC SERIES Are Replaced by the EW Series Pumps High speed operation - up to 360 strokes per minute Self primes in seconds External pulse input comes standard Capacities up to 6.7 gph (420 ml/min) Manually adjustable stroke length Superior valve construction, with double ball check valves

EHE SERIES The most powerful electronic metering pump Outputs up to 20 gph and pressures 30 to 150 psi Dual control with speed adjustment in 1 stroke/minute increments from 1 to 360 Self primes in seconds Onboard microprocessor-based control circuitry Two digital external input modes and four analog external input modes

EZ SERIES Economy without sacrificing quality or performance EZ Series pumps offer precise chemical injection at a low cost. Manual or on/off control for simple addition applications. This is a great water treatment metering pump for dosing cooling towers, well systems, when high performance is needed at the lowest cost. We at Cannon Water use these pumps on most of our projects and find them to be superior to in workmanship. Best feature: Self primes and does not loose prime due to Walchems excellent suction foot valve assembly. . Manual or on/off control Speed up to 360 strokes per minute Digital interface Capacities to 3.2 gph (200 ml/min) Option for built in feed timer ON SALE $275.00 each Innovative Timer Control The EZ-Timer module integrates Walchem's EZB pump technology with a versatile programmable timer. Timed feed control can be programmed in daily or weekly cycles. The weekly schedules can be programmed in either 1 or 2-week cycles with a daily on-time. The daily timer can be set for multiple daily on-times. The EZ-Timer pump is a simple and effective way to automate additions in small systems. Use this to feed Biocides without the need for a seperate controller. Perfect add on to your cooling tower.