High Speed Performance

E-Class pumps operate at 360 strokes-per-minute. Most competitive products operate at 180SPM 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 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). 

For additional information, and choosing the correct pump for your application, please review the  Product Specifications Sheet.
If you have any questions or need assistance in selecting the correct pump for your application, please don't hesitate to contact EnviroAqua at (800) 853-0311.