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Posted: Wednesday 10th October 2018

A new range of high pressure metering pumps which offer important features and benefits such as virtually pulse-free operation, consistent high accuracy and outstanding hydraulic efficiency, are now available from pumping specialists MICHAEL SMITH ENGINEERS.

HYDRA-CELL MT8 Series pumps will deliver positive displacement flows with highly repeatable accuracy so they are ideally suited to metering and dosing applications where precise volumes of liquid are required in a specified time period.

These pumps are designed to handle a variety of processing liquids at low flow rates and high pressures, exceeding API 675 performance standards for steady-state accuracy (±1%), linearity (± 3%) and repeatability (±3%). Electronic flow control increases accuracy and reliability and they are also available with a manual, variable speed gearbox for use in hazardous areas.

Their integral multiple hydraulically actuated diaphragms ensure pulse-free, linear flows across a wide pressure range, without the need for expensive pulsation dampeners. They are also are easy to monitor ensuring simplified control systems.

MT8 pumps are also hermitically sealed which effectively separates the power end from the process fluid which helps to eliminate leaks and the associated risks and hazards along with the expense of seals and packing. They also have a replenishment valve system in every piston which ensures optimum actuating oil on every stroke resulting in the benefit of continuous accuracy whilst also protecting the pump from damage in the event of a blocked suction line.

The range covers capacities from 0.23 lit/hr up to 30.2 lit/hr at discharge pressures to 241 bar and is available in a choice of wetted materials including PVC, PVDF, 316 stainless steel and Hastelloy C. A duplexing option is also available which enables two MT8 pumps to run at the same flow rate with only one gearbox and one motor, effectively doubling capacity within a smaller footprint and also lower investment cost than conventional metering pumps. For example, two different chemicals can be metered in a precise 1:1 ratio.

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August 2021

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