Solenoid-Driven Metering Pumps vs Electric Motor Driven Metering Pumps

Solenoid-Driven Metering Pumps vs Electric Motor Driven Metering Pumps One of the questions we frequently get asked when potential customers are designing their dosing system is – would we be better off with a solenoid-driven metering pump or an electric motor driven pump. The short answer is, if the dosing system is critical and running […]

Flow Adjustment Repair, Replacing the Flexible Shaft

All standard Madden Pumps come with a flow adjustment knob. The flow rate is controlled by a lost motion mechanism. The adjustment knob controls the stroke length of the piston, which in turn controls the output of the pump. As the adjustment knob is turned down, the stroke length gets shorter and the output is

Mechanically VS Hydraulically Actuated Diaphragm Metering Pumps

This article explains the difference between mechanically actuated diaphragm metering pumps and hydraulically actuated metering pumps. After we go over the basics, we will discuss the advantages of Madden type DDB double diaphragm construction and actuation in comparison to a hydraulic metering pump’s construction and actuation. Overview Mechanically actuated metering pumps are driven by a motor,

Adjusting the Flow Rate/ Output of a Madden Pump

Key Terms Precise: The closeness of two or more measurements to each other. Precision is how often you can repeat the same measurement, regardless of the targeted value. VS. Accurate: The closeness of a measured value to a standard or targeted value. Accuracy is the ability to closely hit a targeted value. Pressure, temperature, and

Madden Chemical Metering Pumps: Made to Order – Customized for your Business

Madden Chemical Metering Pumps: Made to Order – Customized for your Business Madden metering pumps are made to order. When ordering a pump, we will need to know: With this information, our engineers can design a pump to best suit your needs as opposed to selling you something out of a catalog. Let’s take a

Duplex, Triplex, and Multiplex Diaphragm Metering Pumps

Duplex, Triplex, and Multiplex Diaphragm Metering Pumps Among Madden’s many customizable features, customers can duplex (double), triplex (triple), or multiplex (quadruple) the pumping heads. A quick explanation:In the pumping world, this means a mini pumping system built into the pump itself. One motor, one worm gear reducer, and one drive shaft drive 2-4 pumping heads.

Metering Pumps for Sodium Hypochlorite

Metering Pumps for Sodium Hypochlorite When you are selecting a pump for your metering system, it is very important that the wet end of the pump is made of materials that are resistant to the chemical you are pumping. There is a lot of documentation online about chemical resistance. This is a great place to

Cost Effective Chemical Metering Pumps

Cost Effective Chemical Metering Pumps Madden has been in the business of designing and building pumps for over 70 years. We have seen the landscape change as more and more manufacturers move to using cheaper materials and designs that limit lifespan. While other manufacturers have shifted their business models to boost profits and build in

Custom Chemical Feed Systems

Madden JN Series Pump We design and manufacture Custom Chemical Feed SystemS Today we are testing one of JN Series pumps that will be installed in a custom chemical feed system. This system will include a tank, high-speed mixer, variable frequency drive, and pump, all mounted on a platform with suction and relief piping. Our

Chemical Metering Pump Diagram

Chemical Metering Pump Diagram Diaphragm metering pumps are relatively simple in design. Madden pumps generally consist of four main sections: the wetted end, the drive system, the motor, and the output adjustment. Madden builds pumps with rugged materials that stand the test of time. When a part wears out after years of use, the simple

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