Chemical Metering Pumps - Three Pump Series
Madden diaphragm chemical metering pumps are designed for tough jobs where chemicals must be accurately pumped all day long, year round. Engineered materials are used for the wetted end to pump virtually any chemical, from acids to caustics. Even viscous liquids and suspended solids can be metered and pumped with precise accuracy.
PreciseRepeatable accuracy of +/- 1% over a 10:1 turndown ratio is maintained with the stroke adjustment control located conveniently on the top of the chemical metering pump.
Long Life, Low UpkeepThe simple mechanically actuated diaphragm design eliminates irritating hydraulic systems and packing glands used in many chemical metering pumps. Large bearings and shafts, continuously lubricated with a bath of oil give many years of dependable service. Precision bronze worm gears and steel worm drive shafts convert motor rpms to linear piston pumping power. Replacing worn parts is quick and easy, and accomplished with common tools.
Chemical metering pumps by Madden are heavy duty industrial grade, using standard industrial 56 frame motors and worm gear reducers to produce reliable chemical pumping power designed to provide years of dependable service.
- Heavy duty aluminum gear box and pump body castings
- Precision machined and bolted assembly
- Wetted end parts made from a selection of corrosion resistant material.
- Thick Nylon reinforced diaphragms for tough pumping service.
- Industrial grade 56 frame electrical motors are available to meet any enclosure and power supply requirement.
Why use a Madden chemical metering pump?… It will be the work horse of your chemical metering system.
|Chemical Metering Pumps|
Chemicals are added to many processes in industrial plants to produce a desired outcome, such as changing the pH of water. Adding too much of the chemical will waste money and it could also reduce the desired outcome that was required in the first place. A chemical metering pump is designed to enable the operator to control the rate of chemical addition to make sure the results are within the limits of the specifications for the process.
Type DDB Double DiaphragmOften times when chemical metering applications arise, the chemical needing to be metered is a corrosive and dangerous chemical. These chemicals are not only harmful to human skin, but they can be extremely corrosive to metals, rubbers, and other materials found in the plant. When dealing with corrosive chemicals like this, parts fatiguing on the pump is inevitable. And a potential leak or rupture in the pumping system can have dangerous and costly consequences. Madden's Type DDB Double Diaphragm construction is a feature meant to minimize/eliminate the dangers and potential losses that result from a rupture or leak in the system. This is achieved by adding safety features to the pump to ensure the operator that the corrosive liquid will not enter the interior of the pump or leak on the shop floor. And it's dry mechanical design means never having to worry about hydraulic barrier fluids
|Standard, single diaphragm design||Type DDB double diaphragm design|
Construction: The DDB double diaphragm construction design adds a spacer and another, backup/secondary diaphragm to the chemical pump’s wetted end to ensure the corrosive chemical, like caustic soda, never reaches inside and damages the pump’s interior components. This is one big reason why, when properly maintained, there are Madden chemical metering pumps out there that have lasted for over 25 years with only minor wetted end parts needing to be replaced.
The picture above is of a Madden JN series pump with a standard, single primary diaphragm design, and a Madden JN series type DDB double diaphragm design.
Leak Detecting Pressure Switch
Madden Metering Pump Selection GuideFor the cleanest and easiest way to inquire about a Madden metering pump, download this fillable pump selection guide, fill it out, and upload it through the RFQ section of our website. We take pride in responding promptly!
Chemical Metering Pumps - Three Pump Series - Made to OrderMadden Manufacturing doesn’t just manufacture chemical metering pumps. We also put together entire chemical metering systems.
|Example 1 of a made to order system||Example 2 of a made to order system|
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