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Metal Finishing

Metal Finishing Application

Stenner peristaltic metering pumps accurately inject brighteners or phosphates for plating baths in the metal finishing industry.


Injecting additives to plating baths in the metal processing industry is necessary to ensure a quality finished product. In addition, depending on the discharge limitations, metal finishing wastewater may require pH adjustment before it is discharged to the drain. Stenner has peristaltic metering pumps for both applications.


The Classic Series single head adjustable pump can inject additives such as brighteners or phosphates for plating baths and acids or alkaline for pH control of metal finishing wastewater. The SVP is a variable speed pump that can be adjusted manually or operate via a 4-20mA signal for pH control systems. Some installations may use two Classic Series fixed output pumps wired to a pH controller for batch treatment systems or continuous chemical feed. Both the Classic single head adjustable and fixed output pumps are available as a Tank System consisting of a metering pump and solution tank that is shipped pre-assembled for easy installation. Tanks can be purchased separately.

The Econ OEM pump can be customized for easy integration into your controller enclosures. The pump is compact and economical and available in a variety of voltages. Capable of metering plating solutions; with outputs up to 2 gallons per hour. The Econ OEM Batch pump is designed for dosing plating additives in precise amounts based on a pre-set run time from .01 seconds to 24 hours per activation. Outputs are available up to 267 ounces per hour at 80 psi. A manual activation switch is standard and customized input signal is optional.

If utilizing a process control system, the S Series is your go-to pump. Select from several modes of operation and pump performance indicators relevant to the specific application. Program features such as tube leak detection, tube change timer or transfer operation to a backup pump.


Installation sites include plating shops and manufacturing facilities.

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