Knowledge Center


Winterization Guidelines for Chemical Application Equipment

Last updated: 2018-11-07

During winter months, outdoor chemical application equipment is often unused and left outside or put into storage. If the weather or storage environment is going to be near freezing (32° F), your system MUST be properly winterized to avoid cracked and/or broken pumps, valves and lines. Water Driven Systems Detac...


Central Pump Fed Foam Cleaning and Sanitizing Installations

Last updated: 2018-05-03

Choosing and Sizing a Central Chemical Feed System for Pump Fed Applicators We offer all of the equipment (except the piping) required to complete the installation of a Central Pump Fed Foam Cleaning and Sanitizing System for use in Food & Beverage production plants. There are essentially two elements to designing ...


Electric-Activated Solenoid Troubleshooting

Last updated: 2018-05-03


Fogger Frequently Asked Questions

Last updated: 2018-05-03

Foggers are chemical atomizers that use compressed air and venturi action to draw ready-to-use chemical solution and project it as wet or dry fog particles at various distances. Our range of foggers includes hand-held foggers, portable cart foggers, automated full-plant fogging systems, and more. Our fogging systems are built to withstand corros...


Pump-Up O-Ring Replacement Guide

Last updated: 2018-05-03

Introduction Pump-Up Foamer and Sprayers operate by using air in the pressurized tank to propel ready-to-use chemical solution. Therefore, it is critical to ensure that the tank is leak-free and all of the connections are 100%...


Metering Tip Calculator Instructions

Last updated: 2018-05-03

The Metering Tip Calculator will determine the dilution ratio for each color of metering tip based on the actual water pressure supplied to the specific unit being installed. Step-By-Step Instructions: Provide the U...


Consistent Venturi Proportioning

Last updated: 2018-05-03

What is Venturi Proportioning? Venturi proportioning (also known as diluting or mixing) equipment uses water pressure to "draw" chemical concentrate into the water stream, using precision metering tips to control the rate of chemical draw. This method of chemical dilution has many advantages. Most notably, the units are sim...


Balanced System Approach & Equipment Modifications

Last updated: 2016-12-09

The "Complete Balanced System" Approach Our approach to the design and manufacture of chemical application equipment is to create application-specific, integrated, balanced systems that are easy to install and offer years of trouble-free performance. Every venturi style unit includes a machined injector or foamer ...


Foam Cleaning Overview

Last updated: 2015-08-27

There are many reasons to apply chemicals as foam instead of as liquid spray. To appreciate these benefits, it is helpful to understand the different types of foam. Different cleaning objectives and available utilities (compressed air) will determine which type of foam equipment is needed. Keep in mind that foaming may not be the ideal applic...


Lafferty Equipment Manufacturing, Inc.
5614 Oak Grove Road
North Little Rock, AR 72118
TFN: 1-800-999-2820

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