Most check valves are available with Viton, EPDM or Kalrez seals and stainless steel or polypropylene bodies. Check valve substitutions for new equipment are available at the time of purchase.
Welcome to the Lafferty Learning Center
Discover new products and learn how to select, install, operate, and maintain chemical application equipment. The Lafferty Learning Center presents decades of institutional knowledge, tips/tricks, and best practices in a visual multimedia format.
Product specific guidelines are provided in the Installation and Operation Instructions for each unit, which are available on the main Lafferty website.
Core Concepts
Featured Posts
Markets Served
Post Archive
Hose Rack Installation Tip
Learn how to properly install Lafferty stainless steel hose racks to ensure the longest possible service life for hoses and equipment.
Part Details: Watts Series 9D Backflow Preventers #270298, 270299
Backflow preventers are a critical aspect of any chemical dilution equipment. The Watts Series 9D Dual Check Valve with Intermediate Atmospheric Vent is suitable for many installation situations.
Foam Bars with Spreader Nozzles
Lafferty Foam Bars include machined stainless steel Spreader Nozzles, which rotate inward to overlap output for heavier foam coverage over a narrower area, and outward to maximize coverage width.
Color-Coding Options
Color coding helps identify equipment and chemicals, and is a vital step in eliminating cross-contamination. Use different colors to indicate where equipment belongs and how to use it.
ASSE 1055 Certified Mixing Stations
Select Lafferty Mixing Stations are certified to meet ASSE 1055, which is a widely-recognized standard for chemical dilution devices with an integral method of backflow prevention. Operators and inspectors can be...
