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.
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Pressure Washer Foamers & Sprayers – Frequently Asked Questions
Lafferty Pressure Washer Foamers and Sprayers use a pressure washer to dilute chemical concentrate on demand and project liquid spray or wet, clinging foam. This post provides answers to some of the most common...
Part Details: Compressed Air Regulator #288350
Lafferty Part #288350 Regulator / Filter, Air, 1/4″ with Weep Used to regulate air pressure in various applications. In many systems, this regulator sets the pump pressure should not be adjusted during the course...
Drum, Pail and Jug-Mounted Equipment
Lafferty manufactures venturi Foamers, Sprayers, and Mixing Stations that mount onto, and dispense directly from, containers of concentrated chemical.
Winterization Guidelines
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...
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.
Tube Lock Fittings for WR Systems
Lafferty WR (Wash / Rinse) Systems include tube lock (or push lock) fittings to easily remove the water inlet manifold from the injector body.
