Check Valve Quills

Check valve quills are specialized injection devices used in chemical processing, water treatment, and oil and gas industries to safely and precisely introduce chemicals into pressurized pipelines or vessels. Constructed from corrosion-resistant materials like 316 stainless steel, Hastelloy, or PVC, they ensure compatibility with aggressive chemicals. The integrated check valve, typically a spring-loaded ball or poppet design, prevents backflow, protecting the chemical feed system and maintaining process integrity. Quills feature a threaded or flanged connection for secure installation, with nozzle tips designed to optimize chemical dispersion into the process stream. Available in sizes from 1/4″ to 2″ and pressure ratings up to 3,000 psi, they accommodate various flow rates and viscosities. Some models include adjustable insertion lengths or retractable designs for maintenance without system shutdown. Compact and durable, check valve quills enhance safety, reduce maintenance, and ensure consistent chemical dosing in demanding industrial applications.