Why NFPA 69 exists

In industries handling dry bulk materials like flour, sugar, or plastic pellets, safety is paramount. Many of these materials can create potentially explosive dust or gas when processed. NFPA 69, the Standard on Explosion Prevention Systems, provides essential guidelines for preventing and controlling explosions in industrial settings.

The standard helps manufacturers implement effective prevention measures, ensuring operations remain safe even when handling potentially hazardous materials. For companies working with dry bulk materials, compliance with NFPA 69 isn't just about following regulations – it's about protecting lives and assets.

The challenge with traditional compliance

Following traditional NFPA guidelines for rotary valves often creates challenges for manufacturers. The conventional approach imposes strict limitations on design elements such as clearances, materials, bearing placements, and system configurations. These constraints can make it difficult to optimise rotary valves for specific applications, potentially compromising system efficiency and performance.

Many operations require greater flexibility to handle temperature variations, accommodate material characteristics, or ensure practical maintenance schedules. When standard requirements limit these options, manufacturers may find themselves choosing between strict safety compliance and operational effectiveness.

DMN-WESTINGHOUSE's performance-based approach

DMN-WESTINGHOUSE takes a different approach to NFPA 69 compliance – one based on performance rather than prescriptive guidelines. Through extensive real-world testing, we have proven that our rotary valves can safely meet NFPA 69 and beyond. These tests were conducted by accredited facilities and certified by notified bodies, ensuring all safety objectives are met while providing greater flexibility. Download our NFPA 96 white paper to learn everything about our performance-based approach.