What type of discharge device should Class K fire extinguishers manufactured after January 1, 2002 not be equipped with?

Class K fire extinguishers are specifically designed for firefighting in kitchens where cooking oils and fats are involved. The discharge device plays a crucial role in how effectively the extinguisher can suppress these types of fires. The use of an extended wand type discharge device is contraindicated for Class K extinguishers manufactured after January 1, 2002, because such devices can create a concentrated stream that may displace the extinguishing agent instead of applying it broadly and effectively.

In the case of kitchen fires, a broad application of the extinguishing agent is essential to cover the burning surface adequately without causing the fire to spread. The design of Class K extinguishers has evolved to improve safety and functionality in responding to such fires, which is why they are equipped instead with standard nozzles or other discharge devices that allow for better dispersion of the agent across the grease fires. Consequently, avoiding extended wands ensures that the extinguishing agent is applied in a manner that aligns with best practices for kitchen fire safety.