Description
The Ansul 439861 “New Metal Blow-Off Caps” are a component of Ansul’s kitchen fire suppression systems, specifically designed for their newer style R-102 and Piranha systems with larger metal caps.
Here’s a breakdown of their features and purpose:
Purpose and Function:
* Nozzle Protection: Their primary function is to cover the fire suppression nozzles, preventing the buildup of grease, dirt, and other foreign particles. This is crucial in commercial kitchens where grease and grime are prevalent.
* System Integrity: By keeping the nozzles clear, they ensure the fire suppression system can discharge effectively and prevent clogging during a fire event.
* Blow-Off Mechanism: When the fire suppression system is activated, these caps are designed to “blow off” the nozzle, allowing the extinguishing agent (wet chemical) to be discharged without obstruction. They typically remain attached by a small ring or cable for reuse.
* High-Temperature Environments: Being metal, they are suitable for high-temperature environments found in commercial kitchens.
Key Features of Ansul 439861:
* Newer Style: These caps are specifically for the “newer style” Ansul R-102 and Piranha kitchen fire suppression systems, which have larger nozzles. The inside diameter is approximately 5/8″ (0.625″).
* Metal Construction: Made of durable metal, often stainless steel, for longevity and resistance to grease and high temperatures.
* Easy Installation: Designed for easy installation, typically by removing the old cap, wrapping the ring around the nozzle, and replacing it with the new cap. No special tools are usually required.
* Maintenance Item: Over time, these caps will accumulate grease and grime and need to be replaced as part of regular system maintenance.
Compatibility:
* They are compatible with newer style Ansul R-102 and Piranha kitchen fire suppression systems.
* It’s important to note they are not for use with Ansul’s older CB nozzles; a different part number (e.g., 09981 or 433208) would be used for those.
Importance:
Regular replacement of blow-off caps, like the Ansul 439861, is vital for maintaining the proper function of a kitchen fire suppression system and ensuring it passes inspections (e.g., by the Fire Marshal). It’s part of the necessary maintenance, which should be performed by an authorized Ansul distributor according to NFPA standards (NFPA 96 and NFPA 17A) at six-month intervals or as needed.
