N-CAP-10 Buckeye Mister System Rubber Caps (Pack of 10) OEM

The Buckeye N-CAP-10 Mister System Rubber Caps are indispensable protective components for maintaining the operational readiness of your fire suppression system. Specifically engineered for the Buckeye Kitchen Mister line, these caps serve as a primary barrier against the aggressive conditions of a commercial cooking environment. Over time, airborne grease, carbonized particles, and dust can migrate into open nozzle orifices, potentially creating blockages that compromise the agent spray pattern during a fire emergency.

Sold in a convenient pack of 10, the N-CAP-10 ensures that service technicians and facility managers have a ready supply for routine maintenance. By keeping the nozzle internals sealed, these caps prevent grease buildup from hardening inside the precision-machined bore, ensuring that the wet chemical extinguishing agent can flow freely and accurately when every second counts. For safety directors, these caps are a low-cost, high-impact investment in fire system reliability.

The Science of Readiness: Blow-Off Pressure and Nozzle Hygiene

Calibrated Blow-Off Force

The N-CAP-10 is a pressure-ejected component. It is engineered with a specific friction-fit tolerance that holds steady against the suction of exhaust fans but yields instantly to the hydraulic discharge pressure of the Buckeye system. This ensures the cap is blown off the moment the system trips, maintaining the required system response time.

Elastomeric Thermal Resistance

Manufactured from high-grade, heat-resistant rubber, these caps are designed to survive the constant thermal cycling found directly above charbroilers and fryers. The material remains flexible even after months of exposure to high-ambient temperatures, preventing the cracking or baking-on that occurs with inferior, non-OEM alternatives.

Preserving the Mister Mechanism

The Buckeye Kitchen Mister relies on a specialized internal orifice to create a fine mist for grease fire knockdown. The N-CAP-10 protects this delicate internal geometry from the carbonized food particles that act as abrasives or clogs, preserving the nozzle's hydraulic balance.

• High-Volume Fryer Stations: Protecting nozzles from the constant oil splatter and vapor inherent in deep-frying operations.
• Charbroiler and Grill Lines: Safeguarding the suppression system from the intense grease vapor and carbon buildup of open-flame cooking.
• Institutional Cafeterias: Essential for schools and hospitals where nozzle hygiene and system uptime are critical for public safety.
• Commercial Food Processing: Providing a durable solution for high-moisture production lines where nozzle protection is a mandatory safety protocol.
• Professional Hood Cleaning: Used as replacement caps following a deep cleaning of the kitchen exhaust system to ensure the nozzles are re-sealed immediately.

To ensure the N-CAP-10 functions correctly during a kitchen fire emergency, follow these professional protocols:

• Semi-Annual Inspection: During the mandatory 6-month check, a certified technician must remove and inspect each cap. If the rubber feels brittle or tacky from grease, it should be replaced with a fresh unit from the N-CAP-10 pack.
• Post-Discharge Protocol: It is standard industry practice to replace all nozzle caps following a suppression system discharge. The pressure and chemical agent can stretch the rubber, compromising the friction-fit for future use.
• Cleaning Nozzle Tips: Before installing a new cap, the nozzle orifice should be wiped clean with a degreaser. Installing a cap over existing grease can trap the debris inside the nozzle, defeating the purpose of the shield.
• Verification of Fit: Ensure the cap is pushed firmly onto the nozzle tip but not bottomed out so hard that it interferes with the blow-off action.

Will these caps prevent the fire suppression system from working?
No. These are blow-off style covers. While they keep dirt out, the pressure of the extinguishing agent is more than enough to instantly eject the cap, allowing for a full and proper spray pattern.

How often should N-CAP-10 rubber caps be replaced?
They should be inspected every 6 months. If they appear heavily coated in grease, cracked, or lose their elasticity, replace them immediately. They are a disposable fire safety item designed for regular replacement to ensure nozzle readiness.

Can I use these on Ansul or Range Guard nozzles?
No. While they may look similar, the N-CAP-10 is specifically tested for Buckeye Mister systems. Using mismatched caps can void your fire insurance policy and fail a fire marshal inspection due to non-OEM compliance.