Adjustable break cap for fire department (siamese) connection, 2.5 inch, for any hose thread

2.5" Disposable Breakaway Cap for Siamese Connection – Fits All Threads

This disposable shutter (often called a "breakaway cap" or "security cap") is a universal and economical solution for protecting fire department connections (FDC). Unlike traditional threaded caps, this model is designed to be pressed into place and is meant to be broken or removed instantly during an emergency response.

Why Choose This Disposable Breakaway Cap?

• Universal Compatibility: Since it does not rely on threads, it fits all types of 2.5-inch inlets regardless of the thread standard (QST, CSA, NST, etc.).

• Protection Against the Elements: Prevents the accumulation of ice, snow, bird nests, or debris inside the Siamese connection, ensuring the conduit remains clear.

• Vandalism Deterrent: Protects the internal check valves from the insertion of foreign objects (like cans or stones) that could paralyze the fire protection system.

• Rapid Access: Firefighters can break it with a single blow from an axe or pull it off quickly without struggling with a metal cap that might be seized by rust or ice.

• Low Cost and Anti-Theft: Made of plastic, it has no resale value, eliminating the frequent thefts associated with brass caps.

Technical Specifications

• Diameter: 2.5 inches (65 mm).

• Material: Breakable rigid plastic.

• Installation: Pressure-fit or secured via set screws (depending on the specific model).

• Color: Usually bright red for maximum visibility.

• Usage: Temporary or permanent protection for Siamese inlets.

Frequently Asked Questions (FAQ)

Is this shutter reusable?

No. It is designed to be disposable. Once broken by firefighters during an intervention or a pressure test, it must be replaced with a new one.

Can it be installed on an indoor fire valve?

Yes, it can be used on any 2.5-inch male or female fitting to prevent dust accumulation, though it is primarily used on exterior Siamese connections.

Is it compliant with fire prevention codes?

Yes, most fire departments accept and even recommend these shutters in areas with a high risk of vandalism or metal theft, as they guarantee faster access than a locked or jammed metal cap.

How does it stay in place if it isn't threaded?

It is designed with adjustable tabs or a rim that grips the inside or outside of the fitting to ensure a firm hold against wind and weather.

OHS Expert Advice

The disposable breakaway cap is the perfect solution for building managers who find themselves constantly replacing stolen brass caps. It is a critical safety measure: a Siamese connection without protection eventually fills with debris, and if firefighters cannot connect their hoses, the building's entire sprinkler system becomes useless. Check during your monthly rounds to ensure they are still in place and have not been cracked by an impact.

Do you need additional safety equipment?

Check out these items:  18-inch orange warning cone (EPTCONE), yellow plastic monthly inspection tag (IPTAG4), 10 lb class ABC portable powder fire extinguisher (EXABC10), outdoor plastic surface cabinet (EC9), 20 lb portable powder fire extinguisher (EXABC20).

Under “Accessories” at the bottom of the page. If you are looking for work equipment, check out the following products: Stopper II cover without local alarm (ECSTI1200FRE), manual wall-mounted fire alarm station (ECST270), or Weather Stopper cover (ECSTI3150FRE).

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