The PrePaK™ Cabinet: now with Vapor Pipe Shield

Preassembled. Proven. Reliable. The PrePaK Cabinet in the Field

You know what’s stressful? Installing a complex fire protection system on a tight timeline. You don’t need delays. You don’t need surprises. You need something that works right out of the box—and that’s exactly what the PrePaK does.

PrePaK™ Orders placed after September 14, 2026, will default to Red powder-coated cabinets. Other than outward appearance, there is no difference in approvals, performance, and the characteristics of the finish itself.

The Real-World Story

Take Notre Dame’s Joyce Center. The team needed to protect a critical telecommunications area, and they needed it done without disrupting daily operations. A Reliable PrePaK cabinet went in, and it worked. No fuss. No field assembly headaches. Just solid fire protection, ready to perform from day one.

That’s the PrePaK difference. It comes fully assembled and tested right here in Liberty, South Carolina. When it arrives at your job site, you’re not building a system—you’re installing one. If you want to see more about Campus Fire Protection, see our video.

See our PrePaK Products or learn more below about PrePaK, which delivers both performance and ease of installation.

Why Contractors and Engineers Love It

The cabinet is designed with you in mind. It fits through a standard 36-inch doorway, so it actually gets where it needs to go. Both sides have access panels. Water supply and drain connections are positioned at common centerlines on both sides. The gauges are visible through the gasketed door. Everything just makes sense.

It’s FM Approved as a complete factory-assembled system. You get the DDX valve—our time-and-field-proven mechanical deluge valve with a latching clapper that helps prevent false trips. The cabinet is powder-coated steel. Lifting eyes makes moving it easier. All electrical connections are pre-wired to a terminal box.

Available in sizes from 2 inches to 8 inches.

Corrosion Protection Built In

Here’s what keeps specifiers up at night: pipe corrosion. Especially in dry or preaction systems. It eats away at your investment and can compromise performance over time.

That’s why we partnered with General Air Products to offer Vapor Pipe Shield corrosion protection—an option that actually works.

It uses VpCI technology to create a protective one-molecule barrier inside your piping. No electricity needed. It’s fully mechanical and pneumatic, so it integrates seamlessly with the rest of your system. And it’s remarkably easy to maintain.

Another option for corrosion protection is the South-Tek N2-Blast Nitrogen Generator. It’s FM Approved and uses pressure swing adsorption to deliver 98% pure nitrogen to the piping network. For systems up to 900 gallons, it limits electrochemical, galvanic, and microbiologically influenced corrosion.

Quiet Operation

In occupied spaces like data centers, libraries, hospitals, and museums, you need fire protection that doesn’t disrupt the environment. The PrePaK operates very quietly—important when people are working nearby. You get reliable performance without the noise.

Built Right. Signed Off.

Here’s something that sets Reliable apart: every PrePaK is assembled in-house by a trained technician. And that technician’s signature goes on the label. Not outsourced. Built by someone who stands behind their work.

Each cabinet passes rigorous performance testing before it leaves our facility. That’s not just a quality control step—that’s confidence.

The Bottom Line

As a contractor, specifier, or engineer, you need systems you can trust. The PrePaK delivers on that promise. It shows up ready to work. It protects occupied spaces where downtime isn’t an option. And with corrosion protection options like Vapor Pipe Shield and N2-Blast, you have solutions that actually stay with the system.

That’s the PrePaK. Preassembled. Proven. Reliable.