Pressure Reducer Backflow Preventer offers a certified, durable, and effective option. Engineered with precision and built from high-quality bronze, this reduced pressure zone (RPZ) backflow preventer ensures a safe, uninterrupted water supply while protecting potable systems from potential reverse flow.
Key Features of CALEFFI 574800
The CALEFFI 574800 is a BA type backflow preventer that includes a pressure reducer and a controllable RPZ (Reduced Pressure Zone) for optimal safety and performance. Notably, it is certified to EN 12729, making it suitable for a wide range of applications in domestic, commercial, and industrial water systems.
Product Highlights:
- ✅ Certified to EN 12729 (BA Type)
- ✅ Controllable reduced pressure zone backflow preventer
- ✅ Bronze body for corrosion resistance and durability
- ✅ Requires upstream installation of 577 Series strainer
- ✅ Ideal for potable water applications
- ✅ Ensures protection against backpressure and back siphonage
Technical Specifications
| Parameter | Details |
|---|---|
| Model | CALEFFI 574800 |
| Connection Type | R 1 1/2″ Male (EN 10226-1), union |
| Differential Operating Pressure | 14 kPa |
| Medium Temperature Range | 5–65 °C |
| Nominal Pressure | PN 10 |
| Material | Bronze |
| Installation Requirement | Strainer 577 series (upstream) |
Why Choose a Pressure Reducer Backflow Preventer?
A pressure reducer backflow preventer combines two crucial functions: maintaining optimal downstream pressure and preventing the reverse flow of potentially contaminated water. This dual-purpose device ensures system efficiency and compliance with health and safety standards.
How It Works:
First, the pressure reducer regulates the flow, keeping downstream pressure stable even with fluctuating inlet pressure. Simultaneously, the backflow preventer creates a reduced pressure zone (RPZ), which activates if backflow is detected. This mechanism safely diverts or discharges any potentially contaminated water before it can enter the clean supply line.
Moreover, the BA type configuration, with its double-check valves and controllable discharge, provides advanced protection compared to standard backflow devices.
Applications
Thanks to its compact design and robust materials, this bronze pressure reducer with backflow preventer fits perfectly in various settings, such as:
- Commercial plumbing systems
- Industrial water supply lines
- Residential water systems
- HVAC and mechanical equipment
- Irrigation systems requiring potable water protection
Additionally, its EN 12729 certification ensures it meets European compliance standards for safety and backflow prevention.
Final Thoughts
The CALEFFI 574800 pressure backflow preventer delivers outstanding performance, safety, and compliance in a compact, bronze-bodied unit. Whether you’re installing it in a residential or industrial system, it provides long-term protection against contamination and pressure instability.
