UAE companies specializing in fluid and gas distribution equipment offer a wide range of backflow preventer valves, which are critical for protecting potable water sources. Double Check Valve Assemblies (DCVA), Reduced Pressure Zone (RPZ) assemblies, and atmospheric vacuum breakers are essential items. These critical safety devices are built to withstand the extreme circumstances of UAE construction and MEP projects, using materials such as stainless steel, ductile iron, and bronze. DEWA, ADDC, and SEWA ensure compliance with local utility legislation for applications in commercial buildings, industrial facilities, and municipal water distribution networks by meeting strict international standards such as AWWA, ASSE, and UL.
Services include installation advice, dependable bulk delivery to locations around the Emirates, pressure testing and certification by certified personnel, and technical support for system design.
Typical UAE Price Range (AED):
• Double Check Valve Assembly (DCVA) 1"–2": 900 – 4,000
• Reduced Pressure Zone (RPZ) Assembly 1"–4": 3,000 – 18,000
• Pressure Vacuum Breaker (PVB) 3/4"–2": 400 – 1,500.
Note: Pricing usually differs by body material, valve size, body , specific type (DCVA vs. RPZ), certification level, brand, and project order volume.
| Feature | Specification |
|---|---|
| Types | Double Check Valve Assembly (DCVA), Reduced Pressure Zone (RPZ) Assembly, Pressure Vacuum Breaker (PVB), Atmospheric Vacuum Breaker (AVB) |
| Sizes | 1/2" to 10" (Commonly 3/4", 1", 2", 3", 4" for standard building services) |
| Body Materials | Bronze, Ductile Iron, Stainless Steel, Cast Iron |
| Seat/Disc Materials | EPDM, Buna-N, Viton, Polyurethane |
| Connection Types | Flanged, Threaded (NPT, BSP), Grooved |
| Standards | AWWA C510, ASSE Series 1000, UL Listed, FM Approved, NSF/ANSI 61 |
| Max. Working Pressure | Typically 150 PSI (10.3 Bar) to 175 PSI (12 Bar) |
| Temperature Range | -20°C to 80°C (for standard water applications) |
| Application | Potable Water Lines, Fire Sprinkler Systems, Industrial Process Lines, Irrigation Systems |
Apparently you do not make the decision. DEWA's hazard classification for the water usage of your building does. A Double Check valve is often needed for typical residential and business structures. But an RPZ valve is required for bigger establishments like chemical industries, hospitals or fertilizer-fed irrigation systems. It is always beest to check the precise requirements with DEWA directly or with your consultant.
Choose a valve with bronze or stainless-steel body and internal parts that can withstand high temperatures and humidity. Steer clear of regular cast iron in severe or outdoor settings. You can now prevent rust and guarantee long-term dependability without frequent repairs.
It is true that all backflow preventers result in some pressure loss, or head loss, usually ranging from 5 to 12 PSI. Make sure your supplier is aware of these issues with low-pressure systems. When pressure is already an issue, a double check valve is a preferable option because it often has a lesser pressure drop than an RPZ valve.
The brand, certification, and material quality all affect the cost. An unbranded valve will be less expensive than one from a reputable international brand (such as Watts or Zurn) that has full UL/AWWA certification. The certified valve is well worth the money for assurance and approval.
Indeed, many trustworthy vendors in the United Arab Emirates collaborate with or use technicians who are licensed and approved by DEWA/ADDC. They can offer a full range of services, including supplying the appropriate valve, supervising its installation, and conducting the necessary initial test to give you the necessary compliance certificate.
