The Watts 957 RPZ Backflow Preventer is a compact, high-performance device designed to protect potable water supplies from contamination due to backpressure or backsiphonage. Ideal for commercial, industrial, and institutional applications, it features a corrosion-resistant 300 series stainless steel body and sleeve, ensuring durability and reliability. The RPZ assembly includes two independent torsion spring check modules and a differential pressure relief valve, providing maximum protection against reverse flow. Its modular design allows for easy maintenance and serviceability, making it a trusted choice for backflow prevention needs.

Technical Specifications:

• Size Range: 2½" – 10"

• Materials:

  • Body & Sleeve: 300 Series Stainless Steel

  • Check Modules: Torsion Spring with Reversible Elastomer Discs

  • Relief Valve: Stainless Steel Piston Assembly

• Pressure Rating: 175 psi (12.06 bar)

• Temperature Range: 33°F – 140°F (0.5°C – 60°C)

• End Connections: Grooved per AWWA C-606 (IPS) or Flange per ANSI B16.1, Class 125

• Test Ports: 3 Test Cocks