Product Overview
The Threaded Low Resistance Backflow Preventer is a high-efficiency device designed to protect potable water systems from backflow contamination while minimizing pressure loss. Featuring threaded connections (NPT) and a low-resistance design, this preventer is ideal for residential, commercial, and light industrial applications where maintaining water pressure and flow efficiency is critical.
Constructed from lead-free materials and compliant with NSF/ANSI 372 and ASSE 1015 standards, this backflow preventer ensures safe and reliable operation in potable water systems. Its compact design and threaded connections make it easy to install in tight spaces, while its optimized internal geometry reduces energy consumption by minimizing pressure drop.
Key Features
Low Resistance Design:Optimized flow path ensures minimal pressure drop, maintaining system efficiency.Ideal for pressure-sensitive applications such as high-rise buildings and long pipelines.
Threaded Connections:NPT threads for easy integration into existing piping systems.Compact design saves space and simplifies installation.
Dual Check Valve System:Two independent check valves provide redundant protection against backflow.Test cocks for easy field testing and maintenance.
Lead-Free Construction:Compliant with NSF/ANSI 372 and Safe Drinking Water Act (SDWA) requirements.Resists corrosion and ensures long-term durability in potable water systems.
Compact & Lightweight:Space-saving design ideal for residential and commercial installations.
Operational Advantages
Energy Efficiency: Low pressure drop reduces pump energy consumption.
Reliable Protection: Dual check valves ensure fail-safe backflow prevention.
Easy Maintenance: Test cocks allow for quick field testing without disassembly.
Corrosion Resistance: Lead-free construction ensures longevity in potable water systems.
Comparison with Traditional Backflow Preventers
| Feature |
Threaded Low Resistance Backflow Preventer |
Traditional Backflow Preventer |
| Pressure Drop |
Minimal (optimized for low resistance) |
Higher (due to complex internal design) |
| Installation |
Compact, threaded connections for easy install |
Bulkier, requires more space |
| Applications |
Ideal for pressure-sensitive systems |
Suitable for high-hazard applications |
| Energy Efficiency |
High (reduced pressure loss) |
Lower (higher pressure loss) |
| Size Range |
½” to 2″ (DN15 to DN50) |
| Pressure Rating |
PN6-PN16，150 LB(10.3 bar) maximum working pressure |
| Temperature Range |
(-29°C to 80°C) |
| Body Material |
Lead-Free Copper Alloy (C84400 or equivalent) |
| Seat Material |
EPDM or NBR (FDA compliant for potable water) |
| End Connections |
Threaded (NPT) |
| Flow Direction |
Horizontal or Vertical (Flow Upwards) |
