10 C400N-NRS
Item Number: 0191299Brand - Ames
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- Size: 10 inch
- Weight: 1034.0 lb
- Housing Material: Type 304 (Schedule 40) Stainless Steel
- Maximum Working Pressure: 175 psi
- Configuration: Horizontal N Pattern
- 70% lighter than traditional designs
- Patented link check for lowest pressure loss
- Unmatched ease of serviceability
- Sensor on relief valve for flood detection
Description
Description
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Installation Guidelines
- This assembly is approved for horizontal N pattern installation. Ensure the backflow assembly is installed in accordance with the direction of the flow arrow for optimal performance and code compliance.
- The integral groove fittings allow for easy pipeline adjustment, simplifying installation.
- The integrated flood sensor detects excessive water discharges from the relief valve. An add-on connection kit is required to activate the flood sensor for communication; without it, the sensor acts passively.

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Additional Details
This Colt™ 10 inch Lead Free Reduced Pressure Zone Backflow Preventer Assembly is designed to protect potable water systems from contamination due to backsiphonage and backpressure, in accordance with national plumbing codes and water authority requirements. It is ideal for continuous pressure piping applications and cross-connections identified as health hazards.
This assembly features an extremely compact design, making it suitable for installations where space is limited, and is 70% lighter than traditional designs for easier handling and installation. It is approved for horizontal N pattern installation, ensuring proper flow direction.
Construction & Design
- Features a Type 304 (Schedule 40) stainless steel housing and sleeve for durability.
- Groove fittings for integral pipeline adjustment and easy installation.
- Patented link check modules provide the lowest pressure loss.
- Non-rising stem resilient seated gate valves provide drip-tight shutoff.
- Equipped with test cocks and a bottom-mounted pressure relief valve.
- Includes a sensor on the relief valve for flood detection, designed to detect excessive water discharges.
Ease of Maintenance
- Offers unmatched ease of serviceability.
- Replaceable check disc rubber and reversible silicone or EPDM check discs simplify maintenance.
An add-on connection kit is required to activate the flood sensor. Without this kit, the flood sensor remains a passive component and will not communicate with other devices.
Specifications
- Size: 10 inch
- Housing & Sleeve Material: Type 304 (Schedule 40) Stainless Steel
- Elastomers: EPDM, Silicone, Buna 'N'
- Link Checks Material: Noryl®, Stainless Steel
- Check Discs Material: Reversible Silicone or EPDM
- Test Cocks Material: Lead Free* Bronze Body
- Pins & Fasteners Material: 300 Series Stainless Steel
- Springs Material: Stainless Steel
- Configuration: Horizontal N Pattern
- Temperature Range: 33°F - 140°F (0.5°C - 60°C)
- Maximum Working Pressure: 175 psi (12.1 bar)
Dimensions (Approximate)
- Overall Length (A): 57 3/4 inch (1467 mm)
- Valve End to End (C NRS): 45 3/4 inch (1162 mm)
- Inlet/Outlet Center to Bottom (D): 23 13/16 inch (605 mm)
- Valve Handle Width (G): 11 3/16 inch (285 mm)
- Height (H): 66 inch (1676 mm)
- Relief Valve Outlet Height (J): 49 1/2 inch (1257 mm)
- Pipe Center to Relief Valve Center (M): 32 1/2 inch (826 mm)
- Distance to Top of Valve Stem (P): 17 5/16 inch (440 mm)
Weight
- Weight: 893 lb (405 kg)
Certificates & Approvals
- Approved By: Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
- Standard: AWWA C511-97
- Standard: ASSE 1013
- Standard: CSA B64.4
- Certified To: NSF/ANSI 61-G
FAQs
What is the primary purpose of this backflow preventer assembly?
Is this backflow preventer assembly suitable for outdoor or indoor installation?
What kind of shutoff valves are included with this model?
How does the flood sensor function on this assembly?
What is the maximum operating pressure and temperature for this device?
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