4 C200N-NRS
Item Number: 0191218
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$6,560.24
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Estimated transit time: 2 to 5 Business Days
Brand - Ames
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- Nominal Size: 4 inch
- Weight: 249.0 lb
- Housing Material: 304 Stainless Steel
- Shutoff Valves: Non-Rising Stem (NRS) Gate Valves
- Check Type: Patented Tri-Link Checks
- Maximum Working Pressure: 175 PSI
- Installation: N Pattern Horizontal
- Lead Free Construction
- Compact and lightweight design
Description
Description
The Ames Colt 4 inch Lead Free Double Check Valve Backflow Preventer Assembly (Series C200N) is designed to prevent non-potable water and fire protection substances from entering the potable water supply. This unit features 304 stainless steel housing, non-rising stem (NRS) resilient seated gate valves, and patented Tri-Link check modules for minimal pressure loss. It supports N pattern installation and offers a compact, lightweight design with easy maintenance access. Rated for a maximum working pressure of 175 PSI and certified Lead Free, it ensures reliable protection against backpressure and backsiphonage in non-health hazard cross-connections. Item number 0191218.
Help Me Connect
Help Me Connect
This 4 inch backflow preventer assembly is designed for N pattern installation, aligning with the direction of the flow arrow on the assembly.
Its groove fittings allow for integral pipeline adjustment, simplifying connection to existing systems.

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Additional Details
The Colt 4 inch Lead Free Double Check Valve Backflow Preventer Assembly, Series C200N, with non-rising stem (NRS) shutoff valves and Tri-Link checks, is designed for N pattern installations.
This assembly prevents the reverse flow of non-potable fire protection substances and water into the potable water supply due to backsiphonage or backpressure, ideal for non-health hazard cross-connections like fire sprinkler systems.
Features
- Lead Free construction contains less than 0.25% lead by weight on wetted surfaces.
- Extremely compact design, 70% lighter than traditional models.
- 304 (Schedule 40) Stainless steel housing and sleeve.
- Groove fittings allow integral pipeline adjustment.
- Patented Tri-Link check modules provide lowest pressure loss.
- Unmatched ease of serviceability with reversible elastomer discs.
- Available for N pattern installation.
- Includes non-rising stem resilient seated gate valves.
- Equipped with four ball valve type test cocks.
- Single housing, sleeve access port design for easy maintenance without special tools.
Specifications
- Product Type: Double Check Valve Backflow Preventer Assembly
- Series: C200N
- Nominal Size: 4 inch
- Shutoff Valves: Non-Rising Stem (NRS) Resilient Seated Gate Valves
- Housing & Sleeve Material: 304 (Schedule 40) Stainless steel
- Test Cocks Material: Lead Free Bronze
- Tri-Link Checks Material: Noryl®, Stainless Steel
- Elastomers: EPDM, Silicone, Buna 'N'
- Check Discs: Reversible Silicone or EPDM
- Pins & Fasteners: 300 Series Stainless Steel
- Springs: Stainless Steel
- Maximum Working Pressure: 175 PSI (12.1 bar)
- Temperature Range: 33°F - 140°F (0.5°C - 60°C)
- Lead Content: Wetted surfaces contain less than 0.25% lead by weight
- Installation Pattern: N Pattern Horizontal
Certificates & Approvals
- Foundation for Cross-Connection Control and Hydraulic Research (FCCCHR-USC) Approved
- AWWA C510-97
- ASSE 1015
- CSA B64.5
- UL Classified
- FM Approved
- NSF Certified to NSF/ANSI 61-G
FAQs
What is the primary use of this backflow preventer?
This 4 inch double check valve assembly is designed to prevent the reverse flow of non-potable water and fire protection substances into the potable water supply. It protects against backsiphonage and backpressure in non-health hazard applications.
What type of shutoff valves does the C200N-NRS model use?
This specific model, C200N-NRS, is equipped with non-rising stem (NRS) resilient seated gate valves.
What material is the housing made from?
The housing and sleeve of this backflow preventer are constructed from 304 (Schedule 40) Stainless steel for durability and corrosion resistance.
What is the maximum operating pressure for this assembly?
The maximum operating pressure for this 4 inch double check valve assembly is 175 PSI (12.1 bar).
Does this backflow preventer comply with lead-free requirements?
Yes, it features Lead Free construction, meaning the wetted surface contacted by consumable water contains less than 0.25% of lead by weight, complying with relevant standards.