8 C200N-NRS
Item Number: 0191220Brand - Ames
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- 8 inch Double Check Valve Backflow Preventer
- Weight: 706.0 lb
- Housing & Sleeve: 304 (Schedule 40) Stainless Steel
- Maximum Operating Pressure: 175 psi
- Non-Rising Stem (NRS) Resilient Seated Gate Valves
- Lead Free Construction: Wetted surface < 0.25% lead
- Patented Tri-Link Check modules for lowest pressure loss
- Compact design, 70% lighter than traditional models
- Approved for N Pattern Horizontal installation
Description
Description
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This 8 inch double check valve backflow preventer assembly features groove end connections for integral pipeline adjustment.
It is specifically designed and approved for N Pattern Horizontal installation, aligning with the direction of flow. Ensure connections are made to compatible grooved piping systems.

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Additional Details
This Colt™ 8 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and/or backpressure in accordance with national plumbing codes and water authority requirements.
It is ideal for protection at cross-connections identified as non-health hazards such as on fire sprinkler systems and from other contaminants found at the service line entrance.
Construction & Design
- Features an extremely compact modular design with a single access sleeve for easy maintenance
- Approximately 70% lighter than traditional designs
- Consists of a 304 (Schedule 40) stainless steel body, Tri-Link check valves, non-rising stem resilient seated gate valves, and test cocks
- Groove fittings allow integral pipeline adjustment for easier installation
Performance
- Patented Tri-Link check modules provide the lowest pressure loss
- Unmatched ease of serviceability with components removable without special tools
- Reversible elastomer check disc rubber for extended lifespan
The wetted surface of this product contacted by consumable water contains less than 0.25% of lead by weight.
Specifications
- Size: 8 inch
- Model: C200N (NRS Shutoff Valves)
- Configuration: N Pattern Horizontal
- Maximum Working Pressure: 175 psi (12.1 bar)
- Temperature Range: 33°F - 140°F (0.5°C ~ 60°C)
- Lead Content: Wetted surface contains less than 0.25% of lead by weight
Materials
- Housing & Sleeve Material: 304 (Schedule 40) Stainless steel
- Elastomer Material: EPDM, silicone, and Buna 'N'
- Tri-Link Check Material: Noryl®, stainless steel
- Check Disc Material: Reversible silicone or EPDM
- Test Cock Material: Lead Free* bronze body
- Pins & Fasteners Material: 300 series stainless steel
- Spring Material: Stainless steel
Dimensions (Approximate)
- A: 49 3/4 in (1264 mm)
- C: 37 3/4 in (959 mm)
- D: 6 11/16 in (170 mm)
- G: 54 1/8 in (1375 mm)
- H: 27 7/16 in (697 mm)
- J: 15 11/16 in (399 mm)
- P: 17 3/16 in (437 mm)
Weight (Approximate)
- Weight: 314 lb (142 kg)
Certificates & Approvals
- Approved by Foundation for Cross-Connection Control and Hydraulic Research at The University of Southern California (FCCCHR-USC)
- AWWA C510-97
- ASSE 1015
- CSA B64.5