4 3000SS-NRS-GPM
Item Number: 0690494Brand - Ames
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- Product Size: 4 inch
- Weight: 305.0 lb
- Body Material: 300 Series Stainless Steel
- Maximum Operating Pressure: 175 PSI
- Temperature Range: 33°F – 110°F
- Features Cam-Check Assembly for low head loss
- Stainless steel construction for corrosion protection
- Includes 5/8" x 3/4" bronze meter (GPM or CFM)
- Approved for horizontal or vertical "flow up" installation
Description
Description
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Connections & Compatibility
This 4 inch double check detector backflow preventer is specifically designed for fire protection systems to prevent the backflow of non-potable water and fire protection substances into the potable water supply. It is suitable for cross-connections identified as non-health hazards. The assembly features non-rising stem resilient seated gate valves and captured spring check valves, along with four test cocks for verification.

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Additional Details
This 4 inch double check detector backflow preventer assembly is designed for use in accordance with water utility non-health hazard containment requirements, preventing the reverse flow of fire protection system substances and water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage or backpressure.
Primary Use
- Designed for fire protection systems to prevent reverse flow of substances like glycerin wetting agents, stagnant water, and non-potable water from entering the potable water supply.
- Ideal for cross-connections identified as non-health hazards, such as on fire protection systems and from other contaminants at the service line entrance.
Construction & Features
- Features a stainless steel body, making it half the weight of competitive designs for easier installation and reduced shipping costs.
- Includes Cam-Check Assembly valves for low head loss.
- Equipped with non-rising stem resilient seated gate valves and captured spring check valves.
- A single top access cover with a two-bolt grooved style coupling allows for ease of maintenance without special tools.
- Designed for compact construction, accommodating smaller vaults and enclosures.
- Furnished with a 5/8" x 3/4" bronze meter (gpm or cfm) to detect underground leaks and unauthorized water use.
- Can be installed in a horizontal or vertical "flow up" position.
- Stainless steel construction provides long-term corrosion protection and maximum strength.
Specifications
- Product Size: 4 inch
- Body Material: 300 Series stainless steel
- Internal Metal Parts: 300 Series stainless steel
- Check Assembly: Noryl® Flange dimension in accordance with AWWA Class D
- Maximum Working Pressure: 175 psi (12 bar)
- Temperature Range: 33°F – 110°F (0.5°C – 43°C)
- Meter: 5/8" x 3/4" bronze (gpm or cfm)
- Installation Position: Horizontal or vertical "flow up"
Certificates & Approvals
- ASSE 1048
- AWWA C510-92
- CSA B64.5
- UL 1469
- USC Foundation for Cross-Connection Control and Hydraulic Research