Ames Backflows

4" Double Check Detector N Pattern With OSY Valve System

Name: 4" Double Check Detector N Pattern With OSY Valve System
Brand: Ames Backflows
Price: 9312.18 USD
Availability: InStock

4" Double Check Detector N Pattern With OSY Valve System

Product code: C300NOS&Y-0400

$9,312.18

~~$11,174.62~~ $9,312.18

16% OFF

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Description

Technical Specifications (Material Focus):
The 4" Double Check Detector N Pattern with OS&Y Valve System is constructed to excel in fire protection and plumbing systems demanding robust backflow prevention and flow control. The main body is made from fusion-bonded epoxy-coated ductile iron (ASTM A536), designed to withstand the rigors of both commercial and residential water supply environments. Internal components, including springs and fasteners, are fabricated from 300-series stainless steel to resist corrosion and maintain mechanical integrity over time. The double check modules employ glass-filled Noryl™ or equivalent high-strength thermoplastic, guaranteeing durability under variable stresses. EPDM elastomer seats are both reversible and replaceable, ensuring a positive, leak-proof seal and facilitating straightforward maintenance without system disruption.

Regulatory Compliance:
This assembly rigorously complies with essential fire protection and plumbing standards to ensure safety and reliability:

UL Listed: Certified under UL 1469, meeting stringent fire service water control valve criteria.
FM Approved: Factory Mutual certified for fire protection service applications.
ASSE 1015 compliant, fulfilling American Society of Sanitary Engineering standards for backflow prevention.
AWWA C510 compliant, meeting American Water Works Association standards for double check valve assemblies.
Designed to support adherence to NFPA 13 (Sprinkler System Installation) and NFPA 25 (Inspection, Testing, and Maintenance) requirements, including integrated pre-drilled test cocks facilitating mandated annual differential pressure tests.

Operational Compatibility:
Engineered for versatility and ease of integration, this 4" assembly operates at a maximum working pressure of 175 PSI (12.1 bar), accommodating typical fire protection and water distribution system parameters. It supports installation in both horizontal and vertical orientations with upward flow, increasing its adaptability across system layouts. Connection options include flanged ends per ANSI B16.1 and grooved ends conforming to AWWA C606 standards, ensuring compatibility with a wide range of piping configurations. The inclusion of an Outside Stem and Yoke (OS&Y) valve provides clear, visual indication of valve position, enabling quick operational verification for system operators and simplifying maintenance routines.

Application Insight and Value Proposition:
The 4" Double Check Detector N Pattern with OS&Y Valve System is specifically tailored to address common challenges faced in fire protection backflow prevention, such as maintaining hydraulic efficiency while preventing contamination of potable water supplies. Its N-pattern layout optimizes installation flexibility in confined spaces, making it suitable for mechanical rooms and subterranean vaults where space and accessibility are critical. The OS&Y valve enhances operational transparency, a key factor in environments requiring strict monitoring and compliance validation.
This product is ideal for engineers, fire protection contractors, and facility managers seeking a reliable, compliant backflow prevention solution that minimizes pressure losses and simplifies ongoing service demands. It outperforms generic backflow devices by combining durable material construction with practical features like reversible seats and pre-drilled test cocks, reducing downtime and lifecycle maintenance costs.
In comparison to simpler check valves, this assembly offers enhanced protection against backflow contamination, particularly within fire sprinkler systems where the risk of pollutant ingress from fire pumps or auxiliary water supplies is a major concern. Its design supports regulatory inspections by allowing straightforward testing without system disassembly, saving time and ensuring uninterrupted fire protection readiness.

By choosing this 4" Double Check Detector with OS&Y Valve System, you secure a compliant, robust, and maintainable solution that seamlessly integrates with your fire safety infrastructure while delivering reliable backflow prevention and operational clarity.

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Product Details

Technical Specifications (Material Focus):
The 4" Double Check Detector N Pattern with OS&Y Valve System is constructed to excel in fire protection and plumbing systems demanding robust backflow prevention and flow control. The main body is made from fusion-bonded epoxy-coated ductile iron (ASTM A536), designed to withstand the rigors of both commercial and residential water su...

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At Fire Protection Parts, we understand that maintaining effective fire suppression systems requires readily available, high-quality components. We are not a general supplier; our exclusive focus is on fire protection parts, which allows us to offer unparalleled expertise and a comprehensive inventory in this vital niche.

Why Choose Fire Protection Parts?
Unwavering Product Specialization: Our deep focus on fire sprinkler system components, and specific types of suppression system valves ensures our knowledge and resources are entirely dedicated to your systems' intricate needs.

Exceptional Customer Experience: Customers consistently praise our great communication, excellent service, and helpful support. We prioritize clear and timely interactions to meet your needs efficiently.

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Choose Fire Protection Parts as your partner. We deliver specialized products with exceptional service, technical expertise, and reliable speed, dedicated to being your trusted source for all your fire protection needs.

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Shipping & Transit
Carriers: We primarily use reliable carriers like UPS and FedEx. For larger, heavier items, we utilize LTL freight carriers (e.g., FedEx Freight, R & L).

Origin & Handling: Most orders ship from our manufacturer's warehouse in Chicago, IL or warehouse near you. Orders are typically processed within 1-2 business days (M-F), with a 3:00 PM CST cut-off.

Transit Times (US): Standard transit is generally 2-3 business days to all US destinations, resulting in an estimated total delivery time of 2-4 business days from placement.

Free Shipping: We offer free standard ground shipping on orders in stock totaling $1,100.00 or more within the contiguous United States via FedEx Ground.

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Important Note for Freight (LTL)
Thoroughly inspect all LTL shipments for damage before accepting delivery. If damage is present, refuse the delivery and contact us immediately to arrange a replacement.

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Our Return Policy

Effective: April 30, 2025

Your satisfaction is important to Fire Protection Parts. Please review our policy for returns.

General Returns
We accept returns of most new, unused, and resalable items in original packaging within 30 days of receipt. A valid proof of purchase is required.

Initiation: Contact us at info@fireprotectionparts.net to start a return and obtain a Return Merchandise Authorization (RMA) number.

Shipping: The customer is responsible for all return shipping costs to: Fire Protection Parts Returns, 2135 City Gate Ln #3018, Naperville, IL, 60563.

Restocking Fee: A 25% restocking fee will be applied to all eligible returns.

Return and Refund Process
Request RMA: Email info@fireprotectionparts.net.

Package Securely: Include the RMA number clearly inside the package.

Refunds: Once inspected, refunds (less the 25% restocking fee and original shipping) will be credited to your original payment method within 14 business days.

Exceptions
Defective/Damaged Items: Contact us immediately upon receipt for instructions.

Exchanges: Place a new, separate order for the desired item and return the original for a refund (subject to terms).

Special Order Items: These are non-returnable and non-refundable unless the manufacturer accepts the return.

All products are subject to the manufacturer's warranty, not direct warranties from Fire Protection Parts. All sales are governed by our Standard Terms and Conditions of Sale.

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While Fire Protection Parts specializes in providing high-quality fire protection components, we understand that proper installation is crucial for the effectiveness and safety of these systems.

For professional installation services across the United States, we recommend our trusted partner: Fire & Life Safety Consultants.

As a nationwide fire protection contractor, Fire & Life Safety Consultants offers comprehensive installation services for a wide range of fire protection systems.

To inquire about installation services, please:

Visit their website: www.fireandlifesafety.net to learn more about their services and coverage or call (800) 976-2489.

Email job information: Send the details of your installation needs to info@fireprotectionparts.net, and we will forward your inquiry to the team at Fire & Life Safety Consultants.

Please note that while we facilitate this connection, all installation services and agreements will be directly between you and Fire & Life Safety Consultants.

Technical Support

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Please call our experts directly at (866) 906-1526 for immediate assistance.