350AST Double Check Backflow Preventer Valve

The Viking 350AST Double Check Backflow Preventer Valve is engineered for fire protection systems, ensuring that your potable water remains uncontaminated during fire sprinkler operation. Designed for industrial, commercial, and residential applications, it balances reliability and compliance with fire safety standards.

• Durable Construction: Crafted from corrosion-resistant ASTM A536 iron with a fusion-bonded epoxy coating to withstand harsh underground and fire service environments.
• Corrosion-Resistant Internals: Incorporates 300-series stainless steel springs and fasteners for enhanced longevity and minimal maintenance requirements.
• Advanced Check Modules: Features glass-filled Noryl™ thermoplastic check modules that provide a consistent, low-wear seal ideal for multiple backflow prevention cycles.
• Reversible EPDM Seats: Equipped with replaceable, reversible EPDM elastomer seats to maintain a positive seal across varying pressures and temperatures.
• Regulatory Compliance: UL 1469 Listed, Factory Mutual (FM) Approved, ASSE 1015 compliant, and meets NFPA 13/25 standards to satisfy fire protection regulatory demands.
• Operational Range: Supports pressures up to 175 PSI (12.1 bar) and operates effectively in temperatures from 33°F to 140°F (0.5°C to 60°C), ensuring adaptability to diverse fire system conditions.
• Installation Versatility: Compatible with ANSI B16.1 flanged ends and AWWA C606 grooved connections, suitable for both horizontal and vertical upward flow orientations for flexible integration.

This valve effectively safeguards water supplies by preventing hazardous backflow contamination in fire sprinkler systems, helping facilities maintain clean water and comply with stringent fire safety codes. Its robust materials and design reduce maintenance needs and system downtime, offering reliable performance over time. Additionally, the compatibility with common piping standards and versatile installation options simplifies setup and lowers labor costs, making it an efficient solution for installers and facility managers focused on operational reliability and regulatory compliance.