4000SS 5000SS 2" First Check Valve for Fire Suppression Systems

The 4000SS/5000SS 2" First Check Valve is a vital component for fire suppression systems, designed specifically for professionals seeking reliable backflow prevention to protect potable water supplies. Crafted for durability and compliance, this valve ensures continuous, unidirectional water flow essential for effective fire protection.

• Material Construction: Manufactured from corrosion-resistant 300 series stainless steel, providing robust durability in harsh environmental conditions typical of fire protection installations.
• Internal Components: Precision-engineered stainless steel springs deliver consistent seating and durability under cyclic pressure demands common in fire suppression operations.
• Sealing Technology: Features EPDM elastomer seals to maintain a leak-proof barrier, critical for preventing backflow across a wide range of temperatures encountered in fire protection settings.
• Regulatory Compliance: UL 1469 listed, FM approved, and meets NFPA 13 and NFPA 25 standards, guaranteeing safety, certification, and adherence to industry codes.
• Pressure Rating: Rated for a maximum working pressure of 175 PSI (12.1 bar), suitable for a broad spectrum of commercial and institutional fire suppression lines.
• Installation Versatility: Compatible with standard NRS threaded and flanged ANSI/AWWA connections; designed for horizontal use but maintains seal integrity in vertical (upward flow) installations.
• Application-Specific Design: Engineered to prevent reverse flow and surge-induced backpressure, protecting upstream components and avoiding contamination of potable water.

This check valve addresses the critical need for reliable backflow prevention in commercial and industrial fire suppression systems, reducing the risk of contamination and mechanical damage. Its stainless steel body extends service life in environments exposed to moisture and temperature fluctuations, minimizing maintenance frequency and costs. Easy to install and replace, it supports streamlined maintenance cycles and testing compliance, making it an advantageous choice for contractors and facility managers committed to operational safety and code conformity.