Mdl 99S Swing Check Valve

The Mdl 99S Swing Check Valve is a specialized backflow prevention device designed for fire protection systems. Ideal for fire safety engineers and system installers, this valve ensures reliable, unidirectional water flow critical for emergency sprinkler and suppression setups.

• Material Strength: Crafted from ASTM A536 ductile iron, providing superior mechanical strength and resistance to corrosion in demanding fire protection environments.
• Certified Compliance: UL Listed to UL 2121 and FM Approved, fully compliant with NFPA 13 and NFPA 25 codes for fire protection valve installation and maintenance.
• Pressure Rating: Engineered to withstand operational pressures up to 175 PSI (12.1 bar), accommodating typical fire system demands.
• Flow Control Mechanism: Utilizes a robust swing check design that promotes smooth, one-way flow while minimizing water hammer effects that can harm downstream components.
• Versatile Integration: Compatible with standard nominal pipe sizes commonly found in commercial and industrial sprinkler systems, streamlining installation.
• Durability in Harsh Conditions: Built to endure temperature fluctuations and mechanical stresses both underground and in exposed mechanical rooms.
• Maintenance Friendly: Designed for easy access and routine inspections without interrupting system service, supporting continuous readiness.

By preventing reverse flow, the Mdl 99S protects fire suppression systems from contamination and potential failures, maintaining system readiness when emergencies occur. Its durable construction combined with certified reliability supports compliance with fire codes and ensures longevity. This valve reduces downtime and extends system life, giving building owners and safety professionals confidence in their fire protection infrastructure.