Spring, Flow Control Valve A precision-engineered spring component that regulates water pressure and flow distribution in fire suppression systems. This critical part maintains consistent flow rates across wet, dry, pre-action, and deluge system configurations, preventing pressure surges and ensuring reliable sprinkler activation. Manufactured from corrosion-resistant materials engineered to withstand demanding industrial and commercial environments. The spring maintains mechanical integrity under sustained pressure cycles, delivering long-term performance without degradation. Seamlessly integrates with standard Viking sprinkler frames and compatible system architectures. Essential for optimizing system responsiveness and protecting against pressure-related failures that could compromise fire protection effectiveness. Meets cULus and FM approval standards. Compliant with NFPA 13 guidelines and national fire safety codes for sprinkler system installation and operation.