CPVC Special Reinforced Thread Inlet Swing Check Valve — 1 in. SR Fipt x Socket — Spears FlameGuard™ — S1520-10FSRSCO
The Spears FlameGuard™ 1 in. special reinforced thread inlet swing check valve is designed to prevent reverse water flow in CPVC wet fire sprinkler systems. Featuring a reinforced female thread inlet and a CPVC socket outlet, it provides a durable connection to threaded metal components. The valve body is made from fire-protection-grade CPVC, ensuring corrosion resistance and long-term strength. The swing disc closes automatically to maintain system integrity and prevent backflow. The socket end connects to CPVC pipe with ASTM F493-approved solvent cement for a watertight seal.
Follow Spears FlameGuard™ installation guidelines for proper orientation, cleaning, and assembly. Use a CPVC-compatible sealant for the threaded connection and ensure proper tightening to prevent leaks. The reinforced inlet thread provides added durability against torque and vibration. This swing check valve delivers a code-compliant, corrosion-resistant solution for preventing backflow in CPVC wet fire sprinkler systems.

