CPVC Female Adapter — 1 in. Reinforced Plastic Thread — Spears FlameGuard™ — 4235-010SR
The Spears FlameGuard™ 1 in. CPVC female adapter connects CPVC piping to male-threaded components in wet fire sprinkler systems. Made from fire-protection-grade CPVC, it provides strength, chemical resistance, and long-term reliability. The reinforced plastic threads offer secure engagement and resist cracking or distortion under installation torque. The socket end joins to CPVC pipe using ASTM F493-approved solvent cement to form a watertight, permanent bond. UL Listed and FM Approved, this adapter meets NFPA 13, NFPA 13R, and NFPA 13D standards. Rated for 175 psi and 150°F, it is ideal for residential and light-hazard fire protection systems.
Follow Spears FlameGuard™ instructions for cleaning, solvent cementing, and tightening. Use CPVC-compatible sealants and avoid overtightening to preserve thread integrity. The reinforced thread design provides a dependable, code-compliant connection that maintains UL and FM compliance. This adapter offers a corrosion-resistant, easy-to-install fitting solution for CPVC wet fire sprinkler systems.

