CPVC Spigot Female Sprinkler Head Adapter — 3/4 in. x 1/2 in. Brass Thread — Spears FlameGuard™ — 4238-101
The Spears FlameGuard™ 3/4 in. x 1/2 in. spigot female sprinkler head adapter connects CPVC piping to brass sprinkler heads in wet fire sprinkler systems. Made from fire-protection-grade CPVC, this adapter offers high strength, corrosion resistance, and long-term durability. It features a brass female thread insert for secure sprinkler attachment and improved heat resistance. The spigot end is designed for connection to a CPVC socket fitting using ASTM F493-approved solvent cement, creating a watertight, permanent seal. UL Listed and FM Approved, this fitting meets NFPA 13, NFPA 13R, and NFPA 13D installation standards. It is rated for 175 psi and 150°F maximum service temperature, suitable for residential and light-hazard systems.
Follow Spears FlameGuard™ installation instructions for cleaning, solvent cementing, and sprinkler head installation. Use CPVC-compatible sealant and avoid overtightening to prevent thread damage. The brass insert ensures reliable engagement with sprinkler heads and resists thermal expansion under system pressure. This adapter provides a corrosion-resistant, code-compliant, and UL/FM-approved connection for CPVC wet fire sprinkler systems.
