CPVC Spigot Female Adapter — 3/4 in. Brass Thread — Spears FlameGuard™ — 4278-007
The Spears FlameGuard™ 3/4 in. spigot female adapter connects CPVC piping to brass-threaded components in wet fire sprinkler systems. Constructed from fire-protection-grade CPVC, it offers superior corrosion resistance and long service life. The brass female thread insert provides a durable, heat-resistant connection that withstands system pressure and temperature variations. The spigot end connects to a CPVC socket fitting using ASTM F493-approved solvent cement for a watertight, permanent joint. 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 systems.
Follow Spears FlameGuard™ installation procedures for cleaning, cementing, and tightening. Use CPVC-safe sealant and tighten to the specified torque. The brass insert ensures consistent thread integrity and provides a secure connection for fire sprinkler applications. This adapter delivers a corrosion-resistant, code-compliant, and UL/FM-approved transition between CPVC and metal components in wet fire sprinkler systems.
