CPVC Female Sprinkler Head Adapter — 1 in. x 3/4 in. Reinforced Plastic Thread — Spears FlameGuard™ — 4235-131SR
The Spears FlameGuard™ 1 in. x 3/4 in. female sprinkler head adapter connects CPVC piping to sprinkler heads in wet fire sprinkler systems. Constructed from fire-protection-grade CPVC, it offers corrosion resistance, high strength, and reliability. The reinforced plastic threads are designed to withstand installation torque without cracking while maintaining a tight seal. The socket end joins to CPVC pipe using ASTM F493-approved solvent cement, ensuring a watertight, permanent connection. UL Listed and FM Approved, this fitting complies with NFPA 13, NFPA 13R, and NFPA 13D standards. Rated for 175 psi and 150°F maximum temperature, it’s suitable for residential and light-hazard applications.
Follow Spears FlameGuard™ installation guidelines for pipe cleaning, cementing, and sprinkler head assembly. Apply CPVC-safe sealant and tighten the sprinkler head only to the specified torque. The reinforced thread provides a reliable, corrosion-resistant seal that meets UL and FM certification standards. This adapter delivers a code-compliant, durable connection for CPVC wet fire sprinkler systems.
