CPVC TorqueSafe™ Female Sprinkler Head Adapter — 1 in. x 1/2 in. Gasket Sealed Brass Thread — Spears FlameGuard™ — 4235-130GS
The Spears FlameGuard™ TorqueSafe™ 1 in. x 1/2 in. female sprinkler head adapter connects CPVC piping to brass sprinkler heads in wet fire sprinkler systems. Constructed from fire-protection-grade CPVC, it includes a brass insert with a gasket-sealed female thread that ensures a watertight, reusable connection. The TorqueSafe™ design features a built-in stop that prevents overtightening and minimizes stress on the CPVC body. The socket end bonds to CPVC pipe using ASTM F493-approved solvent cement to create a secure, permanent seal. UL Listed and FM Approved, this fitting meets NFPA 13, NFPA 13R, and NFPA 13D standards. Rated for 175 psi and 150°F maximum service temperature, it’s ideal for residential and light-hazard fire sprinkler systems.
Follow Spears FlameGuard™ installation instructions for pipe preparation, solvent cementing, and sprinkler head assembly. Use CPVC-approved thread sealant and adhere to recommended torque settings. The gasket seal ensures consistent, leak-free performance and extends service life by reducing thread wear. This adapter offers a durable, corrosion-resistant, and code-compliant connection that meets UL and FM listing requirements for CPVC wet fire sprinkler systems.

