CASH ACME RELIEF VALVE: Cash Acme NCLX Combination Temperature and Pressure Relief Valves are designed for the protection of water heaters and storage tanks; incorporate an inert thermal element coating that provides effective isolation from mineral deposits (liming) and galvanic corrosion | DESIGN: The NCLX Series relief valves feature a cast bronze body, brass, and stainless steel internal parts, silicone seat disc, and stainless steel pressure spring | COMPACT: Pressure-reducing and regulating valves | SPECS: NCLX Valves come with standard factory settings of 150 PSI for pressure relief and 210 degrees F for temperature relief | CERTIFIED: The NCLX Temperature and Pressure Relief Valve is certified to be lead-free in accordance with NSF 319; compliant with ASSE standard 1003 and CSA standard B358