This is the upper bonnet and handle assembly

The Watts 0556004 (Model LLL100XL-150) is a specialized 3/4" Temperature and Pressure Relief Valve designed specifically for modern high-efficiency water heaters and storage tanks

High Buoyancy 6-Inch Diameter: Provides the necessary upward force to shut off high-pressure makeup water valves reliably

or CGi boiler with ignition failures or roll-out issues

the contact ratings are suitable for standard pilot duty applications across common control voltages

KMC Controls MCP-8031-3102 Actuator Els PW 17895 This is the upper bonnetThe KMC Controls MCP 8031 3102 Actuator is a heavy duty pneumatic damper actuator specifically engineered for high temperature environments and smoke control systems. Constructed with a durable metal body, this unit is designed to meet UL555S standards for leakage rated dampers, maintaining operation at 450?? F for critical exhaust and containment sequences. Featuring a 5 10 PSI spring range and a precise 1 11 16 inch stroke, this linear pneumatic