This screw-in water heater element features 1-inch NPSM threads (1-1/2 inch hex head) and a 19

Integrated as a primary safety limit

Rely on these Spence valve repair parts for a factory-spec fit that maintains the packless

and 3155 Series units

Built with a durable probe housing and a standard two-wire thermal connection

Siemens Building Technology GMA131.1U Actuator R-407C This screw-in water heater elementThe Siemens Building Technology GMA131. 1U is a specialized OpenAir electronic damper actuator engineered for commercial HVAC applications. This 24V spring return actuator provides 62 lb in torque (7 Nm), making it an ideal choice for managing return air, mixed air, and exhaust dampers in both constant and variable air volume (VAV) systems. Designed with three position control (floating), it allows for precise positioning while ensuring a reliable