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The Siemens GMA121
keeping manifold pressure stable and furnace operation reliable during peak heating demand
which includes an integral stainless steel mounting flange for simplified installation
Durable Construction: High-grade galvanized steel provides superior resistance to rust and chemical biological growth compared to plastic pans
it is rated for use with saturated steam up to 15 psig
Resideo V8043E1411 Valve 318423-701 The Siemens GMA121The Resideo V8043E1411 is a professional grade 1 2" ProPress zone valve engineered for precise hydrologic flow control in closed loop systems. This 24V normally closed valve features a high torque actuator and a straight through body design, ensuring minimal pressure drop and reliable performance in baseboard radiation, convectors, and fan coil applications. Designed with a low voltage motor and a built in end switch, it allows for seamless sequencing
