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The Siemens 171E-10209 is a 3/4-inch two-way control valve with a flow coefficient (Cv) of 10 used in building technology and HVAC fluid control applications. The valve is referenced with or integrated to the GMA121.1P actuator in some assemblies. The product is listed as obsolete and has a stated replacement part number 171H-10309. The device provides modulating two-way flow control for heating and cooling systems.
3/4 in two-way control valve with Cv 10; actuator reference GMA121.1P; replacement 171H-10309
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