TAC DuraDrive Linear Actuators are designed to mount directly onto two-way or three-way valves. They provide linear travel to economically operate 1-1/4" to 2" VB-7xxx, 2-1/2? to 5" VB-8xxx, 2-1/2" to 4" VB-931x, and discontinued 1-1/2? to 4? VB-9xxx valves in hot water, chilled water, and steam applications up to 366?F (186?C) fluid temperature. The linear spring return actuators provide either two position, floating or proportional modulation control (depending on model selection) of valves in HVAC systems.
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