Spring Return Valve Actuator for VB-7XXX Series

Description:

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. Features Two position models controlled by SPST controller Floating models controlled by SPDT floating controllers Proportional models controlled by 2-10 Vdc, or 4-20 mAdc with the addition of a 500 ohm resistor. Control function direct/reverse action is switch selectable 220 lb force (979 newton) with 1/2? (13 mm) or 1" (25 mm) nominal linear stroke Automatically sets control signal input span to match valve travel 24 Vac, 120 Vac, and 230 Vac models Rugged die-cast enclosures rated for NEMA 2, UL Type 2/IP54 Overload protection throughout stroke Compact size for application flexibility Manual override to allow positioning of valve and preload Integral linkage for direct mount to valves Five year warranty