The Eclipse Series is a two-way stepper-controlled proportional isolation valve for precise liquid and gas control, featuring a ceramic wetted path and zero dead volume. It operates from vacuum to 30 psig (2 bar) with a maximum proof pressure of 50 psig (3.4 bar) and an operating temperature range of 32 to 180°F (0 to 82°C). Flow resolution is 487.5 µl/min for air and 200 µl/min for water at 30 psig, with linearity under 4% of full-scale and repeatability under 5%. Response time is under 2 ms and cycle life exceeds 1 million cycles. It requires a 20 VDC bipolar chopper driver, drawing 2.5 watts nominal during adjustment only. Mounting is via manifold or ZDVF with #10-32 ports. Dimensions are 1.17 in × 2.60 in × 2.91 in (29.7 mm × 66.0 mm × 73.9 mm). An encoder shaft is optional.