Sigma/2 Basic motor-free metering pump head, model 04350 PVT, carrying the order code SIBAHM04350PVT00702000. This dosing head is designed for external drive (no motor included) and uses DN25 (G 1 1/2) valves for the liquid end. It is specified to generate up to 58 psi (4 bar) back pressure when driven, with a maximum stroke rate of 200 strokes per minute and a stroke volume of 29.4 ml per stroke, delivering up to 353 L/h (93 US gal/h) at 4 bar. All figures assume water at 20 °C.
